Actuators ,Valves Selection

Design and Application Guidefor the Honeywell

Valves and Actuators

® U.S. Registered TrademarkCopyright © 1998 Honeywell Inc. • All Rights Reserved

Includes Information on:• Valve Types• Valve Construction• Valve Applications• Sizing and Installation• Actuator Types• Installation Procedures• Wiring Diagrams

63-7035

63-7035 Honeywell Valves and Actuators

- Page 3

Types of Valves ....................................................................................................................................... 7Application of Valve and Damper Actuators .......................................................................................... 8Damper and Valve Actuator Usage in a 5 Story Building ...................................................................... 9Components of a Valve ........................................................................................................................... 10Valve Pressure Ratings ............................................................................................................................ 11Stem Lift .................................................................................................................................................. 12Disc, Stem and Plug Assemblies ............................................................................................................. 13Valve Plugs .............................................................................................................................................. 14Linear and Equal Percentage Plugs ......................................................................................................... 15Purpose for Not Using Linear Plugs in Hot Water Valves ...................................................................... 16Modified Plugs ........................................................................................................................................ 17Stem-Down-to-Open and Stem-Down-to-Close Valves ......................................................................... 18Normally Open and Normally Closed Valve Assemblies ....................................................................... 19Valve Assemblies and Close-Off Ratings ............................................................................................... 20Steam-To-Hot Water Converter .............................................................................................................. 21Three-Way Valves ................................................................................................................................... 22Three-Way Mixing Valve Components .................................................................................................. 23Three-Way Mixing Hot Water Reset Application ................................................................................... 24Diverting Valve Components .................................................................................................................. 25Cooling Tower Application of Diverting Valve ...................................................................................... 26Butterfly Valves ....................................................................................................................................... 27Butterfly Valves On a Tower Cooling Application ................................................................................. 28Gate and Cartridge Type Valves ............................................................................................................. 29V4043, V4044, V8043, V8044 Two-Position Valves ............................................................................. 30Valve Repacking ..................................................................................................................................... 31Rebuilding Valves ................................................................................................................................... 32Cv and Flow Rates Through Valve Ports ................................................................................................ 33Piping and Fluid Maintenance ................................................................................................................. 34Corrosion, Water Balance and Control Valves ....................................................................................... 35

Contents-

Honeywell Valves and Actuators Design and Application Manual-Page 1

EQUALPERCENTAGE

PLUGLINEARPLUG

VALVECONSTRUCTION

ANDAPPLICATIONS


- Page 4

Spring Return and Non-Spring Return Actuators ....................................................................................37Types of Control Circuits Used with Direct Coupled Actuators .............................................................38Two-Position and Modulation Control Modes ........................................................................................39Series 40 and 80 Control ..........................................................................................................................40Auxiliary Switch Application ..................................................................................................................41Series 60 Control ......................................................................................................................................42Series 70 with Direct Digital Controller ..................................................................................................43Series 90 Control ......................................................................................................................................44

Table Listing of Honeywell Commercial Valves Page 1 ........................................................................ 46Table Listing of Honeywell Commercial Valves Page 2 ........................................................................ 47

Ball Valve Components ...........................................................................................................................49Ball Valve Rotation Limits ......................................................................................................................50Ball Valve Spring Return Actuator Installation Procedure Page 1 .........................................................51Ball Valve Spring Return Actuator Installation Procedure Page 2 .........................................................52Ball Valve Spring Return Actuator Installation Procedure Page 3 .........................................................53Three-Way Ball Valves ...........................................................................................................................54Direct Coupled Actuators ........................................................................................................................55Components of a Spring Return Direct Coupled Actuator ......................................................................5650 pound (6 N-m) Spring Return Actuators on Ball Valves ...................................................................57Rotation & Spring Return Reversal for 50 lb-in (6 N-m) Spring Return Actuators ...............................58Hub Inserts for 50 Lb-in (6 N-M) Actuators ...........................................................................................59150 lb-in (17 N-m) Non-Spring Return Actuator Components ...............................................................60300 lb-in (34 N-m) Non-Spring Return Actuator Components ...............................................................61142 LB (16N-m) Spring Return Actuator Components ..........................................................................62142 LB (16N-m) Spring Return Actuator Rotation and Hub Reversal ...................................................63142 LB (16N-m) Spring Return Actuator Auxiliary Switch Adjustments ..............................................64ML61/71 Actuators ..................................................................................................................................65

BALL VALVESAND DIRECT

COUPLEDACTUATORS

BALL VALVESAND DIRECT

COUPLEDACTUATORS

Contents-


CONTROL THEORY ANDSERIES GROUPS

B

R

W


- Page 5

Contents-


ML6421/ML6425/ML7421/ML7425 VALVE ACTUATORSFOR COMMERCIAL GLOBE

VALVES SERIES

ML6421/ 6425/ 7421/ 7425 Valve Actuators ......................................................................................... 67ML6421/ 7421 Valve Actuator Installation Procedure ........................................................................... 68ML7425 Valve Actuator Installation Page 1 .......................................................................................... 69ML7425 Valve Actuator Installation Page 2 .......................................................................................... 70ML6421/ 6425 Valve Actuator Wiring Diagrams .................................................................................. 71ML7421 Valve Actuator Wiring Diagrams ............................................................................................ 72ML7421 Valve Actuator Control Functions ........................................................................................... 73ML7425 Valve Actuator Wiring Diagrams ............................................................................................ 74ML7425 Valve Actuator Jumper Plug Settings ...................................................................................... 75

ML7984 Valve Actuator ......................................................................................................................... 77ML7984 Valve Actuator Application Requirements .............................................................................. 78ML7984 Valve Actuator Installation Procedure Page 1 ......................................................................... 79ML7984 Valve Actuator Installation Procedure Page 2 ......................................................................... 80ML7984 Valve Actuator Installation Procedure Page 3 ......................................................................... 81ML7984A Valve Actuator Switch Settings ............................................................................................ 82Pulse Width Modulation .......................................................................................................................... 83ML7984B Pulse Width Modulation Valve Actuator .............................................................................. 84ML7984B Valve Actuator Switch Settings ............................................................................................. 85

ML7984 VALVE ACTUATORFOR GLOBE VALVES


- Page 6

Mod IV Valve and Damper Actuators .................................................................................................... 87Accessories for Mod IV Actuators .......................................................................................................... 88Accessory Control Circuit Modules for Mod IV Actuators .................................................................... 89Mod IV Actuators Used with a Q618 Valve Linkage ............................................................................. 90Q5001 Valve Linkage for Mod III and IV Actuators Installation Page 1 ............................................... 91Q5001 Valve Linkage for Mod III and IV Actuators Installation Page 2 ............................................... 92

Pneumatic Actuators ................................................................................................................................ 93Positive Positioners ................................................................................................................................. 94Electronic-to-Pneumatic Transducers ..................................................................................................... 95

V5852/53 and V5862/63 Unitary Valves ................................................................................................ 97Unit Ventilator Control Sequences .......................................................................................................... 98Unit Ventilator DDC Application with V5852/53 and V5862/63 Valves .............................................. 99Unit Ventilator Application with V5852/53 and V5862/63 Valves ........................................................ 100

Contents-


MOD IV ACTUATORSFOR COMMERCIAL

GLOBE VALVES

PNEUMATIC VALVESAND ACTUATORS

V5852/53 ANDV5862/63 UNITARY

VALVES ANDACTUATORS


- Page 7

T

YPES

OF

V

ALVES

GATE AND CARTRIDGE TYPE VALVES

GLOBE

BUTTERFLY

BALL

Control valves are initially classifiedby their place of use into residential,commercial or industrial. Thedifference being not only pipe sizeand pressure ratings but also the typeof actuator and complexity of thecontrol circuit required. Industrialvalves frequently are equipped withpneumatic actuators while residentialunits are virtually all supplied withelectric. Ball and gate-type valvesare available primarily in smallerpipe sizes while butterfly valves aretypically applied only on the largestpipes. Globe valves are the mostwidely used type with a wideavailability in virtually all thecommercial and residential pipe sizesand adaptability to most actuators.

A further classification is the methodof attaching the valve to the pipe.Threaded valves are available from1/2 to 6 inches (1.3 to 15.2 cm) thoughmost of them larger than 3 inches(7.6 cm) are flanged. The smaller unitsare generally designed to be usedwith the copper piping used inresidences and small commercialbuildings. These can either besoldered, sometimes referrred to assweat, or flare which is a method ofattaching to a copper or steel pipeby turning a nut that tightens anenlarged section of pipe around thevalve body. Each method is rated fora certain amount of loop pressureand weight support. The type ofvalve connection method should beindicated in the mechanicalspecifications.

63-7

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alve

s an

d A

ctua

tors

- Pa

ge 8

The conventional method to control acommercial damper or valve withelectric or electronic actuators has beento use a three-piece assembly:

1. Actuator2. Linkage3. Valve or damper

Today there is a new type of actuatorthat is compact, economical and inmany applications requires nolinkages. Savings in both installationlabor and material costs are realized.

Actuators are devices that are used totake a control signal and reposition afinal control element such as a valve ordamper. This causes an increase ordecrease in the volume of air, steam, hotor chilled water. The actuator is seldoman integral component of the valve ordamper. Instead actuators with varioustypes of power supplies and controlinputs are available. This results ingreater flexibility for the installer andreduced inventory requirements for thebuilding owner.

Actuators are used in virtually everyaspect of heating, ventilating and airconditioning (HVAC). Many of themare shown in the illustration on the nextpage “Direct Coupled Actuator Usage

in a 5 Story Building.”

An airhandler frequently requiresmultiple actuators. Though a smallerunit can be controlled with a singleactuator that is linked to both the returnand outside air dampers, larger,centralized airhandlers might requireten or more actuators just for theoutside air. Multiple damper sectionscan be joined together, connected to ajackshaft and controlled with a singlelarge actuator.

Heating and cooling coils are virtuallyalways equipped with control valves.Some coils are sufficiently large torequire multiple valves which aresequenced according to outside orsupply air temperature. Changeoverfrom heating to cooling or from oneboiler or chiller to a backup unittypically requires large two-positionvalves. Butterfly valves are frequentlyused for this function.

Most office building HVAC equipmenttoday is based on variable air volume(VAV). Modulation of the volume of airfrom the supply and return fans isrequired and there are many methods inuse. Illustrated on the next page is a

widely used method; inlet vanedampers on the supply fan. This isfrequently a medium to high torqueapplication. In a typical application theairhandler should not be started untilthe inlet vanes are full closed. This isdone to prevent damage to the ductscaused by a excessive static pressure.This requires either an inlet vaneactuator that is spring returned to aclosed position or an electrical interlockcircuit that prevents fan start-up till thevanes are closed.

The VAV boxes located throughout thebuilding might require multipleactuators on each; one for the volumedamper and one for the reheat coil.Dual duct VAV boxes could require twovolume damper actuators each.

Other applications for actuators includevalves for make-up water on coolingtowers, diverting valves for condensorwater lines, modulation of dampers onsmaller cooling towers, pressureregulating valves for primary-secondaryhydronic loops or control valves onsteam-to-hot water converters.

A

PPLICATION

OF

V

ALVE

AND

D

AMPER

A

CTUATORS

63-7

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COOLINGTOWER

PUMP

CONDENSERWATER LOOP

CONDENSERPUMP

CEILINGDIFFUSERS

VARIABLE AIRVOLUME BOXES

CEILING DIFFUSERS

PLENUMRETURN

BOILER 200Deg. F (93 C)

O.A. DUCT

SUPPLY DUCT

EVAPORATOR

CONDENSOR

55 Deg. F (13 C)

RETURNCHILLED WATER

45 Deg. F(7 C)

CHILLEDWATER

80 Deg. F (27 C)

TOWER SUPPLY

MIXED AIRSECTION

OUTSIDEAIR

DUCT

SUPPLYFAN WITH

INLETVANES

FILTER

FILTER

COOLINGCOIL

HEATINGCOIL

CHILLER

PLENUMRETURN

SUPPLY FANWITH INLET

VANESCONTROL VALVES

CONTROL VALVES

HOT WATERLOOP 160 Deg. F (71 C)

RETURN WATER

HOTWATERPUMP

DAMPERS

CEILINGDIFFUSERS

PERIMETERREHEAT

CEILINGDIFFUSERS



DAMPER DCA

INLETVANEDCA

INLETVANEDCA

VALVEDCA

DAMPERDCA

VALVE DCA

HEATING ANDCOOLING COILS

SUPPLYDUCT

90 Deg. F (32 C) CONDENSOR WATER

DAMPER ANDVALVE DCA

SUMP

DAMPERDCA

DAMPERDCA

DAMPER AND VALVE ACTUATOR USAGE IN A 5 STORY BUILDING


- Page 10

C

OMPONENTS

OF

A

V

ALVE

Packing is used to preventwater or steam from leakingout around the stem. It can bemade of teflon wafers or arubber cartridge. The packingon this valve consists ofseveral wafers. At one timepacking was made of a ropecovered with graphite. Thepacking nut had to be tightenedevery so often to reduceleakage. Newer designscommonly used on ball valvesare 0-rings made with moderncompounds which substantiallyreduces or eliminatesrepacking.

The term valve trim refers toall of the components of thevalve except the valve bodyitself that are in contact withthe fluid being controlled. Inspecifications the trim mightrequired to be of a specialmaterial such as stainless steelto withstand high temperaturesor corrosive substances.

On larger valves the seat isthreaded into the valve body. Ifreplacement is required it canbe removed with a deep socketand replaced. On most of thesmaller and soldered valves theseat is molded into the valvebody and is not replaceable. Itcan still be serviced byscraping or grinding scaledeposits.

DISC

PLUG

STEM

SPRINGDISC

VALVEBODY

FOLLOWERSPRING

RETAINER

PACKINGWAFERS

PACKINGNUT

BONNET

STEMBUTTON

STEM

DISCHOLDER

ASSEMBLY

VALVESEAT

LOCKINGSETSCREW

PORT-OPENINGIN SEAT


- Page 11

V

ALVE

P

RESSURE

R

ATINGS

CLOSE-OFFTHIS IS THE MAXIMUMD I F F E R E N T I A LPRESSURE AT WHICH AVALVE CAN BE CLOSEDWITHOUT SUBSTANTIALLEAK THROUGH. THIS ISDEPENDENT UPON THETYPE OF ACTUATORUSED AND THE Cv OFTHE VALVE. HIGHER CvVALVES GENERALLYHAVE LARGER PORTOPENINGS AND LARGERDISCS AND REQUIRE ALARGER ACTUATOR FORTIGHT CLOSE-OFF. IT ISFREQUENTLY GIVEN IN ACHART WITH SEPARATELINES FOR Cv AND

BODY RATING NOMINALTHIS IS TYPICALLY IN PSI ANDCAST ONTO THE VALVE BODY.ITS PRIMARY USE IS TO DERIVEAN OVERALL RATING FOR ALL

OF THE PIPING IN THEBUILDING. IT DOES NOT

INCLUDE THE LIMITATIONS OFTHE REMAINDER OF

COMPONENTS.

MAXIMUM DIFFERENTIAL PRESSURE ISTHE GREATEST ALLOWABLE PRESSUREDIFFERENCE BETWEEN THE INLET ANDOUTLET PRESSURES. EXCEEDING THISRATING CAN CAUSE INADEQUATE CLOSE-OFF OR DAMAGE TO THE PLUG, DISC ANDSTEM.

