Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500054-01 Printed in U.S.A. Form 50PSW-2SI Pg 1 810 7-09 Replaces: 50PSW-1SI Installation, Start-Up, and Service Instructions CONTENTS Page SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . .1,2 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16 Step 1 — Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . . 2 Step 2 — Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 • STORAGE • PROTECTION • INSPECT UNIT Step 3 — Locate Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Step 4 — Mount Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Step 5 — Connect Piping. . . . . . . . . . . . . . . . . . . . . . . . . 5 • WATER SUPPLY AND QUALITY • WATER LOOP APPLICATIONS • GROUND-WATER APPLICATIONS • GROUND-LOOP APPLICATIONS • UNIT LOAD PIPING Step 6 — Wire Electrical Connections . . . . . . . . . . . . 7 • POWER CONNECTION • SUPPLY VOLTAGE • EXTERNAL LOOP POWER CONNECTION • 208-V OPERATION • 460-V OPERATION Step 7 — Wire Low Voltage Connections . . . . . . . . 15 • THERMOSTAT CONNECTIONS • WATER FREEZE PROTECTION • ACCESSORY CONNECTIONS • WATER SOLENOID VALVES PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 FIELD SELECTABLE INPUTS . . . . . . . . . . . . . . . .16,17 Complete C Control Jumper Settings. . . . . . . . . . . 16 Complete C Control DIP Switches . . . . . . . . . . . . . . 16 Deluxe D Control Jumper Settings . . . . . . . . . . . . . 16 Deluxe D Control DIP Switches . . . . . . . . . . . . . . . . 16 Deluxe D Control Accessory Relay Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-19 Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Unit Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Scroll Compressor Rotation. . . . . . . . . . . . . . . . . . . . . 17 Flow Regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Cleaning and Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Cooling Tower/Boiler Systems . . . . . . . . . . . . . . . . . . 19 Ground Coupled, Closed Loop and Plateframe Heat Exchanger Well Systems . . . . . . . . . . . . . . . . 19 OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19,20 Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Units with Aquazone Complete C Control . . . . . . . 19 Units with Aquazone Deluxe D Control . . . . . . . . . . 19 SYSTEM TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20,21 Page Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Retry Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Aquazone Deluxe D Control LED Indicators . . . . . 21 SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21,22 Water Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Refrigerant System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Condenser Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Checking System Charge . . . . . . . . . . . . . . . . . . . . . . . 22 Refrigerant Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . 22,23 50PSW START-UP CHECKLIST . . . . . . . . . . . CL-1,CL-2 SAFETY CONSIDERATIONS Installation and servicing of air-conditioning equipment can be hazardous due to system pressure and electrical compo- nents. Only trained and qualified service personnel should install, repair, or service air-conditioning equipment. Untrained personnel can perform basic maintenance func- tion of cleaning coils. All other operations should be performed by trained service personnel. When working on air-condition- ing equipment, observe precautions in the literature, tags and labels attached to the unit, and other safety precautions that may apply. Improper installation, adjustment, alteration, service, main- tenance, or use can cause explosion, fire, electrical shock or other conditions which may cause personal injury or property damage. Consult a qualified installer, service agency, or your distributor or branch for information or assistance. The qualified installer or agency must use factory-authorized kits or accessories when modifying this product. Refer to the individ- ual instructions packaged with the kits or accessories when installing. Follow all safety codes. Wear safety glasses and work gloves. Use quenching cloth for brazing operations. Have fire extinguisher available. Read these instructions thoroughly and follow all warnings or cautions attached to the unit. Consult local building codes and the National Electrical Code (NEC) for special installation requirements. Understand the signal words — DANGER, WARNING, and CAUTION. DANGER identifies the most serious hazards which will result in severe personal injury or death. WARN- ING signifies hazards that could result in personal injury or death. CAUTION is used to identify unsafe practices, which would result in minor personal injury or product and property damage. IMPORTANT: Read the entire instruction manual before starting installation. AQUAZONE™ 50PSW036-360 Water-to-Water Source Heat Pump with PURON ® Refrigerant (R-410A)
Transcript
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Catalog No. 04-53500054-01 Printed in U.S.A. Form 50PSW-2SI Pg 1 810 7-09 Replaces: 50PSW-1SI
SAFETY CONSIDERATIONSInstallation and servicing of air-conditioning equipment can
be hazardous due to system pressure and electrical compo-nents. Only trained and qualified service personnel shouldinstall, repair, or service air-conditioning equipment.
Untrained personnel can perform basic maintenance func-tion of cleaning coils. All other operations should be performedby trained service personnel. When working on air-condition-ing equipment, observe precautions in the literature, tags andlabels attached to the unit, and other safety precautions thatmay apply.
Improper installation, adjustment, alteration, service, main-tenance, or use can cause explosion, fire, electrical shock orother conditions which may cause personal injury or propertydamage. Consult a qualified installer, service agency, or yourdistributor or branch for information or assistance. Thequalified installer or agency must use factory-authorized kits oraccessories when modifying this product. Refer to the individ-ual instructions packaged with the kits or accessories wheninstalling.
Follow all safety codes. Wear safety glasses and workgloves. Use quenching cloth for brazing operations. Have fireextinguisher available. Read these instructions thoroughly andfollow all warnings or cautions attached to the unit. Consultlocal building codes and the National Electrical Code (NEC)for special installation requirements.
Understand the signal words — DANGER, WARNING,and CAUTION. DANGER identifies the most serious hazardswhich will result in severe personal injury or death. WARN-ING signifies hazards that could result in personal injury ordeath. CAUTION is used to identify unsafe practices, whichwould result in minor personal injury or product and propertydamage.
IMPORTANT: Read the entire instruction manual beforestarting installation.
Recognize safety information. This is the safety alertsymbol ( ). When you see this symbol on the unit and ininstructions or manuals, be alert to the potential for personalinjury.
GENERALThe Aquazone™ 50PSW water source heat pump (WSHP)
is a single-package vertically mounted unit with electronic con-trols designed for year-round cooling and heating.
INSTALLATION
Step 1 — Check Jobsite — Installation, operation andmaintenance instructions are provided with each unit. Beforeunit start-up, read all manuals and become familiar with theunit and its operation. Thoroughly check out the system beforeoperation. Complete the inspections and instructions listedbelow to prepare a unit for installation. See Table 1 for unitphysical data.
Units are designed for indoor installation only. Be sure to al-low adequate space around the unit for servicing. See Fig. 1and 2 for overall unit dimensions.
These units are not approved for outdoor installation andmust be installed indoors in the structure being conditioned. Donot locate in areas where ambient conditions are not main-tained within 40 to 100 F.
Step 2 — Check Unit — Upon receipt of shipment atthe jobsite, carefully check the shipment against the bill oflading. Make sure all units have been received. Inspect the car-ton or crating of each unit, and inspect each unit for damage.Ensure the shipping company makes proper notation of anyshortages or damage on all copies of the freight bill. Concealeddamage not discovered during unloading must be reported tothe shipping company within 15 days of receipt of shipment.NOTE: It is the responsibility of the purchaser to file allnecessary claims with the shipping company.
1. Verify unit is correct model for entering water tempera-ture of job.
2. Be sure the location chosen for unit installation providesambient temperatures maintained above freezing. Wellwater applications are especially susceptible to freezing.
3. Be sure the installation location is isolated from sleepingareas, private offices and other acoustically sensitivespaces.NOTE: A sound control accessory package may be usedto help eliminate sound in sensitive spaces.
4. Provide sufficient access to allow maintenance andservicing of the compressor and coils.
5. Provide an unobstructed path to the unit within the closetor mechanical room. Space should be sufficient to allowremoval of unit if necessary.
6. Provide ready access to water valves and fittings, andscrewdriver access to unit side panels.
7. Where access to side panels is limited, pre-removal of thecontrol box side mounting screws may be necessary forfuture servicing.
STORAGE — If the equipment is not needed for immediateinstallation upon its arrival at the jobsite, it should be left in itsshipping carton and stored in a clean, dry area of the buildingor in a warehouse. Units must be stored in an upright positionat all times. If carton stacking is necessary, stack units a maxi-mum of 3 cartons high. Do not remove any equipment from itsshipping package until it is needed for installation.
Table 1 — 50PSW Unit Physical Data
LEGEND NOTES:1. Maximum working pressure on the base unit is 500 psig.2. Units have a dual isolated compressor mounting.3. Units have a balanced port expansion valve (TXV).4. Insulated source and load water coils are standard.5. Insulated refrigerant circuit is standard.6. Compressor is on (green) light and fault on (red) light.
WARNING
Electrical shock can cause personal injury or death. Beforeinstalling or servicing system, always turn off main powerto system. There may be more than one disconnect switch.Turn off accessory heater power if applicable. Install lock-out tag.
IMPORTANT: The installation of water source heat pumpunits and all associated components, parts, and accessorieswhich make up the installation shall be in accordance withthe regulations of ALL authorities having jurisdiction andMUST conform to all applicable codes. It is the responsi-bility of the installing contractor to determine and complywith ALL applicable codes and regulations.
CAUTION
To avoid equipment damage, do not use these units as asource of heating or cooling during the construction pro-cess. The mechanical components used in these units canquickly become clogged with construction dirt and debriswhich may cause system damage.
HWG — Hot Water GeneratorHACR — Heating, Air Conditioning, and Refrigeration
Fig. 1 — 50PSW036-120 Unit
B
C
A
M
L
K
1.0
1.0
1
2
3
4
5 6
1.8
JH
G
F
E
D
RequiredService Access
OptionalService Access
1.3
2.7
7.3
1.7
1
2
3
4
5
6
RequiredService Access
OptionalService Access
B
C
A
SIZES 036,060
SIZE 120
a50-8420
SIZES 036,060
SIZE 120
4
PROTECTION — Once the units are properly positioned onthe jobsite, they must be covered with either a shipping carton,vinyl film, or an equivalent protective covering. Open ends ofpipes stored on the jobsite must be capped. This precaution isespecially important in areas where painting, plastering, orspraying of fireproof material, etc., is not yet complete. Foreignmaterial that is allowed to accumulate within the units can pre-vent proper start-up and necessitate costly clean-up operations.
Before installing any of the system components, be sure toexamine each pipe, fitting, and valve, and remove any dirt orforeign material found in or on these components.
INSPECT UNIT — To prepare the unit for installation, com-plete the procedures listed below:
1. Compare the electrical data on the unit nameplate withordering and shipping information to verify that thecorrect unit has been shipped.
2. Verify that the unit is the correct model for the enteringwater temperature of the job.
3. Wait to remove the packaging until the unit is ready forinstallation.
4. Verify that the refrigerant tubing is free of kinks or dents,and that it does not touch other unit components.
5. Inspect all electrical connections. Be sure connections areclean and tight at the terminals.
6. Loosen bolts and remove shipping clamps on compres-sors equipped with external spring vibration isolators.Compressors are internally spring-mounted.
7. Locate and verify any accessory kit located in compressorsection.
8. Remove any access panel screws that may be difficult toremove once unit is installed.
Step 3 — Locate Unit — The following guidelinesshould be considered when choosing a location for the WSHP:• Units are for indoor use only.• Provide sufficient space for water and electrical
connections.• Locate unit in an area that allows for easy access and
removal of access panels.• Allow enough space for service personnel to perform
maintenance.
