Installation, Operation, and Maintenance Manual · ii ULTRA-SORB MODEL XV INSTALLATION, OPERATION,...

ULTRA-SORB® MODEL XV

Steam Dispersion Panel

Installation, Operation, and Maintenance Manual

READ AND SAVE THESE INSTRUCTIONS

For pressurized steam applications

ii ULTRA-SORB MODEL XV INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Table of contents

ATTENTION INSTALLERRead this manual before installing.Leave manual with product owner.

DriSteem technical support800-328-4447

WARNINGHot surface hazardSteam humidifi cation systems have extremely hot surfaces.

To avoid burns, allow humidifi er, steam pipes, and dispersion assemblies to cool before touching any part of the system.mc_071411_0753

MECHANICAL SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

INSTALLATION

Field assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Selecting the location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Mounting and support

Installation in a cold air stream . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Placement upstream from an elbow or duct split . . . . . . . . . . . . . . . . 8Installation above valuable equipment . . . . . . . . . . . . . . . . . . . . . . . 8Recirculation unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Panel support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Mounting in a duct . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Mounting in an air handler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Installation drawingsMounting in a duct . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Mounting in an air handler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Recommendations and steam inlets . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Controls

Float switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Temperature switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Heat exchanger time delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Optional header overflow P-trap water seal . . . . . . . . . . . . . . . . . . 14Control cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Wiring diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

OPERATION

Sequence of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Performance data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

MAINTENANCE

Strainer, traps, and valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Dispersion tubes and heat exchanger . . . . . . . . . . . . . . . . . . . . . . . . . 23Humidifier De-scaling Solution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24Replacement parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Back cover

1ULTRA-SORB MODEL XV INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Mechanical specifi cations

OM-7483mc_101410_0755

Top view

Elevation view

Blankside view

Header

Connectionsside view

A

A’

B’

C

D

B

FF

EG

H J K

L

Table 1-1: Ultra-sorb Model XV dimensions

Dimension Inches (mm)

A Unit width15" (380 mm) min, 147" (3735 mm) max, in 1" (25 mm) increments

A' Face width12" (305 mm) min, 144" (3660 mm) max, in 1" (25 mm) increments

B Unit height*21.75" (550 mm) min, 153.75" (3905 mm) max, in 1" (25 mm) increments

B' Face height12" (305 mm) min, 144" (3660 mm) max, in 1" (25 mm) increments

C Frame depth 7.2" (183 mm)

D Frame enclosure 3.9" (99 mm)

E Header enclosure 5.85" (149 mm)

F Mounting fl ange 1.5" (38 mm)

G Humidifi cation steam inlet (internal thread)

• 1" or 2" NPT (DN25 or DN50), determined by maximum steam capacity

• 3" (DN80) fl ange, for humidifi cation steam from STS humidifi er only

H Pressurized steam inlet (internal thread) 3/4" NPT (DN20)

J Float switch, optional header overfl ow/access port (internal thread)

1/2" NPT (DN15)

K Pressurized condensate outlet (internal thread) 3/4" NPT (DN20)

L Overall width

• 1" (DN25) connection, same as dimension A;

• 2" (DN50) connection, dimension A + 1" (dimension A + 25 mm)

• 3" (DN80) fl ange, dimension A + 6.5" (dimension A + 165 mm)

Control cabinet See Page 15.

* Panels with unit height more than 120" (3048 mm) have two-piece side fl anges and are shipped with brackets for easy fi eld assembly. Panels with unit height more than 98" (2490 mm) are shipped unassembled.

mc_091608_1500

Table 1-2: Ultra-sorb Model XV tube capacity*

lbs/hr kg/h

43 19.5

* If face height is <17" (432 mm), consult DriSteem or see DriCalc for the correct calculation.

FIGURE 1-1: ULTRA-SORB MODEL XV DIMENSIONS

MECHANICAL SPECIFICATIONS

2 ULTRA-SORB MODEL XV INSTALLATION, OPERATION, AND MAINTENANCE MANUAL

Field assembly

UNPACK THE DISPERSION ASSEMBLY AND LOOSE COMPONENTS• Ultra-sorb Model XV has High-Effi ciency Tubes. These dispersion tubes are

insulated with polyvinylidene fl uoride (PVDF) insulation, which provides up to an 85% reduction in wasted energy by signifi cantly reducing airstream heat gain and condensate production.

• Remove shipping materials from the dispersion assembly, being careful not to bump or scrape the white PVDF dispersion tube insulation.

• Panels taller than 60 inches (1500 mm) have wood packaging material for fl ange support during shipping. Remove this wood before installing the panel.

• Do not lay dispersion tubes (if shipped loose by request or by shipping necessity) across or under anything that could compress or damage the insulation. Compressing insulating material may reduce its R-value.

• Avoid bumping or snagging the PVDF insulation. Although PVDF is robust, rough handling can cause tears, which could negatively impact performance.

• Before start-up, remove the clear poly fi lm by tearing it along the perforation. Do not use a knife or sharp object to remove the poly fi lm. Do not remove the white PVDF insulation.

VERIFY THAT THE ORDER IS COMPLETE

Verify that all panel and piping components are included in the delivery. Check the packing list, and see the tables on Page 25.

CAUTION

Remove clear poly fi lm; do not remove white PVDF insulation.High-Effi ciency Tubes are sleeved in clear poly fi lm for protection during processing, shipping, and installation. Leave the clear poly fi lm on until installation is complete so the insulation stays clean.

Equally important, remove and discard the clear poly fi lm before start-up by tearing it along the perforations. Do not remove the white PVDF insulation.

• Keep fl ame away from the insulating material to avoid damage.

• PVDF is inherently resistant to UV light. Indirect, low-intensity UV-C light from germicidal lamps will not cause the insulating material to degrade.

• Do not tighten mounting clamps or fasteners to any part of the dispersion tube.mc_071211_1530

INSTALLATION


Field assembly

LAY OUT THE PANEL COMPONENTS

Orient the panel components on a large, fl at working surface.

ATTACH THE FLANGES

Guide the fl anges onto the threaded studs of the header assembly, and start the locknuts onto the threads fi nger-tight.

ATTACH THE TOP FRAME ASSEMBLY

Span the fl anges with the top frame assembly. Align the locating buttons on the fl anges and top frame, and insert screws.

TIGHTEN THE FLANGE LOCKNUTS

Torque the eight fl ange locknuts to 16 ft-lb (22 N-m) at 100 rpm maximum using a 7/16" deep-well socket.

INSTALL THE DISPERSION TUBES

Note: Do not remove the poly fi lm from the dispersion tubes until after the panel is installed.

