50pch Pcv Installation Startup Service 50pc 3si

8/20/2019 50pch Pcv Installation Startup Service 50pc 3si

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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. 04-53500094-01 Printed in U.S.A. Form 50PC-3SI Pg 1 3-11 Replaces: 50PC-2S

Installation, Start-Up, and

Service InstructionsCONTENTS

Page

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . .1,2GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22Step 1 — Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . . 2Step 2 — Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 2• STORAGE• PROTECTION• INSPECT UNITStep 3 — Locate Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7• FIELD CONVERSION OF DISCHARGE AIR

Step 4 — Mount the Unit . . . . . . . . . . . . . . . . . . . . . . . . . 8• HORIZONTAL UNITS• VERTICAL UNITSStep 5 — Check Duct System . . . . . . . . . . . . . . . . . . . . 8• SOUND ATTENUATION• EXISTING DUCT SYSTEMStep 6 — Install Condensate Drain . . . . . . . . . . . . . . . 8• HORIZONTAL UNITS• VERTICAL UNITS• VENTINGStep 7 — Pipe Connections . . . . . . . . . . . . . . . . . . . . . . 9• WATER LOOP APPLICATIONS• GROUND LOOP APPLICATIONS• INSTALLATION OF SUPPLY AND RETURN HOSE

KIT

Step 8 — Wire Field Power Supply . . . . . . . . . . . . . . 10• POWER CONNECTION• SUPPLY VOLTAGE• 208-VOLT OPERATION• 460-VOLT OPERATIONStep 9 — Wire Field Controls. . . . . . . . . . . . . . . . . . . . 20• THERMOSTAT CONNECTIONS• WATER FREEZE PROTECTION• AIR COIL FREEZE PROTECTION• ACCESSORY CONNECTIONS• WATER SOLENOID VALVES• WSHP OPEN WIRING

PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22,23System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22PSC Blower Speed Selection . . . . . . . . . . . . . . . . . . 22FIELD SELECTABLE INPUTS . . . . . . . . . . . . . . . .24,25Complete C Control Jumper Settings. . . . . . . . . . . 24Complete C Control DIP Switches . . . . . . . . . . . . . . 24Deluxe D Control Jumper Settings . . . . . . . . . . . . . 24Deluxe D Control DIP Switches . . . . . . . . . . . . . . . . 24Deluxe D Control Accessory Relay

Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Water Valve (Slow Opening) . . . . . . . . . . . . . . . . . . . 25Outside Air Damper (OAD) . . . . . . . . . . . . . . . . . . . . 25START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25-33Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Scroll Compressor Rotation. . . . . . . . . . . . . . . . . . . . . 26Unit Start-Up Cooling Mode . . . . . . . . . . . . . . . . . . . . . 26

Page

Unit Start-Up Heating Mode . . . . . . . . . . . . . . . . . . . . . 30Unit Start-Up with WSHP Open Controls . . . . . . . . 30Flow Regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32Cooling Tower/Boiler Systems . . . . . . . . . . . . . . . . . . 32OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-36Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33Units with Aquazone Complete C Control . . . . . . . 33Units with Aquazone Deluxe D Control . . . . . . . . . . 33Units with WSHP Open Multiple Protocol. . . . . . . . 33

COMPLETE C AND DELUXE D BOARDSYSTEM TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36-38Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36WSHP Open Test Mode. . . . . . . . . . . . . . . . . . . . . . . . . . 36Retry Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37Aquazone Deluxe D Control LED Indicators . . . . . 37SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38-40Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38Water Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38Condensate Drain Pans . . . . . . . . . . . . . . . . . . . . . . . . . 38Refrigerant System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38Fan Motors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38Condensate Drain Cleaning . . . . . . . . . . . . . . . . . . . . . 38Air Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Condenser Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Checking System Charge . . . . . . . . . . . . . . . . . . . . . . . 39Refrigerant Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39Air Coil Fan Motor Removal . . . . . . . . . . . . . . . . . . . . . 40Replacing the WSHP Open Controller’s

Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 40-42Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40Control Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40WSHP Open Controller . . . . . . . . . . . . . . . . . . . . . . . . . . 40APPENDIX A — WSHP OPEN SCREEN

CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . 43-4850PCH,PCV START-UP CHECKLIST . . . . . CL-1, CL-2

SAFETY CONSIDERATIONSInstallation and servicing of air-conditioning equipment can

be hazardous due to system pressure and electrical components. Only trained and qualified service personnel shouldinstall, repair, or service air-conditioning equipment.

Untrained personnel can perform basic maintenance func-tions of cleaning coils and filters and replacing filters. All otheroperations should be performed by trained service personnelWhen working on air-conditioning equipment, observe precautions in the literature, tags and labels attached to the unitand other safety precautions that may apply.

IMPORTANT: Read the entire instruction manual beforestarting installation.

AQUAZONE™50PCH,PCV006-060

Compact High-Efficiency Water Source Heat Pumpswith PURON ® Refrigerant (R-410A)


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Improper installation, adjustment, alteration, service, mainte-nance, or use can cause explosion, fire, electrical shock or other conditions which may cause personal injury or property dam-age. Consult a qualified installer, service agency, or your distrib-utor or branch for information or assistance. The qualified in-staller or agency must use factory-authorized kits or accessorieswhen modifying this product. Refer to the individual instruc-tions 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 fireextinguisher available. Read these instructions thoroughly and

follow 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 or death. CAUTION is used to identify unsafe practices, whichwould result in minor personal injury or product and propertydamage.

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.

GENERAL

This Installation and Start-Up Instructions literature is for Aquazone™ water source heat pump systems.

Water source heat pumps (WSHPs) are single-package hori-zontally and vertically mounted units with electronic controlsdesigned for year-round cooling and heating. AquazoneWSHPs are available in the following unit configurations:

• PCH standard efficiency with horizontal airflow andright, left or back discharge

• PCV standard efficiency with vertical airflow and topdischarge

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 listed below to prepare a unit for installation. See Table 1 for unit physical data.

HORIZONTAL UNITS (50PCH) — Horizontal units aredesigned for indoor installation only. Be sure to allow adequatespace around the unit for servicing. See Fig. 1 for overall unitdimensions. Refer to Fig. 2 for an illustration of a typical hori-zontal installation.

VERTICAL UNITS (50PCV) — Vertical units are designedfor indoor installations. While vertical units are typically

installed in a floor-level closet or a small mechanical room,the unit access guidelines for these units are very similar tothose described for horizontal units. See Fig. 3 for overall di-mensions. Refer to Fig. 4 for an example of a typical verticalinstallation.

Step 2 — Check Unit — Upon receipt of shipment atthe jobsite, carefully check the shipment against the bill of lading. 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 that the location chosen for unit installation pro-vides ambient temperatures maintained above freezing.Well water applications are especially susceptible tofreezing.

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. Check local codes to be sure a secondary drain pan is notrequired under the unit.

5. Be sure unit is mounted at a height sufficient to providean adequate slope of the condensate lines. If an appropri-ate slope cannot be achieved, a field-supplied condensate pump may be required.

6. Provide sufficient space for duct connection.

7. Provide adequate clearance for filter replacement anddrain pan cleaning. Do not allow piping, conduit, etc. to block filter access.

8. Provide sufficient access to allow maintenance andservicing of the fan and fan motor, compressor and coils.Removal of the entire unit from the closet should not benecessary.

9. Provide an unobstructed path to the unit within the closetor mechanical room. Space should be sufficient to allowremoval of unit if necessary.

10. Provide ready access to water valves and fittings, and

screwdriver access to unit side panels, discharge collar,and all electrical connections.