Step 4 — Mount Unit — Mount unit as shown in Fig. 3.Rod attachments must be able to support the weight of the unit.See Table 1 for unit operating weight.
CAUTION
DO NOT store or install units in corrosive environments orin locations subject to temperature or humidity extremes(e.g., attics, garages, rooftops, etc.). Corrosive conditionsand high temperature or humidity can significantly reduceperformance, reliability, and service life. Always moveunits in an upright position. Tilting units on their sides maycause equipment damage.
Fig. 2 — 50PSW180,360 Unit
12.3[313]
15.0[381]
4.5[114]
4.3[108]
Power Supply Wiring 1.375 x 2.0[ 34.9 x 50.8] Double KO
4.3[108]
Control Wiring 1.125 x 1.375[ 28.6 x 34.9] Double KO
4.5[114]
2” IPT Water Connections
15.0[381]
5.4[138]
21.0[533]
Fault/Run Lights
62.0[1575]
63.2[1604]
LeftSideView
FrontView
TopView
Load Source
Side
Refrig.CircuitAccessPanel
Front
CompressorAccessPanel
ElectricalAccessPanel
HeaderAccessPanel
Top
Minimum3ft [91cm]
Required ServiceAccess
45.1[1146]
26.3[669]
Optional (Single Unit)3ft (91cm) Additional
Service Access
NOTES:1. Dimensions shown in inches [mm].2. Front and side access is preferred for service
access. All components may be accessed fromthe front of the unit.
a50-8421
5
Step 5 — Connect Piping — Depending on the appli-cation, there are 3 types of WSHP piping systems to choosefrom: water loop, ground-water and ground loop. Refer to theCarrier System Design Manual for additional information.
All WSHP units utilize low temperature soldered femalepipe thread fittings for water connections to prevent annealingand out-of-round leak problems which are typically associatedwith high temperature brazed connections. When making pip-ing connections, consider the following:• A backup wrench must be used when making screw con-
nections to unit to prevent internal damage to piping.• Insulation may be required on piping to avoid condensa-
tion in the case where fluid in loop piping operates attemperatures below dew point of adjacent air.
• Piping systems that contain steel pipes or fittings maybe subject to galvanic corrosion. Dielectric fittings maybe used to isolate the steel parts of the system to avoidgalvanic corrosion.
• Units may be manifolded together via top water connectsto get increased temperatures, when piped in series, orgreater capacity, when piped in parallel.
WATER SUPPLY AND QUALITY — Check water supply.Water supply should be plentiful and of good quality. SeeTable 2 for water quality guidelines.
In all applications, the quality of the water circulatedthrough the heat exchanger must fall within the ranges listed inthe Water Quality Guidelines table. Consult a local water treat-ment firm, independent testing facility, or local water authorityfor specific recommendations to maintain water quality withinthe published limits.WATER LOOP APPLICATIONS — Water loop applica-tions usually include a number of units plumbed to a commonpiping system. Maintenance to any of these units can introduceair into the piping system. Therefore, air eliminationequipment comprises a major portion of the mechanical roomplumbing.
The flow rate is usually set between 2.25 and 3 gpm per tonof cooling capacity. For proper maintenance and servicing,pressure-temperature (P/T) ports are necessary for temperatureand flow verification.
In addition to complying with any applicable codes, consid-er the following for system piping:• Piping systems utilizing water temperatures below
50 F require 1/2-in. closed cell insulation on all pipingsurfaces to eliminate condensation.
• All plastic to metal threaded fittings should be avoideddue to the potential to leak. Use a flange fitted substitute.
• Teflon* tape thread sealant is recommended to minimizeinternal fouling of the heat exchanger.
• Use backup wrench. Do not overtighten connections.• Route piping to avoid service access areas to unit. • The piping system should be flushed prior to operation to
remove dirt and foreign materials from the system.
GROUND-WATER APPLICATIONS — In addition tocomplying with any applicable codes, consider the followingfor system piping:• Install shut-off valves for servicing.• Install pressure-temperature plugs to measure flow and
temperature.• Boiler drains and other valves should be connected using
a “T” connector to allow acid flushing for the heatexchanger.
• Do not overtighten connections.• Route piping to avoid service access areas to unit.• Use PVC SCH80 or copper piping material.NOTE: PVC SCH40 should not be used due to system highpressure and temperature extremes.GROUND-LOOP APPLICATIONS — Temperatures be-tween 25 and 110 F and a cooling capacity of 2.25 to 3 gpm offlow per ton are recommended. In addition to complying withany applicable codes, consider the following for system piping:• Piping materials should be limited to only polyethylene
fusion in the buried sections of the loop.• Galvanized or steel fittings should not be used at any
time due to corrosion.• All plastic to metal threaded fittings should be avoided
due to the potential to leak. Use a flange fitted substitute.• Do not overtighten connections.• Route piping to avoid service access areas to unit.• Pressure-temperature (P/T) plugs should be used to mea-
sure flow of pressure drop.UNIT LOAD PIPING — For applications with wide temper-ature variation such as heating/cooling coils:• Use piping materials that are rated for the maximum tem-
perature and pressure combination. This excludes PVCfor most heating applications.
• Ensure load water flow in high temperature heatingapplications is at least 3 gpm per ton to improve perfor-mance and reduce nuisance high pressure faults.
• DO NOT employ plastic to metal threaded joints.• Utilize a pressure tank and air separator vent system to
equalize pressure and remove air.• Employ an 800-micron particulate strainer in both load
and source plumbing to protect the plate heat exchanger.Swimming Pool Hot Tub Applications — Load heat ex-changer should be isolated with secondary heat exchangerconstructed of anti-corrosion material in all chlorine/brominefluid applications.Potable Water Applications• Load coax material should always be vented double
walled for use in potable water systems.• Ensure load water flow in high temperature heating
applications is at least 3 gpm per ton to improve perfor-mance and reduce nuisance high pressure faults.
IMPORTANT: Failure to comply with the above requiredwater quality and quantity limitations and the closed-system application design requirements may cause damageto the tube-in-tube heat exchanger that is not the responsi-bility of the manufacturer.
Fig. 3 — Typical Water Loop System — Boiler, Tower, or Ground (Sizes 180,360 Shown)
*Teflon is a trademark of E. I. du Pont de Nemours and Company.
6
Table 2 — Water Quality Guidelines
LEGEND
*Heat exchanger materials considered are copper, cupronickel,304 SS (stainless steel), 316 SS, titanium.
†Closed recirculating system is identified by a closed pressurizedpiping system.
**Recirculating open wells should observe the open recirculatingdesign considerations.
††If the concentration of these corrosives exceeds the maximumallowable level, then the potential for serious corrosion problemsexists.Sulfides in the water quickly oxidize when exposed to air, requir-ing that no agitation occur as the sample is taken. Unless testedimmediately at the site, the sample will require stabilization with afew drops of one Molar zinc acetate solution, allowing accuratesulfide determination up to 24 hours after sampling. A low pH andhigh alkalinity cause system problems, even when both values arewithin ranges shown. The term pH refers to the acidity, basicity, orneutrality of the water supply. Below 7.0, the water is consideredto be acidic. Above 7.0, water is considered to be basic. Neutralwater contains a pH of 7.0.To convert ppm to grains per gallon, divide by 17. Hardness inmg/l is equivalent to ppm.
CONDITION HXMATERIAL*
CLOSED RECIRCULATING† OPEN LOOP AND RECIRCULATING WELL**
Scaling Potential — Primary MeasurementAbove the given limits, scaling is likely to occur. Scaling indexes should be calculated using the limits below.
pH/CalciumHardness Method All N/A pH < 7.5 and Ca Hardness, <100 ppm
Index Limits for Probable Scaling Situations (Operation outside these limits is not recommended.)Scaling indexes should be calculated at 150 F for direct use and HWG applications, and at 90 F for indirect HX use. A monitoring plan should be implemented.
Ryznar Stability Index All N/A 6.0 - 7.5If >7.5 minimize steel pipe use.
Langelier Saturation IndexAll N/A
–0.5 to +0.5If <–0.5 minimize steel pipe use.
Based upon 150 F HWG and direct well, 85 F indirect well HX.Iron Fouling
Iron Fe2+ (Ferrous)(Bacterial Iron Potential) All N/A
<0.2 ppm (Ferrous)If Fe2+ (ferrous) >0.2 ppm with pH 6 - 8, O2<5 ppm check for
iron bacteria.Iron Fouling All N/A <0.5 ppm of Oxygen
Above this level deposition will occur.Corrosion Prevention††
pH All 6 - 8.5Monitor/treat as needed.
6 - 8.5Minimize steel pipe below 7 and no open tanks with pH <8.
Hydrogen Sulfide (H2S)
All N/A
<0.5 ppmAt H2S>0.2 ppm, avoid use of copper and cupronickel piping of HXs.
Rotten egg smell appears at 0.5 ppm level.Copper alloy (bronze or brass) cast components are okay to <0.5 ppm.
Ammonia Ion as Hydrox-ide, Chloride, Nitrate and Sulfate Compounds
All N/A<0.5 ppm
Maximum Chloride Levels Maximum allowable at maximum water temperature.50 F (10 C) 75 F (24 C) 100 F (38 C)
Copper N/A <20 ppm NR NRCupronickel N/A <150 ppm NR NR
304 SS N/A <400 ppm <250 ppm <150 ppm316 SS N/A <1000 ppm <550 ppm <375 ppm
Titanium N/A >1000 ppm >550 ppm >375 ppmErosion and Clogging
Particulate Size andErosion
All
<10 ppm of particles and a maximum velocity of
6 fps.Filtered for maximum
800 micron size.
<10 ppm (<1 ppm “sandfree” for reinjection) of particles and a maxi-mum velocity of 6 fps. Filtered for maximum 800 micron size. Any par-ticulate that is not removed can potentially clog components.
HWG— Hot Water GeneratorHX — Heat ExchangerN/A — Design Limits Not Applicable Consid-
All field-installed wiring, including the electrical ground,MUST comply with the National Electrical Code (NEC) aswell as applicable local codes. In addition, all field wiring must
conform to the Class II temperature limitations described in theNEC.
Operating voltage must be the same voltage and phase asshown in Table 3.
Refer to unit wiring diagrams Fig. 4-12 for a schematic ofthe field connections which must be made by the installing (orelectrical) contractor.
Consult the unit wiring diagram located on the inside of thecompressor access panel to ensure proper electrical hookup.The installing (or electrical) contractor must make the fieldconnections when using field-supplied disconnect.
Make all final electrical connections with a length of flexi-ble conduit to minimize vibration and sound transmission tothe building.POWER CONNECTION — Line voltage connection ismade by connecting incoming line voltage wires to L1, L2, andL3 on the power distribution block.
Table 3 — 50PSW Electrical Data
LEGEND
*Time-delay fuse or HACR circuit breaker.NOTE: The 460-v units using an internal secondary pump willrequire a neutral wire from the supply side in order to feed theaccessory with 265-v.
WARNING
To avoid possible injury or death due to electrical shock,open the power supply disconnect switch and secure it inan open position during installation. Install lockout tag.
CAUTION
Use only copper conductors for field-installed electricalwiring. Unit terminals are not designed to accept othertypes of conductors. Failure to heed this warning couldresult in equipment damage.