Ensure that each dispersion tube has the seal and spring in place (see Figure 3-1). Push the dispersion tube plug end into the top frame hole to compress the spring. Seat the seal end in the corresponding header hole on the bottom. Rotate the dispersion tubes so the tubelets discharge steam perpendicular to the airstream. See Figure 9-2.

Table 3-1: Ultra-sorb Model XV components

Component Qty.

Header assembly 1

Dispersion tube Varies

Top frame assembly 1

Flanges 2

Screws 8

Flange locknuts 8

Note: These assembly instructions are for Ultra-sorb Model XV panels shipped unassembled by request or as required. Panels with overall height more than 98" (2490 mm) are shipped unassembled.

Header assembly

Flange locknut

Screw

FlangeOM-7484

Top frame assembly

SpringPlug

Ring

Seal

Insu

latio

n

Dispersion tube assembly

INSTALLATION

FIGURE 3-1: ULTRA-SORB MODEL XV COMPONENTS


Piping

OM-7656bFrom pressurized steam source

Electric modulating steam valve

To condensate return main

On-off valve

Inletstrainer

F&T trap


Standard trap piping Ultra-sorb Model XV steam dispersion panel

Note: Dashed lines indicate provided by installer.

Float switch

14" (355 mm) F&T trap clearance

F&T trap

mc_051811_1025

OM-7536

Standard trap piping

mc_101410_0800

From pressurized steam source

Pneumatic modulating steam valve


On-off valve

Inletstrainer

F&T trap


Ultra-sorb Model XV steam dispersion panel


Temperature switch sensor (install as close to outlet as possible)

F&T trap

See alternate trap piping for minimum clearance in Figure 4-3.

INSTALLATION

Install inlet strainer (same size as valve, or larger than valve) within 3' (1 m) of Ultra-sorb

Valve

From pressurizedsteam source

DC-1097mc_101410_0810

14"(355 mm) F&T trap clearance

FIGURE 4-1: ULTRA-SORB MODEL XV PIPING COMPONENTS (WITH FLOAT SWITCH), PRESSURIZED STEAM SOURCE

FIGURE 4-2: ULTRA-SORB STRAINER

FIGURE 4-3: ULTRA-SORB MODEL XV PIPING COMPONENTS (WITH TEMPERATURE SWITCH), PRESSURIZED STEAM SOURCE


INSTALLATION


DM-11136b

OM-7654-components

Connection end of header(see inset below)

Connection end of header

Humidifi cation steam from STS humidifi er

Pressurized condensate to return main

On-off valve

Inlet strainer

F&T trap


Float switch

F&T trap


Dispersion tube

Header

From pressurizedsteam source

Electric steam valve

Insulated copper steam supply tubing

STS humidifi er

Open drain(temper to local code)

Drane-kooler™

Cold fi ll water

Isolation valve (by others)

Pressurized steam to heat exchanger

Note: Tubing union shown at steam connection. For STS humidifi er, connection may also be 3" (DN80) fl ange.

Steam to heat exchanger from pressurized steam source,humidifi cation steam from STS humidifi er

mc_060911_1230

Piping

OM-7655-sts

Alternate trap piping for minimal clearance


FIGURE 5-1: ULTRA-SORB MODEL XV PIPING WITH STS HUMIDIFIER


Outside air

Relief air

Preheat coil

Motorized air dampers

Supply airfl ow

Filters

Economizercontrol device

Heating coilCooling coil 8' to 12' (2.4 to 3.7 m)

Duct high limit humidity control for dispersion locations A, BAirfl ow proving switch

Airfl ow proving switch

Duct high limit humidity control for dispersion location C

Return airfl ow

8' to 12' (2.4 to 3.7 m)

3' to 5' (1 to 1.5 m)

Fan

ABD

C

Exterior building wall

DC-1081mc_092507_1530

Selecting the location

INSTALLATION

FIGURE 6-1: PLACING A DISPERSION ASSEMBLY IN AN AIR HANDLING UNIT


• Install the Ultra-sorb panel in a location where discharged water vapor will be absorbed by the airstream.

• In general, place the Ultra-sorb panel where the air temperature is capable of absorbing discharged steam without causing condensation at or after the unit. This will normally be downstream of the heating coil where the air is warmest.

• Do not place the Ultra-sorb panel in an outside air intake unless the air is tempered with a preheat coil.

• Do not place the Ultra-sorb panel near the entrance of a high-effi ciency fi lter. The fi lter will remove visible moisture and become waterlogged. See the Caution “Installing Ultra-sorb upstream from fi lter media” on Page 21.

• Do not place the Ultra-sorb panel where discharged visible mist will impinge directly on a metal surface.

mc_071111_1710

PLACEMENT IN AN AIR HANDLING UNIT• Location A is the best choice. Installing downstream of heating and cooling

coils provides laminar fl ow through the dispersion unit; plus, the heated air provides an environment for best absorption.

• Location B is the second-best choice. However, in change-over periods, the cooling coil will eliminate some moisture for humidifi cation.

• Location C is the third-best choice. Air leaving a fan is usually very turbulent and can cause vapor to not absorb at the expected non-wetting distance. Allow for more distance if installing downstream of a fan.

• Location D is the poorest choice. The cooler air at this location requires an increased non-wetting distance.

mc_062111_0715

Selecting the location

INSTALLATION

DETERMINE HUMIDIFIER PLACEMENT

Dispersed steam must be absorbed into the airfl ow before it comes in contact with duct elbows, fans, vanes, fi lters, or any object that can cause condensation and dripping.


Mounting and support

Elbow Duct

Airfl ow

Airfl ow

Ultra-sorb

Ultra-sorb

Duct split

Non-wetting distance

OM-178

INSTALLATION

Ultra-sorb

Airfl ow

Drip pan

Ceiling line

Vapor absorption area

* This length of duct should have sealed seams and should be at least three times the height of the Ultra-sorb panel.

OM-198

2" (50 mm)

OM-197

Coldair fl ow

Ultra-sorb

Extended trails of fog may develop

High limit duct humidistat 10' to 15' (3 to 4.5 m) downstream from Ultra-sorb

mc_101410_0955

mc_052411_0830

INSTALLATION IN A COLD AIR STREAM

When a humidifi er is installed in a duct that will carry cold air, determine the dew point temperature. If the psychrometric chart reveals that saturation may occur, protection should be provided. A high-limit humidistat or thermostat set to cut off the humidifi er at a safe temperature can be used for this purpose. See Figure 8-1.