11. Where access to side panels is limited, pre-removal of thecontrol box side mounting screws may be necessary for future servicing.

STORAGE — If the equipment is not needed immediately atthe jobsite, it should be left in its shipping carton and stored in aclean, dry area of the building or in a warehouse. Units must bestored in an upright position at all times. If carton stacking isnecessary, stack units a maximum of 3 high. Do not removeany equipment from its shipping package until it is needed for installation.

PROTECTION — Once the units are properly positioned onthe jobsite, cover them with either a shipping carton, vinyl film,

WARNING

Electrical shock can cause personal injury or death. Beforeinstalling or servicing system, always turn off main power to system. There may be more than one disconnect switch.Turn off accessory heater power if applicable.

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 responsibility 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 constructionprocess. The mechanical components and filters used in

these units quickly become clogged with constructiondirt and debris which may cause system damage.


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or an equivalent protective covering. Cap open ends of pipesstored on the jobsite. This precaution is especially important inareas where painting, plastering, or spraying of fireproof mate-rial, etc. is not yet complete. Foreign material that accumulateswithin the units can prevent proper start-up and necessitatecostly clean-up operations.

Before installing any of the system components, be sure toexamine each pipe, fitting, and valve, and remove any dirt or foreign material found in or on these components.

INSPECT UNIT — To prepare the unit for installation, complete 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. Do not remove the packaging until the unit is ready foinstallation.

4. Verify that the refrigerant tubing is free of kinks or dentsand that it does not touch other unit components.

5. Inspect all electrical connections. Be sure connections areclean and tight at the terminals.

6. Loosen compressor bolts until the compressor rides freelyon springs. Remove shipping restraints.

7. Remove the four 1/4 in. shipping bolts from compressorsupport plate (two bolts on each side) to maximize vibra-

tion and sound alternation.

8. Remove any blower support cardboard from inlet of the blower.

9. Locate and verify any accessory kit located in compressosection.

10. Remove any access panel screws that may be difficult toremove once unit is installed.

Table 1 — Physical Data — 50PCH,PCV Units

LEGEND *Front is located at control box end.NOTES:1. All units have grommet compressor mountings, and 1 / 2-in. and

3 / 4-in. electrical knockouts.2. Maximum water working pressure is 500 psig.

CAUTION

DO NOT store or install units in corrosive environments or in locations subject to temperature or humidity extremes(e.g., attics, garages, rooftops, etc.). Corrosive conditionsand high temperature or humidity can significantly reduce performance, reliability, and service life. Always moveunits in an upright position. Tilting units on their sides maycause equipment damage.

CAUTION

Failure to remove shipping brackets from spring-mountedcompressors will cause excessive noise and could causecomponent failure due to added vibration.

50PCH,PCV UNIT 006 009 012 015 018 024 030 036 042 048 060

COMPRESSOR (1 each) Rotary Scroll

REFRIGERANT TYPE R-410AFactory Charge (oz) 17 18.5 23 32 43 43 47 50 70 74 82

FAN MOTOR AND BLOWERFan Motor Type/Speeds PSC/3Fan Motor (hp) 1 / 25 1 / 10 1 / 10 1 / 6 1 / 6 1 / 4 3 / 4 1 / 2 3 / 4 3 / 4 1Blower Wheel Size (Dia x W) (in.) 5 x 5 6 x 5 8 x 7 9 x 7 9 x 8 10 x 10 11 x 10

COAX VOLUME (gal.) 0.123 0.143 0.167 0.286 0.450 0.286 0.323 0.323 0.890 0.738 0.939

WATER CONNECTION SIZE FPT (in.) 1 / 2 3 / 4 1

HORIZONTAL

Air Coil Dimensions (H x W)(in.) 10 x 15 16 x 22 20 x 25 20 x 35Standard Filter - (Qty)1 in. Throwaway

(1) 10 x 18 (1) 16 x 25 (1) 18 x 25(1) 20 x 28 or

(2) 20 x 14(1) 20 x 24,(1) 20 x 14

Weight (lb)Operating 103 105 114 153 158 174 182 203 218 263 278Packaged 113 115 124 158 163 179 187 209 224 270 285

Corner Weight (lb)*Left-Front 37 38 42 53 55 62 67 75 81 98 103Right-Front 24 24 26 36 37 40 41 47 50 60 64Left-Back 23 23 25 34 35 39 40 44 48 58 61Right-Back 19 20 21 30 31 33 34 37 39 47 75

VERTICALAir Coil Dimensions (H x W)(in.) 10 x 15 20 x 17.25 24 x 17.75 24 x 28.25Standard Filter - (Qty)1 in. Throwaway

(1) 10 x 18 (1) 20 x 20 (1) 24 x 24(1) 14 x 24,(1) 18 x 24

Weight (lb)Operating 103 105 114 153 158 189 197 203 218 263 278Packaged 113 115 124 158 163 194 202 209 224 270 285

FPT — Female Pipe ThreadPSC — Permanent Split Capacitor


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F

RIGHT RETURN STRAIGHT DISCHARGE

FRONT

LN

O

M

RIGHT RETURN

FRONT

LEFT/ STRAIGHTDISCHARGE

CSP

BACKDISCHARGE

CONDENSATE3 / 4" FPT

3.3"[83.8 MM]

0.7"

[17.8 MM]

FRONT-VIEW

E D

KJ 2

1

1.1 [27.9 MM]

A

CAP

BSP

RIGHT RETURN RIGHT VIEW -AIR COIL OPENING

AIR COIL

C

TS

B

R

Q

FRONT

L

N O

M

LEFT RETURN STRAIGHT DISCHARGE

FRONT

BSP

LEFT RETURN RIGHT RETURN

AIR COIL

CSP

FRONT

LEFT RETURN LEFT VIEW -AIR COIL OPENING

1.75 [44.5 MM]

C

T

R

QS

B

UNIT HANGER DETAIL

U

V F R O N T

WMODEL U V W

015-030 43.1 [109.5] 22.2 [56.4] 18.0 [45.7]

036-042 47.1 [119.6] 22.2 [56.4] 18.0 [45.7]

048-060 54.1 [137.4] 26.2 [66.5] 22.0 [55.9]

RIGHT RETURN BACK DISCHARGE

A

A I R C O I L S I D E

C

PN

O

M

CSP

BSP

2 FT [610 MM] SERVICEACCESS

FRONT

LEFT RETURN

0.7" [17.8 MM]

3.3"[83.8 MM]

CSP

CONDENSATE3 / 4" FPT

2 FT [610 MM] SERVICEACCESS

A I R C O I L S I D E

M

A

C

LEFT RETURN BACK DISCHARGE

NO

P

BSP

BLOWER

OUTLET

BLOWEROUTLET

BLOWER

OUTLET

BLOWER

OUTLET

OPTIONAL 2 FT[610 MM]SERVICEACCESS

OPTIONAL 2 FT[610 MM]SERVICEACCESS

G

H

006-012 34.1 [86.6] 21.1 [53.6] 18.9 [42.9]

NOTE: BLOWER SERVICE PANEL REQUIRES 2 FT SERVICE ACCESS

POWER SUPPLY3 / 4" [19.1 MM] KNOCKOUT

1 / 2"[12.7 MM]KNOCKOUT

LOW VOLTAGE1 / 2" [12.7 MM]KNOCKOUT

3RIGHT/ STRAIGHT

DISCHARGE

BACKDISCHARGE

NOTE: CHOOSE EITHER

BACK OR STRAIGHT DISCHARGENOTE: CHOOSE EITHER

BACK OR STRAIGHT DISCHARGE

50PCH006-060 UNITS

NOTES:1. While clear access to all removable panels is not required, installer should

take care to comply with all building codes and allow adequate clearancefor future field service.