FLA — Full Load AmpsHACR — Heating, Air Conditioning, and RefrigerationLRA — Locked Rotor AmpsMCA — Minimum Circuit AmpsMOCP — Minimum Overcurrent ProtectionRLA — Rated Load Amps
8
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— T
rans
form
er is
fact
ory
wire
d fo
r 46
0 v
and
575
v po
wer
sup
ply
with
wire
lea
d co
lors
as
show
n in
the
cha
rt.
The
tra
ns-
form
er is
75
va a
nd is
pro
tect
ed w
ith a
circ
uit b
reak
er in
the
seco
ndar
y ci
rcui
t.4.
Pow
er S
uppl
y: 2
08-2
30 v
— T
rans
form
er i
s fa
ctor
y w
ired
for
208
v po
wer
supp
ly. F
or 2
30 v
pow
er s
uppl
y, d
isco
nnec
t red
lead
at H
2 an
d re
conn
ect i
t at
H3.
The
tra
nsfo
rmer
is
150
va a
nd i
s pr
otec
ted
with
pri
mar
y an
d se
cond
ary
fuse
s.5.
FP
1 th
erm
isto
r pr
ovid
es l
ow t
emp
prot
ectio
n fo
r so
urce
wat
er.
Whe
n us
ing
antif
reez
e so
lutio
ns, c
ut J
W3
jum
per.
6.24
-v a
larm
sig
nal s
how
n. F
or d
ry a
larm
con
tact
, cut
JW
1 ju
mpe
r an
d dr
y co
n-ta
ct w
ill b
e av
aila
ble
betw
een
AL1
and
AL2
.7.
Tran
sfor
mer
sec
onda
ry g
roun
d vi
a C
ompl
ete
C b
oard
sta
ndof
fs,
and
scre
ws
to c
ontr
ol b
ox. (
Gro
und
avai
labl
e fr
om to
p tw
o st
ando
ffs a
s sh
own.
)8.
Suf
fix 1
des
igna
tes
asso
ciat
ion
with
lead
com
pres
sor,
suffi
x 2
with
lag
com
-pr
esso
r. E
xcep
tion
AL1
, AL2
, FP
1, F
P2,
are
per
lege
nd.
9.R
efer
to T
herm
osta
t Ins
talla
tion,
App
licat
ion
and
Ope
ratio
n M
anua
l for
con
trol
wiri
ng t
o th
e un
it. L
ow v
olta
ge w
iring
mus
t be
“C
lass
1”
and
volta
ge r
atin
geq
ual t
o or
gre
ater
than
uni
t sup
ply
volta
ge.
9
LEG
EN
D Fig
. 5 —
Typ
ical
Aq
uazo
ne™
50P
SW
036-
180
Co
mp
lete
C C
on
tro
l Wir
ing
, Sin
gle
-Ph
ase
Co
mp
lete
CC
om
ple
te C
Sol
enoi
d C
oil
The
rmis
tor
Gro
und
Indi
cato
r Li
ght
G=
Gre
en, R
=R
ed(C
omp
On)
(A
larm
Lig
ht)
Circ
uit B
reak
er
Hig
h P
ress
ure
Sw
itch
Low
Pre
ssur
e S
witc
h
Fus
eF
AL
—A
larm
Rel
ay C
onta
cts
CA
P—
Com
pres
sor
Cap
acito
rC
C—
Com
pres
sor
Con
tact
orF
P1
—S
enso
r, S
ourc
e Lo
w T
emp
Pro
tect
ion
FP
2—
Sen
sor,
Load
Low
Tem
p P
rote
ctio
nH
P—
Hig
h P
ress
ure
Sw
itch
JW1
—Ju
mpe
r W
ire fo
r A
larm
LO
C—
Loss
of C
harg
e P
ress
ure
Sw
itch
NE
C—
Nat
iona
l Ele
ctric
al C
ode
P1
—F
ield
Wir
ing
Term
inal
Blo
ckR
VS
—R
ever
sing
Val
ve S
olen
oid
TR
AN
S—
Tran
sfor
mer
Fact
ory
Line
Vol
tage
Wir
ing
Fact
ory
Low
Vol
tage
Wiri
ngF
ield
Lin
e V
olta
ge W
iring
Fie
ld L
ow V
olta
ge W
iring
Pri
nted
Circ
uit T
race
Rel
ay/C
onta
ctor
Coi
l
NO
TE
S:
1.C
ompr
esso
r th
erm
ally
pro
tect
ed in
tern
ally
.2.
All
wiri
ng to
the
unit
mus
t com
ply
with
NE
C a
nd lo
cal c
odes
.3.
Tran
sfor
mer
is w
ired
to 2
65-v
(B
RN
) le
ad fo
r 26
5-1-
60 u
nits
. Fo
r 22
0-24
0-v
or23
0-v
units
, di
scon
nect
BR
N l
ead
at L
1 an
d co
nnec
t O
RG
lea
d to
L1.
Clo
seop
en e
nd o
f B
RN
and
RE
D le
ads
with
insu
latio
n ta
pe.
For
208
-v u
nit,
disc
on-
nect
BR
N l
ead
at L
1 an
d co
nnec
t R
ED
lea
d to
L1.
Clo
se o
pen
ends
of
BR
Nan
d O
RG
lea
ds w
ith i
nsul
atio
n ta
pe.
Tran
sfor
mer
is
ener
gy l
imiti
ng o
r m
ayha
ve c
ircui
t bre
aker
.4.
FP
1 th
erm
isto
r pr
ovid
es f
reez
e pr
otec
tion
for
sour
ce w
ater
. W
hen
usin
g an
ti-fr
eeze
sol
utio
ns, c
ut J
W3
jum
per.
5.C
heck
inst
alla
tion
wiri
ng in
form
atio
n fo
r co
ntro
ller
hook
up. C
ontr
ol w
irin
g m
ust
be C
lass
1 a
nd v
olta
ge r
atin
g eq
ual t
o or
gre
ater
than
uni
t sup
ply
volta
ge.
6.Tr
ansf
orm
er s
econ
dary
gro
und
via
Com
plet
e C
boa
rd s
tand
off
and
scre
ws
toco
ntro
l box
. (G
roun
d av
aila
ble
from
top
2 st
ando
ffs a
s sh
own.
)
a50-8422
10
Fig
. 6 —
Typ
ical
Aq
uazo
ne™
50P
SW
360
Co
mp
lete
C a
nd
LO
N C
on
tro
ller
Co
ntr
ol W
irin
g, 3
-Ph
ase
Com
plet
e C
Com
plet
e C
CO
MP
LET
E C
C
OM
PLE
TE
C
CO
MP
LET
E C
2
CO
MP
LET
E C
1
55
A50-8434
AL
—A
larm
Rel
ay C
onta
cts
CB
—C
ircui
t Bre
aker
CC
—C
ompr
esso
r C
onta
ctor
CO
MP
—C
ompr
esso
rF
P1
—S
enso
r, S
ourc
e Lo
w T
emp
Pro
tect
ion
FP
2—
Sen
sor,
Load
Low
Tem
p P
rote
ctio
nH
P—
Hig
h P
ress
ure
Sw
itch
JW4
—Ju
mpe
r W
ire fo
r A
larm
LE
D—
Ligh
t-E
mitt
ing
Dio
deL
OC
—Lo
ss o
f Cha
rge
Pre
ssur
e S
witc
hL
ON
—Lo
cal O
pera
ting
Net
wor
kN
EC
—N
atio
nal E
lect
rica
l Cod
eP
1—
Fie
ld W
iring
Ter
min
al B
lock
PD
B—
Pow
er D
istr
ibut
ion
Blo
ckR
VS
—R
ever
sing
Val
ve S
olen
oid
TR
AN
S—
Tran
sfor
mer
Fact
ory
Line
Vol
tage
Wiri
ngFa
ctor
y Lo
w V
olta
ge W
iring
Fie
ld L
ine
Vol
tage
Wir
ing
Fie
ld L
ow V
olta
ge W
iring
Prin
ted
Circ
uit T
race
LEG
EN
D*O
ptio
nal.
NO
TE
S:
1.C
ompr
esso
r m
otor
ther
mal
ly p
rote
cted
inte
rnal
ly.
2.A
ll w
iring
to th
e un
it m
ust c
ompl
y w
ith N
EC
and
loca
l cod
es.
3.P
ower
Sup
ply:
460
v a
nd 5
75 v
— T
rans
form
er is
fact
ory
wire
d fo
r 46
0 v
and
575
v po
wer
sup
ply
with
wire
lea
d co
lors
as
show
n in
the
cha
rt.
The
tra
ns-
form
er is
75
va a
nd is
pro
tect
ed w
ith a
circ
uit b
reak
er in
the
seco
ndar
y ci
rcui
t.4.
Pow
er S
uppl
y: 2
08-2
30 v
— T
rans
form
er i
s fa
ctor
y w
ired
for
208
v po
wer
supp
ly. F
or 2
30 v
pow
er s
uppl
y, d
isco
nnec
t red
lead
at H
2 an
d re
conn
ect i
t at
H3.
The
tra
nsfo
rmer
is
150
va a
nd i
s pr
otec
ted
with
prim
ary
and
seco
ndar
yfu
ses.
5.F
P1
ther
mis
tor
prov
ides
low
tem
p pr
otec
tion
for
sour
ce w
ater
. W
hen
usin
gan
tifre
eze
solu
tions
, cut
JW
3 ju
mpe
r.6.
Fact
ory
cut J
W1
jum
per.
Dry
con
tact
will
be
avai
labl
e be
twee
n A
L1 a
nd A
L2.
7.Tr
ansf
orm
er s
econ
dary
gro
und
via
Com
plet
e C
boa
rd s
tand
offs
, an
d sc
rew
sto
con
trol
box
. (G
roun
d av
aila
ble
from
top
two
stan
doffs
as
show
n.)
8.S
uffix
1 d
esig
nate
s as
soci
atio
n w
ith l
ead
com
pres
sor,
suffi
x 2
with
lag
com
-pr
esso
r. E
xcep
tion
AL1
, AL2
, FP
1, F
P2,
are
per
lege
nd.
9.R
efer
to
LON
, or
The
rmos
tat
Inst
alla
tion,
App
licat
ion
and
Ope
ratio
n M
anua
lfo
r co
ntro
l wir
ing
to th
e un
it. L
ow v
olta
ge w
irin
g m
ust b
e “C
lass
1”
and
volta
gera
ting
equa
l to
or g
reat
er th
an u
nit s
uppl
y vo
ltage
.