PLACEMENT UPSTREAM FROM AN ELBOW OR DUCT SPLIT

Due to Ultra-sorb's rapid steam absorption performance, installation upstream from elbows or duct splits can be done with confi dence. See Figure 8-2.

INSTALLATION ABOVE VALUABLE EQUIPMENT

Water piping and humidifi ers should not be installed above expensive equipment. A condensing or leaking water pipe or other accidental water spillage could cause serious damage to the equipment below. When such an installation cannot be avoided, install a galvanized drip pan under the humidifi er piping, valve, etc. to catch and drain away unintended water. See Figure 8-3.

See also “Optional header overfl ow P-trap water seal” on Page 14.

RECIRCULATION UNIT

In applications where no duct system exists, or if the air is too cool for proper humidity absorption, a recirculation fan can be used. The fan circulates room temperature air across the humidifi er and discharges humidifi ed air into the space. Select the air discharge point carefully to avoid condensation on building or equipment surfaces. See Figure 8-4.

PANEL SUPPORT

The duct or air handler section and Ultra-sorb panel must be properly supported to carry the weight of the assembly. The weight of the piping must be supported by the building structure rather than by the Ultra-sorb unit. Otherwise, the weight may impose stress on the connections, causing them to fracture and leak. mc_071311_1540

Ceiling line

Ultra-sorb

Airfl ow

Blower

Vapor absorptionarea

*

* This duct length should have sealed seams and should be at least three times the published non-wetting distance.

OM-179mc_071311_1545

Pipe to drain size as required

FIGURE 8-1: INSTALLATION IN A COLD AIR STREAM

FIGURE 8-4: RECIRCULATION UNIT

FIGURE 8-2: UPSTREAM PLACEMENT

FIGURE 8-3: INSTALLATION ABOVE SENSITIVE AREAS


Mounting and support

Dispersion tube orientationVerify that the steam discharge tubelets are perpendicular to the airstream (see Figure 9-1). The spring-loaded dispersion tubes easily rotate for proper orientation.

Airfl ow

Tubelet Dispersion tube

Airfl owOM-150a

Duct smoke detectorDo not install a duct smoke detector downstream from the Ultra-sorb panel. If downstream installation is required, install it far enough from the Ultra-sorb panel to avoid false alarms.

OM-7482

Top outside corners

Four inside corners

Perimeter of top frame along duct fl ange

Both sides of cover seam

mc_101410_0845

INSTALLATION

Ultra-sorb Model XV heat exchanger must use steam from pressurized steam source only. Humidifi cation steam can be from pressurized steam source or STS steam-to-steam humidifi er.

Ultra-sorb Model XV must be installed in horizontal airfl ows only.

To avoid puncturing the header, screws and drill bits must not penetrate more than 3/4" (20 mm) into the header assembly. See Figure 10-1 for allowable drill and screw locations.

MOUNTING IN A DUCT

Mounting fl anges on both sides of the unit and the header and frame can be used as mounting surfaces (see Figure 10-1). A matching fl ange or metal frame is required on the ductwork for connection to the Ultra-sorb fl anges. The recommended fastener is a #12 self-drilling and tapping screw 3/4" (20 mm) long, spacing not to exceed 12" (305 mm). If an angle-iron frame is provided on the duct section, a longer screw may be required.

MOUNTING IN AN AIR HANDLER

Metal support frames should be anchored to the air handler casing. Recommended fasteners for mounting the Ultra-sorb to a metal support frame are 1/4 - 20 nuts and bolts or #12 self drilling and tapping screws. Due to possible forces exerted on this application, fastener spacing should not exceed of 6" (150 mm).mc_101410_0935

Ultra-sorb panels that penetrate a duct section must be sealed with HVAC caulking or a similar weather sealant to prevent air leakage.

FIGURE 9-2: PREVENTING DUCT STATIC PRESSURE LOSS

FIGURE 9-1: DISPERSION TUBE ORIENTATION


Installation drawings:

INSTALLATION

OM-7490

Attach duct fl ange to top frame assembly

1/2" (13 mm)

Attach duct fl anges to 1.5" (38 mm) mounting fl anges

Attach duct fl ange to header assembly

Screws OK3/4" (20 mm) max length (See Note 7)

Screws OK

No screws

Notes: 1. See Figures 12-1 and 12-2 for trap clearance alternatives.2. Steam supply line to unit and piping are not included.3. Dispersion tubes are available on 3", 6", 9" and 12" (15, 150, 225, and 300 mm) centers4. Ultra-sorb humidifi ers will be assembled, crated, and shipped intact in all sizes up to 98" (2490 mm) overall height. Any Ultra-sorb can be shipped

unassembled by request, requiring fi eld assembly.5. Standard sizes are 12" x 12" up to 144" x 144" in 1" increments (305 x 305 mm up to 3660 x 3660 mm in 25 mm increments). Larger sizes are

available.6. Install the panel level. If slope cannot be avoided, ensure that the slope is toward the drain end of the panel.7. To avoid damaging the header and heat exchanger, drill or screw through the header assembly only where shown.

Screws and drill bits must not penetrate more than 3/4" (20 mm) into the header assembly. Recommended fasteners for mounting the Ultra-sorb to a metal support frame are 1/4–20 nuts and bolts or #12 self drilling and tapping screws.

No screws through bottom of header assembly

No screws through top of header assembly

No screws through end of header assembly

No screws through end of header assembly

Scre

ws

OK

Scre

ws

OK

mc_101310_1030

Mounting in a duct

FIGURE 10-1: ULTRA-SORB MODEL XV IN A DUCT (HORIZONTAL AIRFLOW ONLY)

1/2" (13 mm)


Notes: 1. Dashed lines indicate provided by installer.2. See Figures 12-1 and 12-2 for trap clearance alternatives.3. Steam supply line to unit and piping are not included.4. Dispersion tubes are available on 3", 6", 9" and 12" (15, 150, 225, and 300 mm) centers.5. Ultra-sorb humidifi ers will be assembled, crated, and shipped intact in all sizes up to 98" (2490 mm) overall height. Any Ultra-sorb can be shipped

unassembled by request, requiring fi eld assembly.6. Standard sizes are 12" x 12" up to 144" x 144" in 1" increments (305 x 305 mm up to 3660 x 3660 mm in 25 mm increments).

Larger sizes are available.7. Heat exchanger requires 5 psig (35 kPa) minimum steam pressure.