PRESSURE DROP IS ALSO THE DIFFERENCEBETWEEN THE INLET AND OUTLET PORT;THIS TERM IS TYPICALLY USED WHEN SIZINGT H E VA LV E F O R M O D U L AT I N GAPPLICATIONS. USUALLY SPECIFIED BY THEPIPING LAYOUT ENGINEER, COMMONVALUES ARE BETWEEN 2 AND 6 PSI (14 AND 41kPa)

BODY RATING ACTUALTHIS TAKES INTO ACCOUNTTHE APPLICATION SUCH ASFLUID TEMPERATURE ANDFLOW. IT IS DERIVED FROMA CHART. ONCE AGAIN THISDOES NOT INCLUDE THELIMITATIONS OF THEREMAINDER OF VALVECOMPONENTS.

MAXIMUM PRESSUREAND TEMPERATURETHIS TAKES INTOACCOUNT THE ENTIREVALVE ASSEMBLYINCLUDING THE BODY,S T E M , D I S C A N DPACKING. THIS WILL BEEQUAL TO OR LOWERT H A N T H E B O D YRATING.

ACTUATORS USED. THREE-WAY VALVES WILL FREQUENTLYBE LISTED WITH TWO CLOSE-OFF RATINGS, ONE FOR EACHSEAT.

C1745-2

SPRING RANGE PSI (kPa)

V5011H&J — 1/2 THROUGH 1-1/4 IN. R.A. SCREWED BODIESWITH 7 IN. R.A. PNEUMATIC ACTUATOR (NORMALLY OPEN)

4-11

(30-

75)

3-7

(20-

50)

8-13

(55-

90)

7(50)

14(95)

17(120)

18 (125)

15(105)

16(110)

17(120)

18(125)

12(85)

13(90)

14(95)

5(35)

15(105)

25(170)

35(240)

45(310)

55(380)

65(450)

0(0)

10(70)

20(140)

30(205)

40(275)

50(345)

60(415)

70(480)

CLOSEOFF PRESSURE RATINGS PSI (kPa)

AIR

PR

ES

SU

RE

IN A

CT

UAT

OR

PS

I (kP

a)

16(110)

12(85)

13(90)

15(105)

11(75)

14 (95)

10(70)

9(60)

8(55)

13 (90)

12 (85)

11(75)

Cv = 6.3, 10.0

Cv = 2.5, 4.0

USE 8-13 PSI (55-90 kPa) RANGE FOR DETERMINING CLOSEOFF OF VALVES USEDWITH MP953F ACTUATORS.

Cv = 16.0


- Page 12

S

TEM

L

IFT

Valves are available as unitary orassembled units. The difference is that aunitary valve is designed to be used witha specific actuator. Unitary valves aretypically smaller valves. An assembledunit consists of one of Honeywell’sthreaded or flanged valves and one of awide selection of actuators. The actuatorcan be electric or pneumatic, spring returnor non-spring return or one of any of theavailable close-off ratings.

When selecting an actuator for anassembled unit there are some criteria thathave to be met. The stem diameter andlift both generally increase as the pipe sizeof the valve increases. Actuators areavailable with various stem lifts to meetthese requirements. Lift on commercialglobe valves such as those illustrated aboveare typically 3/4 inch (19 mm) on thosevalves 3 inch (76 mm) or less pipe size and1.5 inch (38 mm) on 4 to 6 inch (102 to 152

mm) valves.

FULL UPFULL DOWNSTEM LIFT

SERVICE NOTE: The stem lift can beadjusted slightly by threading the stem buttomupwards or downwards. It is then locked inposition with a setscrew that is installed fromthe top. If the stem button is not adjustedcorrectly the rated close-off or Cv might notbe attained with some of the actuators. Onsome valves it is adjusted with the stem fullup and some with the stem full downwards.When installing an actuator on this type ofvalve be certain to measure the dimensionindicated and compare to what isrecommended in the literature.

STEM FULL UPOR FULL DOWN

SETSCREWRULER

THISDISTANCEISSPECIFIEDIN THESERVICEDATA

INSTALLSTEM

BUTTON,ADJUST,

TIGHTENSETSCREW


- Page 13

D

ISC

, S

TEM

AND

P

LUG

A

SSEMBLIES

STEM

DISCSPRING

PLUG

PLUG

DISC- PORTIONOF PLUGASSEMBLY THATCOMES INTODIRECTCONTACT WITHTHE SEAT.

VALVE BODY

SEAT- THIS IS NOT PROVIDED WITHEITHER THE REBUILD OR REPACK KITSAND MUST BE ORDERED SEPARATELY.THE PART NUMBER OF THE ENTIREVALVE IS NECESSARY TO ORDER A SEAT.

SEAT ISTHREADED

INTO VALVEHERE

DISC HOLDERCOMPONENTSASSEMBLED

This is the configurationof a V5011 type ofHoneywell valve. This isa 1 inch (25 mm) valve andthe seat is removed witha deep thinwall 6 pointsocket wrench. On someof the stem-down-to-openvalves the diameter of theseat exceeds that of thebonnet and a specialHoneywell wrench isrequired that is insertedthrough the opening of thepipe. It is important toobtain the correct seatsince there is more thanone size for each valve.Installing the wrong onecan alter the Cv of thevalve.

DISCHOLDER

ASSEMBLY

DISC

STEM, PACKINGNUT, BONNET

AND PLUG


- Page 14

V

ALVE

P

LUGS

PLUGASSEMBLYWITH DISC

PLUGASSEMBLY

WITHGUIDES

3-WAYVALVEWITHDUALSEATS

The plug of the valve is attachedto the stem and is used to openor close the port in the seat. Theone illustrated on top is mostoften used on the smaller valvessince there are no guides or skirtsattached to the plug assembly.The stem must be sufficient toovercome side-to-side forces.

The plug illustrated in the middleis equipped with guides or skirtsto maintain plug alignment as itis raised or lowered. Theseguides are necessary on largervalves since the stem is longerand might be bent or pushedagainst the packing withexcessive force.

Both of the top two plugs on thispage are constructed with discsthat are used to make a tight sealwith the seat to prevent leakthrough. Twenty years ago theseseats were made of a fibermater ia l re ferred to ascomposition, a rubber materialfor chilled water or metal fortight close-off with steam. Thenthe discs were changed to bemade primarily of teflon ormetal.

The three-way valve plugillustrated on the bottom is madewithout discs. Two seatingsurfaces are built into the plugassembly.

DISC

PLUG

DISCHOLDER

ASSEMBLY

STEM

PLUGASSEMBLY

PLUGGUIDES OR

SKIRTS

SEATTHREADED

INTOVALVEBODY

DISC ORMETAL

SEATINGSURFACE

STEM

PLUGASSEMBLY

PLUGGUIDES OR

SKIRTS

UPPER SEATTHREADED

INTO VALVEBODY

METALSEATING

SURFACESLOWERSEAT


- Page 15

L

INEAR

AND

E

QUAL

P

ERCENTAGE

P

LUGS

STEM LIFT0% 20% 50% 100%

50%

100%

FLO

W

10%

90%

STEM LIFT0% 20% 50% 100%

50%

100%F

LOW

& H

EA

T o

r CO

OL

OU

TP

UT

STEM LIFT0% 20% 50% 100%

50%

100%

HE

AT

OU

TP

UT

There are two primary types of plugs for globevalves. The one with straight sides is referred toas a linear plug and is used for modulating steamor chilled water. The other with the sloping sidesis referred to as an equal percentage plug and isdesigned for modulation of hot water or two-position control of steam. It is equal percentagebecause each percentage of stem lift results in anequal percentage increase in heat output.

Some of the larger valves use a plug with guidesor skirts on the side to keep it aligned with theseat as the valve is opened and closed. The shapeof the sides of the plug and the guides make theplug linear or equal percentage and it is not visiblyapparent which type it is.

LINEAR PLUG

EQUALPERCENTAGEPLUG

LOCATIONOF PLUGWITHIN

VALVE

DISC

PLUG

DISCHOLDER

ASSEMBLY

DISC

PLUG

DISCHOLDER

ASSEMBLY


- Page 16

P

URPOSE

FOR

N

OT

U

SING

L

INEAR

P

LUGS

IN

H

OT

W

ATER

V

ALVES

An increase of the volume of steam beingput into a coil results in a proportionalincrease in the heat output of the coil. Thishappens because all of the steam shouldcondense in the coil and be returned to thecondensate return tank. Hot or chilled wateris different because the coil outlet watertemperature varies with the flow rate andthe amount of airflow over the coil. As theflow increases so does the velocity of thewater in the coil and the length of time itis in contact with the coil decreases. Eachvolume of water absorbs less heat as the

flow rate increases. What can occur if thevalve plug is not designed to take this intoaccount is illustrated above. Neither barchart is proportional. Changes in the coiloutlet temperature changes the heat outputdisproportionately.

An equal percentage plug is contoured sothat a 50% repositioning of the stem onlyraises the flow rate by 10%. This 10%increase in flow however causes a 50%increase in heat output.

VALVE OPENTO 10%VOLUME

VALVE OPENTO 40%VOLUME

INLET WATERTEMPERATURE180 DEG. F (82 C)

OUTLET WATERTEMPERATURE100 DEG. F (38 C)

OUTLET WATERTEMPERATURE125 DEG. F (52 C)

HEATOUTPUT77,920 BTUH(23 kWH)

HEATOUTPUT214,280 BTUH(63 kWH)

VALVE WITH LINEARPLUG INCORRECTLYAPPLIED ON A HOTWATER COIL.

INLET WATERTEMPERATURE180 DEG. F (82 C)

COILFLOW10% ofRATED

COILFLOW40% ofRATED

COILHEAT

OUTPUT20% ofRATED

COILHEAT

OUTPUT55% ofRATED

8 GPM(.50 L-S)2 GPM

(.13 L-S)

77,920BTUH

(23kWH)

214,280BTUH

(63kWH)

COIL RATINGS:20 GPM (1.3 L-S) MAXIMUM FLOW40 DEG. F. (22 C) TEMPERATURE DIFFERENCE390,000 BTUH (114 KWH) HEAT OUPUT


- Page 17

M

ODIFIED

P

LUGS

QUICK OPENING PLUG

MODIFIED LINEAR

DISC IS JUST A FLAT PIECE. THERE ISFULL FLOW ALMOST IMMEDIATELYAFTER OPENING.

In the Honeywell Valve Selection Guide63-8038 valves are listed with the optionsavailable for each. Some of them arelisted with a plug referred to as amodified linear. This is a plug that isprimarily linear for approximately 90%of the stem lift. 10% is curved similar toan equal percentage plug to improvemodulation at low flow rates. Most valvesusing this plug are metal-to-metal seatingand are primarily for steam modulation.

Double seated or pressure balancedvalves are used where fluid pressuresare too high to permit a single seatedvalve to close. They do not provide tightshut-off and are more costly than singleseated valves.

Quick-opening plugs are for two-positionapplications. The plug is designed to seattightly and open completely within thefirst portion of stem lift.

DOUBLESEATED


- Page 18

S

TEM

-D

OWN

-

TO

-O

PEN

AND

S

TEM

-D

OWN

-

TO

-C

LOSE VALVES

The flow of liquids or steam through avalve port and the intrinsic changes ofdirection produce many hydraulic forcesthat can push a plug off the seat or the stemfrom side to side. At its worst these forcescan cause chattering which is a rapid andcyclical opening and closing of the valvewhen it is in a low flow position. Rapidclosing of a valve can cause a hydraulicramming of the pipe referred to as wateror steam hammer. This results from asudden rush of fluid against a stationaryobject. An audible manifestation of thiscan be a knocking noise that reverberatesthroughout the entire building. Damage tostrainers, coils, pipe connections, supportsand steam traps can also result from wateror steam hammer.

The designer of mechanical equipmentattempts to use a consistent flow of fluidat the correct pressure drops to minimizenoise and damage. A valve for a coil on anairhandler or converter is frequentlyspecified as stem-down-to-close or stem-down-to-open to meet the designer’srequirements. While it is feasible to matchthe same control output with a differentvalve and actuator assembly there can beunintended results if the position of thestem is not kept in mind. Honeywellproduces valves in virtually anyconfiguration required for commercialapplications. It is important for the personselecting retrofit valves to ensureconsistency with the previously installedequipment.

STEM-DOWN-TO-CLOSE or DIRECT STEM-DOWN-TO-OPEN or REVERSE

SEAT

DISK

PLUG

SEAT

DISK

PLUG

63-7035 Honeywell Valves and Actuators - Page 19

NORMALLY OPEN AND NORMALLY CLOSED VALVE ASSEMBLIES

Normally open and normally closed areterms that refer to the position of an actuatorand valve or actuator and damper assemblywhen the power is removed. Coils areprevented from freezing in an airhandlerif the coil has full flow through it duringthe off cycle. Similarly a reheat coil on avariable air volume box does not requirefreeze prevention and the actuator shouldbe closed if there is no airflow to preventtripping plenum heat detectors.

A valve by itself is seldom normally openor normally closed. It is the actuator andvalve assembly that provides thisfunctionality. Illustrated above is the samestem-down-to-close valve with twodifferent actuators installed. One assembly

will open when air pressure is removedand one will close. The use of a stem-down-to-open valve with the same twoactuators illustrated above would reversethe normal positions of both valveassemblies.

Electric actuators with spring return providesimilar benefits as the pneumatic. On someunits the direction of actuator spring returnmust be matched to the type of valve tohave the correct normal position on lossof power. There is also battery-powered orelectric return available for some non-spring return valve actuators. These aregenerally higher torque than spring return.The battery is recharged during the oncycle.

NORMALLY CLOSED VALVEASSEMBLY

NORMALLY OPEN VALVEASSEMBLY

DIAPHRAGMIS ON TOP

OF CUP

STEELCUP

SPRINGFORCE ISEXERTEDUPWARDSPULLINGSTEM UP

STEMBUTTON

VALVEPLUG

VALVE PLUG

STEMBUTTON

STEMSEAL

STEEL CUPDIAPHRAGMBENEATHCUP

SPRINGFORCE ISEXERTEDDOWNPUSHINGSTEMDOWN


VALVE ASSEMBLIES AND CLOSE-OFF RATINGS

DIAPHRAGMIS ON TOPOF CUP

STEELCUP

SPRINGFORCE ISEXERTEDUPWARDSPULLINGSTEM UP

VALVEPLUG

STEMBUTTON

STEMBUTTON

STEMSEAL

STEEL CUP

VALVEPLUG

DIAPHRAGMBENEATHCUP

NORMALLY OPEN VALVEASSEMBLY

NORMALLY CLOSED VALVEASSEMBLY

SPRINGFORCE ISEXERTEDDOWNPUSHINGSTEMDOWN

These are the same two actuators as on theprevious page. The valve however is stem-down-to-open which reverses the normalposition of the two assemblies.

Generally the close-off rating will be higheron the assemblies using the stem-down-to-close valves on the previous page. Of thosetwo the normally open unit would be ratedhigher than the normally closed.

The difference in close-off is due to theforce of the water or steam flow pushingthe plug off the seat on both of the assemblieson this page. The force of the water flow

has the opposite effect on the valves withstem-down-to-close.

Additionally the valves with the force ofthe actuator closing the valve will have ahigher close-off rating than the ones closedwith the spring. This would be the normallyopen units on both pages. This is due to therequirement of most actuators that the forceof the actuator has to overcome that of thespring to be able to provide modulation.This does not apply to some of the newerelectric actuators since the spring return isfully wound and locked during modulationand is not opposed by the motor.


STEAM-TO-HOT WATER CONVERTER

HOTWATERSUPPLY

NORMALLYCLOSEDVALVEASSEMBLY

PUMP

HOTWATERSENSOR

COILS INAIRHANDLERSFAN COILS,ECT.

OUTSIDEAIRSENSORwithSUNSHIELD

HOTWATERRETURN

Most modern buildings are heated with hotwater boilers. Facilities constructed priorto 1940 were probably heated with steam.Additions to these buildings are typicallyhot water heat due to its controllability,safety and maintenenace benefits. The useof a steam-to-hot-water converter permitsretaining the steam boiler while heatingnew areas of the building with hot water.Other facilities such as hospitals andindustrial facilities often require the

availability of steam for humidification andother applications.