Rel
ay/C
onta
ctor
Coi
l
Sol
enoi
d C
oil
The
rmis
tor
Gro
und
Indi
cato
r Li
ght
G=
Gre
en, R
=R
ed(C
omp
On)
(A
larm
Lig
ht)
Circ
uit B
reak
er
Hig
h P
ress
ure
Sw
itch
Low
Pre
ssur
e S
witc
h
Fus
eF
11
Fig
. 7 —
Typ
ical
Aq
uazo
ne™
50P
SW
036-
180
Co
mp
lete
C C
on
tro
l Wir
ing
, 3-P
has
e
Co
mp
lete
C
Co
mp
lete
C
Co
mp
lete
C
Co
mp
lete
C
Co
mp
lete
C 1
Co
mp
lete
C 2
LEG
EN
D
P1
—F
ield
Wir
ing
Term
inal
Blo
ckP
DB
—P
ower
Dis
trib
utio
n B
lock
RV
S—
Rev
ersi
ng V
alve
Sol
enoi
dT
RA
NS
—Tr
ansf
orm
erFa
ctor
y Li
ne V
olta
ge W
iring
Fact
ory
Low
Vol
tage
Wir
ing
Fie
ld L
ine
Vol
tage
Wiri
ngF
ield
Low
Vol
tage
Wiri
ngP
rinte
d C
ircui
t Tra
ce
Rel
ay/C
onta
ctor
Coi
l
Sol
enoi
d C
oil
The
rmis
tor
Gro
und
Indi
cato
r Li
ght
G=
Gre
en, R
=R
ed(C
omp
On)
(A
larm
Lig
ht)
Circ
uit B
reak
er
Hig
h P
ress
ure
Sw
itch
Low
Pre
ssur
e S
witc
h
Fus
eF
AL
—A
larm
Rel
ay C
onta
cts
AS
TAT
—A
quas
tat
CB
—C
ircui
t Bre
aker
CA
P—
Com
pres
sor
Cap
acito
rC
C—
Com
pres
sor
Con
tact
orF
P1
—S
enso
r, S
ourc
e Lo
w T
emp
Pro
tect
ion
FP
2—
Sen
sor,
Load
Low
Tem
p P
rote
ctio
nG
ND
—G
roun
dH
WG
—H
ot W
ater
Gen
erat
orH
P—
Hig
h P
ress
ure
Sw
itch
JW1
—Ju
mpe
r W
ire fo
r A
larm
LO
C—
Loss
of C
harg
e P
ress
ure
Sw
itch
NE
C—
Nat
iona
l Ele
ctric
al C
ode
NO
TE
S:
1.C
ompr
esso
r th
erm
ally
pro
tect
ed in
tern
ally
.2.
All
wir
ing
to th
e un
it m
ust c
ompl
y w
ith N
EC
and
loca
l cod
es.
3.20
8/23
0-v
tran
sfor
mer
s w
ill b
e co
nnec
ted
for
208-
v op
erat
ion.
For
230
-v o
per-
atio
n, d
isco
nnec
t RE
D le
ad a
t L1,
and
atta
ch O
RG
lead
to L
1. C
lose
ope
n en
dof
RE
D le
ad w
ith in
sula
ting
tape
. 380
/420
-v tr
ansf
orm
ers
will
be
conn
ecte
d fo
r38
0-v
oper
atio
n. F
or 4
20-v
ope
ratio
n, d
isco
nnec
t V
IO l
ead
at L
1, a
nd a
ttach
BR
N le
ad to
L1.
Clo
se o
pen
end
of V
IO le
ad w
ith in
sula
ting
tape
.4.
FP
1 th
erm
isto
r pr
ovid
es f
reez
e pr
otec
tion
for
sour
ce w
ater
. W
hen
usin
g an
ti-fr
eeze
sol
utio
ns, c
ut J
W3
jum
per.
5.Ty
pica
l he
at p
ump
ther
mos
tat
wiri
ng s
how
n. R
efer
to
ther
mos
tat
inst
alla
tion
inst
ruct
ions
for
wiri
ng to
the
unit.
The
rmos
tat
wiri
ng m
ust b
e C
lass
1 a
nd v
olt-
age
ratin
g eq
ual t
o or
gre
ater
than
uni
t sup
ply
volta
ge.
6.Tr
ansf
orm
er s
econ
dary
gro
und
via
Com
plet
e C
boa
rd s
tand
off
and
scre
ws
toco
ntro
l box
. (G
roun
d av
aila
ble
from
top
2 st
ando
ffs a
s sh
own.
)7.
Suf
fix 1
des
igna
tes
asso
ciat
ion
with
lead
com
pres
sor.
Suf
fix 2
des
igna
tes
lag
com
pres
sor.
Exc
eptio
ns a
re A
L1, A
L2, F
P1,
FP
2.
a50-8423
12
Del
uxe
D
Del
uxe
D
DE
LUX
E D
DE
LUX
E D
DE
LUX
E D
2D
ELU
XE
D 1
*Opt
iona
l.N
OT
ES
:1.
Com
pres
sor
mot
or th
erm
ally
pro
tect
ed in
tern
ally
.2.
All
wiri
ng to
the
unit
mus
t com
ply
with
NE
C a
nd lo
cal c
odes
.3.
Pow
er S
uppl
y: 4
60 v
and
575
v —
Tra
nsfo
rmer
is fa
ctor
y w
ired
for
460
v an
d57
5 v
pow
er s
uppl
y w
ith w
ire l
ead
colo
rs a
s sh
own
in t
he c
hart
. T
he t
rans
-fo
rmer
is 7
5 va
and
is p
rote
cted
with
a c
ircui
t bre
aker
in th
e se
cond
ary
circ
uit.
4.P
ower
Sup
ply:
208
-230
v —
Tra
nsfo
rmer
is
fact
ory
wire
d fo
r 20
8 v
pow
ersu
pply
. For
230
v p
ower
sup
ply,
dis
conn
ect r
ed le
ad a
t H2
and
reco
nnec
t it a
tH
3. T
he t
rans
form
er i
s 15
0 va
and
is p
rote
cted
with
pri
mar
y an
d se
cond
ary
fuse
s.5.
FP
1 th
erm
isto
r pr
ovid
es l
ow t
emp
prot
ectio
n fo
r so
urce
wat
er.
Whe
n us
ing
antif
reez
e so
lutio
ns, c
ut J
W3
jum
per.
6.24
-v a
larm
sig
nal s
how
n. F
or d
ry a
larm
con
tact
, cut
JW
1 ju
mpe
r an
d dr
y co
n-ta
ct w
ill b
e av
aila
ble
betw
een
AL1
and
AL2
.7.
Tran
sfor
mer
sec
onda
ry g
roun
d vi
a D
elux
e D
boa
rd s
tand
offs
, an
d sc
rew
s to
cont
rol b
ox. (
Gro
und
avai
labl
e fr
om to
p tw
o st
ando
ffs a
s sh
own.
)8.
Suf
fix 1
des
igna
tes
asso
ciat
ion
with
lea
d co
mpr
esso
r, su
ffix
2 w
ith la
g co
m-
pres
sor.
Exc
eptio
n A
L1, A
L2, F
P1,
FP
2, a
re p
er le
gend
.9.
Ref
er to
The
rmos
tat I
nsta
llatio
n, A
pplic
atio
n an
d O
pera
tion
Man
ual f
or c
ontr
olw
iring
to
the
unit.
Low
vol
tage
wiri
ng m
ust
be “
Cla
ss 1
” an
d vo
ltage
rat
ing
equa
l to
or g
reat
er th
an u
nit s
uppl
y vo
ltage
.
AL
—A
larm
Rel
ay C
onta
cts
CB
—C
ircui
t Bre
aker
CC
—C
ompr
esso
r C
onta
ctor
CO
MP
—C
ompr
esso
rF
P1
—S
enso
r, S
ourc
e Lo
w T
emp
Pro
tect
ion
FP
2—
Sen
sor,
Load
Low
Tem
p P
rote
ctio
nH
P—
Hig
h P
ress
ure
Sw
itch
JW4
—Ju
mpe
r W
ire fo
r A
larm
LE
D—
Ligh
t-E
mitt
ing
Dio
deL
OC
—Lo
ss o
f Cha
rge
Pre
ssur
e S
witc
hN
EC
—N
atio
nal E
lect
rical
Cod
eP
1—
Fie
ld W
iring
Ter
min
al B
lock
PD
B—
Pow
er D
istr
ibut
ion
Blo
ck
LEG
EN
D
RV
S—
Rev
ersi
ng V
alve
Sol
enoi
dT
RA
NS
—Tr
ansf
orm
erFa
ctor
y Li
ne V
olta
ge W
irin
gFa
ctor
y Lo
w V
olta
ge W
iring
Fie
ld L
ine
Vol
tage
Wiri
ngF
ield
Low
Vol
tage
Wir
ing
Prin
ted
Circ
uit T
race
Rel
ay/C
onta
ctor
Coi
l
Sol
enoi
d C
oil
The
rmis
tor
Gro
und
Indi
cato
r Li
ght
G=
Gre
en, R
=R
ed(C
omp
On)
(A
larm
Lig
ht)
Circ
uit B
reak
er
Hig
h P
ress
ure
Sw
itch
Low
Pre
ssur
e S
witc
h
Fus
eF
A50-8136
LE37
1
Fig
. 8 —
Typ
ical
Aq
uazo
ne™
50P
SW
360
Del
uxe
D C
on
tro
l Wir
ing
, 3-P
has
e
13
Del
uxe
D
Del
uxe
D
DE
LUX
E D
DE
LUX
E D
DE
LUX
E D
1D
ELU
XE
D 2
*Opt
iona
l.N
OT
ES
:1.
Com
pres
sor
mot
or th
erm
ally
pro
tect
ed in
tern
ally
.2.
All
wiri
ng to
the
unit
mus
t com
ply
with
NE
C a
nd lo
cal c
odes
.3.
Pow
er S
uppl
y: 4
60 v
and
575
v —
Tra
nsfo
rmer
is fa
ctor
y w
ired
for
460
v an
d57
5 v
pow
er s
uppl
y w
ith w
ire l
ead
colo
rs a
s sh
own
in t
he c
hart
. T
he t
rans
-fo
rmer
is 7
5 va
and
is p
rote
cted
with
a c
ircui
t bre
aker
in th
e se
cond
ary
circ
uit.
4.P
ower
Sup
ply:
208
-230
v —
Tra
nsfo
rmer
is
fact
ory
wire
d fo
r 20
8 v
pow
ersu
pply
. For
230
v p
ower
sup
ply,
dis
conn
ect r
ed le
ad a
t H2
and
reco
nnec
t it a
tH
3. T
he t
rans
form
er i
s 15
0 va
and
is
prot
ecte
d w
ith p
rimar
y an
d se
cond
ary
fuse
s.5.
FP
1 th
erm
isto
r pr
ovid
es l
ow t
emp
prot
ectio
n fo
r so
urce
wat
er.
Whe
n us
ing
antif
reez
e so
lutio
ns, c
ut J
W3
jum
per.
6.Fa
ctor
y cu
t JW
4 ju
mpe
r. D
ry c
onta
ct w
ill b
e av
aila
ble
betw
een
AL1
and
AL2
.7.
Tran
sfor
mer
sec
onda
ry g
roun
d vi
a D
elux
e D
boa
rd s
tand
offs
, an
d sc
rew
s to
cont
rol b
ox. (
Gro
und
avai
labl
e fr
om to
p tw
o st
ando
ffs a
s sh
own.
)8.
Suf
fix 1
des
igna
tes
asso
ciat
ion
with
lead
com
pres
sor,
suffi
x 2
with
lag
com
-pr
esso
r. E
xcep
tion
AL1
, AL2
, FP
1, F
P2,
are
per
lege
nd.
9.R
efer
to
LON
, or
The
rmos
tat
Inst
alla
tion,
App
licat
ion
and
Ope
ratio
n M
anua
lfo
r co
ntro
l wiri
ng to
the
unit.
Low
vol
tage
wiri
ng m
ust b
e “C
lass
1”
and
volta
gera
ting
equa
l to
or g
reat
er th
an u
nit s
uppl
y vo
ltage
.