2. Horizontal units shipped with filter bracket only. This bracket should beremoved for return duct connection.

3. Discharge flange and hanger brackets are factory installed.4. Condensate is 3 / 4-in. (19.1 mm) FPT copper.5. Blower service panel requires 2 ft (610 mm) service access.6. Blower service access is through back panel on left or right discharge units

or through panel opposite air coil on back discharge units.

50PCHUNITSIZE

OVERALL CABINETWATER

CONNECTIONSELECTRICAL KNOCKOUTS

DISCHARGE CONNECTIONSDUCT FLANGE

( 0.10 in., 2.5 mm)

RETURN CONNECTIONUSING RETURN AIR

OPENING

AWidth

BDepth

CHeight

1 2 3 4Size(IPT)

H1 / 2-in.

J1 / 2-in.

K3 / 4-in.

LM

SupplyHeight

NSupplyWidth

O PQ

ReturnDepth

RReturnHeight

S TLoop In Loop Out

D E F GLow

VoltageLow

VoltagePowerSupply

006-012

in. 19.1 34.1 11.1 9.6 1.1 1.5 1.1 1 / 2 8.1 5.1 2.1 0.8 8.9 6.7 8.2 1.3 16.1 9.8 1.1 0.6cm 48.5 86.6 28.2 24.3 2.7 3.8 2.7 1.3 20.6 13.0 5.4 1.9 22.7 17.0 13.3 3.3 41.0 25.0 2.7 1.5

015in. 20.1 43.1 17.0 15.1 1.4 3.2 1.4 1 / 2 12.1 9.1 6.1 2.6 13.3 9.9 4.1 1.3 23.0 15.0 1.1 1.0cm 51.1 109.5 43.2 38.4 3.4 8.1 3.5 1.3 30.8 23.2 15.6 6.6 33.8 25.1 10.5 3.3 58.4 38.1 2.8 2.5

018in. 20.1 43.1 17.0 15.1 1.4 4.1 1.4 1 / 2 12.1 9.1 6.1 2.6 13.3 9.9 4.1 1.3 23.0 15.0 1.1 1.0cm 51.1 109.5 43.2 38.4 3.4 10.4 3.5 1.3 30.8 23.2 15.6 6.6 33.8 25.1 10.5 3.3 58.4 38.1 2.8 2.5

024in. 20.1 43.1 18.3 15.1 1.4 4.4 1.4 3 / 4 12.1 9.1 6.1 2.6 13.3 9.9 4.1 1.3 23.0 16.3 1.1 1.0cm 51.1 109.5 46.5 38.4 3.4 11.3 3.5 1.9 30.8 23.2 15.6 6.6 33.8 25.1 10.5 3.3 58.4 41.4 2.8 2.5

030in. 20.1 43.1 18.3 15.1 1.4 3.1 1.4 3 / 4 12.1 9.1 6.1 2.6 13.3 9.9 4.1 1.3 23.0 16.3 1.1 1.0cm 51.1 109.5 46.5 38.4 3.4 7.8 3.5 1.9 30.8 23.2 15.6 6.6 33.8 25.1 10.5 3.3 58.4 41.4 2.8 2.5

036

in. 20.1 47.1 21.0 15.1 1.4 5.3 1.4 3 / 4 16.1 13.1 10.1 2.5 16.1 11.0 3.0 2.5 25.9 19.0 1.1 1.0

cm 51.1 119.6 53.3 38.4 3.4 13.4 3.5 1.9 41.0 33.3 25.7 6.3 40.9 27.9 7.7 6.4 65.8 48.3 2.8 2.5

042in. 20.1 47.1 21.0 15.1 1.4 4.4 1.4 3 / 4 16.1 13.1 10.1 2.5 16.1 11.0 3.0 2.5 25.9 19.0 1.1 1.0cm 51.1 119.6 53.3 38.4 3.4 11.3 3.5 1.9 41.0 33.3 25.7 6.3 40.9 27.9 7.7 6.4 65.8 48.3 2.8 2.5

048in. 24.1 54.1 21.0 15.1 1.4 4.4 1.4 1 16.1 13.1 10.1 3.7 16.1 13.7 4.1 1.3 35.9 19.0 1.1 1.0cm 61.2 137.4 53.3 38.4 3.4 11.1 3.5 2.5 41.0 33.3 25.7 9.5 41.0 34.8 10.3 3.2 91.2 48.3 2.8 2.5

060in. 24.1 54.1 21.0 15.1 1.4 3.8 1.4 1 16.1 13.1 10.1 1.7 18.1 13.7 4.1 1.3 35.9 19.0 1.1 1.0cm 61.2 137.4 53.3 38.4 3.4 9.7 3.5 2.5 41.0 33.3 25.7 4.4 46.0 34.8 10.3 3.2 91.2 48.3 2.8 2.5

Fig. 1 — 50PCH Unit Dimensions

a50-8695

LEGEND

BSP — Blower Service PanelCAP — Control Access PanelCSP — Compressor Service PanelFPT — Female Pipe Thread


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AccessoryElectric Heat(if applicable)

Filter Access

Return Loop

Supply Loop

Water Out

Water In

Integral hanger support-pre-attached in factory

Field-supplied transition tominimize pressure loss

3/8" threaded rods(by others)

Return Air(Ductworknot shown)

ThermostatWiring

Power Wiring Balancing Valve (Fieldinstalled and calibratedaccessory)

Accessorystainless steelbraid hosewith integral“J” swivel

3/8" ThreadedRod (by others)

Supply Air

Insulated supply duct withat least one 90 degree elbowto reduce air noise(field supplied)

FlexibleConnection

Vibration Isolator(white compressor end

and red blower end)

Washer(by others)

Double Hex Nuts

(by others)

Unit Power

Unit PowerDisconnect

Unit Hanger

Low Pressure Drop WaterControl Valve (optional) or(field-installed accessory)

Ball Valve Accessory with optionalintegral P/T plug (typical for supplyand return piping)

Water Out

Water In

Fig. 2 — Typical Installation — 50PCH Units

UNIT HANGER ISOLATION DETAIL

a50-7842ef


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ACCESS PANELS

TOP VIEW-LEFT RETURN

U

RSISOMETRIC

VIEW

LEFT RETURN LEFT VIEW- AIR COIL OPENING

T

CPOWER SUPPLY3 /4" [19.1 MM] HV

KNOCKOUTLOW VOLTAGE

1/2" [12.7 MM] LVKNOCKOUT

LOW VOLTAGE1/2" [12.7 MM] LV

KNOCKOUT

CONDENSATE3 /4" FPT

FRONT-VIEW

K

1.00 [25.4 MM]

F

JH

D

L

AIR COIL

FIELD INSTALLEDDISCHARGE FLANGE

FRONTBACK

U

R S

T

C

BACKFRONT

RIGHT RETURN RIGHT VIEW- AIR COIL OPENING

BSP

CAP

STANDARD FILTER BRACKET

ASP

AIR COIL

F R O N T

OPTIONAL2 FT [610 MM]SERVICEACCESSLEFT RTN(RIGHT RTNOPPOSITESIDE)

N BP

A

O

M

2 FT [610 MM]SERVICE

3

2

1

E

I

G

TOP VIEW-RIGHT RETURN

F R ONT

P N

O

Q

TOP VIEW-FRONT RETURN

P N

O

Q

CSP

CAP

CSPCSP

CSP

AIR COIL

AIR COIL SIDE

BSP

AIR COIL AND FRONT SIDE

AIR COIL SIDE

50PCV006-060 UNITS

NOTES:1. Shaded areas are recommended service areas. Installer should take care to comply with

all building codes and allow adequate clearance for future field service.2. Front and side access is preferred for service access. However, all components may be

serviced from the front access panel if side access is not available except on 50PCV009-030 with front return.