The valve on a converter is typicallynormally closed to prevent boiling of thewater when the pump is turned off. A linearplug should be used on the valve to preventexcessive cycling. Except for the valve thecontrol devices are identical to those forhot water reset with a three-way mixingvalve.

HOTWATERTEMP

OUTSIDEAIR

TEMP100 F(38 C)

70 F(21 C)

180 F(82 C)

0 F(-18 C)

A

C

B

DRESET SCHEDULE

DIRECT DIGITALRESET

CONTROLLERWITH 0 TO 10 VDC

OUTPUT

STEAM-TO-HOTWATER

CONVERTER

STEAMTRAP

STEAMSUPPLY


THREE-WAY VALVES

Three-way valves are primarily used forwater applications and infrequently to switchcompressed air. It is typically open to oneport or the other. There are smaller three-way valves which sequence ports and can beclosed or open to both ports simultaneously.Most of the larger valves though, are of thetype illustrated here and would be labelled"Normally Open A to AB", or "NormallyOpen AB to B."

A diverting valve is also a three-way valve.Typically used to bypass a coil and/or reducewater pressure in a hydronic loop. They arefrequently applied on a cooling tower toeither send water to the cooling tower or tothe bypass line.

There is constant flow in gallons per minute(liters per second) through three-way valves.

This facilitates the design of the pipingequipment for a building since the pumppressures and the loop pressure drops willremain virtually constant. The cost ofpumping the water throughout the buildingremains constant also.

Using a two-way valve on a coil causes theloop pressures to change as it is closed. If asufficient number of two-way valves in abuilding are simultaneously closed thepressures on the pump can become excessive.This can cause opening of safety valves andhigh water pressures that push valve plugsoff the seats. A solution is to install pumpspeed controls that reduce loop pressure whenneeded. Since this results in a reduction inpumping costs it is frequently being used inmodern buildings and three-way valves arebeing used less often.

HOTWATERRETURN

HOTWATERSUPPLY

AB

B

A

MIXING

N.O.A to AB

HOTWATERRETURN

HOTWATERSUPPLY B

AAB

N.O.AB to A

DIVERTING

COIL COIL


THREE-WAY MIXING VALVE COMPONENTS

Mixing valves are used to take two input flowsof water and mix them into the outlet port. Theyare used on coils in airhandlers, hot water loopswith a boiler and reheat coils. The larger thepipe size the more probable the valve will beconstructed with a guides on the plug similarto the one illustrated above. The guides preventthe plug from being pushed from side to sideby the force of the water.

BOTTOMSEAT

BONNET

STEMBUTTON

VALVESTEM

VALVEADAPTER

SIDEINLET

SIDEOUTLET

BOTTOMINLET

PLUGGUIDES

VALVEOPEN TOBOTTOMPORT

VALVEOPENTOSIDEPORT

PLUGASSEMBLY

TOP SEAT


THREE-WAY MIXING HOT WATER RESET APPLICATION

HOTWATER

SUPPLY

AB

B

A

3-WAYMIXING

VALVE

PUMP

HOTWATERSENSOR

BOILERCONSTANTWATER TEMP.200 DEG. F.(93 C)

COIL

OUTSIDEAIRSENSORwithSUNSHIELD

PHOTO COURTESY OFCLEVER BROOKS

HOT WATERRETURN

The water used to heat a building is typicallysupplied from either a boiler or a steam-to-hot water converter. The buildingillustrated here is heated from a boiler. Thetemperature of the water should be variedinversely with the outdoor air temperature.This is referred to as hot water reset and itreduces overheating during moderateweather. The required temperatures arelisted in the reset schedule.

Most boilers though should have a constanttemperature water within them to preventthermal stratification and warping of themetal. A three-way mixing valve can beused to vary the loop temperature whilekeeping the boiler temperature constant.The valve can also be used during a coldstart to prevent potentially damaging largeflows of cold return water through the boiler.

HOTWATERTEMP

OUTSIDEAIR

TEMP100 F(38 C)

70 F(21 C)

180 F(82 C)

0 F(-18 C)

A

C

B

DRESET SCHEDULE

DIRECT DIGITALRESET CONTROLLER

WITH 0 TO 10 VDCOUTPUT


DIVERTING VALVE COMPONENTS

BOTTOM OUTLET

STATIONARYGUIDE CAGE

BOTTOM PLUG

TOP PLUG

STEM BUTTON

VALVE STEM

VALVEBONNET

PACKINGNUT

INLETPORT

SIDEOUTLET

Diverting valves are used to take a singleinput flow of water and divert it to eitherof two ports. Some of the smaller valvescan be piped backward to become amixing valve. The larger valve illustratedabove though cannot be pipedbackwards without incurring damage

or water hammer. This is because of thecomplexity of the cage that contains theplugs. The opposing plugs providecounter-balancing pressures on the valvestem which substantially reducesslamming of the disk against the seat atlow flow rates.

BOTTOM OUTLET

V4044

VC SERIES

VB30B

SMALLER THREE-WAY DIVERTING VALVES

LARGE THREE-WAY FLANGEDDIVERTINGVALVES


COOLING TOWER APPLICATION OF DIVERTING VALVE

Chillers are used to generate chilled waterto cool a building. While some of these arepaired with air cooled condensors most ofthe larger units are connected to coolingtowers. Cooling towers are used to dissipatethe heat taken from inside of the building tothe outdoors. A valve is generally requiredto control the temperature of the condensorwater being returned to the chiller.

A sensor is installed on the return condensorwater line and it is used with the controllerto modulate the three way diverting valve.If the condensor water is below 70 Deg. F.(21 C) the valve is opened AB to B and it is

sent back to the chiller without being cooledin the tower. This is done to prevent oil andrefrigeration migration within the chiller. Asthe chiller capacity is increased and thecondensor water temperature increases above70 Deg. F. (21 C) the diverting valve ismodulated towards opening AB to A.

A separate control loop is used to modulatethe amount of cooling done within the coolingtower. The water is controlled to a typicalsetpoint of 75 Deg. F. (24 C) by turning thetower fans on and off, controlling the fanspeed or modulating dampers on the sides.

3-WAYDIVERTINGVALVE. 1 INLET,2 OUTLETS

COOLING TOWER

CONDENSERPUMP

AIR

AIR

AB A

B

TOCONDENSORON CHILLER

FROMCONDENSORON CHILLER

ML7425 SPRINGRETURN VALVEACTUATOR

SENSOR

CONTROLLER


BUTTERFLY VALVES

BUTTERFLY VALVEWITH ACTUATOR

COOLING TOWERPUMP

AIRAIR

TOCONDENSORON CHILLER

FROM CONDENSORON CHILLER

Butterfly valves are applied on gases andliquids. They are used in conjunction withsafety shut-off valves on natural gas burnersto modulate the capacity of the boiler.Generally this type of valve does not providea tight close-off unless the valve body isconstructed with special seals. They are usedcommercially primarily on larger pipe sizesto provide modulation or two-position controlof water. The type of actuator varies with thetorque requirements. Multiple damper actuatorscan used on a single larger valve. Standardelectric or pneumatic actuators are availablefor smaller valve sizes.

LINKAGE

BUTTERFLYVALVEWITHOUTACTUATOR

Few mixing or diverting three-way valves areavailable commercially in larger pipe sizes. Toprovide two-position or modulation control twobutterfly valves can be used. In this illustrationthere is only one actuator and the second valve iscontrolled with a linkage connected to the first.Two actuators without connecting linkage can alsobe used if the actuators can be made to modulatein unison.

LINKAGE

PNEUMATICDAMPERACTUATOR ONBUTTERFLYVALVE

SENSORCONTROLLER


BUTTERFLY VALVES ON A TOWER COOLING APPLICATION

BUTTERFLYVALVEWITH

ACTUATOR

COOLING TOWER

CONDENSORPUMP

Heat exchangers can be used to cool a buildingusing only the cooling tower. If the outsideair humidity is sufficiently low the chiller canbe turned off and just the tower fans andpumps energized. There is a substantialamount of rerouting of water flow requiredon typically larger pipe sizes so butterfly

valves are frequently used. All of themillustrated on this page are configured as three-way diverting valves. The control sequenceis frequently complex due to the requirementof measuring outdoor humidity so typicallydirect digital controls will be used for thiscontrol loop.

BUTTERFLYVALVE WITHOUT

ACTUATOR

OUTSIDEAIR WETBULBSENSOR

DIRECT DIGITAL CONTROLLER

LINKAGE

CONDENSOR

EVAPORATOR

HEAT EXCHANGER TOCOOL CHILLED WATERWITH COOLING TOWER

CHILLED WATERPUMP

1

2

3

5

6

CHILLEDWATER

SUPPLYAND

RETURN

VALVES 1 AND 2CONTROLLED FROMCONDENSOR WATER

TEMPERATURE

CHILLER

4

MECHANICAL COOLING MODEVALVES 3 AND 5 OPEN4 AND 6 CLOSEDTOWER COOLING MODEVALVES 3 AND 5 CLOSED4 AND 6 OPEN


GATE AND CARTRIDGE TYPE VALVES

Gate valves are widely usedfor manual shut-off on largerpipe size applications andfor modulation of smallerwater volumes. The close-off rating is very high so thismakes them useful forstopping all flow to servicemechanical equipment.

A form of the gate valve usedfor temperature control isthis cartridge valve. They areavailable as two- or three-way valves. The three-wayvalve illustrated can be pipedwith port AB as an inlet oroutlet to make it either adiverting or mixing valve.The actuator is either two-position or floating series 60.

The replaceable cartridgeinc ludes a l l o f t hecomponents necessary torebuild the valve.

FULLPORT

GATE

BONNET

VALVESTEM

A B

AB

STEM IS PUSHEDUPWARDS WITH

SPRING BUILTINTO CARTRIDGE

REPLACEABLECARTRIDGEASSEMBLY

STEM ISPUSHED

DOWNWARDSWITH

ACTUATOR

FLOW ISTHROUGH

CENTER OFCARTRIDGE

MANUALGATEVALVE

CARTRIDGEVALVE

CARTRIDGEVALVESTEMDOWN

REPLACEMENTCARTRIDGE


V4043, V4044, V8043, V8044 TWO-POSITION VALVES

VALVE ANDACTUATORASSEMBLY

STEM THATISATTACHEDTOACTUATOR

LEVER

BALL

O RING

SEAT OUTLETPORT

DIRECTIONOF FLOW

MANUALOPENER ON ALLVALVES EXCEPT

TWO-WAYNORMALLY OPEN

UNITS.

A B

The V4043, V4044,V8043 and V8044 aretwo-position controlvalves used for hot waterand steam. They areavai lable threaded,soldered or flared. Exceptfor the straight throughnormally open valves allare equipped with amanual opener to provideflow in the event of apower fai lure. Forhydronic loops that areboth hot and chilledwater some of thesevalves are available withintegral changeoveraquas ta t s® wh i chautomatically reverse theopening of the valvedepend ing on thetemperature of the waterin the line. Some valvesare equipped wi thauxiliary switches tocontrol equipment suchas a pump.


VALVE REPACKING

REPACK KIT

PACKINGWATERS

PACKING NUT-NOT INCLUDEDIN ALL KITS

FOLLOWERSPRING

SPACERS

PACKINGLUBRICANT

PACKINGINSIDEVALVE

LEAKAGEANDSCALEFROMAROUNDSTEM

STEM LEAKAGE

CONTENTS OF REPACK KIT

There are two primary types of valveservicing procedures: repack and rebuild.A rebuild is a more complete procedureand includes the entire repack procedure.Repacking is done more frequently anddone equally as often on steam and hotwater. Rebuild is done more frequently onsteam valves.

The need for repacking is readily apparentdue to leakage of water or steam fromaround the valve stem. As the waterevaporates scale is typically left behind.The actuator and stem button must be

removed first. Then the packing nut isremoved and the packing wafers are takenout.

In the repack kit there is a diagram withthe correct number and location of thecomponents. There are many variations.Some wafers are installed with the openside up and others with the open side down.The number of wafers varies from valveto valve. Spacers are required on someunits. There are some valves for which thepacking is encased pre-assembled in a steelcup.

TYPICAL PACKINGCOMPONENTS

FOLLOWERSPRING

RETAINER

PACKINGWAFERS

PACKINGNUT


REBUILDING VALVES

BUTTON

PACKINGNUT

PACKING

FOLLOWER

FOLLOWERSPRING

BONNET

STEM ANDDISCHOLDERASSEMBLY

PACKINGLUBRICANT

DISCDISC SPRING

PLUG

SEATCONTENTSOF KIT

there is a special wrench removal tool availablefrom Honeywell which is inserted from thepipe opening on the side of the valve.

Not all rebuild kits include all of thecomponents illustrated above though thedevices for repacking are always included.For those valves for which it is available theseat is typically ordered separately. Mostservice personnel will always have a rebuildkit available prior to opening a valve forrepacking in the event more repairs are needed.

LEAKAGETHROUGHVALVE WHENIT IS CLOSED

VALVE LEAK THROUGH

A valve should not leaksubstantially when closed if itsrated close-off pressure is notexceeded. As the force of fluidthrough the port and around thedisc begins to wear on thecomponents there is a gradualincrease in leakage through thevalve when closed. This leakageis virtually always detrimentalsince it causes additional wear onthe seat and results in higherheating or cooling costs in manycases. If there are holes in thestrainers and corrosion in thepiping pieces of scale can bedeposited on the seat causingadditional leakage. In the earlydays of control maintenance valveseats were cleaned or ground toeliminate the effects of wear.

Today on most valves the seat isreplaced instead. It is typicallyremoved with a standard deep sixpoint socket. On some valves theseat is larger in diameter than thebonnet thereby eliminating theuse of a socket. For these valves

LEAKAGE CAN BEDETECTED BY THETEMPERATURE OF THEOUTLET PIPE OR BY THENOISE OF FLOW.


CV AND FLOW RATES THROUGH VALVE PORTS

Much of the calculations of sizing andselecting a control valve might be doneby the designer of the mechanicalequipment. The flow rate, normalposition of the assembly or pipe sizemight be listed on the mechanicalspecifications. Other designers mightleave it totally to the control companyand only specify a heating or coolingoutput given in BTUH or KWH.Honeywell provides information onvalve sizing in the Engineering Manualof Automatic Control for CommercialBuildings. An automated method is alsoavailable as software for desktoppersonal computers, Valve Sizing andSelection Software form number 63-8558.

Regardless of the method used there arecertain principles applicable to valvesizing. First, the pipe size is seldom anindication of the required flow throughthe valve. Heating or cooling coils thatvary in size by 200% might all beconnected to the same diameter pipe.Secondly, a valve that is a certain pipesize is typically available with manydifferent flow capacities or Cv’s.Selecting the highest Cv will result in

oversized valves in most applications.An oversized control valve frequentlywill result in inadequate modulation andaccelerated valve component wear. Thisis due to forcing the valve plug and diskinto a minimum flow position, perhaps10 or 20% of rated flow, for excessivelengths of time to compensate for theoversized port. A correctly sized valvewould be at the low flow position onlyduring moderate weather. Consistentlyforcing a plug to a near closed positionincreases the probability of seat erosiondue to the increased fluid velocity. Thisis referred to as wire drawing of a valveseat and is common on steam valves.

The preferred solution is to select andsize control valves based on the requiredflow or Cv. A Cv of 1.0 is equal to onegallon per minute with a one PSI pressuredrop through the valve. The metricequivalent is Kv represented by theformula Kv = 0.865 Cv. A valve with aCv of 10 is ten times larger in capacitythan that of a valve with a Cv of 1. Cvfor steam is based on steam quantity inpounds (kg) per hour, specific volumeand superheat of steam.