AL
—A
larm
Rel
ay C
onta
cts
CB
—C
ircui
t Bre
aker
CC
—C
ompr
esso
r C
onta
ctor
CO
MP
—C
ompr
esso
rF
P1
—S
enso
r, S
ourc
e Lo
w T
emp
Pro
tect
ion
FP
2—
Sen
sor,
Load
Low
Tem
p P
rote
ctio
nH
P—
Hig
h P
ress
ure
Sw
itch
JW4
—Ju
mpe
r W
ire fo
r A
larm
LE
D—
Ligh
t-E
mitt
ing
Dio
deL
OC
—Lo
ss o
f Cha
rge
Pre
ssur
e S
witc
hL
ON
—Lo
cal O
pera
ting
Net
wor
kN
EC
—N
atio
nal E
lect
rica
l Cod
eP
1—
Fie
ld W
irin
g Te
rmin
al B
lock
LEG
EN
D
PD
B—
Pow
er D
istr
ibut
ion
Blo
ckR
VS
—R
ever
sing
Val
ve S
olen
oid
TR
AN
S—
Tran
sfor
mer
Fact
ory
Line
Vol
tage
Wir
ing
Fact
ory
Low
Vol
tage
Wir
ing
Fie
ld L
ine
Vol
tage
Wiri
ngF
ield
Low
Vol
tage
Wiri
ngP
rint
ed C
ircui
t Tra
ce
Rel
ay/C
onta
ctor
Coi
l
Sol
enoi
d C
oil
The
rmis
tor
Gro
und
Indi
cato
r Li
ght
G=
Gre
en, R
=R
ed(C
omp
On)
(A
larm
Lig
ht)
Circ
uit B
reak
er
Hig
h P
ress
ure
Sw
itch
Low
Pre
ssur
e S
witc
h
Fus
eF
A50-8137
LE37
1
Fig
. 9 —
Typ
ical
Aq
uazo
ne™
50P
SW
360
Del
uxe
D a
nd
LO
N C
on
tro
ller
Co
ntr
ol W
irin
g, 3
-Ph
ase
14
Y
W
O
G
R
C
AL1
AL2
A
CR
CMP1
FAN
PWR
HS1/EXH/RVS
PREMIERLINK
CR
COMPLETEC
CONTROL
J4J6 J5
J8J1
PW
R
SP
SA
LW
CM
PS
AF
E
T T T
Y1
G
R
C
AL1
CMP1
FAN
PWR
PREMIERLINK
DELUXED
CONTROL
J4
J8J1
PW
R
CM
PS
AF
E
HS2
HS1
CMP2
Y2
W1
O/W2
J6 J5
SPT
SAT
LWT
LEGEND
NOTE: Reversing valve is on in Cooling mode.
CR — Control RelayLWT — Leaving Water Temperature SensorSAT — Supply Air Temperature SensorSPT — Space Temperature Sensor
LEGEND
NOTE: Reversing valve is on in Cooling mode.
LWT — Leaving Water Temperature SensorSAT — Supply Air Temperature SensorSPT — Space Temperature Sensor
Fig. 11 — PremierLink Controller Applications with Deluxe D Control
Fig. 10 — PremierLink™ Controller Applications with Complete C Control
15
SUPPLY VOLTAGE — Operating voltage to unit must bewithin voltage range indicated on unit nameplate.
Voltages between phases must be balanced within 2%.Use the following formula to determine the percentage voltageimbalance:% Voltage Imbalance
Example: Supply voltage is 460-3-60.AB = 452-vBC = 464-vAC = 455-v
Determine maximum deviation from average voltage:(AB) 457 – 452 = 5-v(BC) 464 – 457 = 7-v(AC) 457 – 455 = 2-vMaximum deviation is 7-v.Determine percent voltage imbalance.
= 1.53%This amount of phase imbalance is satisfactory as it is
below the maximum allowable 2%.Operation on improper line voltage or excessive phase
imbalance constitutes abuse and may cause damage to electri-cal components.NOTE: If more than 2% voltage imbalance is present, contactlocal electric utility.
EXTERNAL LOOP POWER CONNECTION — If the unitis to be connected to an external loop pump or flow controller,connect the pump to the loop pump terminal block PB1. Themaximum power handling is 4 amps at 240-v. The pumps willautomatically cycle as required by the unit.
208-V OPERATION — All 208/240-v units are factorywired for 208-v. The transformers may be switched to 240-voperation (as illustrated on the wiring diagram) by switchingthe red (208-v) wire with the orange (240-v) wire at the L2terminal.
460-VOLT OPERATION — Units using 460-v and internalsecondary pump will require a neutral wire from the supplyside in order to feed accessory with 265-v.
Step 7 — Wire Low Voltage ConnectionsTHERMOSTAT CONNECTIONSThe thermostat should be wired directly to the Aquazone™control board. See Fig. 4-9.WATER FREEZE PROTECTION — The Aquazone controlallows the field selection of source fluid freeze protectionpoints through jumpers. The factory setting of jumper JW3(FP1) is set for water at 30 F. In earth loop applications, jumperJW3 should be clipped to change the setting to 10 F whenusing antifreeze in colder earth loop applications. See Fig. 13.
ACCESSORY CONNECTIONS — The terminal labeled Aon the control is provided to control accessory devices such aswater valves, electronic air cleaners, humidifiers, etc. This sig-nal operates with the compressor terminal. See Fig. 14. Referto the specific unit wiring schematic for details.
NOTE: The A terminal should only be used with 24-v signals,not line voltage signals.
= 100 xmax voltage deviation from average voltage
average voltage
Average Voltage =452 + 464 + 455
3
=1371
3
= 457
% Voltage Imbalance = 100 x7
457
IMPORTANT: Two-compressor units with Complete C orDeluxe D controls wired to terminal A will be turned off ifthe controls are in lockout mode, even if the other board isin normal operating mode.
Contactor -CC1
Transformer
C Control #1
Low
Vol
tage
Con
nect
or
Grnd
L2 L3L1
Low
Vol
tage
Con
nect
or
Contactor -CC2
C Control #2
Power DistributionBlock
Fig. 12 — Typical Field Wiring
Fig. 13 — Typical Aquazone Control BoardJumper Locations (Complete C Control Shown)
TypicalWaterValve
C
A
24 VAC
Terminal Strip
Fig. 14 — Typical Aquazone Accessory Wiring(Deluxe D Control Shown)
16
WATER SOLENOID VALVES — Water solenoid valvesmay be used on variable flow systems and ground water instal-lations. A typical well water control valve wiring which canlimit waste water in a lockout condition is shown in Fig. 14. Aslow closing valve may be required to prevent water hammer.When using a slow closing valve, special wiring conditionsneed to be considered. The valve takes approximately 60 sec-onds to open (very little water will flow before 45 seconds) andit activates the compressor only after the valve is completelyopened by closing its end switch. When wired as shown, thevalve will have the following operating characteristics:
1. Remain open during a lockout.2. Draw approximately 25 to 35-va through the “Y” signal
of the thermostat.
PRE-START-UP
System Checkout — When the installation is complete,follow the system checkout procedure outlined below beforestarting up the system. Be sure:
1. Voltage is within the utilization range specifications of theunit compressor and fan motor, and voltage is balancedfor 3-phase units.
2. Fuses, breakers and wire are correct size.3. Low voltage wiring is complete.4. Piping and system flushing is complete.5. Air is purged from closed loop system.6. System is balanced as required. Monitor if necessary.7. Isolation valves are open.8. Water control valves or loop pumps are wired.9. Transformer switched to lower voltage tap if necessary.
10. Service/access panels are in place.11. Control field-selected settings are correct.
FIELD SELECTABLE INPUTSJumpers and DIP (dual in-line package) switches on the
control board are used to customize unit operation and can beconfigured in the field.
Complete C Control Jumper Settings (SeeFig. 4-7)WATER COIL FREEZE PROTECTION (FP1) LIMITSETTING — Select jumper 3, (JW3-FP1 Low Temp) tochoose FP1 limit of 10 F or 30 F. To select 30 F as the limit,DO NOT clip the jumper. To select 10 F as the limit, clip thejumper. ALARM RELAY SETTING — Select jumper 1 (JW1-AL2Dry) for connecting alarm relay terminal (AL2) to 24 vac (R)or to remain as a dry contact (no connection). To connect AL2to R, do not clip the jumper. To set as dry contact, clip thejumper.
Complete C Control DIP Switches — TheComplete C control has one DIP switch block with fiveswitches. See Fig. 4-7.PERFORMANCE MONITOR (PM) — DIP switch 1 willenable or disable this feature. To enable the PM, set the switchto ON. To disable the PM, set the switch to OFF.
STAGE 2 — DIP switch 2 will enable or disable compressordelay. Set DIP switch to OFF for Stage 2 in which the compres-sor will have a 3-second delay before energizing. DIP switch 3is not used. DIP switch 4 is not used. DIP switch 5 is used toinitiate one or 3 tries for the FP1 fault. If water freeze protec-tion for the water coil is needed, then DIP switch 5 can be set tolock out on the FP1 fault after one try.
Deluxe D Control Jumper Settings (SeeFig. 8 and 9)WATER COIL FREEZE PROTECTION (FP1) LIMITSETTING — Select jumper 3, (JW3-FP1 Low Temp) tochoose FP1 limit of 10 F or 30 F. To select 30 F as the limit,DO NOT clip the jumper. To select 10 F as the limit, clip thejumper. ALARM RELAY SETTING — Select jumper 4 (JW4-AL2Dry) for connecting alarm relay terminal (AL2) to 24 vac (R)or to remain as a dry contact (no connection). To connect AL2to R, do not clip the jumper. To set as dry contact, clip thejumper.LOW PRESSURE SETTING — The Deluxe D control canbe configured for Low Pressure Setting (LP). Select jumper 1(JW1-LP Norm Open) for choosing between low pressure in-put normally opened or closed. To configure for normallyclosed operation, do not clip the jumper. To configure for nor-mally open operation, clip the jumper.
Deluxe D Control DIP Switches — The Deluxe Dcontrol has 2 DIP switch blocks. Each DIP switch block has 8switches and is labeled either S1 or S2 on the circuit board. SeeFig. 8 and 9.DIP SWITCH BLOCK 1 (S1) — This set of switches offersthe following options for Deluxe D control configuration:Performance Monitor (PM) — Set switch 1 to enable or dis-able performance monitor. To enable the PM, set the switch toON. To disable the PM, set the switch to OFF.Compressor Relay Staging Operation — Switch 2 will en-able or disable compressor relay staging operation. The com-pressor relay can be set to turn on with Stage 1 or Stage 2 callfrom the thermostat. This setting is used with dual stage units(units with 2 compressors and 2 Deluxe D controls) or in mas-ter/slave applications. In master/slave applications, each com-pressor and fan will stage according to its switch 2 setting. Ifswitch is set to Stage 2, the compressor will have a 3-seconddelay before energizing during Stage 2 demand. NOTE: If DIP switch is set for Stage 2, the alarm relay will notcycle during Test mode.Heating/Cooling Thermostat Type — Switch 3 provides selec-tion of thermostat type. Heat pump or heat/cool thermostatscan be selected. Select OFF for heat/cool thermostats. When inheat/cool mode, Y1 is used for cooling Stage 1, Y2 is used forcooling Stage 2, W1 is used for heating Stage 1 and O/W2 isused for heating Stage 2. Select ON for heat pump applications.In heat pump mode, Y1 used is for compressor Stage 1, Y2 isused for compressor Stage 2, W1 is used for heating Stage 3 oremergency heat, and O/W2 is used for RV (heating or cooling)depending upon switch 4 setting.O/B Thermostat Type — Switch 4 provides selection for heatpump O/B thermostats. O is cooling output. B is heating out-put. Select ON for heat pumps with O output. Select OFF forheat pumps with B output.Switches 5, 6, 7, 8 — Not used.