Mounting in an air handling unit• Metal support frames should be anchored to the air handler casing. • To avoid damaging the header and heat exchanger, drill or screw through the header assembly only where shown in Figure 10-1. Screws and drill

bits must not penetrate more than 3/4" (20 mm) into the header assembly. • Recommended fasteners for mounting the Ultra-sorb to a metal support frame are 1/4–20 nuts and bolts or #12 self drilling and tapping screws.• Due to possible forces exerted on this application, DriSteem recommends fastener spacing not to exceed 6" (150 mm).• When Ultra-sorb Model XV is installed in bypass air applications additional bracing is advised for the unsupported side(s).• Install the panel level. If slope cannot be avoided, ensure that the slope is toward the drain end of the panel.


Humidifi cation steam inlet:• 1" or 2" NPT

(DN25 or DN50), determined by maximum steam capacity

• 3" (DN80) fl ange, STS humidifi er only

Pressurized boiler steam inlet(3/4" NPT, internal thread)

Pressurized condensate outlet(3/4" NPT, internal thread)

Float switch, optional header overfl ow/access port (1/2" NPT, internal thread)

Tubelets perpendicular to airfl ow

Humidifi cation steam to header

AHU wall

Pressurized condensate out to return mainSteam from pressurized steam source to heat exchanger

Header

CAUTIONUse a backup wrenchUse a backup wrench on all plumbing connections. Failure to use a backup wrench could cause damage to the Ultra-sorb Model XV.

mc_101310_1020

INSTALLATION

Mounting in an air handlerInstallation drawings:

FIGURE 11-1: ULTRA-SORB MODEL XV IN AN AIR HANDLER (HORIZONTAL AIRFLOW ONLY)

OM-7657a

Coil height

AHUheight

Coil width

AHU width


Recommendations and steam inlets


F&T trap

Standard trap piping


mc_051811_1025

Alternate trap piping for minimal clearance


OM-7655mc_051811_1026



RECOMMENDATIONS Trapping

• Low pressure, up to 15 psi (103 kPa) — fl oat and thermostatic (F&T) trap (Figures 12-1 and 12-2)

• High pressure, more than 15 psi (103 kPa) — inverted bucket trap (Figure 12-3)

• Lifting condensate — inverted bucket trap (Figure 12-3)

Driest steam

To ensure driest steam, take humidifi er steam off the top of the steam main (not the side or bottom).

Airfl ow proving switch

An airfl ow proving switch is recommended to prevent humidifi cation steam from entering the header if air is not moving in the duct.

High limit humidistat

To prevent over saturation when duct air is cooler than 70 °F (21 °C), a high limit (duct mounted) humidistat is recommended (Figure 6-1). Mount it 10' to 15' (3 to 4.5 m) downstream from the Ultra-sorb panel, and set it at 80 to 90% RH.

HEAT EXCHANGER PRESSURIZED BOILER STEAM INLET

Steam pressure for steam entering the heat exchanger must be least 5 psig (35 kPa) to vaporize condensate in the header.

HUMIDIFICATION STEAM INLET

Humidifi cation steam entering the header can be from a modulating steam valve or from an STS humidifi er. See interconnecting piping requirements for STS humidifi er applications in Table 13-1.mc_061511_1235

INSTALLATION

Steam valve

DM-11554mc_062111_0900

Elevated condensate return main

Strainer

Inverted bucket trap

Check valve (by others) Typical stand (by others)Housekeeping pad / AHU rail

Integral heat exchanger• Ultra-sorb Model XV employs an integral

heat exchanger to pressurize and lift condensate up to 12" per psi (300 mm per 6.9 kPa) of steam pressure.

• Steam pressure entering the heat exchanger must be at least 5 psig (35 kPa).

• Condensate may be piped to the condensate return main.

OM-7656_close-up

FIGURE 12-3: LIFTING CONDENSATE WITH ULTRA-SORB MODEL XV

FIGURE 12-1: ULTRA-SORB MODEL XV F&T TRAP DIMENSIONS

FIGURE 12-2: ULTRA-SORB MODEL XV ALTERNATE PIPING


Controls

FLOAT SWITCH

Under normal conditions the fl oat switch (for use with an electric steam valve) in the Ultra-sorb Model XV header is closed, and the modulating steam valve or STS humidifi er operates according to the humidifi cation control system’s call for humidity.

• See “Float switch, for use with electric steam valve” on Page 19.

• See fl oat switch instructions in Step 1 on Page 24. These instructions must be followed for the fl oat switch to function properly.

• See the wiring diagram in Figure 16-1.mc_051711_1120

Table 13-1: Maximum steam carrying capacity and length of interconnecting steam tubing 1

Copper or stainless steel tubing, nonpressurized steam from STS humidifi er

Tube size Maximum capacity 2 Maximumdeveloped length 3

inches DN lbs/hr kg/h ft m

2 50 220 100 30 9

3 4 80 4 450 204 80 24

1. Based on total maximum pressure drop in tubing of 5" wc (1250 Pa).2. Insulate tubing to minimize loss of capacity and effi ciency.3. Developed length of tubing equals measured length plus 50% of measured length, to account

for fi ttings. Longer tubing lengths are possible at capacities lower than listed maximums. Consult factory. 4. Requires fl ange connection.mc_091410_1050-XV

INSTALLATION

TEMPERATURE SWITCH

Install the temperature switch (Figure 19-1) to prevent the header from fl ooding with condensate if the heat exchanger cools, such as if the condensate return main becomes fl ooded or the trap fails closed. DriSteem's temperature switch is a temperature-actuated make-break switch. The temperature at which it switches is adjustable and should be set at 210 °F (99 °C).

• Install the sensing element of the device in the condensate return piping between the Ultra-sorb heat exchanger outlet and the inlet to the steam trap, as shown in Figure 19-1. Include a tee with a 1/2" (DN15) pipe thread opening to receive the sensing element. When steam surrounds the sensing element, the switch will “make,” allowing the humidifi er valve to open.

• Install all wiring according to national and local electrical codes, and size transformer VA to load VA.

• When using a temperature switch to control the on-off heat exchanger valve, follow the special wiring instructions supplied with the modulating humidifi cation-steam control valve.

• See the wiring diagram in Figure 17-1.mc_100610_1035


Controls

INSTALLATION

Note: After the water seal, run a 1½" (DN40) drain line to an open drain with a 1" (25 mm) air gap.

OM-7493

Optional P-trap overfl ow water seal (if no fl oat switch)


1.25" (32 mm) rise

OM-7OM-7493493

10.75" (273 mm)

Fill cap

mc_101410_0811

OPTIONAL HEADER OVERFLOW P-TRAP WATER SEAL

Ultra-sorb Model XV is designed to vaporize the condensate generated in a properly designed, installed, operated, and maintained system. An optional, fail-safe header overfl ow installation (Figure 14-1) is recommended if any of the following are true:

• No fl oat switch.