Cv CvQ Gh

(1 + 0.00075s)Q V

63.5 hQ = steam quantity in pounds per hourV = specific volume of steam in cubic

feet per poundh = pressure drop in PSIs = superheat in Deg. F

Q = flow in GPM gallons per minuteG = specific gravity of fluid, for water

is 1.0h = pressure drop in PSI, correction

factors available for glycol solutions

= =

Cv FOR WATER Cv FOR STEAM


PIPING AND FLUID MAINTENANCE

Selecting the correct Cv or port size fora control valve is only one componentof a correctly functioning installation.Whether new construction or retrofitthe installation of a control valve effectsthe fluid flow throughout the pipingloop. All of the cutting oils, greases andchemical compounds should beremoved after making any modificationto a heating or cooling loop. This isdone by adding a cleaning compoundto the lines and circulating the mixture,sometimes with the boiler at maximumheat, for a certain length of time. Theloop is drained, refilled and drainedagain. If the water appears clear then itis refilled and all air is removed.

Anticorrosion chemicals should beadded at the correct concentration atthis time. Omitting the cleaning of thelines or the addition of anticorrosionchemicals can coat the inside of thepipes, strainers and coils with a layerof insulation in the form of a greasyslime or corrosion. Studies indicate acoating as thin as 1/8 inch (.3 cm) canreduce output of some coils by 10 to20%. Many a control valve or coil hasbeen needlessly replaced when theactual cause of insufficient heating orcooling output was the reduction ofheat exchange efficiency due toinadequately cleaned or maintainedpiping.

% DECREASE IN HEAT OUTPUT

SCALE THICKNESS

4 %

3

2

1

1/64 1/32 3/64 1/16.397 .794 1.19 1.59

InchesMillimeters

EFFECT OF SCALE ON HEAT EXCHANGE SURFACES


CORROSION, WATER BALANCE AND CONTROL VALVES

The flow rate in gpm, pressure dropand normal position of the valveassembly are typically specified by themechanical designer. Every length ofpipe, manual or balancing valve,automatic valve, coil and pumpconnection is taken into account todesign the piping loop and calculatethe pressure drops. A factor is added tothe calculations to account for unknowninstallation requirements and thegradual degradation of the piping overyears of usage since most heating andcooling equipment is rated for 40 years.

Since the combination of oxygen andwater is one of the most corrosivesubstances on earth many buildings canbe subjected to flow degradation inexcess of acceptable limits in a fewyears. This changes the velocity of thewater flow through the pipes. It can becompared to a river when the width isnarrowed and the velocity of the water

is increased. If the distance betweenthe banks is widened the velocity slows.Obstructions in the piping due to slime,corrosion, scale or broken componentscan narrow the pipe diameter raisingthe velocity. The result is noise,vibration, water hammer, valve damageand decreased controllability of fluidflows.

The solution is maintaining chemicalsin the loop and having fluid flowschecked on a regular basis by aprofessional water balance technicianwith records kept of all results.

Glycol usage as a freeze avoidancemeasure is a factor in valvemaintenance. Concentration andcorrosion inhibitor levels must bechecked on a regular basis. Excessglycol levels can cause valve stem andpump seal leakage. All components ofthe piping must be rated for glycol.

Fe2 O3

CORROSION

THE IRON IN THE PIPECOMBINES WITH FREE

OXYGEN IN THEWATER TO FORM

RUST.

ANTICORROSION CHEMICALS AREADDED TO HEATING OR COOLING

PIPING LOOPS TO BOND TO THEFREE OXYGEN IN THE WATERTHEREBY PREVENTING RUST.



Most actuators can be classified by whatoccurs to them when power is removed.Non-spring return devices will remain at theposition they were in when the electricity orair pressure is removed. Spring returnactuators will automatically be driven fullyto one full position or the other. This istypically done on an airhandler to open theheating coil valve and close the cooling valvewhenever the fan is turned off. This preventsfreezing either coil during cold weather andunnecessary cooling, dehumidification andpump horsepower during warm weather. Thevalve assembly is referred to as beingnormally open or normally closed. Thenormal position is that which occurs whenpower is removed. This is frequently denotedon mechanical or control drawings by makingthe abbreviation “N.O.” or “N.C.” next tothe symbol for the control device.

A valve body by itself is typically not

normally closed or normally open. Only theinstallation of a spring return actuator givesthe damper or valve assembly a normalposition. Smaller unitary valves with integralactuators are an exception to this.

A wound spring is the typical method ofpositioning an actuator when the power isremoved. Generally spring return actuatorsare lower torque than non-spring returndevices. Honeywell 50 lb-in (6 N-m) actuatorsare equipped with a unique circuit that windsthe spring and locks it into position prior tostarting the actuator. The inactive spring isfully wound and available to provide springreturn at all times with no load on the actuatormotor. Pneumatic actuators are virtually allspring return. They are generally of a highertorque rating than electric units. The springreturn must be sufficient to close the valveagainst the pressure flowing inside the pipe.

N.C.N.O.

HEATING COIL COOLING COIL

NORMALLYCLOSED

NORMALLYOPEN

SPRING RETURN AND NON-SPRING RETURN ACTUATORS


40

60

70

80

90

SERIES TYPE

Line voltage. Two-positionspring return actuator

SPDT controller, somefloating. Reversible motors,some spring return

Electronic controllers andactuators

Low voltage. Two-positionspring return actuator

Modulating, low voltage.Potentiometer or electronicsimulation controller

Actuators should match the typeof thermostat or controller fromwhich they are controlled.Control circuits, especially directdigital, vary from product toproduct and from company tocompany. Some actuators aresupplied with electrical powerfrom a built-in transformer whileothers require a separate powersupply. All factors must be takeninto account when selecting aDCA for an application.

Honeywell has historicallyclassified control circuits intogroups and referred to them asSeries 40, 60, 70, 80 and 90.Knowing the series groupp r o v i d e s m u c h u s e f u linformation. In most Honeywellpart numbers the seriesdesignation is in the firstnumber. A ML9175 is Series 90and therefore is 135 ohm orelectronic 135 ohm simulationmodulation control. SLIDEWIRE AND BELLOWS

OR ELECTRONIC 135 OHM SIMULATION

2 TO 10 VDC, 4 TO 20 mAOR DIRECT DIGITAL

CONTROLLER

CONTROLLER TYPES

40and80

60

70

90

SPDT FLOATINGSPDT TWOPOSITION

SPSTTEMPERATURECONTROLLER

R

B

TYPES OF CONTROL CIRCUITS USED WITH DIRECT COUPLED ACTUATORS


TWO-POSITION AND MODULATION CONTROL MODES

TWO-POSITION CONTROL MODULATION

FULLCLOSED

FULLOPEN

FULLCLOSED

FULLOPEN

HALFOPEN

ROOM HOTTHERMOSTAT

SETPOINT

ROOM COLD

ROOM HOT

THERMOSTATSETPOINT

ROOM COLD

DIFFERENTIALGAPNO

INTERMEDIATEPOSITIONS



70 F(21 C)

68 F(20 C)

66 F(19 C)

CONTROLPOINT

HEATING VALVEPOSITION

CONTROLPOINT

HEATING VALVEPOSITION

The most fundamental of control categoriesis 2-position or modulation. This indicatesthat the final control element is either fullopen or full closed with no intermediatepositions. Most of these will use thermostatsor controllers with single-pole-single-throw(SPST) or single-pole-double-throw (SPDT)switching. While this may appear to be alimited form of control it is adequate formany slow changing environments such asa room thermostat controlling a baseboardelectric heater.

Series 40, 80 and sometimes Series 60 are 2-position.

Modulation, also referred to as proportional,

has many more output positions for theactuator other than just open or closed. Thetotal number of output positions is dependentupon the resolution of the control equipment.Typically the actuator is half open if theambient temperature or humidity matchesthe setpoint of the controller. Modulationis preferable for most applications since itis feasible to more closely match the outputof the controlled equipment with therequirements in the controlled area. Thisreduces cycling of the mechanicalequipment while providing bettertemperature control.

Series 70, 90 and sometimes Series 60 aremodulating.

70 F(21 C)

68 F(20 C)

66 F(19 C)


SERIES 40 AND 80 CONTROL

Series 40 and 80 are identical except forthe voltage of the control circuit. Series40 is line, typically 120 volts AC, whileSeries 80 is low, typically 24 volts AC.A controller with SPST switching, similarto a light switch, is used. The actuator isenergized and repositioned fully to itsother position. When the ambienttemperature, or control point, is attainedthe controller switch is opened, theactuator is de-energized and it is springreturned to its normal position.

Applications for this type of actuator are:

Two-position preheat valves on 100%outside air, or make-up, airhandlersthat are fully opened at a certain outsideair temperature.

Coil valves on airhandlers that are openedfully and the heat output is modulatedwith face and bypass dampers.

Seasonal changeover valves to switchwater flows in piping from heating tocooling.

BLACK RED

R

B

SERIES 40 OR80 SPST

TEMPERATURECONTROLLERSERIES 40

TO 120 VOLTPOWERSUPPLY

SERIES 80TO 24 VOLTSAC POWER

SUPPLY

ML8185 LOW VOLTAGEENERGIZE TO OPEN

DE-ENERGIZE TO CLOSE

ML4195 LINE VOLTAGEENERGIZE TO OPEN

DE-ENERGIZE TO CLOSE

BLACK

WHITE

GREEN

120 VOLTS ACTO OPEN


AUXILIARY SWITCH APPLICATION

This is an airhandler with 100% outside airusage. There is a glycol preheat coil that mustbe opened fully whenever the outside airtemperature is below 35 Deg. F. (2 C). This isaccomplished with the direct digital controller.Additionally as a freeze avoidance measure the

preheat coil must be fully opened prior tostarting the fan if the outside air temperature isbelow 35 Deg. F. (2 C). This is done with aT675 with its bulb in the outside air. Once thepreheat coil valve is opened fully during coldweather the reheat valve is then modulated.

GLYCOL PREHEAT COIL

DIRECT DIGITAL CONTROLLERWITH 2 TO 10 VDC AND SERIES

60 FLOATING OUTPUTS

REHEAT COIL

24 VAC TRANSFORMER

TERMINAL WIRECOLOR

SYMBOL FUNCTION

2-10 VDCPOSITION9 PINK U

2-10 VDC8 GREY Y

24 VACCOM2 BLACK GO

24 VAC1 RED G

11 Green/Red12 Green/Blue

14 Green/Pink

SWITCH A WIRING

SWITCH B WIRING

21 Black/Red

22 Black/Blue

24 Black/Pink

TERMINAL WIRECOLOR SYMBOL FUNCTION

COUNTER-CLOCKWISE7 ORANGE W

CLOCKWISE6 VIOLET B

24 VAC COM2 BLACK GO

24 VAC1 RED G

T675 O.A.AIR LOW

LIMIT SETAT 35 DEG.

F (2 C)

DUCTSENSOR

TOFAN

STARTCIRCUIT

RWNORMALLY

OPENNORMALLYOPEN

ML6295C ML7295A

21 AND 24CONTACTSCLOSE AT100% VALVEOPENPOSITION


SERIES 60 CONTROL

SPDT TWO POSITION SPDT FLOATING

BLACK RED

BLUE YELLOWOPEN CLOSE

SERIES 60 SPDTCONTROLLERS

FLOATING

2-POSITION

TO POWERSUPPLY

Series 60 uses a SPDT controller.There are two types of SPDT. Oneis referred to as 2-position with twoelectrical circuits. One of them isalways made which provides 2-position control.

The other type is SPDT floating. Itprovides Series 60 floating control.Similar to 2-position Series 60 thereare two separate control circuits.There is, however, an additionalposition in the center at which neithercircuit is made. This has the effectof stopping the actuator regardlessof its position. The actuator remainsthere till either of the two circuits,open or close, is made again. Longermotor timing, 3 or 7 minutes,frequently provides improved results.Floating control such as thisapproximates modulation.

Series 60 floating control actuatorscan be selected with (ML62xx) orwithout (ML61xx) feedback signal.Feedback models are selected if the

ML6185SPRINGRETURNSONREMOVALOF POWER

actuator output hub position orequipment (valve or damper) positionis important. Direct Digital Controlsystems use the feedback signal todisplay equipment posit ion.

Non-feedback models are selectedwhen:

1. The controller (T775, W973,T6984) is incapable of receivinga feedback signal

2. The position of the actuator isnot significant. This includesinlet vane control of VAVairhandlers and VAV boxdamper blade control

CWCOMCCW

ML6161NON-SPRING RETURN


SERIES 70 WITH DIRECT DIGITAL CONTROLLER

Series 70 devices use 0 to 10 voltsdc (Vdc), 2 to 10 Vdc or 4 to 20 milli-amp (mA) control circuits. Thesecontrol circuit voltages are veryprevalent today, making replacementof other company’s actuators withHoneywell devices economicallyfeasible. Series 70 is intrinsicallymodulating with actuator feedbackeither built into the signal voltage orfrom a feedback potentiometer. Bothactuators in this illustration aresupplied with 24 volts AC.

PITOTTUBE

DIRECTDIGITALCONTROLLER

VAV BOX withREHEAT

ROOMSENSOR

VALVE

DAMPER

COIL

COM2-10 VDC

2-10 VDCCOM

COM2-10 VDC COOLING

2-10 VDC REHEAT

TO PITOT TUBE

ML7161

ROOMTEMPERATURE

HEAT

COOL

77F (25C)

76F (24C)

75F (24C)

74F (23C)

73F (23C)

72F (22C)

71F (22C)

70F (21C)

69F (21C)

68F (20C)

The direct digital controller used in thispressure independent application can beconfigured with SPDT output relays. Theserelays can be used to control a Series 60 orSeries 60 floating actuator.

The reheat coil which is supplied through thevalve should be sequenced with the damper.When the room is warm the valve should befull closed and the damper should be full opento supply maximum cooling volume to thearea. As the room temperature drops thedamper should be modulated closed. Whenthe temperature is at the setpoint desired forthe area the damper should be at a minimumposition sufficient for ventilation purposes. Ifthe temperature drops below setpoint thedamper should remain at minimum and theheating valve should be modulated towardthe open position.

SETPOINT

MINIMUMPOSITION

FORVENTILATION


Series 90 has long been a Honeywellstandard and controllers and thermostatswith this circuit are still being produced.Initially it consisted of a three wirepotentiometer with a slidewire. Theslidewire is connected to a bellows whichexpands or contracts as the temperatureor humidity changes. (Note illustrationon page 38.) This repositions theslidewire, changes the potentiometerresistance and opens or closes the actuatorproportionally. Many control circuits indevices made by Honeywell and othercompanies electronically simulate theSeries 90 potentiometer. HoneywellSeries 90 direct coupled actuators can beused with either 135 ohm or electronicSeries 90 control input signals.

This application is a heating coil in anairhandler that is being modulated froma room thermostat through a supply airlow limit. The inlet air flow to the heatingcoil comes either from a mixed air sectionor a 100% outdoor air intake. Thefunction of the low limit is to prevent thesupply air to the conditioned area fromever falling below its setpoint of 60 Deg.F (16 C). The room might be kept at warmby the lights or the number of peopleadjacent to the thermostat causing theheating valve to be closed. On a cold daythe temperature of the air being suppliedfrom the coil might cause cold drafts inthe room. A supply air low limit preventsthis by opening the heating valve whenneeded regardless of the roomtemperature.