DIP SWITCH BLOCK 2 (S2) — Used for accessory relayconfigurations.
IMPORTANT: This can overheat the anticipators ofelectromechanical thermostats. Only use relay basedelectronic thermostats.
IMPORTANT: Jumpers and DIP switches should onlybe clipped when power to control board has been turnedoff.
17
Deluxe D Control Accessory Relay Configura-tions (See Tables 4 and 5) — The following acces-sory relay settings are applicable for Deluxe D control only:CYCLE WITH COMPRESSOR — In this configuration, therelay will be ON any time the compressor relay is on.DIGITAL NIGHT SETBACK (NSB) — In this configura-tion, the relay will be ON if the NSB input is connected toground C.NOTE: If there are no relays configured for digital NSB, thenthe NSB and OVR inputs are automatically configured formechanical operation.MECHANICAL NIGHT SETBACK — When NSB input isconnected to ground C, all thermostat inputs are ignored. Athermostat setback heating call will then be connected to theOVR input. If OVR input becomes active, then the Deluxe Dcontrol will enter night low limit (NLL) staged heating mode.The NLL staged heating mode will then provide heating duringthe NSB period.WATER VALVE (SLOW OPENING) — If relay is config-ured for water valve (slow opening), the relay will start 60 sec-onds prior to starting compressor relay.
NOTE: All other DIP switch combinations are invalid.
START-UPUse the procedure outlined below to initiate proper unit
start-up.NOTE: This equipment is designed for indoor installationonly.
Operating Limits (See Table 6)ENVIRONMENT — This equipment is designed for indoorinstallation ONLY. Extreme variations in temperature, humidi-ty and corrosive water or air will adversely affect the unit per-formance, reliability and service life.
POWER SUPPLY — A voltage variation of ± 10% of name-plate utilization voltage is acceptable.NOTE: These operating conditions are not normal or continu-ous operating conditions. It is assumed that start-up is for thepurpose of bringing the building space up to occupancytemperature.
Table 6 — 50PSW Unit Operating Limits
Unit Start-Up1. Turn off all power to unit.2. Adjust all valves to full open position. 3. Restore power to unit.4. Operate each unit in the cooling cycle. See Table 6 for
unit entering water temperatures.5. Operate each heat pump in the heating cycle immediately
after checking cooling cycle operation. NOTE: A time delay will prevent the compressor fromre-starting for approximately 5 minutes. The time delayfunction can be overridden on the Complete C controlboard.
6. If unit fails to operate, perform the following systemchecks:a. Check the voltage and current. Be sure they com-
ply with electrical data on unit nameplate.b. Check for loose terminal screws where wire con-
nections have been made on both the line and low-voltage terminal boards.
c. Check the supply and return piping. Be sure theyare properly connected to the inlet and outlet con-nections on the unit.
d. If the checks described above fail to reveal theproblem and the unit still will not operate, contacta trained service technician to ensure properdiagnosis.
Scroll Compressor Rotation — It is important to becertain compressor is rotating in the proper direction. Todetermine whether or not compressor is rotating in the properdirection:
1. Connect service gages to suction and discharge pressurefittings.
2. Energize the compressor.3. The suction pressure should drop and the discharge
pressure should rise, as is normal on any start-up.If the suction pressure does not drop and the discharge
pressure does not rise to normal levels:1. Turn off power to the unit. Install disconnect tag.2. Reverse any two of the unit power leads.
CAUTION
To avoid equipment damage, DO NOT leave system filledin a building without heat during the winter unless anti-freeze is added to system water. Condenser coils neverfully drain by themselves and will freeze unless winterizedwith antifreeze.
ACCESSORY 1RELAY OPTIONS
DIP SWITCH POSITION1 2 3
Digital NSB Off On OnWater Valve — Slow Opening On Off On
NSB — Night Setback
ACCESSORY 2RELAY OPTIONS
DIP SWITCH POSITION4 5 6
Digital NSB Off On OnWater Valve — Slow Opening On Off On
NSB — Night Setback
WARNING
When the disconnect switch is closed, high voltage is pres-ent in some areas of the electrical panel. Exercise cautionwhen working with the energized equipment.
WATER LIMITS COOLING(F)
HEATING(F)
SOURCE COILMin Entering Water 50 20Normal Entering Water 85 60Max Entering Water 110 70
LOAD COILMin Entering Water 50 60Normal Entering Water 60 100Max Entering Water 90 120
18
3. Reapply power to the unit and verify pressures are cor-rect. The suction and discharge pressure levels shouldnow move to their normal start-up levels.
After a few minutes of reverse operation, the scroll com-pressor internal overload protection will open, thus activatingthe unit lockout. This requires a manual reset. To reset, turn thethermostat on and then off.NOTE: There is a 5-minute time delay before the compressorwill start.
Flow Regulation — Flow regulation can be accom-plished by two methods. Most water control valves have a flowadjustment built into the valve. By measuring the pressure dropthrough the unit heat exchanger, the flow rate can be deter-mined. Adjust the water control valve until the flow of 1.5 to2 gpm is achieved. Since the pressure constantly varies, twopressure gages may be needed in some applications. SeeTable 7 for heat exchanger pressure drops.
An alternative method is to install a flow control device.These devices are typically an orifice of plastic material de-signed to allow a specified flow rate that are mounted on theoutlet of the water control valve. Occasionally these valvesproduce a velocity noise that can be reduced by applying someback pressure. To accomplish this, slightly close the leavingisolation valve of the water regulating device.
Cleaning and Flushing — Cleaning and flushing ofthe piping system is the single most important step to ensureproper start-up and continued efficient operation of the system.
Follow the instructions below to properly clean and flushthe system:
1. Verify electrical power to the unit is disconnected andlockout tag installed.
2. Install the system with the supply hose connected directlyto the return riser valve. Use a single length of flexiblehose.
3. Open all air vents. Fill the system with the water. DONOT allow system to overflow. Bleed all air from thesystem. Pressurize and check the system for leaks and re-pair appropriately.
4. Verify all strainers are in place. Start the pumps, and sys-tematically check each vent to ensure all air is bled fromthe system.
5. Verify make-up water is available. Adjust make-up waterappropriately to replace the air which was bled from thesystem. Check and adjust the water/air level in the expan-sion tank.
6. Raise the loop temperature to approximately 85F. Openthe drain at the lowest point in the system. Adjust themake-up water replacement rate to equal the rate of bleed.
7. Refill the system and add trisodium phosphate in a pro-portion of approximately one pound per 150 gal. of water(or other equivalent approved cleaning agent).
Raise the loop temperature to 100F. Circulate the solu-tion for a minimum of 8 to 24 hours. At the end of thisperiod, shut off the circulating pump and drain the solu-tion. Repeat system cleaning if desired.
8. When the cleaning process is complete, remove the short-circuited hose. Reconnect the hoses to the proper supply,and return the connections to each of the units. Refill thesystem and bleed off all air.
9. Test the system pH with litmus paper. The system watershould be slightly alkaline (pH of 7.5 to 8.5). Add chemi-cals, as appropriate, to maintain acidity levels.
10. When the system is successfully cleaned, flushed, refilledand bled, restore power.
11. Check the main system panels, safety cutouts and alarms.Set the controls to properly maintain loop temperatures.
Antifreeze — In areas where entering loop temperaturesdrop below 40 F or where piping will be routed through areassubject to freezing, antifreeze is needed.
CAUTION
When the compressor is rotating in the wrong direction, theunit makes an elevated level of noise and does not providecooling. Damage to compressor will occur if allowed tooperate in this manner.
To avoid possible injury or death due to electrical shock,open the power supply disconnect switch and secure it inan open position before flushing system. Install lockouttag.
CAUTION
To avoid possible damage to a plastic (PVC) piping sys-tem, do not allow temperatures to exceed 110 F.
CAUTION
DO NOT use “Stop Leak” or any similar chemical agent inthis system. Addition of these chemicals to the loop waterwill foul the system and inhibit unit operation.
19
Alcohols and glycols are commonly used as antifreezeagents. Freeze protection should be maintained to 15 F belowthe lowest expected entering loop temperature. For example, ifthe lowest expected entering loop temperature is 30 F, the leav-ing loop temperature would be 22 to 25 F. Therefore, the freezeprotection should be at 15 F (30 F – 15 F = 15 F).
Calculate the total volume of fluid in the piping system. SeeTable 8. Use the percentage by volume in Table 9 to determinethe amount of antifreeze to use. Antifreeze concentrationshould be checked from a well mixed sample using a hydrome-ter to measure specific gravity. FREEZE PROTECTION SELECTION — The 30 F FP1factory setting (water) should be used to avoid freeze damageto the unit.
Once antifreeze is selected, the JW3 jumper (FP1) shouldbe clipped on the control to select the low temperature (anti-freeze 10 F) set point to avoid nuisance faults.
Table 8 — Approximate Fluid Volume (gal.)per 100 Ft of Pipe
LEGEND
NOTE: Volume of heat exchanger is approximately 1.0 gallon.
Table 9 — Antifreeze Percentages by Volume
Cooling Tower/Boiler Systems — These systemstypically use a common loop maintained at 60 to 90 F. The useof a closed circuit evaporative cooling tower with a secondaryheat exchanger between the tower and the water loop is recom-mended. If an open type cooling tower is used continuously,chemical treatment and filtering will be necessary.
Ground Coupled, Closed Loop and PlateframeHeat Exchanger Well Systems — These systems al-low water temperatures from 30 to 110 F. The external loopfield is divided up into 2 in. polyethylene supply and returnlines. Each line has valves connected in such a way that uponsystem start-up, each line can be isolated for flushing using onlythe system pumps. Air separation should be located in the pip-ing system prior to the fluid re-entering the loop field.
OPERATION
Power Up Mode — The unit will not operate until all theinputs, terminals and safety controls are checked for normaloperation.NOTE: The compressor will have a 5-minute anti-short cycleupon power up.
Units with Aquazone™ Complete C ControlSTANDBY — The Y and W terminals are not active in Stand-by mode, however the O and G terminals may be active, de-pending on the application. The compressor will be off.COOLING — The Y and O terminals are active in Coolingmode. After power up, the first call to the compressor will initi-ate a 5 to 80 second random start delay and a 5-minute anti-short cycle protection time delay. After both delays are com-plete, the compressor is energized. NOTE: On all subsequent compressor calls the random startdelay is omitted.HEATING STAGE 1 — Terminal Y is active in heatingStage 1. After power up, the first call to the compressor willinitiate a 5 to 80 second random start delay and a 5-minute anti-short cycle protection time delay. After both delays arecomplete, the compressor is energized. NOTE: On all subsequent compressor calls the random startdelay is omitted.HEATING STAGE 2 — To enter Stage 2 mode, terminal W isactive (Y is already active). Also, the G terminal must be activeor the W terminal is disregarded.