3. Discharge flange is field installed.4. Condensate is 3/4 in. (19.1 mm) FPT.5. Units shipped with filter rails. These rails should be removed for return duct connection.

See WSHP Accessory Price Page for accessory air filter frame with duct collar.

50PCVUNITSIZE

OVERALL CABINET WATER CONNECTIONS ELECTRICAL KNOCKOUTSDISCHARGE CONNECTIONDUCT FLANGE INSTALLED

(0.10 in., 2.5 mm)

RETURN CONNECTIONUSING RETURN AIR

OPENING

AWidth

BDepth

CHeight

1 2 3Size(IPT)

J1/2-in.

(1.3 cm)

K1/2-in.

(1.3 cm)

L3/4-in.

(1.3 cm) M NO

SupplyWidth

PSupplyDepth

Q RS

ReturnDepth

TReturnHeight

UD E F G

H ILow

VoltageLow

VoltagePowerSupplyLoop In Loop Out

006-012

in. 19.1 19.1 22.0 1.4 1.6 9.5 1.6 6.1 1.6 1 / 2 2.9 5.9 8.9 8.9 5.1 9.0 9.0 5.5 2.1 16.2 9.9 0.7cm 48.5 48.5 55.9 3.6 4.1 24.1 4.3 15.6 4.1 1.3 7.3 14.9 22.5 22.7 12.9 22.9 22.9 14.0 5.3 41.1 25.1 1.9

015in. 21.5 21.5 39.0 1.9 1.4 13.8 1.4 8.1 1.4 1 / 2 4.1 7.1 10.1 6.4 3.8 14.0 14.0 5.3 2.3 18.3 20.9 0.7cm 54.6 54.6 99.1 4.8 3.6 35.1 3.6 20.6 3.6 1.3 10.5 18.1 25.7 16.1 9.5 35.6 35.6 13.6 5.8 46.5 53.1 1.9

018in. 21.5 21.5 39.0 1.9 1.4 12.9 1.4 8.1 1.4 1 / 2 4.1 7.1 10.1 6.4 3.8 14.0 14.0 5.3 2.3 18.3 20.9 0.7cm 54.6 54.6 99.1 4.8 3.6 32.8 3.6 20.6 3.6 1.3 10.5 18.1 25.7 16.1 9.5 35.6 35.6 13.6 5.8 46.5 53.1 1.9

024in. 21.5 21.5 40.0 1.9 1.4 13.8 1.4 8.1 1.4 3 / 4 4.1 7.1 10.1 6.4 3.8 14.0 14.0 5.3 2.3 18.3 20.9 0.7cm 54.6 54.6 101.6 4.8 3.6 35.1 3.6 20.6 3.6 1.9 10.5 18.1 25.7 16.1 9.5 35.6 35.6 13.6 5.8 46.5 53.1 1.9

030in. 21.5 21.5 40.0 1.9 1.4 15.2 1.4 8.1 1.4 3 / 4 4.1 7.1 10.1 6.4 3.8 14.0 14.0 5.3 2.3 18.3 20.9 0.7cm 54.6 54.6 101.6 4.8 3.6 38.6 3.6 20.6 3.6 1.9 10.5 18.1 25.7 16.1 9.5 35.6 35.6 13.6 5.8 46.5 53.1 1.9

036

in. 21.5 26.0 45.0 1.9 1.4 15.7 1.4 8.1 1.4 3 / 4 4.1 7.1 10.1 6.4 3.8 14.0 14.0 5.1 2.3 22.8 23.9 0.7

cm 54.6 66.0 114.3 4.8 3.6 39.9 3.6 20.6 3.6 1.9 10.5 18.1 25.7 16.1 9.5 35.6 35.6 13.1 5.8 57.9 60.7 1.9

042in. 21.5 26.0 45.0 1.9 1.4 16.6 1.4 8.1 1.4 3 / 4 4.1 7.1 10.1 6.4 3.8 14.0 14.0 5.1 2.3 22.8 23.9 0.7cm 54.6 66.0 114.3 4.8 3.6 42.0 3.6 20.6 3.6 1.9 10.5 18.1 25.7 16.1 9.5 35.6 35.6 13.1 5.8 57.9 60.7 1.9

048in. 24.0 32.5 46.0 1.9 1.4 16.6 1.4 8.1 1.4 1 4.1 7.1 10.1 6.9 7.3 16.0 18.0 5.1 2.3 29.3 22.5 0.7cm 61.0 82.6 116.8 4.8 3.6 42.2 3.6 20.6 3.6 2.5 10.5 18.1 25.7 17.4 18.4 40.6 45.7 13.1 5.8 74.4 57.0 1.9

060in. 24.0 32.5 46.0 1.9 1.4 16.7 1.4 8.1 1.4 1 4.1 7.1 10.1 6.9 7.3 16.0 18.0 5.1 2.3 29.3 22.5 0.7cm 61.0 82.6 116.8 4.8 3.6 42.4 3.6 20.6 3.6 2.5 10.5 18.1 25.7 17.4 18.4 40.6 45.7 13.1 5.8 74.4 57.0 1.9

Fig. 3 — 50PCV Unit Dimensions

LEGEND

ASP — Alternate Service PanelBSP — Blower Service PanelCAP — Control Access PanelCSP — Compressor Service PanelFPT — Female Pipe ThreadHV — High VoltageLV — Low Voltage

a50-8696


7/527

Step 3 — Locate Unit — The following guidelinesshould be considered when choosing a location for a WSHP:

• Units are for indoor use only.• Locate in areas where ambient temperatures are between

40 F and 100 F and relative humidity is no greater than75%.

• Provide sufficient space for water, electrical and ductconnections.

• Locate unit in an area that allows easy access andremoval of filter and access panels.

• Allow enough space for service personnel to performmaintenance.

• Return air must be able to freely enter the space if unitneeds to be installed in a confined area such as a closet.

• Install the unit on a piece of rubber, neoprene or other

mounting pad material for sound isolation. The padshould be at least 3/8 in. [10 mm] to1/2 in. [13 mm] in

thickness. Extend the pad beyond all four edges of theunit.

• Provide adequate clearance for filter replacement anddrain pan cleaning. Do not block filter access with pip-ing, conduit or other materials. Refer to Fig. 1 and 3 for dimensional data.

• Provide access for fan and fan motor maintenance andfor servicing the compressor and coils without removingthe unit.

• Provide an unobstructed path to the unit within the closetor mechanical room. Space should be sufficient to allowremoval of the unit, if necessary.

• In limited side access installations, pre-removal of thecontrol box side mounting screws will allow control boxremoval for future servicing.

• Provide access to water valves and fittings and screw-driver access to the unit side panels, discharge collar andall electrical connections.

NOTE: Correct placement of the horizontal unit can play animportant part in minimizing sound problems. Since duct-work is normally applied to these units, the unit can be placed so that the principal sound emission is outside the oc-cupied space in sound-critical applications. A fire damper may be required by the local code if a fire wall is penetrated.