M9185 SPRING RETURNACTUATOR

T921A SERIES90 ROOM

THERMOSTAT

T991 SUPPLYAIR LOW

LIMIT SET AT60 DEG. F (16 C)

W

R

B

B

R

W BLACK

YELLOW

REDBLUE

TRANSFORMER

HEATING COILFROMMIXED

AIRSECTIONOR 100%

OUTSIDEAIR

INTAKE

SERIES 90 CONTROL


63-7035 Honeywell Commercial Valves - Page 46

Valve Series Group

Page No.

Configuration Application Plug Type Connections

Pipe Size Inch (mm)

Stem Lift Inch (mm)

Actuator

Globe Valves

V5011 A, B, F, H, G, J

11, 78

Two Way GlobeAll Except B Stem Up

to Open

Hot, Chilled Water, Glycol, Steam

A,B,F,H are Equal Percentage. G and J are Linear

Threaded and Flanged

1/2 to 6 (13 to 150)

3/4 and 1.5 (19 and 38)

ML64/74 SeriesML7984 andPneumatic

V5013 B, C, F

25, 26, 78

Three Way GlobeB and F are mixingC is 2-position diverting

Hot or Chilled

Water, GlycolEqual Percentage Threaded and

Flanged

1/2 to 6 (13 to 150)

3/4 and 1.5 (19 and 38)


V335/345

Two Way GlobeA-Stem down to closeB-Stem down to closeC-Stem down to openD-Stem down to open

A-Water, GlycolB-SteamC-Water, GlycolD-Steam

A-Equal Percent.B-LinearC-Equal Percent.D-Linear

Flanged2.5 to 6 (63 to 150)

3/4 and 1.5 (19 and 38)


V336/346

23, 24

Three Way GlobeMixing Only

Hot or Chilled

Water, Glycol

Modified Equal Percentage Flanged

2.5 to 6 (63 to 150)

3/4 and 1.5 (19 and 38)


V5045 Two Way GlobeHot Water or

Steam Quick Opening Threaded1/2 to 2 (13 to

50)

1/4 to 3/8 (6 to 9)

V2045

V5047 17Two Way Double

Seated GlobeHot or

Chilled WaterTwo-Position

Equal Percentage Threaded1 to 2 (25 to

50)

9/16 to 3/4 (6 to 14)

Pneumatic or Mod IV with

Linkage

V5051 Two Way CageHot or Chilled

Water, SteamModified Linear Flanged

2.5 to 6 (63 to 150)

1.5 (38)Pneumatic or Mod IV with

Linkage

V5086 Thermostatic RadiatorHot Water or

Steam Linear Threaded1/8 to

1.25 (3 to 31)

1/4(6)Integral

Thermostatic

V5852/62 97 Two Way Globe

Hot or Chilled

Water, GlycolEqual Percentage

52 is Soldered62 is Threaded

1/2 and 3/4 (13 and 19)

1/4(6)Electronic M64/

74 or MP958 Pneumatic

V5853/63 97

Three Way GlobeMixing Only

Hot or Chilled

Water, Glycol

Equal Percentage and Linear

53 is Soldered63 is Threaded

1/2 and 3/4 (13 and 19)

1/4(6)Electronic M64/

74 or MP958 Pneumatic

Ball Valves

VB30A49 to

65 Two Way Ball ValveWater, Glycol, Steam

Equal Percentage Threaded1/2 to 2 (13 to

50)Rotary

Direct Coupled Actuator

VB30B49 to

65 Three Way Ball ValveHot or Chilled

Water, GlycolLinear Threaded

1/2 to 2 (13 to

50)Rotary

Direct Coupled Actuator

TABLE LISTING OF HONEYWELL COMMERCIAL VALVES PAGE 1


Valve Series Group

Page No.

Configuration Application Plug Type Connections

Pipe Size Inch (mm)

Stem Lift Inch (mm)

Actuator

Cartridge-Type Valves

V4043V8043 30

Two Way Gate-Type Valve

Hot or Chilled

Water, SteamRound Ball

Flare, Soldered and

Threaded

1/2,3/4, 1(13,

19, 25)Rotary

Integral Series 40 or 80 Actuator

V4044V8044 30

Three Way Gate-Type Diverting Valve

Hot or Chilled Water Round Ball

Flare, Soldered and

Threaded

1/2, 3/4 inch

(13,19)Rotary

Integral Series 40 or 80 Actuator

VC 29Two-Way or Three-

Way Mixing or Diverting Valve

Hot or Chilled Water

Quick Opening or Linearized

Cartridge

Soldered and Threaded

1/2,3/4, 1(13,

19, 25)

Integral Floating or Two-

Position

Butterfly Valve

V51 7 Butterfly ValveWater or Steam Plate Threaded

1.5 to 4 (38 to 100)

RotaryMod IV with

Linkage

Pneumatic Unitary Globe Valves

VP512Two-Way Normally

OpenHot Water or

Steam Equal Percentage Threaded1/2 to

1.25 (13 to 31)

Integral Pneumatic

VP513Two-Way Normally Open or Normally

Closed

Hot or Chilled

Water, SteamEqual Percentage Flare

5/8 or 7/8 (16 or 22)

Integral Pneumatic

VP517 Three-Way Mixing Hot or Chilled Water

Constant Total Flare 7/8 (22) Integral Pneumatic

VP522 Three-Way Sequencing Hot or Chilled Water

A-Equal Percent.B-Quick Opening

Flare1/2,

5/8, 7/8 (13, 16,

22)

Integral Pneumatic

VP525 Two-Way Normally Open

Hot Water or Steam

Modified Linear Threaded 1/2, 3/4 (13, 19)

Integral Pneumatic

VP526 Three-Way MixingHigh

Pressure Hot or Chilled

Water

Linear and Constant Total

Flare1/2 and 5/8 (13,

16)Integral

Pneumatic


High Pressure Hot

or Chilled Water

Equal Percentage Flare 1/2 (13) Integral Pneumatic


Hot or Chilled

Water, SteamModified Equal

PercentageThreaded and

Soldered

NPT1/2, 3/4 (13, 19)Solder5/8, 7/8(16, 22)

Integral Pneumatic

TABLE LISTING OF HONEYWELL COMMERCIAL VALVES PAGE 2



BALL VALVE COMPONENTS

The bracket for ball valves is fastened tothe top of the valve with bolts that arethreaded into the body. The stem extensionis fastened to the valve stem without any

setscrews or bolts. Brackets are availablefor use with the various direct coupledactuators that Honeywell produces.

FLAT FORATTACHING STEM

ADAPTER

0-RINGSTEMSEAL

THRUSTWASHER

SEALS FOR BALL

BRACKET FORATTACHING

ACTUATOR TO VALVE

CONNECTION TOBRACKET STEM

EXTENSION

TWO-WAYBALL

THREE-WAY VALVE

SPRING RETURNACTUATOR

ANTI-ROTATIONBRACKET

OPENINGIN SIDE

OF BALLFOR

FLOW OFWATER

(NOTVISIBLE)

OPENINGIN SIDEOF BALLFORFLOW OFWATER(NOTVISIBLE)


ROTATIONSTOP

ROTATIONSTOP

POSITIONINDICATOR

VALVE STEM

LINKAGE TOACTUATOR

Most ball valve stems are either 1/2 (13 mm)

or 1 inch (25 mm). The hub size of the actuatorshould match the diameter of the stem. Thisis important since most of the direct coupledactuators are available with various hub sizes.Similar to most globe valves the stem shouldalways be one degree or more above horizontal.Direct contact of moisture or condensation cancause damage to most direct coupled actuators.

Honeywell ball valves are designed with arotation of approximately 90 degrees. If thislimit is substantially exceeded the positionindicator will be bent with no other damageto the valve. The indicator is repairable bybending it back to the correct position. MostHoneywell direct coupled actuators are 90 or95 degrees of rotation so no adjustments are

PIPEHORIZONTAL

ACCEPTABLE

required. It is important however to installthe actuator correctly so that the startpointof the actuator aligns correctly with thestartpoint of the valve rotation. Many ballvalves are sold as preset assemblies whichrequire no adjustment. Installation of anew actuator or replacement of a defectiveunit however will require alignment ofthe startpoints of the valve and theactuator. This is discussed on the nextpages.

BALL VALVE ROTATION LIMITS


Ball valves are available either as acomplete assembly or as a separate itemwithout an actuator. Illustrated on thispage is the valve without an actuator. Thiscan facilitate installation since the valvebody can be installed in the piping whileconstruction work that might damage theactuator continues around the device. Onthe next pages certain procedures required

to install the actuator onto the valve areillustrated.

The valve linkage is pre-installed on thevalve. There are different linkages fordifferent actuators though one linkage canbe used with more than one type ofactuator. The diameter and height of thestem varies also.

PACKAGE WITHBRACKETS AND

BOLTS

VALVEHANDLE

LITERATURE VALVE INSIDE OFPACKING MATERIAL

BRACKETSNUT FORHANDLE

BOLTS FORBRACKETS

HANDLEINSTALLEDON VALVE

BALL VALVE SPRING RETURN ACTUATOR INSTALLATION PROCEDURE PAGE 1



DAMPERBRACKET-NOT

USED FORVALVE

APPLICATIONS

BOXCONTAINING

HUB ANDPOSITION

INDICATOR

REVERSIBLEHUB

RETAININGCLIP FOR HUB

POSITIONINDICATOR

HUB FORINDICATOR

SCREWSFOR

INDICATOR

ACTUATORWITHOUT

HUB

This is the components of a 142 lb-in (17 N-

m) actuator. Other torque ranges will beslightly different so refer to the literature forinstructions. This actuator is supplied in abox with all of the components necessary fora damper installation. The bracket and

position indicator will probably not be used.The reversible hub is contained in a box. Inmost applications it should be installed withthe hub closest to the valve. Reversing thehub does not reverse the direction of theactuator.

ACTUATOR



USE WITH 142 LB-IN (16 N-M) SPRINGRETURN ACTUATORS

USE WITH 150 OR 300 LB-IN (17 OR 34 N-M)NON-SPRING RETURN ACTUATORS



There are many ball valve and actuatorcombinations available. There are four anti-rotation brackets available for the medium

and large direct coupled actuators. Onlyone of them is used for any single valve.Bolts are included in the package.


THREE-WAY BALL VALVES

MIXINGDIVERTING

HOTWATERRETURN

SUPPLY

AB

B

A

COILHOTWATERSUPPLY B

AAB

RETURN

COIL

Honeywell three-way ball valves arerated as divertingbut can be used formixing applicationsif the pressure dropis limited to 60 PSI(413 kPa).


DIRECT COUPLED ACTUATORS

For many years the primary method ofcontrolling a commercial valve with anelectric actuator was to use a three pieceassembly. It consisted of a valve body, avalve linkage and an electric or electronicactuator.

A recent product development isDirect Coupled Actuators (DCA). Theseare compact, economical and availablefor small to medium sized applications.DCA’s are widely used on damperapplications. New products for ball valvesand commercial globe valves permit theuse of these same actuators on valves.

This is a benefit to both the service personand the building owner in that one actuatorcan be stocked for replacement of bothvalve and damper actuators. There is alsoa standardization of wiring connectionsbetween between actuators regardless ofthe application. The torque rating of thesedirect coupled actuators is generally notas high as pneumatic actuators so theywill primarily be limited to small andmedium size valves. The higher flowcapacities of ball valves though willgenerally result in many applications ofdirect coupled actuators on valves.

ACTUATOR AND VALVELINKAGE

BALL VALVE WITH DIRECT COUPLEDACTUATOR

COMMERCIALGLOBE VALVE

VALVELINKAGE

MOTOR

COMMERCIALBALL VALVE

VALVELINKAGE

DIRECT COUPLED DAMPEROR VALVE ACTUATOR

HANDLE USED AS APOSITION INDICATOR


COMPONENTS OF A SPRING RETURN DIRECT COUPLED ACTUATOR

Direct coupled actuators are widely usedon damper applications today. The samedevices can now be used on ball valves.They are available in a wide range ortorque outputs and in most control seriesconfigurations. Besides being moreeconomical than conventional actuators

there are other benefits associated withusing these devices. Installation istypically quicker with fewer linkages andadjustments. The weight of the actuatoris substantially less. The same actuatorcan be used for the dampers in additionto the valves thereby reducing inventory.

COMPONENTS OF BOTH SIDES OF A 25 OR 50 LB-IN (3 OR 6 N-M) ACTUATOR

REVERSIBLE ANDREMOVABLE OUTPUT

DRIVE HUB

RETAINING RING

DUAL AUXILIARYSWITCH AND CAM

AC SYNCHRONOUSMOTOR

POWER FAIL RETURNSPRING

DC SPRING DRIVEMOTOR

CONTROL WIRES

AUXILIARY SWITCHWIRES

CONDUITCONNECTORS


50 POUND (6 N-M) SPRING RETURN ACTUATORS ON BALL VALVES

ANTI-ROTATION BRACKETTHAT IS INCLUDED WITHSOME BALL VALVELINKAGE ASSEMBLIES.

ONLY USE WITH THIS TYPE OF 50 POUND(6 N-m) SPRING RETURN ACTUATOR. A

DIFFERENT BRACKET IS USED WITH NON-SPRING RETURN ACTUATORS AND OTHER

TORQUE RANGES OF SPRING RETURNACTUATORS.

THE KNOB OR TIP OF THEBRACKET SHOULD BE LOCATEDIN THE SLOT OF THE ACTUATORSO THAT THE ACTUATOR CANFLOAT SLIGHTLY UP AND DOWNAS THE VALVE SHAFT ROTATES.IF THE ACTUATOR WERE TO BE

FASTENED TIGHTLY TO THEANTI-ROTATION BRACKET THELACK OF THIS FLOAT COULDHAVE A DETRIMENTAL EFFECTOF THE ACTUATOR HUBBEARING ASSEMBLY.

RANGE OFAVAILABLE

FLOAT ASVALVESHAFT

ROTATES

TOP PORTION OFACTUATOR

ANCHORED BYVALVE SHAFT

There are several ball valve linkagesand each is designed to be used onlywith certain actuators. One or moreanti-rotation brackets are includedwith the ball valve. These aredesigned to anchor the back of theactuator so it does not spin. It must

be a loose connection so that thereis some float as the actuator isturned. Never firmly attach a directcoupled actuator to the anti-rotationbracket as this will cause side forceson the valve stem.

BRACKET


The 50 pound springreturn (6 N-m) actuatorscan be flipped over duringinstallation. This reversesthe direction of the springreturn and the opening ofthe actuator. The arrow onthe cover denotes thedirection of spring return.The rotation of theseactuators is 90 degrees.The startpoint of the valvemust be al igned asindicated by the positionof the handle. When theactuator is installed forclockwise spring return theva lve assemb ly i sn o r m a l l y c l o s e d .Counterclockwise springreturn is for normally openvalve assemblies.

COUNTERCLOCKWISEROTATION ONREMOVAL OF POWER

CLOCKWISEROTATION ONREMOVAL OFPOWER

The hub can be on either sideof the actuator though it is bestto have it on the side away fromthe valve if the actuator is setfor a normally open valve. Itsposition does not affect thedirection of spring return or thecontrol output.

HUB

FLIPACTUATORUPSIDEDOWN

NORMALLYCLOSEDVALVEASSEMBLY

NORMALLYOPEN VALVEASSEMBLY

ROTATION & SPRING RETURN REVERSAL FOR 50 LB-IN (6 N-M) SPRING RETURN ACTUATORS


HUB INSERTS FOR 50 LB-IN (6 N-M) ACTUATORS

Remove HubInsert that issupplied withactuator.

Loosen setscrewswith hex wrench.

Install new hub, re-insert setscrews andtighten.