Units with Aquazone Deluxe D ControlSTANDBY — The compressor will be off. The reversingvalve (RV) relays will be on if inputs are present. HEATING STAGE 1 — In Heating Stage 1 mode, the fan en-able and compressor relays are turned on immediately. Oncethe demand is removed, the relays are turned off and the con-trol reverts to standby mode. If there is a master/slave or dualcompressor application, all compressor relays and related func-tions will operate per their associated DIP switch 2 setting onS1.HEATING STAGE 2 — In Heating Stage 2 mode, the com-pressor relays remain on. The control reverts to Heating Stage1 mode once demand is removed. If there is a master/slave ordual compressor application, all compressor relays and relatedfunctions will operate per their associated DIP switch 2 settingon S1.COOLING STAGE 1 — In Cooling Stage 1 mode, the com-pressor and RV relays are turned on immediately. If configuredas stage 2 (DIP switch set to OFF) then the compressor and fanwill not turn on until there is a stage 2 demand. The compressorrelays are turned off immediately when the Cooling Stage 1 de-mand is removed. The control reverts to standby mode. TheRV relay remains on until there is a heating demand. If there isa master/slave or dual compressor application, all compressorrelays and related functions will track with their associated DIPswitch 2 on S1.COOLING STAGE 2 — In Cooling Stage 2 mode, the com-pressor and RV relays remain on. The control reverts to Cool-ing Stage 1 mode once the demand is removed. If there is amaster/slave or dual compressor application, all compressor re-lays and related functions will track with their associated DIPswitch 2 on S1.NIGHT LOW LIMIT (NLL) STAGED HEATING — In NLLstaged heating mode, the override (OVR) input becomesactive and is recognized as a call for heating and the controlwill immediately go into a Heating Stage 1 mode. With anadditional 30 minutes of NLL demand, the control will go into
IMPORTANT: All alcohols should be pre-mixed andpumped from a reservoir outside of the building orintroduced under water level to prevent alcohols fromfuming.
Heating Stage 2 mode. With another additional 30 minutes ofNLL demand, the control will go into Heating Stage 3 mode.
SYSTEM TEST
System testing provides the ability to check the controloperation. The control enters a 20-minute Test mode by mo-mentarily shorting the test pins. All time delays are increased15 times. See Fig. 15.
Test Mode — Enter the Test mode on Complete C orDeluxe D controls by momentarily shorting the test terminals.The Complete C or Deluxe D control will enter a 20-minutetest mode period in which all time delays are sped up 15 times.
Upon entering Test mode, the status LED (light-emitting di-ode) will flash a code representing the last fault. For diagnosticease at the thermostat, the alarm will also cycle during Testmode. The alarm relay will cycle on and off similar to the sta-tus LED to indicate a code representing the last fault, at thethermostat. Test mode can be exited by shorting the test termi-nals for 3 seconds. See Tables 10-12.NOTE: Deluxe D control has a flashing code and alarm relaycycling code that will both have the same numerical label.For example, flashing code 1 will have an alarm relay cyclingcode 1. Code 1 indicates the control has not faulted since thelast power off to power on sequence.
Table 10 — Complete C Control Current LED Status and Alarm Relay Operations
LEGEND
NOTES:1. Slow flash is 1 flash every 2 seconds.2. Fast flash is 2 flashes every 1 second.3. EXAMPLE: “Flashing Code 2” is represented by 2 fast flashes followed
by a 10-second pause. This sequence will repeat continually until thefault is cleared.
Table 11 — Complete C Control LED Code andFault Descriptions
LEGEND
CR
R
C
CCCCGBR BRG
TestOff On
FP1JW3
TESTMODEPINS
Fig. 15 — Test Mode Pins Location
LED STATUS DESCRIPTION OFOPERATION ALARM RELAY
On
Normal Mode Open
Normal Mode withPM Warning
Cycle(Closed 5 sec.,Open 25 sec.)
Off Control is non-functional Open
Slow Flash
Fault Retry Open
Over/UnderVoltage Shutdown
Open(Closed after15 minutes)
Fast Flash Lockout ClosedFlashing Code 1
Test Mode — No faultin memory Cycling Code 1
FlashingCode 2
Test Mode — HP Faultin memory Cycling Code 2
FlashingCode 3
Test Mode — LP Faultin memory Cycling Code 3
FlashingCode 4
Test Mode — FP1 Faultin memory Cycling Code 4
FlashingCode 5
Test Mode — FP2 Faultin memory Cycling Code 5
FlashingCode 7
Test Mode — Over/Undershutdown in memory Cycling Code 7
FlashingCode 8
Test Mode — PMin memory Cycling Code 8
FlashingCode 9
Test Mode — FP1/FP2swapped fault in memory Cycling Code 9
CO — Condensate OverflowFP — Freeze ProtectionHP — High PressureLED — Light-Emitting DiodeLP — Low PressurePM — Performance Monitor
LEDCODE FAULT DESCRIPTION
1 No fault in memory There has been no fault since the last power-down to power-up sequence
2 High-Pressure Switch HP Open Instantly3 Low-Pressure Switch LP open for 30 continuous
seconds before or during acall (bypassed for first60 seconds)
4 Freeze Protection(Source) Coax — FP1
FP1 below Temp limit for30 continuous seconds(bypassed for first 60 seconds of operation)
5 Freeze Protection (Load)Coil — FP2
FP2 below Temp limit for30 continuous seconds(bypassed for first 60 seconds of operation)
7(Autoreset)
Over/Under VoltageShutdown
"R" power supply is <19 vacor >30 vac
8 PM Warning Performance MonitorWarning has occurred.
9 FPI and FP2Thermistors are swapped
FP1 temperature is higher than FP2 in heating/test mode, or FP2 temperature is higher than FP1 in cooling/test mode.
FP — Freeze ProtectionHP — High PressureLP — Low Pressure
21
Table 12 — Aquazone™ Deluxe D Control Current LED Status and Alarm Relay Operations
LEGEND NOTES:1. If there is no fault in memory, the Fault LED will flash code 1.2. Codes will be displayed with a 10-second Fault LED pause.3. Slow flash is 1 flash every 2 seconds.4. Fast flash is 2 flashes every 1 second.5. EXAMPLE: “Flashing Code 2” is represented by 2 fast flashes followed
by a 10-second pause. This sequence will repeat continually until thefault is cleared.
Retry Mode — In Retry mode, the status LED will start toflash slowly to signal that the control is trying to recover froman input fault. The control will stage off the outputs and try toagain satisfy the thermostat used at terminal Y. Once the ther-mostat input calls are satisfied, the control will continue normaloperation. NOTE: If 3 consecutive faults occur without satisfying thethermostat input call to terminal Y, the control will go intolockout mode. The last fault causing the lockout is stored inmemory and can be viewed by entering Test mode.
Aquazone™ Deluxe D Control LED Indica-tors — There are 3 LED indicators on the Deluxe D control:STATUS LED — Status LED indicates the current status ormode of the Deluxe D control. The Status LED light is green.TEST LED — Test LED will be activated any time the De-luxe D control is in Test mode. The Test LED light is yellow.FAULT LED — Fault LED light is red. The fault LED willalways flash a code representing the last fault in memory. Ifthere is no fault in memory, the fault LED will flash code 1 onthe display and appear as 1 fast flash alternating with a10-second pause. See Table 12.
SERVICEPerform the procedures outlined below periodically, as
indicated.
Water Coil — Keep all air out of the water coil. Checkopen loop systems to be sure the well head is not allowing airto infiltrate the water line. Always keep lines airtight.
Inspect heat exchangers regularly, and clean more frequent-ly if the unit is located in a “dirty” environment. The heatexchanger should be kept full of water at all times. Open loopsystems should have an inverted P trap placed in the dischargeline to keep water in the heat exchanger during off cycles.Closed loop systems must have a minimum of 15 psig duringthe summer and 40 psig during the winter.
Check P trap frequently for proper operation.
Refrigerant System — Verify air and water flow ratesare at proper levels before servicing. To maintain sealed circuit-ry integrity, do not install service gages unless unit operationappears abnormal.
Condenser Cleaning — Water-cooled condensers mayrequire cleaning of scale (water deposits) due to improperlymaintained closed-loop water systems. Sludge build-up may
DESCRIPTION STATUS LED(Green)
TEST LED(Yellow) FAULT LED (Red) ALARM RELAY
Normal Mode On Off Flash Last Fault Code in Memory Open
Normal Mode with PM On Off Flashing Code 8 Cycle (closed 5 sec,open 25 sec, …)
Control is Non-Functional Off Off Off OpenTest Mode — On Flash Last Fault Code in Memory Cycling Appropriate Code
Night Setback Flashing Code 2 — Flash Last Fault Code in Memory —ESD Flashing Code 3 — Flash Last Fault Code in Memory —
Invalid T-stat Inputs Flashing Code 4 — Flash Last Fault Code in Memory —No Fault in Memory On Off Flashing Code 1 Open
HP Fault Slow Flash Off Flashing Code 2 OpenLP Fault Slow Flash Off Flashing Code 3 OpenFP1 Fault Slow Flash Off Flashing Code 4 OpenFP2 Fault Slow Flash Off Flashing Code 5 OpenCO Fault Slow Flash Off Flashing Code 6 Open
Over/Under Voltage Slow Flash Off Flashing Code 7 Open (closed after 15 minutes)HP Lockout Fast Flash Off Flashing Code 2 ClosedLP Lockout Fast Flash Off Flashing Code 3 ClosedFP1 Lockout Fast Flash Off Flashing Code 4 ClosedFP2 Lockout Fast Flash Off Flashing Code 5 ClosedCO Lockout Fast Flash Off Flashing Code 6 Closed
CO — Condensate OverflowESD — Emergency ShutdownFP — Freeze ProtectionHP — High PressureLP — Low PressurePM — Performance Monitor
IMPORTANT: When a compressor is removed from thisunit, system refrigerant circuit oil will remain in the com-pressor. To avoid leakage of compressor oil, the refrigerantlines of the compressor must be sealed after it is removed.
IMPORTANT: To avoid the release of refrigerant into theatmosphere, the refrigerant circuit of this unit must only beserviced by technicians which meet local, state and federalproficiency requirements.
IMPORTANT: All refrigerant discharged from this unitmust be recovered without exception. Technicians must fol-low industry accepted guidelines and all local, state and fed-eral statutes for the recovery and disposal of refrigerants.
WARNING
To prevent injury or death due to electrical shock or contactwith moving parts, open unit disconnect switch before ser-vicing unit.
CAUTION
To avoid fouled machinery and extensive unit clean-up,DO NOT operate units without filters in place. DO NOTuse equipment as a temporary heat source duringconstruction.
22
need to be cleaned in an open water tower system due toinduced contaminants.
Local water conditions may cause excessive fouling orpitting of tubes. Condenser tubes should therefore be cleaned atleast once a year, or more often if the water is contaminated.
Proper water treatment can minimize tube fouling andpitting. If such conditions are anticipated, water treatmentanalysis is recommended. Refer to the Carrier System DesignManual, Part 5, for general water conditioning information.
Clean condensers with an inhibited hydrochloric acid solu-tion. The acid can stain hands and clothing, damage concrete,and, without inhibitor, damage steel. Cover surroundings toguard against splashing. Vapors from vent pipe are not harmful,but take care to prevent liquid from being carried over by thegases.