• Operating parameters exceed design criteria.

• Boiler chemicals are causing heavy material deposition on heat exchanger.

• System overfl ow prevention is critical.

• Application requires the tallest dispersion tubes, the closest tube spacing, and the lowest allowable heat exchanger steam pressures.

• Operator intervention could result in improper system settings.

Before operating the Ultra-sorb, and after extended shutdown periods, prime the P-trap with about 1 cup (200 ml) of water. During normal operation, little or no condensate is available to the overfl ow. As such, a water seal cannot be assured via condensate alone. Without a water seal, the header overfl ow P-trap, if one is installed, might allow air to be drawn into the duct or steam to blow through the P-trap.

Do not feed the P-trap with a water source to maintain prime, as this will force water into the header.mc_052311_1135

HEAT EXCHANGER TIME DELAY

Systems that stop humidifying for extended periods of time may have two reasons for a time delay: To conserve energy, and to dry the header and remove standing water that might allow for microbe growth.

To dry the header, pressurized steam can be set to fl ow through the heat exchanger for a set amount of time after humidifi cation steam stops. This time delay can be set through the building management system (BMS) or confi gured independent from the BMS. See the wiring diagram included with the on-off valve.

• Setting the heat exchanger to remain on for at least 1/2 hour after humidifying stops will be adequate time to ensure complete dry-out of the dispersion system.

• For systems that run constantly (all day, every day, all year), there is no need to set a time delay.

• See the wiring diagrams on Pages 16 and 17.mc_100610_1036

FIGURE 14-1: ULTRA-SORB MODEL XV OPTIONAL HEADER OVERFLOW P-TRAP WATER SEAL

12" (305 mm) seal


12" (305 mm)

12" (305 mm)

6" (152 mm)

OM-7533

Notes:• Electrical power requirements: 120 VAC, 0.2 Amps, or 240 VAC, 0.1

Amps• Components are 24 VAC, powered by a transformer in the control

cabinet. A pneumatic interface is available for systems ordered with pneumatic control.

• Maximum distance from control cabinet to Ultra-sorb Model XV is 50’ (15 m).

See control cabinet fi eld wiring diagrams on Pages 16 and 17.

Controls

mc_101410_0820

INSTALLATION

FIGURE 15-1: ULTRA-SORB MODEL XV CONTROL CABINET


Wiring diagrams

INSTALLATION

XV-1

External connections

FIGURE 16-1: ULTRA-SORB MODEL XV CONTROL CABINET FIELD WIRING, ELECTRIC MODULATING STEAM VALVE


Wiring diagrams

INSTALLATION

External connections

Pneumatic supply by others, 0-20 psi (0-138 kPa)

mc_052010_0600DISP-3-C

FIGURE 17-1: ULTRA-SORB MODEL XV CONTROL CABINET FIELD WIRING, PNEUMATIC MODULATING STEAM VALVE


Sequence of operation

OM-7656a




1 2

65a

5b

Ultra-sorb Model XV panel Dispersion tube

OM-7481

3

4

4a 4b

4c

4d

mc_033010_1150

Note: Dashed lines indicate provided by installer.A

F&T trap

Inletstrainer

Electric modulating steam valve

2

OM-7654-inlets

Humidifi cation steam from STS steam-to-steam humidifi er



OPERATION

1. HEAT EXCHANGER ON-OFF SOLENOID VALVE See Figure 18-2.

Upon a call for humidity, the heat exchanger on-off solenoid valve opens, and pressurized steam fl ows through the heat exchanger, out the trap (A), and to the condensate return main.

2. STEAM SUPPLY INLET Humidifi cation steam from the modulating steam valve (Figure 18-2) or STS

humidifi er (Figure 18-1) passes through the steam supply inlet into the Ultra-sorb header.

3. HEADER Humidifi cation steam fl ows through the insulated header, up the High-

Effi ciency Tubes, and into the airstream.

4. HIGH-EFFICIENCY TUBES Calibrated thermal-resin tubelets (4a) allow only the driest steam to exit

into the airstream. Dispersion tube insulation (4b) provides up to an 85% reduction in wasted energy by signifi cantly reducing airstream heat gain and condensate production. Dispersion tube spring-ends (4c) provide rapid tube removal and installation while ensuring tight seals (4d) between the header and tubes.

FIGURE 18-1: ULTRA-SORB MODEL XV WITH STS; STEAM INLETS DETAILED

FIGURE 18-2: ULTRA-SORB MODEL XV COMPONENTS, PRESSURIZED STEAM SOURCE


Sequence of operation

OPERATION

5. HEAT EXCHANGER Pressurized steam enters the heat exchanger inlet (5a). The heat exchanger

vaporizes dispersion-generated condensate, while pressurized condensate (5b) returns to the boiler via the condensate return main.

6. FLOAT SWITCH, FOR USE WITH ELECTRIC STEAM VALVE Under normal conditions the fl oat switch in the Ultra-sorb Model XV header

is closed, and the modulating steam valve or STS humidifi er operates according to the humidifi cation control system’s call for humidity.

• The fl oat switch opens in the unlikely event of a fl ooded header, and the electric modulating steam valve or STS humidifi er stops the supply of humidifi cation steam to the header. This prevents further header fl ooding.

• After the header condensate evaporates, the fl oat switch closes, allowing humidifi cation steam to fl ow when there is a call for humidity.

The fl oat switch port can be used for an optional header overfl ow P-trap water seal (if fl oat switch is not used).

TEMPERATURE SWITCH SENSOR (NOT SHOWN)

The temperature switch circuit’s sequence of operation is a safety sequence: In the unlikely event that excessive header condensate cools the heat exchanger while humidifying, the temperature sensor drops below operating temperature, and the switch opens. This signals the modulating steam valve or STS humidifi er control system to stop humidifi cation steam from entering the header and prevents further condensate production. After the header condensate evaporates, the switch closes, allowing humidifi cation steam to fl ow when there is a call for humidity.

See the temperature switch sensor in Figure 19-1.

TIME DELAY RELAY (NOT SHOWN)

Upon a drop in the call for humidity, the time delay relay keeps the heat exchanger valve open for 30 minutes (or as fi eld set), allowing steam to fl ow through the heat exchanger and dry out the header. This prevents microbial growth during prolonged non-humidifying periods.

CONTROL CABINET (NOT SHOWN)

The control cabinet houses the components required to utilize the fl oat switch, time delay relay, and heat exchanger on-off solenoid valve.