1

3

2

DEVICE3/8 inch (10 mm)

5/8 inch (16 mm)

3/4 inch (19 mm)

PART NUMBER205753205758205617

4 mm WRENCH

The hub insert is replaceable on the 50 lb-in (6 N-m) line of actuators. They aretypically supplied with a 1/2 inch (13 mm)

insert. There are three replacement hubinserts available. These are primarily foruse with damper shafts and will probablynot be used with ball valves since most ballvalves linkages from Honeywell are either

1/2 or 1 inch (13 or 25 mm) in diameter. Itimportant to use the correct hub insertwhen applying them to ball valves. Thehub insert should always be the same sizeas the valve stem. The 50 lb-in (6 N-m)line of actuators does not have sufficienttorque to be used with the ball valves witha 1 inch stem (25 mm).

The 150 lb-in (17 N-m) non-spring returnactuators use the same hub inserts.

The same setscrew fastens the insert tothe hub and the insert to the damper shaft.


150 LB-IN (17 N-M) NON-SPRING RETURN ACTUATOR COMPONENTS

POSITIONINDICATOR

REMOVEABLE HUB

DECLUTCHBUTTON- PUSHING

THIS DISCONNECTSTHE MOTOR FROM

THE HUB. THEVALVE SHAFT CANTHEN BE TURNEDTO ALIGN IT WITH

THE STARTPOINT OFTHE ACTUATOR.

The non-spring return actuators areinstalled on the flat back side only. Direct-reverse adjustments are done on series70 units with a switch on the side. Themounting hub is reversible but willportrude substantially when installedfrom the back. Hub inserts are available

for various shaft sizes but only the 1/2inch (13 mm) that is typically suppliedwith the actuator should be used.

The declutch button is used to adjust thestartpoint of the shaft rotation after theactuator is attached to the valve shaft.

DIRECT-REVERSESWITCH

ONSERIES 70

UNITS

INSTALLATION BRACKET THAT IS SUPPLIEDWITH BALL VALVE ASSEMBLY

BRACKET INSTALLED

TOPPORTION OFACTUATORANCHOREDBY VALVESHAFT

BRACKET


300 LB-IN (34 N-M) NON-SPRING RETURN ACTUATOR COMPONENTS

SIDE VIEW OFACTUATOR

HUB

RETAININGCLIP

OTHER SIZES OFHUB INSERTSAVAILABLE

205843B-1 IN.(25 mm)205856B-3/4 IN. (19)205849A-5/8 IN. (17)

POSITION INDICATOR

REMOVEABLE HUB

DECLUTCH BUTTON- PUSHINGTHIS DISCONNECTS THE MOTOR

FROM THE HUB. THE VALVE SHAFTCAN THEN BE TURNED TO ALIGNIT WITH THE STARTPOINT OF THE

ACTUATOR.

The 300 lb-in (34 N-m) non-spring returnactuators are installed on the flat back sideonly. Direct-reverse adjustments are doneon series 70 units with a switch on the side.Hub inserts are available for various shaftsizes but only the 1/2 or 1 inch inch (13 or

25 mm) that is typically supplied with theactuator should be used.

The declutch button is used to adjust thestartpoint of the shaft rotation after theactuator is attached to the valve shaft.

INSTALLATION BRACKET THAT IS SUPPLIEDWITH BALL VALVE ASSEMBLY BRACKET INSTALLED

TOPPORTION OFACTUATORANCHOREDBY VALVESHAFT

BRACKET

HUBINSERT


HUB ISAUTOMATICALLY

CENTERED ON SHAFTAS THIS IS TIGHTENED

ON SHAFT

MANUAL OVERRIDEOPENING FOR ALLEN

WRENCH

SPAN ADJUSTMENT(ONLY ON UNITS WITHSIGNAL ADJUSTMENT)

STARTPOINTADJUSTMENT (ONLY ON

UNITS WITH SIGNALADJUSTMENT)

LOCK SCREW FOR USEAFTER OPENING

ACTUATOR MANUALLYWITH WRENCH. TURN

TILL THERE IS A CLICK.IT AUTOMATICALLY

UNLOCKS AFTERPOWER IS RESTORED.

THIS POTENTIOMETERIS USED FOR SOME

CONTROLCONFIGURATIONS

MINIMUM SHAFTDIAMETER IS 3/8 INCH (10MM) AND MAXIMUM IS 1INCH (25 MM) ROUND.

THESE ACTUATORSSHOULD NOT BE STACKEDON THE SAME SHAFT.

HUB RETAINING CLIP

CONDUIT CONNECTORS

CONTROL WIRES

AUXILIARY SWITCH WIRES

LOCATION FOR BRACKET

INSTALLATION BRACKET

This is a 142 lb (16 N-m) actuator with a self-centering hub. High torque spring returnactuators are among the most widely usedtype in heating, ventilating and airconditioning applications. Spring return is

required to prevent coil freeze-up. They aremost widely applied on the three-way andlarger two-way ball valves. Honeywell hasthese available in most control series.

142 LB (16N-M) SPRING RETURN ACTUATOR COMPONENTS


142 LB (16N-M) SPRING RETURN ACTUATOR ROTATION AND HUB REVERSAL

COUNTERCLOCKWISEROTATION ON

REMOVAL OF POWER

FLIP ACTUATOR180 DEGREES

HUB RETAINING CLIP

RETAINING CLIP HUB

NORMALLYCLOSED

NORMALLYOPEN

Though the hubs can beinstalled on either sideof the actuator asillustrated here this doesnot affect either thespring return or thedirection of control. Thehub should be installedon the actuator sideclosest to the valve.

CLOCKWISEROTATION ONREMOVAL OF POWER

THE HANDLEON A BALLVALVE IS A

POSITIONINDICATOR.THIS VALVE

ASSEMBLY ISNORMALLYOPEN SINCE

THE ACTUATORIS INSTALLED

IN THEPOSITION OF

SPRINGRETURN

CLOCKWISEWITH NOPOWER.

WITH THEACTUATOR

FLIPPED TO THISSIDE THE HUB

SHOULD ONLY BEFASTENED TO THESTEM WHEN THEVALVE IS PUT TO

THE CLOSEDPOSITION.

This actuator is reversed by flipping it 180degrees. This reverses not only the directionof opening and closing but also the springreturn. Since the actuator on the right springreturns in a different direction the hub must

be fastened to the stem while the valve is inthe closed position. Otherwise the positionindicator will be bent. The control of thevalve assembly will also not be correct.


142 LB (16N-M) SPRING RETURN ACTUATOR AUXILIARY SWITCH ADJUSTMENTS

This line of actuators is availablewith and without auxiliary switches.If there are no switches there will beno dials inside the scaleplate. It isrecommended to set the A switch toa lower value, such as between 0 and45 degrees rotation and the B switchto a higher value, such as 45 to 90degrees. The switch differential is 5degrees for each switch.

The switches should only be adjustedwhen the actuator is at the 0 degreemark on the range scale. Thescaleplate for the switches is onlycorrect when the actuator is at thatposition. If the actuator is at adifferent point on the scale, it shouldbe set close to zero by removingpower and having it spring returnclosed.

RANGE SCALE. ACTUATORROTATION IS 95 DEGREES.ROTATION ACTUALLY BEGINSAT THE -5 DEGREE MARK.

ADJUSTMENTFOR SWITCH A

ADJUSTMENT FOR SWITCH B

SOLID COLOR WIRES ARE THECONTROL CIRCUIT, STRIPED ARE

THE AUXILIARY SWITCHES

11 Gray/Red12 Gray/Blue

14 Gray/Pink

21 Black/Red

22 Black/Blue

24 Black/Pink

SWITCH AWIRING

SWITCH BWIRING


ML61/71 ACTUATORS

INSERTION LOCATIONFOR AUXILIARY

POTENTIOMETERS.ONLY AVAILABLE ON

CERTAIN MODELS.

RANGE STOP INSERTION LOCATIONS.THESE WILL PRIMARILY BE FOR

DAMPER APPLICATIONS. ON MOSTBALL VALVES THEY WILL NOT BE

USED AND LEFT OPEN.

WIRINGTERMINALS.THIS UNIT ISSERIES 60.

ML61/71ACTUATOR

INSTALLED ONBALL VALVE

ACTUATORS SUPPLIED WITH BALLVALVES ARE EQUIPPED WITH

DECLUTCH LEVERS TO ALLOW VALVESTEM ADJUSTMENTS WITHOUT

POWERING ACTUATOR.

ML6161A WITHAUXILIARY

SWITCHES ANDAUXILIARY

POTENTIOMETERINSTALLED. THE

BALL VALVEHANDLE

CANNOT BEUSED IF THEAUXILIARY

SWITCHES AREINSTALLED.



ML6421/ 6425/ 7421/ 7425 VALVE ACTUATORS

The ML6421/ML6425/ML7421/ML7425 are a series of direct coupledvalve actuators for use with HoneywellV5011 and V5013 valves. The springreturn ML6425 and ML7425 areavailable as stem retracted or stemextended on power outtage. The close-off rating for the non-spring return unitsmakes them usable on valves up to 6inches (15 cm) in diameter. There are awide range of control signal optionsavailable with 2-10 vdc, 4-20 ma, series60 SPDT and 135 ohm units available.Through settings and jumper switcheson the circuit boards inside the actuatorthey can be set up for direct/reverse or

the actuator position in the event of nocontrol signal input.

The ML6421 and ML7421 are equippedwith a manual operator knob to open orclose the valve in the event of powerfailure. Turn off or disconnect the powersupply before manually operating theML7421. To operate push down on themanual operator knob and turn the knobcounterclockwise to move the stemdownward or turn the knob clockwiseto move the stem upward. When theactuator is returned to automatic controlthe manual operator knob unlocksautomatically.

ML6421/ML7421 NON-SPRING RETURN VALVE

ACTUATOR

ML6425/ML7425 SPRINGRETURN VALVE

ACTUATOR

MANUAL OPENER


INSTALLING ML6421/ML7421

NOTE: Check valve bodyliterature for valve stemb u t t o n a d j u s t m e n tdimension.

PIPEHORIZONTAL

ACCEPTABLE

CAUTION

Do not install actuator in aposition below horizontal tominimize risk of damage tothe actuator in the event ofcondensation or a valvepacking leak.

3Lift the valve stem until the head of thevalve stem button is inside the large slot ofthe stem button retaining clip on the actuator.

Release the stem button retaining clip tosecure the stem button.

Check to ensure that retaining clip holdsthe stem button in place.

4

5

IMPORTANTWhen tightening the set screws,first tighten the right set screw.

Attach the actuator to the valve collar andtighten the set screws with a 5/32 inch (4

mm) hex wrench.

1

2 Push in the stem button retaining clip andhold.

TIGHTENRIGHTSET SCREWFIRST

ML6421/ 7421 VALVE ACTUATOR INSTALLATION PROCEDURE


NOTE:Check valvebody literaturefor valve stemb u t t o na d j u s t m e n tdimension.

PIPEHORIZONTAL

ACCEPTABLE

CAUTION

Do not install actuator in a position below horizontalto minimize risk of damage to the actuator in the eventof condensation or a valve packing leak.

Place theactuator onthe valvewith the U-bolt aroundthe valvecollar.

Place the U-bolt against the valvecollar and secure the actuator tothe valve by turning each U-boltnut clockwise. To assure of evenpressure on the collar, first tightenthe nuts finger-tight and thenalternate turning each U-bolt nutuntil both are snug.

Release the stem buttonretaining clip to securethe stem button. Check tomake certain the stembutton is secured by theretaining clip.

Push aside thestem but tonretaining clipand hold.

Lift the valvestem until thehead of thev a l v e s t e mbutton is insidethe large slot ofthe stem buttonretaining clip onthe actuator.

R e l e a s espring byprocedureon nextpage.

2

1 3

ML7425 VALVE ACTUATOR INSTALLATION PAGE 1


STEMABOVE

PINS

5

Stem is now above pins and rotatesfreely. The spring is released andwill either retract or extend the stemupon a power outtage to the actuator.

SPRING RELEASED

4

A screwdriver is the only tool requiredto release the spring. Remove the redretaining clip before prying up thehandle. The handle will begin to spinimmediately so be certain that yourfingers are clear from the top.

1

2

UNLOCKING SPRING

The ML6425 and ML7425 are springreturn valves. The spring that eitherextends or retracts the stem is locked intoa fully open position on new actuators.This allows for installation onto the valveand then release of the spring. It is notnecessary to have power on the actuatorprior to or during installation.

Stem cannot rotate because of beinglocked into pins at bottom. Red clip at topkeeps stem in locked position.

REDCLIP

PINS

SPRING TEMPORARILYLOCKED

ML7425 VALVE ACTUATOR INSTALLATION PAGE 2


ML6421/ 6425 VALVE ACTUATOR WIRING DIAGRAMS

The ML6421 andM L 6 4 2 5 v a l v eactuators are bothcontrolled by series 60,Single Pole DoubleThrow, controllers.This can be either atwo- position SPDT ora floating SPDT witha center-off position.Applying 24 Vac to T1and W will power theac tua to r i n onedirection. Applying 24Vac to T1 and B willpower the actuator inthe other direction.

There are not as manyadjustments or wiringconfigurations for theseries 60 actuators asthere is for the series70 ML7421 andML7425. Since therea r e a u x i l i a r ypotentiometers andauxiliary switchesavailable for thesedevices, there might bevar iat ions in thenumber of terminalconnections.

ML6421 WIRING DIAGRAM

ML6425 WIRING DIAGRAM

WIRINGSTRIP

T1

W

B

L1(HOT)

L2

W

R

W

B

T

Y

G

R

B

ML6421A,B

POWER SUPPLY.PROVIDEDISCONNECTMEANS ANDOVERLOADPROTECTION ASREQUIRED.

ALL WIRING BLOCKS HAVE THE SAMENUMBER OF TERMINALS (8), BUT THEONLY TERMINALS THAT ARE ACTIVE ONTHIS BLOCK ARE T1,W,AND B.

THE TERMINALS WHICH APPEAR IN THISWIRING DIAGRAM AS A SIX TERMINAL WIRINGBLOCK (R-W-B AND T-Y-G ) ARE NOT PART OFTHE MAIN WIRING BLOCK. THEY ALSO DO NOTAPPEAR ON ALL MODELS BECAUSE R-W-B AREFOR A SINGLE FEEDBACK POTENTIOMETERAND T-Y-G ARE FOR A SECOND DUALFEEDBACK POTENTIOMETER. BOTHPOTENTIOMETERS ARE 220 OHMS. THEREQUIRED POTENTIOMETER WIRING BLOCKSARE INCLUDED WITH THE POTENTIOMETERASSEMBLY.

SPDTCONTROLLER

L1(HOT)

L2

W

R

BSPDTCONTROLLER

WIRINGSTRIP

T1

T2

W

B

T

Y

G

ML6425A,B


ALL WIRING BLOCKS HAVE THE SAME NUMBEROF TERMINALS (8), BUT THE ONLY TERMINALSTHAT ARE ACTIVE ON THIS BLOCK ARE T1, T2,W, AND B.

THE TERMINALS THAT APPEAR IN THIS WIRINGDIAGRAM AS A THREE TERMINAL WIRINGBLOCK (T-Y-G ) ARE NOT PART OF THE MAINWIRING BLOCK. THEY ALSO DO NOT APPEAR ONALL MODELS BECAUSE T-Y-G ARE FOR A SINGLEFEEDBACK POTENTIOMETER, WHICH CAN BE 220OHMS OR 10K OHMS. THE REQUIREDPOTENTIOMETER WIRING BLOCKS AREINCLUDED WITH THE POTENTIOMETERASSEMBLY.


ML7421 VALVE ACTUATOR WIRING DIAGRAMS

ML7421 WIRING DIAGRAM - Dcv

0 TO 10 OR 2 TO 10VDC CONTROLSIGNAL(DEPENDING ONACTUATORMODEL).

ML7421 WIRING DIAGRAM - 135 Ω

SERIES 90 SLIDE -WIRE CONTROLLER.