FIELD CONVERSION OF DISCHARGE AIR — The dis-charge air of the 50PCH horizontal units can be converted

between side and back discharge in the field. The conversion process is the same for right and left return configurations. SeeFig. 5 and 6.

NOTE: It is not possible to convert return air between left orright return models in the field due to refrigerant pipingchanges.

Preparation — The unit should be on the ground in a well litarea for conversion. Hung units should be taken down toground level before converting.

ReturnAir

Power

ThermostatWiring

CompressorAccess Panel

Balancing Valve (field installed and calibrated accessory)

Field-suppliedstainless steel

braid hosewith integral“ J” swivel

Low Pressure Drop Water

Control Valve (optional) (field-installed accessory)

Ball Valve with optional integral P/T plug (typical for supply and return piping)

WaterOut

WaterIn

BuildingLoop

Supply Air

FlexibleConnection

NOTE: Ball valve with integral pressure temperature plug recommended.

Fig. 4 — Typical Vertical Installation of 50PCV Unit

a50-6803ef

Return Air

Remove Screws

Return Air

Rotate

Move to Side

Side Discharge

Return Air

Discharge Air

Drain

Back Discharge

Replace Screws

Water

Connection End

WaterConnection End

WaterConnection End

Fig. 5 — Conversion Left Return,Side Discharge to Back Discharge

WaterConnection End

SupplyDuct

Return Air

WaterConnection End

Drain

Return Air

Discharge Air

Side Discharge

Back Discharge

Fig. 6 — Conversion Right Return,Side Discharge to Back Discharge

a50-6257ef


8/528

Side to Back Discharge Conversion

1. Remove screws to free the top and discharge panels. SeeFig. 5.

2. Remove the access panel and set aside.

3. Lift the discharge panel from side of unit and rotate it to back using care not to damage blower wiring.

4. Check blower wire routing and connections for unduetension or contact with sheet metal edges. Re-route if necessary.

5. Check refrigerant tubing for contact with other compo-

nents. Adjust if necessary.6. Reinstall top panel using screws set aside in Step 1.

NOTE: Location for some screws at bottom of discharge panelmay have to be changed.

7. Manually spin fan wheel to check for obstructions.Adjust for any obstruction found.

8. Replace access panel.

Back to Side Discharge Conversion — Follow instructionsabove for Side to Back Discharge Conversion, noting the panels would be reversed.

Step 4 — Mount the Unit

HORIZONTAL UNITS (50PCH) — Horizontal units should bemounted using the factory-installed hangers. Proper attachmentof hanging rods to building structure is critical for safety. SeeFig. 2 and 7. Rod attachments must be able to support theweight of the unit. See Table 1 for unit operating weights.

VERTICAL UNITS (50PCV) — Vertical units are available inleft or right return air configurations. See Fig. 3. Mount the uniton a vibration absorption pad slightly larger than the entire baseto minimize vibration transmission. It is not necessary to mountthe unit on the floor. See Fig. 8.

NOTE: Some codes require the use of a secondary drain panunder vertical units. Check local codes for more information.

Step 5 — Check Duct System — Size the duct sys-tem to handle the design airflow quietly.

NOTE: Depending on the unit, the fan wheel may have a shipping support installed at the factory. This must be removed before operating unit.

SOUND ATTENUATION — To eliminate the transfer of vibration to the duct system, a flexible connector is recom-mended for both discharge and return air duct connections on

metal duct systems. The supply and return plenums should in-clude internal duct liner of fiberglass or be made of duct boardconstruction to maximize sound attenuation of the blower.Installing the WSHP unit to uninsulated ductwork in an uncon-ditioned space is not recommended since it will sweat andadversely affect the unit’s performance.

To reduce air noise, at least one 90-degree elbow could beincluded in the supply and return air ducts, provided system performance is not adversely impacted. The blower speed canalso be changed in the field to reduce air noise or excessive air-flow, provided system performance is not adversely impacted.

EXISTING DUCT SYSTEM — If the unit is connected toexisting ductwork, consider the following:

• Verify that the existing ducts have the proper capacity to

handle the unit airflow. If the ductwork is too small,install larger ductwork.

• Check existing ductwork for leaks and repair asnecessary.

NOTE: Local codes may require ventilation air to enter thespace for proper indoor air quality. Hard-duct ventilation may be required for the ventilating air supply. If hard ducted venti-lation is not required, be sure that a proper air path is providedfor ventilation air to unit to meet ventilation requirement of thespace.

Step 6 — Install Condensate Drain

HORIZONTAL UNITS (50PCH) — Slope the unit towardthe drain at a 1/4 in. drop at drain end. See Fig. 9. If it is not pos-sible to meet the required pitch, install a condensate pump at

the unit to pump condensate to building drain.

Horizontal units are not internally trapped, therefore an ex-ternal trap is necessary. Install each unit with its own individualtrap and means to flush or blow out the condensate drain line.Do not install units with a common trap or vent. For typicalcondensate connections see Fig. 10.

NOTE: Never use a pipe size smaller than the connection.

VERTICAL UNITS (50PCV) — Each unit uses a condensatehose inside all cabinets as a trapping loop, therefore an externaltrap is not necessary and should not be used. See Fig. 11.

Fig. 7 — Horizontal Hanger Bracket(Factory Installed)

COMPRESSORSECTION

AIR HANDLERSECTION

a50-8489

VibrationAbsorptionPad

Fig. 8 — 50PCV Unit Mounted withVibration Absorption Pad

a50-6259ef

Fig. 9 — Horizontal Unit Pitch

1/4” Pitch forDrainage

Drain Connection

Pitch TowardDrain

a50-6260ef


9/529

Each unit must be installed with its own individual vent andmeans to flush or blow out the condensate drain line. Do not in-stall units with a common trap or vent.

VENTING — Install a vent in the condensate line of anyapplication that may allow dirt or air to collect in the line. Con-sider the following:• Always install a vent where an application requires a

long horizontal run.• Always install a vent where large units are working

against higher external static pressure and to allow proper drainage for multiple units connected to the samecondensate main.

• Be sure to support the line where anticipated sagging fromthe condensate or when “double trapping” may occur.

• If condensate pump is present on unit, be sure drain con-nections have a check valve to prevent back flow of con-densate into other units.

Step 7 — Pipe Connections — Depending on the

application, there are 3 types of WSHP piping systems tochoose from: water loop, ground-water and ground loop. Refer to Piping Section of Carrier System Design Manual for addi-tional information.

All WSHP units use low temperature soldered female pipethread fittings for water connections to prevent annealing andout-of-round leak problems which are typically associated withhigh temperature brazed connections. Refer to Table 1 for con-nection sizes. When making piping connections, consider thefollowing:• Use a backup wrench when making screw connections to

unit to prevent internal damage to piping.

• Insulation may be required on piping to avoid condensation in the case where fluid in loop piping operates attemperatures below dew point of adjacent air.

• Piping systems that contain steel pipes or fittings may be subject to galvanic corrosion. Dielectric fittings may be used to isolate the steel parts of the system to avoidgalvanic corrosion.

WATER LOOP APPLICATIONS — Water loop applicationsusually include a number of units plumbed to a common piping system. Maintenance to any of these units can introduce aiinto the piping system. Therefore, air elimination equipmen

comprises a major portion of the mechanical room plumbing.The flow rate is usually set between 2.25 and 3 gpm per ton

of 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, consider the following for system piping:• Piping systems using water temperatures below 50 F

require 1/2-in. closed cell insulation on all piping surfacesto eliminate condensation.

• Avoid all plastic to metal threaded fittings due 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.• Flush the piping system prior to operation to remove dir

and foreign materials from the system.