Warm solution acts faster, but cold solution is just as effec-tive if applied for a longer period.
GRAVITY FLOW METHOD — Do not add solution fasterthan vent can exhaust the generated gases.
When condenser is full, allow solution to remain overnight,then drain condenser and flush with clean water. Follow acidmanufacturer’s instructions. See Fig. 16.
FORCED CIRCULATION METHOD — Fully open ventpipe when filling condenser. The vent may be closed whencondenser is full and pump is operating. See Fig. 17.
Regulate flow to condenser with a supply line valve. Ifpump is a nonoverloading type, the valve may be fully closedwhile pump is running.
For average scale deposit, allow solution to remain in con-denser overnight. For heavy scale deposit, allow 24 hours.Drain condenser and flush with clean water. Follow acid manu-facturer’s instructions.
Checking System Charge — Units are shipped withfull operating charge. If recharging is necessary:
1. Insert thermometer bulb in insulating rubber sleeve onliquid line near filter drier. Use a digital thermometer forall temperature measurements. DO NOT use a mercuryor dial-type thermometer.
2. Connect pressure gage to discharge line near compressor.3. After unit conditions have stabilized, read head pressure
on discharge line gage.NOTE: Operate unit a minimum of 15 minutes beforechecking charge. From standard field-supplied Pressure-Temperature chart for R-410A, find equivalent saturatedcondensing temperature.
4. Read liquid line temperature on thermometer; thensubtract from saturated condensing temperature. The dif-ference equals subcooling temperature.
Refrigerant Charging
NOTE: Do not vent or depressurize unit refrigerant to atmo-sphere. Remove and recover refrigerant following acceptedpractices.
TROUBLESHOOTINGWhen troubleshooting problems with a WSHP, refer to
Table 13.
CAUTION
Follow all safety codes. Wear safety glasses and rubbergloves when using inhibited hydrochloric acid solution.Observe and follow acid manufacturer’s instructions.
Fig. 16 — Gravity Flow Method
FILL CONDENSER WITHCLEANING SOLUTION. DONOT ADD SOLUTIONMORE RAPIDLY THANVENT CAN EXHAUSTGASES CAUSED BYCHEMICAL ACTION.
PAIL
FUNNEL
CONDENSER
PAIL
3’ TO 4’
VENTPIPE 5’ APPROX
1”PIPE
WARNING
To prevent personal injury, wear safety glasses and gloveswhen handling refrigerant. Do not overcharge system —this can cause compressor flooding.
SUCTION
PUMPSUPPORT
TANK
FINE MESHSCREEN
RETURN
GAS VENTPUMP PRIMINGCONN.
GLOBEVALVES
SUPPLY
1” PIPE
CONDENSER
REMOVE WATERREGULATING VALVE
Fig. 17 — Forced Circulation Method
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Table 13 — Troubleshooting
LEGEND
FAULT HEATING COOLING POSSIBLE CAUSE SOLUTIONMain Power Problems X X Green Status LED Off Check line voltage circuit breaker and disconnect.
Check for line voltage between L1 and L2 on the contactor.Check for 24-vac between R and C on controller.Check primary/secondary voltage on transformer.
HP Fault — Code 2High Pressure
X Reduced or no water flow in cooling
Check pump operation or valve operation/setting.Check water flow adjust to proper flow rate.
X Water temperature out of range in cooling
Bring water temperature within design parameters.
X X Overcharged with refrigerant Check superheat/subcooling vs. typical operating condition.X X Bad HP switch Check switch continuity and operation. Replace.
LP/LOC Fault — Code 3Low Pressure/Loss of Charge
X X Insufficient charge Check for refrigerant leaks.X Compressor pump down at
start-upCheck charge and start-up water flow.
FP1 Fault — Code 4Source Water Freeze Protection
X Reduced or no water flow in heating
Check pump operation or water valve operation/setting.Plugged strainer or filter. Clean or replace.Check water flow adjust to proper flow rate.
X Inadequate antifreeze level Check antifreeze density with hydrometer.X Improper freeze protect setting
(30F vs 10F)Clip JW3 jumper for antifreeze (10F) use.
X Water temperature out of range Bring water temperature within design parameters.X X Bad thermistor Check temperature and impedance correlation.
FP2 Fault — Code 5Load Coil FreezeProtection
X Reduced or no water flow in heating
Check pump operation or water valve operation/setting.Plugged strainer or filter. Clean or replace.Check water flow adjust to proper flow rate.
X Improper freeze protect setting (30F vs 10F)
Clip JW3 jumper for antifreeze (10F) use.
X Water temperature out of range Bring water temperature within design parameters.X X Bad thermistor Check temperature and impedance correlation.
Over/Under Voltage —Code 7(Auto Resetting)
X X Under voltage Check power supply and 24-vac voltage before and during operation.Check power supply wire size.Check compressor starting.Check 24-vac and unit transformer tap for correct power supply voltage.
X X Over voltage Check power supply voltage and 24-vac before and during operation.Check 24-vac and unit transformer tap for correct power supply voltage.
Performance Monitor —Code 8
X Heating mode FP2>125F Check for overcharged unit.X Cooling mode FP1>125F OR
FP2< 40FCheck for poor water flow or airflow.
No Fault Code Shown X X No compressor operation See scroll compressor rotation section.X X Compressor overload Check and replace if necessary.X X Control board Reset power and check operation.
Unit Short Cycles X X Unit in Test mode Reset power or wait 20 minutes for auto exit.X X Unit selection Unit may be oversized for space. Check sizing for actual load of space.X X Compressor overload Check and replace if necessary.
Unit Does Not Operate in Cooling
X Reversing valve Set for cooling demand and check 24-vac on RV coil and at control.If RV is stuck, run high pressure up by reducing water flow and while operat-ing engage and disengage RV coil voltage to push valve.
X Thermostat setup Check for ‘O’ RV setup not ‘B’.X Thermostat wiring Check O wiring at heat pump. Jumper O and R for RV coil.
Insufficient Capacity/Not Cooling or HeatingProperly
X X Low refrigerant charge Check superheat and subcooling.X X Restricted metering device Check superheat and subcooling. Replace.
X Defective reversing valve Perform RV touch test.X X Thermostat improperly located Check location and for air drafts behind thermostat.X X Unit undersized Recheck loads and sizing. Check sensible cooling load and heat pump
capacity.X X Scaling in water heat exchanger Perform scaling check and clean if necessary.X X Inlet water too hot or cold Check load, loop sizing, loop backfill, ground moisture.
High Head Pressure X Scaling in water heat exchanger Perform scaling check and clean if necessary.X X Unit overcharged Check superheat and subcooling. Reweigh in charge.X X Non-condensables in system Vacuum system and reweigh in charge.X X Restricted metering device Check superheat and subcooling. Replace.
Low Suction Pressure X Reduced water flow in heating Check pump operation or water valve operation/setting.Plugged strainer or filter. Clean or replace.Check water flow adjust to proper flow rate.
X Water temperature out of range Bring water temperature within design parameters.
FP — Freeze ProtectionHP — High PressureLED — Light-Emitting DiodeLOC — Loss of ChargeLP — Low PressureRV — Reversing Valve
810
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Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Catalog No. 04-53500054-01 Printed in U.S.A. Form 50PSW-2SI Pg 26 810 7-09 Replaces: 50PSW-1SI
MODEL NO.:___________________________ SERIAL NO.:____________________ DATE:_________
LOOP TYPE:___________________________ ANTIFREEZE TYPE AND %:_________________________
I. PRE-START-UP
DOES THE UNIT VOLTAGE CORRESPOND WITH THE SUPPLY VOLTAGE AVAILABLE? (Y/N)
HAVE THE POWER AND CONTROL WIRING CONNECTIONS BEEN MADE AND TERMINALS TIGHT? (Y/N)
HAVE WATER CONNECTIONS BEEN MADE AND IS FLUID AVAILABLE AT HEAT EXCHANGER?(Y/N)
HAS PUMP BEEN TURNED ON AND ARE ISOLATION VALVES OPEN? (Y/N)
HAS CONDENSATE CONNECTION BEEN MADE AND IS A TRAP INSTALLED? (Y/N)
IS AN AIR FILTER INSTALLED? (Y/N)
II. START-UP
IS FAN OPERATING WHEN COMPRESSOR OPERATES? (Y/N)
IF 3-PHASE SCROLL COMPRESSOR IS PRESENT, VERIFY PROPER ROTATION PER INSTRUCTIONS.(Y/N)
UNIT VOLTAGE — COOLING OPERATION
PHASE AB VOLTS PHASE BC VOLTS PHASE CA VOLTS(if 3 phase) (if 3 phase)
PHASE AB AMPS PHASE BC AMPS PHASE CA AMPS (if 3 phase) (if 3 phase)
CONTROL VOLTAGE
IS CONTROL VOLTAGE ABOVE 21.6 VOLTS? (Y/N) .IF NOT, CHECK FOR PROPER TRANSFORMER CONNECTION.
TEMPERATURES
FILL IN THE ANALYSIS CHART ATTACHED.
COAXIAL HEATEXCHANGER
COOLING CYCLE:FLUID IN F FLUID OUT F PSI FLOW
HEATING CYCLE:FLUID IN F FLUID OUT F PSI FLOW
AIR COIL COOLING CYCLE:AIR IN F AIR OUT F
HEATING CYCLE:AIR IN F AIR OUT F
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Catalog No. 04-53500054-01 Printed in U.S.A. Form 50PSW-2SI Pg CL-2 810 7-09 Replaces: 50PSW-1SI
Copyright 2009 Carrier Corporation
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HEATING AND COOLING CYCLE ANALYSIS
HEAT OF EXTRACTION (ABSORPTION) OR HEAT OF REJECTION =
FLOW RATE (GPM) x TEMP. DIFF. (DEG. F) x FLUID FACTOR* =(Btu/hr)
SUPERHEAT = SUCTION TEMPERATURE – SUCTION SATURATION TEMPERATURE= (DEG F)
SUBCOOLING = DISCHARGE SATURATION TEMPERATURE – LIQUID LINE TEMPERATURE= (DEG F)
4a Saturation Temperature4b Subcooling5 Liquid Line Temperature6 Source Water In Temperature7 Source Water Out Temperature Temperature Difference —8 Source Water In Pressure9 Source Water Out Pressure
9a Pressure Drop9b Flow Rate (gpm)10 Load Water In Temperature11 Load Water Out Temperature Temperature Difference —12 Load Water In Pressure13 Load Water Out Pressure
13a Pressure Drop13b Flow Rate (gpm)
COMPRESSOR
DISCHARGE
SUCTION
HWG*
EXPANSIONVALVE FILTER
DRIER
REVERSINGVALVE
HEATING POSITION COOLING POSITION
1
COAX
CO
AX
5
1210
1311
9
7
8
6
4
3
2
FP2:HEATINGLIQUIDLINE
5 FP1:COOLINGLIQUIDLINE
CONDENSER (HTG)EVAPORATOR (CLG)
CONDENSER (COOLING)EVAPORATOR (HEATING)
WATER-TO-WATER UNITS REFRIG FLOW - HEATING REFRIG FLOW - COOLING
Source
Load
LEGEND
*Turn off HWG (hot water generator)before troubleshooting.