CODING SWITCHJ1-J2 MUST BEOPEN WITHSERIES 90CONTROLLER

ML7421 WIRING DIAGRAM - 4-20 ma

The ML7421 valve actuators arecontrolled by series 70, electroniccont ro l le rs or ser ies 90potentiometers. Electronic signalinputs can be either a 0 to 10, 2to 10 Vdc or a 4 to 20 ma. Sincethere are auxiliary potentiometersand auxiliary switches availablefor these devices there might bevariations in the number ofterminal connections.

In addit ion to the wiringconnections there are adjustmentsand settings for:

In the event of no controlsignal input

Override of control signal

Actuator direction, direct orreverse

These settings and adjustmentschange from the spring return tothe non-spring return and fromseries 60 to series 70 actuators soit is necessary to check theliterature before making settings.These are illustrated for theML7421 on the next page.

WIRINGSTRIP

T 1

T 2

+

O 1

O 2

R 1

W 1

B 1

L1(HOT)

L2

–+

SIGNAL

ML7421A,B

POWER SUPPLY. PROVIDE DISCONNECTMEANS AND OVERLOAD PROTECTION

AS REQUIRED.

L1(HOT)

L2

WIRINGSTRIP

T 1

T 2

+

O 1

O 2

R 1

W1

B 1

ML7421A,B

B

W

R

WIRINGSTRIP

T1

+T2

O1

R 1W1B 1

O2

1 2 3 4 5 6

ML7421

SINGLETRANSFORMER

40 VA, 24 VACPOWER SUPPLY.

PROVIDEDISCONNECTMEANS AND

OVERLOADPROTECTION

AS REQUIRED.

SENSOR

TERMINALS: T, Y, AND G DONOT APPEAR ON THE WIRINGBLOCK, OR EVEN ON ALLMODELS BECAUSE THEY AREFOR THE OPTIONAL 220 OHMFEEDBACK POTENTIOMETER.

TYG

123

T775 (WITH 4 TO 20MA OUTPUT)

500 OHMRESISTOR

L1(HOT)

L2

POWER SUPPLY. PROVIDE DISCONNECTMEANS AND OVERLOAD PROTECTION

AS REQUIRED.


ML7421 VALVE ACTUATOR CONTROL FUNCTIONS

SIGNAL OVERRIDE

The ML7421 is equipped with a signaloverride function. This can be used as a lowor high limit or a switchover. The controlsignal is completely shut out and the actuatoris put to either a full open or a full closedposition. This is done from a Single PoleDouble Throw switch. Some applicationsmight be:

1. Supply air low limit2. Freeze avoidance3. Heat/cool switchover4. Occupied/unoccupied5. High temperature l imi t6. Humidity high limit

SIGNAL REVERSE SWITCH S1

ACTION WITH NO SIGNAL INPUT

The S1 switch is only on 0 to 10 VDC actuators.It is used to reverse the output of the actuatorto a control signal. The ML7421 is set to extendor push downward on an increasing controlvoltage signal. It will retract on a decreasingvoltage. Adjusting S1 will reverse this. It is onthe printed circuit board. On actuators with 2to 10 vdc circuitry, the action is reversed byswitching the control wiring.

Electric and electronic actuators arefrequently designed to be "electricallyclosed" or "electrically open." This refers tothe position the actuator will be in if thecontrol signal is removed. This is not thesame though as normally closed or normallyopen, which is what occurs if the power istaken off the device. On the ML7421 theposition of the actuator is adjustable whenthere is no control signal. The actuator can beput to full open, full closed or 50% open.Note: This only applies to control circuitsother than series 90. For series 90 control theswitch must be open.

Switch open: actuatorgoes to middle positionon no control signal.

Switch in J1 position:actuator goes to fulllower position if nosignal.

Switch in J2 position:actuator goes to fullupper position if nosignal.

1

2

3

J1 J2

WIRINGSTRIP

T 1

T 2

+

O 1

O 2

R 1

W 1

B 1

ML7421A,B

0 TO 10 OR 2TO 10 VDCCONTROL

SIGNALOUTPUT

(DEPENDINGON ACTUATOR

MODEL).

SP3TOVERRIDE

SWITCH

L1(HOT)

L2


SWITCH CONNECTED TOTERMINAL O1: ACTUATORFULLY LOWERED. SWITCHCONNECTED TO O2:ACTUATOR FULLY RAISED.

WIRE


ML7425 VALVE ACTUATOR WIRING DIAGRAMS

ML7425 WIRING DIAGRAM - Dcv

ML7421 WIRING DIAGRAM - 4-20 ma

The ML7425 valve actuators arecontrolled by series 70, electroniccontrollers. Electronic signal inputscan be either a 0 to 10, 2 to 10 Vdcor a 4-20 ma. Since there areauxiliary potentiometers andauxiliary switches available forthese devices there might bevariations in the number ofterminal connections.

In addit ion to the wir ingconnections, there are adjustmentsand settings for:

In the event of no controlsignal input

Override of control signal

Actuator direction, direct orreverse

Signal voltage of 0 to 10 Vdcor 2 to 10 Vdc.

ML7425 SIGNAL OVERRIDE

WIRINGSTRIP

F

+

-T 2

T 1

O 1

O 2

T S

L1(HOT)

L2

+

FEEDBACK TOCONTROLLER

CONTROLSIGNAL

ML7425A,B

POWER SUPPLY. PROVIDEDISCONNECT MEANS AND OVERLOADPROTECTION AS REQUIRED.

1 2 3 4 5 6SINGLE

TRANSFORMER40 VA, 24 VAC

POWERSUPPLY.


OVERLOADPROTECTION

AS REQUIRED.

SENSOR

123

T775 (WITH 4 TO20 MA OUTPUT)

500 OHMRESISTOR

L1(HOT)

L2

–

F

WIRINGSTRIP

F

+

-T 2

T 1

O 1

O 2

T S

ML7425A,B

WIRINGSTRIP

F

+

-T 2

T 1

O 1

O 2

T S

L1(HOT)

L2

+

FEEDBACK TOCONTROLLER

CONTROLSIGNAL

ML7425A,B

POWERSUPPLY.


OVERLOADPROTECTION

ASREQUIRED.

–

F

SP3T OVERRIDESWITCH

SWITCH CONNECTED TO TERMINALO1: ACTUATOR FULLY RAISED.SWITCH CONNECTED TO O2:ACTUATOR FULLY LOWERED.


ML7425 VALVE ACTUATOR JUMPER PLUG SETTINGS

THE W2 PLUG SETS THEELECTRONIC CIRCUITRYFOR EITHER 2 TO 10 VDCOR 0 TO 10 VDC.

THE W3 PLUG SETSTHE ACTUATOR FORD I R E C T O RREVERSE.

There are 3 jumper plugs on the circuitboard of the ML7425 which are used tomake 3 separate adjustments. Each

adjustment is set by removing a blackjumper plug and reinstalling it in theintended position.

A 10 VDCCONTROLSIGNALRAISESACTUATORSTEM

THE W1 PLUG SETS THEP O S I T I O N O F T H EACTUATOR WITH NOCONTROL SIGNAL INPUT.

0% EQUALSA SIGNALOF 0 OR 2VDC

50% ISVALVE INMID-POSITION

A 10 VDCCONTROLSIGNALLOWERS

ACTUATORSTEM

100% IS THEPOSITION OFVALVE WITH

A 10 VDCINPUT

SIGNAL

2 TO10VDC

W1W3 W2

0 TO 10VDC

JUMPERPLUG



ML7984 VALVE ACTUATOR

150 lbF(665 N)

FLOATINGSERIES 604-20 mA2-10 vdc

SERIES 90

63SECONDS

70SECONDS

MODEL STEM FORCE INPUT TIMING

ML684

ML784

ML984

ML7984REPLACESABOVEEXCEPTML684

160 lbf(710 N)

4-20 mA,2-10 vdc,

135 Ohms,ElectronicSeries 90,

Pulse WidthModulation

The ML7984 is acombination non-springreturn actuator andlinkage for one (2.5 cm) tothree inch (7.5 cm)

commercial globe valveswith a 3/4 inch (1.9 cm)

stem lift. It replacess e v e r a l p r e v i o u sHoneywell actuators witha single device that can beused with multiple typesof controllers. A separateactuator is available justf o r p u l s e w i d t hmodulation. Dip switcheson the circuit board areused to configure thedevice for various typesof control inputs. Noadjustments are requiredto install this actuatorother than for the controlcircuit.

POSITIONINDICATOR

U-BOLTSUSED TOFASTEN

ACTUATORTO VALVE

INSERTFOR

VALVESTEM


Honeywell’s commercial globe valveswere modified in 1987. In addition tochanges in the disc and seatconfigurations the shape of the bonnetwas altered. This affected the use ofthe ML7984 actuator. The amount ofclose-off changes from the pre-1987valves to the newer ones when aML7984 is used. This is caused bythe change in effective stem lift when

the actuator is used with the newervalves. To solve this there is a specificactuator ML7984A 3019 made for theV5011 or V5013A and C valves. TheML7984A 3001 is made for the newerV5011 or V5013 F or G valves. Thiswill only be important in retrofitapplications since the 5-sided bonnetvalves are no longer sold.

5-SIDED BONNET

PRE-1987V5011 A or C

NEW V5011F or G

USE ML7984A 3019ACTUATOR

USE ML7984A 3001ACTUATOR ONLY

PRE-1987V5013

NEWV5013

8-SIDED BONNET

ML7984 VALVE ACTUATOR APPLICATION REQUIREMENTS


REMOVESTEM

BUTTON

RETAINSETSCREWINSIDEFORLATERUSE

STEP 1

Installing the actuator to the valve is simplebut there are a couple of very importantsteps.

First remove the stem button from thevalve. Save the set screw for laterinstallation.

Insure the valve body is installed correctlywith the arrow pointing in the direction offlow.

Although the actuator can be mounted inany position it is preferable that theML7984 is mounted above the valve body.This will minimize risk of damage to theactuator in the event of condensation or avalve gland leak.

STEP 2

Next slide the red valve position indicatordisk on the valve stem.

The indicator disk will self-align to themarking on the yoke after one completeopening and closing cycle.

ML7984 VALVE ACTUATOR INSTALLATION PROCEDURE PAGE 1


TURNACTUATORUNTIL STEM IS FULLYINSERTEDWITH NOTHREADSSHOWING.

DO NOTDAMAGESTEM ORTHREADS.

ATTACHBOLT.LOCKINTO

PLACEWITHNUTS.

NUTS

STEP 3

The drive shaft of theML7984 has a threaded holeto link with the valve stem.Thread the ML7984 driveshaft onto the valve stem allthe way, unt i l i t iscompletely attached withN O T H R E A D SSHOWING, by turning theactuator in a clockwisedirection. Use a pin orwrench to keep the valvestem from turning.

STEP 4

Orient the conduit hole tothe most desirable direction,then tighten the locknutson the U bolt.

(Continued on Next Page)



TAKE THESETSCREW

PROVIDED ORUSE THE ONE

FROM THE STEMBUTTON AND

INSTALL IT INTOTHE DRIVESHAFT AND

LOCK IN PLACE.

STEP 5

Remove the plasticcover from the ML7984by loosening the twoscrews located on thetop.

Drop the set screw(From the valve stem orfrom the plastic bag. Itis better to use the setscrew from the plasticbag because it haslocking threads.) intothe top of the shaftslotted side up.

STEP 6

With a 5mm (3/16”)

screwdriver or the allenwrench that is provided,tighten the set screwto lock the valve stemin place. The set screwis self locking, it doesnot turn freely.

Wire the controller andpower to the actuatorand replace the cover.

ALLENWRENCH THATIS PROVIDED or

5 mm (3/16”)SCREWDRIVER

DO NOTADJUSTTHESESCREWS



ML7984A VALVE ACTUATOR SWITCH SETTINGS

2 to 10 vdc Direct

2 to 10 vdc Reverse

4 to 20 mA DirectMaster

4 to 20 mA DirectSlave

4 to 20 mA ReverseMaster

4 to 20 mA ReverseSlave

Series 90 135 Ohm

Series 90 135 OhmReversed

Electronic Series 90

Electronic Series 90Reversed

If Replacing Primary or Controlled ML784 Series, Check Literature

1 2 3 4ONOFF

ONOFF

ONOFF

ONOFF

ONOFF

ONOFF

ONOFF

ONOFF

ONOFF

ONOFF

SWITCH NUMBERAPPLICATIONInside the cover of the

ML7984A on the printedcircuit board there is a 4position dip switch to theright of the wir ingterminal block. Thisswitch is used to configurethe actuator to the desiredoperating mode.

For example i f theactuator is to operate witha 10-2 Vdc (reverseacting) signal from thecontroller the dip switcheswould be configured as:

Switches 1 and 3: ONSwitches 2 and 4: OFF

When controlling multipleactuators from a primaryin the 4-20 mA or 20-4mA mode switch 1 on theprimary actuator is ONand switch 1 on thecontrolled actuators isOFF.

To reset the operatingmode simply reconfigurethe switches, interrupt,then restore power.


PULSE WIDTH MODULATION

A newer type of control circuit used withDDC controllers for which Honeywellmakes direct coupled actuators is PulseWidth Modulation (PWM). This is adigital modulation control mode whichrequires a specific actuator. The durationof a defined voltage signal sent from thecontroller to the actuator is adjusted basedupon the need for heating or cooling. Ifthe room is cold a longer signal mightbe sent to a heating valve to open it more

fully. As the room warms the duration ofthe signal is shortened to close the valve.It can be compared to Morse Codewherein shorter taps have a differentsignificance than longer taps. The timewidth or interval and the voltageresolution of the signal are notstandardized in the control industry.Honeywell PWM actuators are adjustableat installation for many types of PWMmodes.

1.38SECONDS

1.38SECONDS

1.38SECONDS

INTERVAL OFNO PULSE

INTERVAL OFNO PULSE

PULSE WIDTHMODULATIONSIGNAL OF 50%ACTUATORPOSITION

If this control circuit were this type ofpulse width modulation:

Minimum signal of 0.1 seconds0.01 second incrementsMaximum duration 2.65 seconds

Then the actuator would be at 50% orhalf open position. This is calculatedby subtracting the minimum signalfrom 2.65 seconds.

2.65 minus 0.1 equals 2.55.

2.55 divided by .01 increments equals255 increments.

The signal being sent is 1.38 seconds.This is 128 increments more than theminimum of 0.1.

128 is approximately half of 255 puttingthe actuator at a 50% position.

A pulse duration of 1.80 secondswould be 170 increments more thanthe minimum.

170 is approximately 2/3 of 255putting the actuator at a 2/3 position.

1.80SECONDS

INTERVAL OFNO PULSE

1.80SECONDS

PULSE WIDTH MODULATION SIGNALOF A 2/3 ACTUATOR POSITION


ML7984B PULSE WIDTH MODULATION VALVE ACTUATOR

This is supply air reset of a heating coil onan airhandler using pulse width modulation.The actuator is a ML7984B used with aV5011 valve. Steam or hot water is suppliedto the coil and the supply air temperaturefrom the coil is varied with the outside airtemperature to meet the needs of the

conditioned area. Proportional plus integralor proportional plus integral plus derivativecontrol will probably be required to preventexcessive cycling of the valve actuator. Thereset timing would have to be adjusted toprovide a steady positioning of the valve.

R

W

B

C

T6

T5

DUCTSENSOR

DIRECTDIGITAL RESETCONTROLLER

OUTSIDEAIR

SENSORwith

SUNSHIELD

SUPPLYAIR

TEMP

OUTSIDEAIR

TEMP75 F

(24 C)70 F

(21 C)

150 F(66 C)

-10 F(-23 C)

A

C

B

DRESET SCHEDULE


ML7984B VALVE ACTUATOR SWITCH SETTINGS

The ML7984B is designed to work withfive of the most frequently used types.Selection of one of the five types is doneby dip switches on the top of the actuator.