GROUND-LOOP APPLICATIONS — Temperatures between 25 and 110 F and a cooling capacity of 2.25 to 3 gpm offlow per ton is recommended. In addition to complying withany applicable codes, consider the following for system piping

• Limit piping materials to only polyethylene fusion in the buried sections of the loop.

• Do not use galvanized or steel fittings at any time due tocorrosion.

• Avoid all plastic to metal threaded fittings due to the potential to leak. Use a flange fitted substitute.

• Do not overtighten connections.

• Route piping to avoid service access areas to unit.• Use pressure-temperature (P/T) plugs to measure flow o pressure drop.

INSTALLATION OF SUPPLY AND RETURN HOSEKIT — Follow these piping guidelines.

1. Install a drain valve at the base of each supply and returnriser to facilitate system flushing.

2. Install shutoff/balancing valves and unions at each unit to permit unit removal for servicing.

3. Place strainers at the inlet of each system circulating pump.

4. Select the proper hose length to allow slack between connection points. Hoses may vary in length by +2% to –4%under pressure.

5. Refer to Table 2. Do not exceed the minimum bend radiufor the hose selected. Exceeding the minimum bend radius may cause the hose to collapse, which reduces waterflow rate. Install an angle adapter to avoid sharp bendsin the hose when the radius falls below the requiredminimum.

NOTE: Piping must comply with all applicable codes.

Table 2 — Metal Hose Minimum Bend Radii

NOTE: Trap should be deep enough to offset maximum unit staticdifference. A 4-in. trap is recommended.

Fig. 10 — Trap Condensate Drain

a50-6261tf

AlternateCondensateLocation

Vent

1/4” per footslope to drain

3/4” Copper FPT/PVC

WaterConnections

1/2”

1/2”

3/4” PVC

NOTE: Unit does not need to be sloped toward drain.

Fig. 11 — Vertical Condensate Connection

a50-6262ef

HOSE DIAMETER (in.) MINIMUM BEND RADII (in.)1 / 2 21 / 23 / 4 4

1 51 / 2


10/5210

Insulation is not required on loop water piping except wherethe piping runs through unheated areas or outside the buildingor when the loop water temperature is below the minimum ex- pected dew point of the pipe ambient. Insulation is required if loop water temperature drops below the dew point.

Pipe joint compound is not necessary when Teflon* thread-ed tape is pre-applied to hose assemblies or when flared-endconnections are used. If pipe joint compound is preferred, usecompound only in small amounts on the male pipe threads of the fitting adapters. Prevent sealant from reaching the flaredsurfaces of the joint.

NOTE: When anti-freeze is used in the loop, assure that it iscompatible with Teflon tape or pipe joint compound employed.

Maximum allowable torque for brass fittings is 30 ft-lb. If atorque wrench is not available, tighten finger-tight plus onequarter turn. Tighten steel fittings as necessary.

Optional pressure-rated hose assemblies designed specifi-cally for use with Carrier units are available. Similar hoses can be obtained from alternate suppliers. Supply and return hosesare fitted with swivel-joint fittings at one end to prevent kink-ing during installation.

Refer to Fig. 12 for an illustration of a supply/return hosekit. Male adapters secure hose assemblies to the unit and risers.Install hose assemblies properly and check them regularly toavoid system failure and reduced service life.

Step 8 — Wire Field Power Supply

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 mustconform to the Class II temperature limitations described in the NEC.

Refer to unit wiring diagrams Fig. 13-20 for a schematic of the field connections, which must be made by the installing (or electrical) contractor. Refer to Table 3 for fuse sizes.

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.

Operating voltage must be the same voltage and phase asshown in Table 3.

Make all final electrical connections with a length of flexi-

ble conduit to minimize vibration and sound transmission tothe building.

POWER CONNECTION — Make line voltage connection by connecting the incoming line voltage wires to the L sideof the CC terminal as shown in Fig. 21. See Table 3 for cor-rect wire and maximum overcurrent protection sizing.

SUPPLY VOLTAGE — Operating voltage to unit must bewithin voltage range indicated on unit nameplate.

On 3-phase units, voltages under load between phases must be balanced within 2%. Use the following formula to deter-mine the percentage voltage imbalance:

% Voltage Imbalance

Example: Supply voltage is 460-3-60.

AB = 452 voltsBC = 464 voltsAC = 455 volts

Determine maximum deviation from average voltage:

(AB) 457 – 452 = 5 v

(BC) 464 – 457 = 7 v(AC) 457 – 455 = 2 v

Maximum deviation is 7 v.

Determine percent voltage imbalance.

This amount of phase imbalance is satisfactory as it is below the maximum allowable 2%.

Operation on improper line voltage or excessive phaseimbalance constitutes abuse and may cause damage to electri-cal components.

NOTE: If more than 2% voltage imbalance is present, contactyour local electric utility.

208-VOLT OPERATION — All 208-230 volt units are factorywired for 208 volts. The transformers may be switched to230-volt operation by switching the red (208 volt) wire withthe orange (230 volt) wire at the L1 terminal.

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.

IMPORTANT: Do not bend or kink supply lines or hoses.

CAUTION

Backup wrench is required when tightening water connec-tions to prevent water line damage. Failure to use a backupwrench could result in equipment damage.

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.

CAUTION

Use only copper conductors for field-installed electricalwiring. Unit terminals are not designed to accept other types of conductors. Failure to follow this safety precautioncould lead to equipment damage.

Rib Crimped

Length(2 ft Length Standard)

SwivelBrassFitting

BrassFitting

MPT

Fig. 12 — Supply/Return Hose Kit

A50-7734

= 100 xmax voltage deviation from average voltage

average voltage

Average Voltage =452 + 464 + 455

3

=1371

3

= 457

% Voltage Imbalance = 100 x7

457

= 1.53%

*Registered trademark of E. I. du Pont de Nemours and Company.


11/5211

N O T E S :

1 . C o m p r e s s o r a n d b l o w e r m o t o r t h e r m a l l y

p r o t e c t e d i n t e r n a l l y .

2 . A l l w i r i n g t o t h e u n i t m u s t c o m p l y w i t h N E C a n d l o c a l c o d e s .

3 . T r a n s f o r m e r f o r 2 0 8 / 2 3 0 v w i l l b e c o n n

e c t e d f o r 2 0 8 v o p e r a t i o n . F o r

2 3 0 v o p e r a t i o n , s w i t c h R E D w i r e t o O

R G w i r e . I n s u l a t e o p e n e n d o f

R E D l e a d . T r a n s f o r m e r i s e n e r g y l i m i t i n g

o r m a y h a v e c i r c u i t b r e a k e r .

4 . F P 1 t h e r m i s t o r p r o v i d e s f r e e z e p r o t e c t i o n f o r w a t e r . W h e n u s i n g a n t i -

f r e e z e s o l u t i o n s , c u t J W 3 j u m p e r .

5 . T y p i c a l h e a t p u m p t h e r m o s t a t w i r i n g s h o w n . R e f e r t o t h e r m o s t a t i n s t a l l a -

t i o n i n s t r u c t i o n s f o r w i r i n g t o t h e u n i t . W

i r e “ Y ” f r o m

t h e r m o s t a t t o “ Y ”

C o m p l e t e C w h e n a m o t o r i z e d v a l v e i s n o t u s e d . “ O ” t e r m i n a l i s n o t u s e d

i n c o o l i n g o n l y a p p l i c a t i o n s . T h e r m o s t a t w i r i n g m u s t b e C l a s s 1 a n d v o l t -

a g e r a t i n g e q u a l t o o r g r e a t e r t h a n u n i t s u p p l y v o l t a g e .