See the control cabinet in Figure 15-1.mc_033010_1155

OM-7536


Temperature switch sensor (install as close to outlet as possible)

FIGURE 19-1: TEMPERATURE SWITCH SENSOR


Start-up

1. Prime the header overflow P-trap, if installed. Ensure that it is installed as recommended in “Optional header overflow P-trap water seal” on Page 14.

2. Turn on steam to the heat exchanger. Inspect connections for piping leaks.

3. Turn on the modulating steam valve, and check for piping leaks.

4. Ensure that the traps are operating.

5. Check the dispersion tubes for leaks. Note: Spitting from the seal (bottom) end of a dispersion tube could be

caused by a missing seal (4d). See Figure 18-2.

6. Ensure that the dispersion tubes are oriented with the tubelets at a right angle to the airflow. See Figure 9-2.

7. Check for any other leaks from header connections.

8. If a temperature switch is installed, with both heat exchanger and humidification steam turned on, turn off steam to the heat exchanger. Make sure the temperature switch turns off the modulating steam valve to stop humidification steam from entering the dispersion assembly. Depending on the installation, it may take several minutes for the steam valve to close

9. Heat exchanger operation: • Ensure operating steam pressure is at least 5 psig (35 kPa).

• Ensure on-off and shut-off delay (if using shut-off delay) conditions are working as intended.

OPERATION

CAUTION

Remove clear poly fi lm; do not remove white PVDF insulation.High-Effi ciency Tubes are sleeved in clear poly fi lm for protection during processing, shipping, andinstallation. Tear the clear poly fi lm along the perforations, and remove and discard it before start-up


Performance data

Table 21-2:Ultra-sorb air pressure loss

Duct air velocity(55 ˚F [13 ˚C] at sea level)

Tube spacing

3" (75 mm) 6" (150 mm)

fpm m/s wc Pa wc Pa

500 2.54 0.033 8.3 0.005 1.3

1000 5.08 0.121 30.2 0.020 5.1

1500 7.62 0.237 59.2 0.046 11.5

Notes: • Ultra-sorb panels with 9" (225 mm) or 12" (300 mm) tube spacings have no measurable air

pressure loss.• Use DriSteem’s DriCalc sizing and selection software to calculate your specifi c air pressure loss.mc_101410_0846

CAUTION Installing Ultra-sorb upstream from fi lter mediaNon-wetting distances described here do not apply when installing an Ultra-sorb panel upstream from fi lter media. If you must install upstream from fi lter media, consult DriSteem or your local DriSteem representative for recommendations.mc_071211_1505

OPERATION

NON-WETTING DISTANCE

Non-wetting distance is the dimension downstream from the leaving side of the steam dispersion assembly to the point where wetting will not occur, although wisps of steam may be present. This distance was calculated during humidifi cation system design and is dependent on several application parameters. To determine your dispersion assembly’s non-wetting distance, consult your system’s design engineer or project documentation. Non-wetting distance can also be calculated using DriSteem’s DriCalc sizing and selection software, available at www. dristeem.com. Note that your current design conditions may vary from conditions used for system design.

• Note that the rise in RH (ΔRH) between entering and leaving air has a direct bearing on the non-wetting distance. As the ΔRH increases, more vapor needs to be dispersed into the air; thus, the non-wetting distance increases.

• Uneven airfl ow over the Ultra-sorb panel cross-section may result in nonuniform mixing of steam with air, which may adversely affect absorption distance.

• A small but measurable amount of duct air pressure loss will be present downstream from the Ultra-sorb panel, depending on air density, velocity, and tube spacing. See Table 21-2.

Table 21-1: Ultra-sorb Model XV tube capacity*

lbs/hr kg/h

43 19.5

* If face height is <17" (432 mm), consult DriSteem or see DriCalc for the correct calculation.


Strainer, traps, and valves

STRAINER

Inspect at least twice during the fi rst year. If fouled, inspect it more frequently.

STEAM TRAPS

At least twice a year verify that the steam traps are functioning properly. A blocked steam trap is room temperature. A “blowing” steam trap is hot and noisy, and the discharge pipe from it is hot for 30 feet (9 m). A properly operating steam trap is hot and makes noise at intervals, and the discharge pipe is progressively cooler beginning at the trap.

HEADER OVERFLOW P-TRAP WATER SEAL

If this option is used (see “Optional header overfl ow P-trap water seal” on Page 14), prime the P-trap with about 8 ounces (about 200 ml) of water whenever the panel has been idle for 90 days or more.

VALVES• Pneumatic: Inspect annually to be sure the valve tightly closes off steam,

the stem packing is not leaking steam, and the actuator diaphragm is not leaking air.

• Electric modulating: Inspect annually to be sure the valve operates freely and closes off steam tightly and the stem packing is not leaking.

• Solenoid type: Inspect annually to verify proper functioning with steam-tight shut off.

MAINTENANCE


Dispersion tubes and heat exchanger

DISPERSION TUBES• If steam or condensate is evident at the sealing surface, replace the seal.

• Inspect insulating material for tears; repair with Insulating Material Repair Kit (available from your local DriSteem representative) before dispersing steam or moving air through the air handler to prevent further damage. This kit uses tested and proven PVDF as repair material; do not use other adhesives or repair methods.

• Inspect insulating material for dirt and smudges; gently clean with damp cloth and soapy water or diluted nontoxic, biodegradable cleaner/degreaser. Do not clean insulating material with a pressure washer; direct spray could cause damage.

HEAT EXCHANGER

Environmental conditions may require periodic heat exchanger cleaning. After 2000 hours of operation, remove a dispersion tube and check whether the heat exchanger is coated with material deposits. Use of boiler chemicals that result in material deposits on the heat exchanger may require more frequent inspection and cleaning to maintain proper heat exchanger operation and avoid header fl ooding.

If the heat exchanger is coated with material deposits, see “Humidifi er De-scaling Solution” on Page 24.

MAINTENANCE


Pour water into header through dispersion tube hole to submerge heat exchanger before adding Humidifi er De-scaling Solution.

Heat exchanger

OM-7492

Fill water

Material deposits can be removed from the heat exchanger with DriSteem’s Humidifi er De-scaling Solution, available for purchase from your DriSteem representative or distributor. It is the only cleaner/de-scaler approved for use with DriSteem humidifi ers. Use of other cleaners/de-scalers may void your DriSteem warranty.

The Usage Instructions shipped with the DriSteem Humidifi er De-scaling Solution contain important handling, mixing, timing, and pH testing information.