These same switches are also used toselect direct and reverse or to use theML7984B with a 2 to 10 vdc controlsignal instead of pulse width modulation.

1 2 3 4SWITCH NUMBER

APPLICATION

Pulse Width Modulation:minimum 0.1 sec. + 0.01 sec. increments.

Maximum 2.65 sec. Direct.

ONOFF

Pulse Width Modulation:minimum 0.1 sec. + 0.01 sec. increments

Maximum 2.65 sec. Reverse.

ONOFF



ONOFF



ONOFF



ONOFF



ONOFF



ONOFF



ONOFF


Maximum 2.93 sec. Novar. Reverse.

ONOFF

2 to 10 vdc ReverseONOFF

ONPulse Width Modulation:minimum 0.59 sec. + 0.00918 sec. increments.

Maximum 2.93 sec. Novar. Direct. OFF

ON2 to 10 vdc Direct

OFF



MOD IV VALVE AND DAMPER ACTUATORS

While Honeywell provides a complete lineof direct coupled valve actuators there aremany retrofit applications where it ispreferrable to replace a modutrol motorwith a similar motor. This could be due tohigh torque requirements or inability ofremoving insulation from the linkage. TheMod IV line of motors is available toreplace virtually all previous Honeywellactuators and can be adapted to the existinglinkage if necessary. A newer Q5001 valvelinkage is also available.

Some of the valve-specific features of theMod IV line of actuators are:

24 Vac input

Cams which allow for adding auxiliaryswitch kits

Auxiliary end shaft capable of acceptingQ5001 valve linkage

Interface Modules can be added toupgrade all Series 90 motors to Series70 control

M944MODELS

M945MODELS

M934MODELS

M975MODELS

M9184/94MODELS

M9185/86MODELS

M9164/74MODELS

M9175MODELS


The 220741A Screw TerminalBoard to adapt variousModutrol IV quick connectsto screw terminals. Optionalminimum position switch.

A Modutrol IV Resistor Boardthat can drive:

• Up to six motors in unison• One to four motors from

a 4-20 mA controller• Two or three motors from

a W973

Internal transformers

Interface modulesto adapt actuator

for various controlsignals.

Auxiliary switches forTradeline actuators.

Same functions asfactory switches. One

and two switch kitsavailable.

ACCESSORIES FOR MOD IV ACTUATORS


INSTALLATION PROCEDURE Q7130A, Q7230A,Q7330A, Q7630A Modules:

Module Interface Function Used in Replacing

Q7130A

Q7230A

Q7330A

Q7630A

Selectable voltage ranges 4-7, 6-9, or10.5-13.5 Vdc

Adjustable zero and span, current orvoltage control. Ranges include 4-20mA and 2-10 Vdc.

Control interface for W936 and W945

14-17 Vdc control with minimumposition capability

M734H,JM744DM745G

M744S,T,YM745S,T,Y

M734DM744AM745A

M745KM745L

1 Make motor adjustments (stroke and/orauxil iary switches) as needed.

Disconnect power to motor.

Plug terminal block onto motor's quick-connect terminals.

Connect field wiring to terminal block'sscrew terminals.

Check for proper operation of motorstroke and auxil iary switches.

Position ribbon cable to loop downinside motor cavity.

Place circuit module on terminal blockand secure assembly to motor with 2screws.

Make adjustments to interface module(specific adjustments depend onparticular module used).

2

3

5

6

7

8

4

ACCESSORY CONTROL CIRCUIT MODULES FOR MOD IV ACTUATORS


The shaft heigth on the Honeywell Mod IVmotors is 3/4 inches (2 cm) lower than that ofthe previous line of motors the Mod III. Whenreplacing Mod III actuators in valveapplications without replacing the Q618linkage, an adapter plate is required. Thisadapter, which raises the heigth of the shaft3/4 inches (2 cm) has been included in the boxwith some motors. This plate is installed onthe valve linkage first. The Mod IV actuatoris then bolted to the plate.

If the Q618 valve linkage is damaged and anew Q5001 linkage is used to replace it theadapter plate is not needed.

The adapter plate can also be used on damperapplications if it is necessary to have the shaftheight match the previous motor.

220738AAdapterBracket

Q618 VALVELINKAGE

INSTALLEDON A VALVE

220738AADAPTER PLATEINSTALLED ONQ618 LINKAGE

MOD IVACTUATOR ONQ618 LINKAGEWITHADAPTERPLATE

MOD IV ACTUATORS USED WITH A Q618 VALVE LINKAGE


Q5001 VALVE LINKAGE FOR MOD III AND IV ACTUATORS INSTALLATION PAGE 1

LINKAGE SETFOR 160 LBCLOSE-OFF

LINKAGE SETFOR 80 LB

CLOSE-OFF

CLIPRETAININGLEVER

STEM CLIPFOR MOD IIIOR MOD IV

MOD III

MOD IV

MOTORTYPE

REAR SLIDE PLATE

FRONTSLIDEPLATE

ANTI-SPINCLIP FOR MOD

IV ONLY

STEMBUTTON

TOPVIEW

SIDEVIEW

STEMFORCEPINS

STEMBUTTONMIDDLE

SLOT

1 Set close-off forceusing topandbottompins.

Install linkageon valve.2

If the motor is a Mod IV, install the anti-rotation clip. If it is not a Mod IV do notinstall clip and continue to step 4.

3

The Q5001 valve linkage is designed forinstalling Honeywell Mod III and Mod IVactuators on commercial globe valves. Stemforce ratings of 80, 160 or 320 pounds areavailable depending upon the actuator. Stemlifts of 1/4 inch (.625 cm) to 1.5 inches (3.75

cm) are available depending upon the camselected. Nine separate cams are available.For spring return applications the normalposition of the valve assembly can bereversed by reversing the cam. No otheradjustments are required.


STEMBUTTON

VALVESTEM

SETSCREW

FRONTSLIDEPLATE REAR

SLIDEPLATE

CLIPINSLOT

DOTTED LINESARE FORNORMALLYOPENINSTALLATION.

Install stem clip.

CLIP MUST ENGAGE SLOTS ON STEMBUTTON AND THE REAR SLIDE PLATE

Install cam on motor.

4

5

6 Install linkage on motor.

7 Fasten motor to linkagewith bolts.

12

Q5001 VALVE LINKAGE FOR MOD III AND IV ACTUATORS INSTALLATION PAGE 2


PNEUMATIC ACTUATORS

There are applications in which it ispreferable to use air-powered orpneumatic actuators on valves. Thesemight be intermixed in a building alongwith electric or electronic actuatorsdepending upon whether it is newconstruction or retrofit. There are manypurposes for using a pneumaticactuator instead of electric. Mostcommon is the size of the valve. Largervalves require higher torque foracceptable close-off ratings. Pneumaticactuators provide higher torque thanmost commercial electric actuators.

An equipment room environment thatis very humid with excessive amountsof condensation directly onto theactuator will not have a substantialeffect on a pneumatic valve actuator.While electric actuators are availablewith water resistant enclosures the costis increased and the ambienttemperature rating might be lowered.

If the actuator is cycled excessivelysuch as supply air in an airhandler themaximum number of cycles for anelectric motor can be reached in anunacceptably short length of time.Replacement of the entire actuator isfrequently required instead of repair.A pneumatic actuator is frequentlyrepairable with minimal parts and tools.

The actuators above illustrate the twotypes of pneumatic actuators: apneumatic actuator for a valveassembly on the left and an integral orunitary pneumatic valve on the right.The difference is that the unitary valvesare available only as a completeassembly. The actuators on the left areavailable in different sizes andconfigurations and can be used with awide range of valves. Repair parts areavailable for each. Unitary valves canbe adapted for various sequencingapplications by installing spring rangeswith different pressure ratings.

PNEUMATIC ACTUATOR UNITARY PNEUMATICVALVE


MAINAIR

M

MAIN AIR

PILOT SIGNALFROMCONTROLLER

POSITIONER

BRANCHOUTPUT

M

MAINAIR

M

BRANCHOUTPUT

VALVE ACTUATOR WITHOUTPOSITIONER

VALVEACTUATOR

WITHPOSITIONER

A pneumatic actuator with onlyone line connected to it suchas the one illustrated on thebottom only has the branch linepressure available to close it.If a normally open valve springrange is 4 to 7 PSI (28 to 48 kPa)

and the branch line pressure is8 PSI (55 kPa) the valve shouldbe closed. If the water or steampressure is excessively high orif there is a piece of scale onthe valve seat the valve mightnot be fully closed at thatpressure. Using a positivepositioner can correct for thisby applying full main pressurewhich can be as high as 20 PSI(138 kPa) to fully close the valveregardless of the branch linepressure. Positive positionersare also used on larger valveassemblies to provide a higherlevel of control.

POSITIVE POSITIONERS


Transducers are used to take an electronicsignal from a controller and convert it toa pneumatic signal to modulate a valve ordamper actuator. This is frequently on onmixed air dampers since multiple largedamper motors can be connected to one

transducer. In this application a pneumaticheating coil valve is being controlled withan electronic-to-pneumatic transducer.Multiple transducers can be used for othercontrol loops such as face and bypassdampers, mixed air or a cooling coil.

MAIN AIR

M

DUCTSENSOR

DIRECTDIGITAL RESETCONTROLLER

OUTSIDEAIR

SENSORwith

SUNSHIELD

SUPPLYAIR

TEMP

OUTSIDEAIR

TEMP80 F

(27 C)70 F

(21 C)

160 F(71 C)

5 F(-15 C)

A

C

B

D

RESET SCHEDULE

HEATINGCOIL

PNEUMATIC COIL VALVE

ELECTRONIC-TO-PNEUMATICTRANSDUCER

ELECTRONIC-TO-PNEUMATIC TRANSDUCERS



V5852/53 AND V5862/63 UNITARY VALVES

INSTALLATION

NO TOOLS REQUIRED

REMOVE PROTECTIVECAP FROM VALVE

I N S TA L L VA LV EPOSITION INDICATORON MODULAT INGACTUATORS.

THREAD ACTUATORONTO VALVE BODY

1

2

3

4

CAP

V5852/53 and V5862/63 are two andthree-way valves available 1/2 (1.25 cm)

and 3/4 inch (1.9 cm) threaded and solderedwith a Cv up to 4.9. The three-way valvesare mixing. They are widely used onvariable air volume box applications sincethe noise level is very low. A valveassembly that is audible during theopening or closing cycle can be

unacceptable in an office environment.Actuators are available floating orproportional in electric or pneumatic. Aspecial tool is available that can be usedto install a replacement valve insertwithout draining the fluid from the piping.The protective cap that is supplied withthe valve can also be used to manuallyopen and close the valve.

MP958A PNEUMATICACTUATOR

V5862 TWO-WAYTHREADED VALVE

V5863THREE-WAYTHREADEDVALVE

M6410, M7410ACTUATOR

V5852 TWO-WAYSOLDERED VALVE


SUPPLYAIR

COIL

FILTER

FANOUTSIDEAIRDAMPERSNORMALLYCLOSED

RETURNAIR

OUTSIDEAIRINTAKE

CYCLE I - LOWLIMIT CONTROL OFSUPPLY AIRTEMPERATURE

CYCLE II - LOW LIMITCONTROL WITHINTERMEDIATEMIXED AIR POSITION

CYCLE III - MIXEDAIR CONTROLLERSET AT 55 DEG. F(13 C)

ROOMTEMPERATURE

ROOMTEMPERATURE

ROOMTEMPERATURE

Unit ventilators are widely used inschools, meeting rooms and otherhigh density zoned areas. They areavailable in many configurations withhot or chilled water coils, directexpansion refrigeration or electricheat. They are typically located onan outdoor wall to eliminate the needfor a ducted outside air intake yetthey can be located in ceilings orother locations.

Some typical controlsequences for uni tventilators from theHoneywell Engineeringmanual are illustratedbelow.

HEATINGVALVE

OUTDOORAIRDAMPER

LOW

HIGH

HEATINGVALVE

OUTDOORAIRDAMPER

LOW

HIGH

HEATINGVALVE

OUTDOORAIR DAMPERMODULATED

BASED ONMIXED AIR

TEMPERATURE

LOW

HIGH

UNIT VENTILATOR CONTROL SEQUENCES


OUTSIDEAIRDAMPERSNORMALLYCLOSED

SUPPLYAIR

CONTROLVALVE

DAMPERACTUATOR

RETURNAIR

OUTSIDEAIRINTAKE

HEATING COIL

FILTER

FAN

BLACK 24 VACRED 24 VAC

WHITE 2-10 VDC

BLUE 2-10 VDCRED 24 VAC

WHITE 24 VAC

WIRES

WIRES

HOT WATERSUPPLY

HOTWATER

RETURN

If the room becomes warm and the heatingvalve closesd the supply air temperaturecan drop too low and cause cold drafts inthe room. A supply air low limit preventsthis by opening the heating valve if thesupply temperature decreases below 55 or60 Deg. F (13 or 16 C). Once the supply airtemperature rises above the low limit

setpoint the control of the heating valve isswitched back to the room sensor. Thesupply air sensor can also be used tomodulate the mixed air dampers to provideeconomizer cooling if there is a outsideair sensor connected to the direct digitalcontrol panel.

ROOMTEMPERATURE

HEAT

VENT

77F (25C)

76F (24C)

75F (24C)

74F (23C)

73F (23C)

72F (22C)

71F (22C)

70F (21C)

69F (21C)

68F (20C)

24 VAC TRANSFORMER

ROOMSENSOR

DIRECT DIGITALCONTROLLER

LOW LIMITSENSOR

UNIT VENTILATOR DDC APPLICATION WITH V5852/53 AND V5862/63 VALVES


OUTSIDEAIRDAMPERSNORMALLYCLOSED

SUPPLYAIR

CONTROLVALVE

DAMPERACTUATOR

RETURNAIR

OUTSIDEAIRINTAKE

HEATING COIL

FILTER

FAN

TERMINALS

0 VAC COMMON

24 VAC

STAGE 1 2 TO 10 VDC

REHEAT STAGE 2 TO 10 VDC

NSB (NIGHT SETBACK)INPUT

BLACK 24 VACRED 24 VAC

WHITE 2-10 VDC

T7984C ELECTRONICROOM THERMOSTAT

24 VACTRANSFORMER

1

2

3

4

205860 MINIMUM POSITIONPOTENTIOMETER

BLUE 2-10 VDCRED 24 VAC

WHITE 24 VAC

WIRES

WIRES

HOTWATER

SUPPLY

HOTWATER

RETURN

In warmer climates heating is requiredonly for a short interval in the morning.A minimum position switch is used toensure adequate ventilation at all times.

This control sequence could only be usedin a climate where freezing temperaturesare not encountered.

ROOMTEMPERATURE

HEAT

VENT

77F (25C)

76F (24C)

75F (24C)

74F (23C)

73F (23C)

72F (22C)

71F (22C)

70F (21C)

69F (21C)

68F (20C)

UNIT VENTILATOR APPLICATION WITH V5852/53 AND V5862/63 VALVES

Notes

Notes

Notes

63-7035 P.H. 2-98

Home and Building ControlHoneywell Limited-Honeywell Limitée155 Gordon Baker RoadNorth York, OntarioM2H 3N7

Home and Building ControlHoneywell Inc.Honeywell PlazaP.O. Box 524Minneapolis MN 55408-0524

Printed in U.S.A. on recycled paper containing at least 10% post-consumer paper fibers.

Date post:	17-Nov-2014
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