6 . 2 4 - v

a l a r m s i g n a l s h o w n . F o r d r y a l a r m c o n t a c t , c u t J W 1 j u m p e r a n d f o r

a n t i -


7 . T r a n

s f o r m e r s e c o n d a r y g r o u n d v i a g r e e n w i r e w i t h y e l l o w s t r i p e f r o m “ C ”

t e r m

i n a l t o c o n t r o l b o x .

8 . H o t w a t e r g e n e r a t o r p u m p o n l y i n m o d e l s w i t h h o t w a t e r g e n e r a t i o n a n d

i n t e r

n a l p u m p o p t i o n .

9 . F o r a u x i l i a r y s t a g i n g o p t i o n s , c o n s u l t e l e c t r i c h e a t i n s t a l l a t i o n m a n u a l .

1 0 . F a n

m o t o r s f a c t o r y w i r e d f o r m e d i u m

s p e e d . F o r h i g h o r l o w s p e e d ,

r e m o v e B L U w i r e f r o m f a n m o t o r s p e e d t r a p “ M ” a n d

c o n n e c t t o “ H ” f o r

h i g h

s p e e d o r “ L ” f o r l o w s p e e d .

1 1 . A q u a s t a t i s w i t h u n i t a n d m u s t b e w i r e d i n s e r i e s w i t h

t h e h o t l e g t o t h e

p u m

p . A q u a s t a t i s r a t e d f o r v o l t a g e u p t o 2 7 7 v .

a 5 0 - 8 4 9 0

F i g 1 3 — 5 0 P C H P C V U n i t s w i t h C o m p l e t e C C o n t r o l l e r S i n g l e - P h a s e

C o m p l e t e C

* O p t i o n a l .

A L

—

A l a r m R e l a y C o n t a c t s

B M

—

B l o w e r M o t o r

B M C

—

B l o w e r M o t o r C a p a c i t o r

B R

—

B l o w e r R e l a y

C A P

—

C o m p r e s s o r C a p a c i t o r

C B

—

C i r c u i t B r e a k e r

C C

—

C o m p r e s s o r C o n t a c t o r

C O

—

S e n s o r , C o n d e n s a t e O v e r f l o w

F P 1

—

S e n s o r , L o w T e m p e r a t u r e P r o t e c t i o n W a t e r C o i l

F P 2

—

S e n s o r , L o w T e m p e r a t u r e P r o t e c t i o n A i r C o i l

H P

—

H i g h - P r e s s u r e S w i t c h

H P W S

—

H i g h - P r e s s u r e W a t e r S w i t c h

H W T S

—

H i g h L e a v i n g W a t e r T e m p e r a t u r e S w i t c h

J W 1

—

J u m p e r , A l a r m

L E G E N D

L O C

—

L o s s o f C h a

r g e P r e s s u r e S w i t c h

M V

—

M o t o r i z e d V

a l v e

M V E S

—

M o t o r i z e d V

a l v e E n d S w i t c h

N E C

—

N a t i o n a l E l e

c t r i c a l C o d e

P 1

—

F i e l d W i r i n g

T e r m i n a l B l o c k

P S C

—

P e r m a n e n t S p l i t C a p a c i t o r

R V

—

R e v e r s i n g V

a l v e C o i l

T R A N S

—

T r a n s f o r m e r

T X V

—

T h e r m o s t a t i c E x p a n s i o n V a l v e

F i e l d L i n e V o l t a g e W i r i n g

F i e l d L o w V o l t a g e W i r i n g

P r i n t e d C i r c

u i t T r a c e

O p t i o n a l W i r i n g

R e l a y / C o n t a c t o r C o i l

C o n d e n s a t e P a n

S o l e n o i d

C o i l

T e m p e r a

t u r e S w i t c h

T h e r m i s t o r

G r o u n d

W i r e N u t


12/5212

N O T E S :

1 . C o m p r e s s o r t h e r m a l l y p r o t e c t e d i n t e r n a l l y .

2 . A l l w i r i n g t o t h e u n i t m u s t c o m p l y w i t h N

E C a n d l o c a l c o d e s .

3 . T r a n s f o r m e r i s w i r e d t o 2 0 8 - v R E D l e a d

f o r 2 0 8 - 3 - 6 0 u n i t s . F o r 2 3 0 - 3 - 6 0 ,

s w i t c h R E D a n d O R G l e a d s a t L 1 a n d i n

s u l a t e R E D l e a d . T r a n s f o r m e r i s

e n e r g y l i m i t i n g o r m a y h a v e c i r c u i t b r e a k e r .

4 . F P 1 t h e r m i s t o r p r o v i d e s f r e e z e p r o t e c t i o n f o r w a t e r . W h e n u s i n g a n t i -


5 . R e f e r t o m i c r o p r o c e s s o r c o n t r o l , L O N , o r t h e r m o s t a t i n s t a l l a t i o n i n s t r u c -

t i o n s f o r w i r i n g t o t h e u n i t . W i r e “ Y ” f r o

m

t h e r m o s t a t t o “ Y 1 ” D e l u x e D

w h e n m o t o r i z e d v a l v e i s n o t u s e d . T h e r m o s t a t w i r i n

g m u s t b e C l a s s 1

a n d

v o l t a g e r a t i n g e q u a l t o o r g r e a t e r t h a n u n i t s u p p l y

v o l t a g e . H e a t / c o o l

t h e r m o s t a t s n o t c o m p a t i b l e w i t h m o t o r i z e d w a t e r v a l v

e .

6 . 2 4 - v a l a r m s i g n a l s h o w n . F o r d r y a l a r m c o n t a c t , c u t J W 4 j u m p e r a n d d r y

c o n

t a c t w i l l b e a v a i l a b l e b e t w e e n A L 1 a n d A L 2 .

7 . T r a n s f o r m e r s e c o n d a r y g r o u n d v i a g r e e n w i r e w i t h y e

l l o w s t r i p e f r o m “ C ”

t e r m

i n a l t o c o n t r o l b o x .

8 . B l o w e r m o t o r i s f a c t o r y w i r e d f o r m e d i u m a n d h i g h s p e e d s . F o r a n y o t h e r

c o m

b i n a t i o n o f s p e e d s , a t t a c h b l a c k w i r e t o t h e h i g h e r o f t h e t w o d e s i r e d

s p e

e d t a p s a n d t h e b l u e w i r e t o t h e l o w e r o f t h e t w o d

e s i r e d s p e e d t a p s .

a 5 0 - 8 4 9 1

F i g . 1 4 — 5

0 P C H , P C V U n i t s w i t h D e l u x e D C o n t r o l l e r , T h r e

e - P h a s e ( 2 0 8 / 2 3 0 V )

D e l u x e D

L E G E N D

R e l a y / C o n t a

c t o r C o i l

C o n d e n s a t e

P a n

S o l e n o i d C o

i l

T h e r m i s t o r

G r o u n d

W i r e N u t

* O p t i o n a l .