The following additional instructions are for Ultra-sorb Model XV:

1. If a float switch is installed: – Before removing fl oat switch, note position of orientation mark (see

Figure 24-1). To ensure proper function, mark must be in same position when fl oat switch is re-installed.

– Remove fl oat switch; the 1/2" NPT (DN15) port will be used to drain header.

2. Install a 1/2" NPT thread drain hose in 1/2" NPT (DN15) port. After making sure hose can reach a bucket or drain, elevate end of hose well above connection.

3. Remove a dispersion tube, and add water to header to submerge heat exchanger (see Figure 24-2).

4. Add 10 ounces of Humidifier De-scaling Solution per foot of header length (30 ml of solution per 300 mm of header length). A 12-foot (3660 mm) header requires about 1 gallon (3.8 litres) of solution.

5. After performing de-scaling procedure as described in Usage Instructions and before resuming operation: Flush and drain header four times to thoroughly remove Humidifier De-scaling Solution from system.

6. Re-install float switch, if used, in port.

Humidifi er De-scaling Solution

WARNINGHumidifi er De-scaling Solution is corrosive.Read and follow all warnings and instructions shipped with the DriSteem Humidifi er De-scaling Solution.

MAINTENANCE

See DriSteem’s Humidifi er De-scaling Solution on the Accessories and options page (under Products) on our website: www.dristeem.com

Connection endof header Check position of

orientation mark before removing fl oat switch. Mark must be in same position after re-installation for fl oat switch to function properly.

Orientation mark on fl oat switch

mc_063011_0945

FIGURE 24-1: ORIENTATION MARK ON FLOAT SWITCH

FIGURE 24-2: HEADER CROSS SECTION


Replacement parts

OM-7484b

Table 25-2:Ultra-sorb Model XV replacement components

Description Part No.

Electric modulating steam valve consult factory

Pneumatic modulating steam valve consult factory

On-off valve body 501750-001

On-off valve coil 501700-002

Electric temperature switch 400260-001

Pneumatic temperature switch 307076

Inlet strainer consult factory

Steam trap consult factory

Time delay relay 407900-020

Time delay base 407900-016

Float switch 408420-004

mc_101410_0841

Table 25-1:Ultra-sorb Model XV replacement parts

No. Description Part No.

1 Screws, frame (package of 4) 191170-010

2 O-ring, square 1.35" ID (package of 10) 191170-015

3Ring, tube end, 1.5" (package of 1) 207010-001

Ring, tube end, 1.5" (package of 5) 191170-020

4Spring, compression, SST (package of 1) 501460-001

Spring, compression, SST (package of 5) 191170-025

5Plug, tube end, 1.5" (package of 1) 310260

Plug, tube end, 1.5" (package of 5) 191170-030

6 Dispersion tube assembly consult factory

7 Flange, side consult factory

8 Frame assembly, top consult factory

9 Header assembly consult factory

10 Nut, 1/4-20 (package of 4) 191170-035

11 HVAC sealant for duct section applications (not shown) consult factory

mc_101410_0840

5

1

4

32

10

7

8

7

9

6

mc_101410_0835

MAINTENANCE

FIGURE 25-1: ULTRA-SORB MODEL XV REPLACEMENT PARTS


Troubleshooting

Table 26-1: Ultra-sorb Model XV troubleshooting guide

Problem Possible cause Action

Humidifi er discharges water in duct

• Missing or torn seal • Replace seal.

• Dispersion tube not properly installed • Ensure proper installation. See Figure 3-1.

• Humidifi cation steam is exceeding capacity per tube

• Ensure humidifi cation is 43 lbs/hr (19.5 kg/h) per tube or less..Note: For panels with a face height less than 17" (430 mm), contact

DriSteem for assistance.

• Steam main overloaded with water due to boiler discharging water with steam (priming)

• Locate cause of priming and correct.

• Steam trap not draining properly • Replace, repair, or clean trap as required.• If condensate return main is overloaded, fi nd an alternative method for

draining.

• Humidifi er improperly piped • Correct piping as shown on Pages 4, 5, and 12.

• Surges of condensate in steam supply due to condensate collecting at low, undripped point in steam main

• Install drips and steam traps as required. See “Trapping” on Page 12.

• Inadequate steam trap capacity • Replace with larger trap.

• Pressurized condensate is being lifted too high • See “Integral heat exchanger” on Page 12.

• Heat exchanger is caked or dirty • Flush header. See “Heat exchanger” on Page 23.

• Condensate collecting in header • Increase steam pressure through heat exchanger.• See “Optional header overfl ow P-trap water seal” on Page 14.

• On-off valve upstream from heat exchanger malfunctioning or stuck in the OFF position

• Replace, repair, or clean valve as required.

• Temperature switch downstream from heat exchanger is malfunctioning

• Replace or repair.

• Float switch in header is malfunctioning • Replace or repair.See fl oat switch instructions in Step 1 on Page 24.

Humidity exceeds setting of humidistat

• Automatic valve not fully closing • Foreign matter holding valve open; clean valve.• Valve spring broken; replace spring.• Valve steam packing too tight; loosen and/or replace packing.• Steam pressure exceeds close-off rating of valve spring;

replace actuator or valve spring with one that is compatible with the higher steam pressure.

• Valve installed backwards; re-install.• Adjust valve linkage.

• Electric control system malfunctioning • Calibrate or replace.

• Faulty or improperly placed humidity controller • Replace controller or relocate per catalog recommendations.

• Poor location of control components • Relocate per catalog recommendations.

• Incompatible control components • Replace per specifi ed recommendations.

• Automatic valve is hunting • Humidifi er capacity is oversized; change to smaller valve.• Pressure reducing valve is not accurately controlling steam pressure;

repair or replace.• Boiler pressure is swinging too widely; adjust.

• Excessive outside air volume • Check fans, dampers, VAV, etc.• Mixed air inlet formula: (% outside air) x (moisture content)

+ (% return air) x (moisture content) = mixed air inlet in lbs/100 cfm (kg/100 m3/h)

Continued

MAINTENANCE


Troubleshooting

Table 26-1:Ultra-sorb Model XV troubleshooting guide (continued)


Control system malfunctioning

• Incorrect control voltage • Replace transformer.

• Incorrect control signal • Replace components.

• Improper wiring connections • Rewire.

• Incorrect humidity sensor • Replace.

• Humidity controller out of calibration • Recalibrate.

Air cannot absorb steam quantity being discharged

• Humidifi er operates when blower is off • Provide interlock.

• Valve is hunting • See "Automatic valve is hunting," on facing page.

• Air temperature in duct too low for steam quantity

• Raise duct air temperature.

Humidifi er is noisy • Steam pressure too high • Reduce pressure.

• Panel is vibrating • Tighten assembly and/or mounting hardware.

Duct loses static pressure downstream from Ultra-sorb panel

• Improper sealing where Ultra-sorb frame penetrates duct

• Seal all panel corners and all cracks between panel and ducts/fl anges. See Figure 9-1.

Space humidity will not rise to humidistat set point (continued on next page)

• Steam pressure too low • Increase.

• Manual steam valve partially closed • Open.

• Strainer screen partially clogged • Clean.

• Boiler pressure too low • Adjust control.

• Pressure reducing valve not accurately controlling steam pressure

• Repair or replace.

• Boiler pressure swinging too widely • Adjust controls.

• Incorrect piping • Correct piping as shown on Pages 4, 5, and 12.

• Undersized steam piping • Replace piping.

• Automatic steam valve not fully opening • Valve packing is adjusted too tightly, loosen/replace packing.• Adjust valve linkage.• Recalibrate humidistat.

• Electric control system malfunctioning • Change transformer.

• Incorrect control circuit voltage • Replace components to make all components compatible.

• Incorrect control signal • Replace components.

• Improper wiring • Rewire.

• Incorrect humidity sensor • Replace.

• Humidity controller out of calibration or is malfunctioning

• Repair or replace.

• Malfunctioning temperature switch downstream from heat exchanger not allowing humidifi cation steam valve to open

• Replace or adjust switch.

• Malfunctioning fl oat switch in header not allowing humidifi cation steam valve to open

• Replace or repair switch.See fl oat switch instructions in Step 1 on Page 24.

• Pneumatic control system malfunctioning • Repair or replace.

• Obstructed air line • Remove obstruction.

Continued

MAINTENANCE


Table 26-1:Ultra-sorb Model XV troubleshooting guide (continued)


Space humidity will not rise to humidistat set point (continued)

• Air leak in actuator • Repair or replace diaphragm.

• Compressed air pressure is too low • Adjust pressure.

• Temperature control switch not allowing modulating steam valve to operate

• Consult DriSteem to assess whether installed panel is correct for application.

Condensate collects in duct

• Foreign matter preventing valve from closing • Clean or replace valve.

• Panel is mounted too close to internal devices (dampers, turning vanes, etc.) in duct

• Move panel to a point further upstream from internal devices. See “Selecting the location” on Page 16.

• More dispersion tubes shortens non-wetting distance. Consult DriSteem to determine the total number of tubes required.

• Uninsulated duct passing through unheated area (low duct surface temperature)

• Insulate ductwork.

Troubleshooting

MAINTENANCE


Form No. USXV-IOM-0414Part No. 890000-160 Rev E

Two-year Limited WarrantyDRI-STEEM Corporation (“DriSteem”) warrants to the original user that its products will be free from defects in materials and workmanship for a period of two (2) years after installation or twenty-seven (27) months from the date DriSteem ships such product, whichever date is the earlier.

If any DriSteem product is found to be defective in material or workmanship during the applicable warranty period, DriSteem’s entire liability, and the purchaser’s sole and exclusive remedy, shall be the repair or replacement of the defective product, or the refund of the purchase price, at DriSteem’s election. DriSteem shall not be liable for any costs or expenses, whether direct or indirect, associated with the installation, removal or reinstallation of any defective product. The Limited Warranty does not include cylinder replacement for electrode steam humidifi ers.

DriSteem’s Limited Warranty shall not be effective or actionable unless there is compliance with all installation and operating instructions furnished by DriSteem, or if the products have been modifi ed or altered without the written consent of DriSteem, or if such products have been subject to accident, misuse, mishandling, tampering, negligence or improper maintenance. Any warranty claim must be submitted to DriSteem in writing within the stated warranty period. Defective parts may be required to be returned to DriSteem.

DriSteem’s Limited Warranty is made in lieu of, and DriSteem disclaims all other warranties, whether express or implied, including but not limited to any IMPLIED WARRANTY OF MERCHANTABILITY, ANY IMPLIED WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE, any implied warranty arising out of a course of dealing or of performance, custom or usage of trade.

DriSteem SHALL NOT, UNDER ANY CIRCUMSTANCES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, LOSS OF PROFITS, REVENUE OR BUSINESS) OR DAMAGE OR INJURY TO PERSONS OR PROPERTY IN ANY WAY RELATED TO THE MANUFACTURE OR THE USE OF ITS PRODUCTS. The exclusion applies regardless of whether such damages are sought based on breach of warranty, breach of contract, negligence, strict liability in tort, or any other legal theory, even if DriSteem has notice of the possibility of such damages.

By purchasing DriSteem’s products, the purchaser agrees to the terms and conditions of this Limited Warranty.

Extended warrantyThe original user may extend the term of the DriSteem Limited Warranty for a limited number of months past the initial applicable warranty period and term provided in the fi rst paragraph of this Limited Warranty. All the terms and conditions of the Limited Warranty during the initial applicable warranty period and term shall apply during any extended term. An extended warranty term of an additional twelve (12) months or twenty four (24) months of coverage may be purchased. The extended warranty term may be purchased until eighteen (18) months after the product is shipped, after which time no extended warranties are available.

Any extension of the Limited Warranty under this program must be in writing, signed by DriSteem, and paid for in full by the purchaser.mc_051308_0630

DRI-STEEM Corporationa subsidiary of Research Products CorporationDriSteem is an ISO 9001:2000 certifi ed company

U.S. Headquarters:14949 Technology DriveEden Prairie, MN 55344800-328-4447 or 952-949-2415952-229-3200 (fax)

European offi ce:Marc BriersGrote Hellekensstraat 54 bB-3520 ZonhovenBelgium+3211823595 (voice)+3211817948 (fax)E-mail: [email protected]

Continuous product improvement is a policy of DriSteem Corporation; therefore, product features and specifi cations are subject to change without notice.

DriSteem and Ultra-sorb are registered trademarks of Research Products Corporation and are fi led for trademark registration in Canada and the European community.

Product and corporate names used in this document may be trademarks or registered trademarks. They are used for explanation only without intent to infringe.

© 2014 Research Products Corporation

Expect quality from the industry leader

For more than 45 years, DriSteem has been leading the industry with creative and reliable humidifi cation solutions. Our focus on quality is evident in the construction of Ultra-sorb steam dispersion panels, which feature stainless steel construction. DriSteem also leads the industry with a Two-year Limited Warranty and optional extended warranty.

For more [email protected]

For the most recent product information visit our Web site: www.dristeem.com

WARRANTY

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