A L

—


B M

—


B M C

—


C B

—


C C

—


C O

—


F P 1

—


F P 2

—


H P

—


H P W S

—


H W T S

—

H i g h L e a v i n g W a t e r T e m p e r a t u r e S w i t c h

J W 1

—

J u m p e r , A l a r m

L O C

—

L o s s o f C h a r g

e P r e s s u r e S w i t c h

M V

—

M o t o r i z e d V a l v e

M V E S

—

M o t o r i z e d V a l v e E n d S w i t c h

N E C

—

N a t i o n a l E l e c t r i c a l C o d e

P 1

—

F i e l d W i r i n g T

e r m i n a l B l o c k

R V S

—

R e v e r s i n g V a l v e S o l e n o i d

T R A N S

—


T X V

—

T h e r m o s t a t i c

E x p a n s i o n V a l v e

F i e l d L i n e V o l t a g e W i r i n g


P r i n t e d C i r c u i t T r a c e

O p t i o n a l W i r i n

g


13/5213

N O T E S :

1 . C o m p r e s s o r t h e r m a l l y p r o t e c t e d i n t e r n a l l y .

2 . A l l w i r i n g t o t h e u n i t m u s t c o m p l y w i t h N E C a n d l o c a l c o d e s .

3 . T r a n s f o r m e r i s w i r e d t o 4 6 0 - v B L K / R E D

l e a d f o r 4 6 0 - 3 - 6 0 u n i t s o r 5 7 5 - v

G R Y l e a d f o r 5 7 5 - 3 - 6 0 u n i t s . T r a n s f o r m

e r i s e n e r g y l i m i t i n g o r m a y h a v e

c i r c u i t b r e a k e r .

4 . F P 1 t h e r m i s t o r p r o v i d e s l o w

t e m p e r a

t u r e p r o t e c t i o n f o r w a t e r . W h e n

u s i n g a n t i f r e e z e s o l u t i o n s , c u t J W 3 j u m

p e r .

5 . R e f e r t o m i c r o p r o c e s s o r c o n t r o l , L O N ,

o r t h e r m o s t a t i n s t a l l a t i o n i n s t r u c -

t i o n s f o r w i r i n g t o t h e u n i t . W i r e “ Y ” f r o m

t h e r m o s t a t t o “ Y 1 ” D e l u x e D

w h e n m o t o r i z e d v a l v e i s n o t u s e d . T h

e r m o s t a t w i r i n g m u s t b e C l a s s 1

a n d v o l t a g e r a t i n g e q u a l t o o r g r e a t e r t h a n u n i t s u p p l y v o l t a g e . H e a t / c o o l

t h e r m o s t a t s n o t c o m p a t i b l e w i t h m o t o r i z e d w a t e r v a l v e .

6 . 2 4 - v a l a r m s i g n a l s h o w n . F o r d r y a l a r m c o n t a c t , c u t J W 4 j u m p e r a n d d r y

c o n t a c t w i l l b e a v a i l a b l e b e t w e e n A L 1 a n d A L 2 .

7 . T r a

n s f o r m e r s e c o n d a r y g r o u n d v i a g r e e n w i r e w i t h y e l l o w s t r i p e f r o m “ C ”

t e r

m i n a l t o c o n t r o l b o x .

8 . B l o

w e r m o t o r i s f a c t o r y w i r e d f o r m e d i u m

a n d h i g

h s p e e d s . F o r a n y

o t h

e r c o m b i n a t i o n o f s p e e d s , a t t a c h b l a c k w i r e t o t h

e h i g h e r o f t h e t w o

d e s i r e d s p e e d t a p s a t t h e m o t o r . A t t a c h t h e b l u e w i r e t o t h e l o w e r o f t h e

t w o d e s i r e d s p e e d t a p s .

9 . B l o

w e r m o t o r i s f a c t o r y w i r e d f o r h i g h a n d l o w s p e e d s . N o o t h e r c o m b i -

n a t i o n o f s p e e d s i s a v a i l a b l e .

1 0 . T h

e 4 6 0 - v u n i t s u s i n g a n i n t e r n a l s e c o n d a r y p u m p w

i l l r e q u i r e a n e u t r a l

w i r e f r o m t h e s u p p l y s i d e i n o r d e r t o f e e d t h e a c c e s s

o r y w i t h 2 6 5 - v .

a 5 0 - 8 4 9 2

F i g . 1 5 — 5

0 P C H , P C V U n i t s

w i t h D e l u x e D C o n t r o l l e r , T h r e e - P h a s e ( 4 6 0 V )

D e l u x e D

L E G E N D

R e l a y / C o n

t a c t o r C o i l

C o n d e n s a

t e P a n

S o l e n o i d C o i l

T h e r m i s t o

r

G r o u n d

W i r e N u t

* O p t i o n a l .

A L

—


B M

—


B M C

—


B R

—

B l o w e r R e l a y

C B

—


C C

—


C O

—


F P 1

—


F P 2

—


H P

—


H P W S

—


J W 1

—

C l i p p a b l e F i e l d S e l e c t i o n J u m p e r

L O C

—

L o s s o f C h a

r g e P r e s s u r e S w i t c h

M V

—

M o t o r i z e d V

a l v e

M V E S

—

M o t o r i z e d V

a l v e E n d S w i t c h

N E C

—

N a t i o n a l E l e

c t r i c a l C o d e

P 1

—

F i e l d W i r i n g

T e r m i n a l B l o c k

P B

—

P o w e r B l o c k

R V S

—

R e v e r s i n g V

a l v e S o l e n o i d

T R A N S

—


T X V

—

T h e r m o s t a t i c E x p a n s i o n V a l v e

F i e l d L i n e V

o l t a g e W i r i n g


P r i n t e d C i r c

u i t T r a c e

O p t i o n a l W i r i n g


14/52


15/5215

D e l u x e D

N O T E S :

1 . C o m p r e s s o r a n d b l o w e r m o t o r

t h e r m a l l y p r o t e c t e d i n t e r n a l l y .

2 . A l l w i r i n g t o t h e u n i t m u s t c o m p l y w

i t h N E C a n d l o c a l c o d e s .

3 . T r a n s f o r m e r i s w i r e d t o 4 6 0 - v B L K / R E D l e a d f o r 4 6 0 - 3 - 6 0 u n i t s . T r a n s -

f o r m e r i s e n e r g y l i m i t i n g o r m a y h a v e c i r c u i t b r e a k e r .

4 . F P 1 t h e r m i s t o r p r o v i d e s l o w t e m p

e r a t u r e p r o t e c t i o n f o r w a t e r . W h e n

u s i n g a n t i f r e e z e s o l u t i o n s , c u t J W 3

j u m p e r .

5 . R e f e r t o m i c r o p r o c e s s o r c o n t r o l , L

O N , t h e r m o s t a t i n s t a l l a t i o n i n s t r u c -

t i o n s f o r w i r i n g t o t h e u n i t . W i r e “ N 0

1 ” f r o m L O N t o “ Y 1 ” D e l u x e D w h e n

m o t o r i z e d v a l v e i s n o t u s e d . T h e r m o s t a t w i r i n g m u s t b e C l a s s 1 a n d

v o l t a g e r a t i n g e q u a l t o o r g r e a t e r t h

a n u n i t s u p p l y v o l t a g e .

6 . F a c t o r y c u t J W 4 j u m p e r . D r y c o n t a

c t w i l l b e a v a i l a b l e b e t w e e n A L 1 a n d

A L 2 .

7 . T r a n s f o r m e r s e c o n d a r y g r o u n d v i a

g r e e n w i r e w i t h y e l l o w s t r i p e f r o m

“ C ” t e r m i n a l t o c o n t r o l b o x .

8 . B l o w e r m o t o r i s f a c t o r y w i r e d f o r

m e d i u m

a n d h i g h s p e e d s . F o r a n y

o t h e r c o m b i n a t i o n o f s p e e d s , a t t a c

h b l a c k w i r e t o t h e h i g h e r o f t h e t w o

d e s i r e d

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