Unit installation

ManualsBrandsAmerican Standard ManualsHeat PumpBAYLIFT002A

IMPORTANT — This Document is customer property and is to remain with this unit. Please return to service information pack upon completion of work.

All phases of this installation must comply with the NATIONAL,

STATE & LOCAL CODES. In the absence of local codes, the

installation must conform with National Electric Code -- ANSI/

NFPA 70 or "LATEST REVISION."

Single Package Heat Pump

16 SEER Two Stage

Convertible 3 & 5 Ton

Model:

WCZ036F1/300B

WCZ060F1/300B

INSTALLATION

OPERATION

MAINTENANCE

BAYLIFT002A

LIFTING LUG KIT

As an ENERGY STAR Partner, American Standard has

determined that this product meets the ENERGY STAR

guidelines for energy efficiency.

HAZARDOUS VOLTAGE - DISCONNECT POWER BEFORE SERVICING

WARNING:

18-BB33D5-4

Library

Product Section

Product

Model

Literature Type

Sequence

Date

File No.

Supercedes

Service Literature

Unitary

Packaged Self Contained Heat Pump

WCZ

Installation, Operation, Maintenance

March 2002

SV-UN-PKGP-WCZ-IOM-1B 3/02

WCZ-IOM-1B

WCZ-IOM-1C

Indicates a potentially haz-

result in death or serious injury.

WARNING:

CAUTION:

result in minor or moderate injury. It may also

be used to alert against unsafe practices

and where property-damage-only accidents

could occur.

▲

Warnings and Cautions appear at appro-

priate locations throughout this manual.

Read these carefully.

NOTICE

ardous situation which, if not avoided, could

Indicates a potentially haz-

ardous situation which, if not avoided, may

03/02

Summary of content (22 pages)

PAGE 1
INSTALLATION OPERATION MAINTENANCE All phases of this installation must comply with the NATIONAL, STATE & LOCAL CODES. In the absence of local codes, the installation must conform with National Electric Code -- ANSI/ NFPA 70 or "LATEST REVISION." Model: WCZ036F1/300B WCZ060F1/300B BAYLIFT002A LIFTING LUG KIT WCZ-IOM-1C 18-BB33D5-4 Library Product Section Product Model Literature Type Sequence Date File No.
PAGE 2
GENERAL INFORMATION IMPORTANT: Read this entire manual before beginning installation procedures. SAFETY NOTICE. THIS INFORMATION IS INTENDED FOR USE BY INDIVIDUALS POSSESSING ADEQUATE BACKGROUNDS OF ELECTRICAL AND MECHANICAL EXPERIENCE. ANY ATTEMPT TO REPAIR A CENTRAL AIR CONDITIONING PRODUCT MAY RESULT IN PERSONAL INJURY AND/OR PROPERTY DAMAGE. THE MANUFACTURER OR SELLER CANNOT BE RESPONSIBLE FOR THE INTERPRETATION OF THIS INFORMATION, NOR CAN IT ASSUME LIABILITY IN CONNECTION WITH ITS USE.
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➁ TYPICAL ROOFTOP INSTALLATION WITH BAYCURB030A,038A (WCZ036,060F Models) SEE NOTE 1 SEE NOTE 2 FIELD SUPPLIED SUPPORTS AT EACH END OF CURB ROOFING ROOF INSULATION FIELD SUPPLIED CANT STRIP ROOF DECK FIELD SUPPLIED RIGID INSULATION ROOF MOUNTING CURB NOTE1: The WCZ036F Model extend out past this end of the curb only. SUPPLY AIR DUCT NOTE 2: Only the WCZ060F Model extends past both the end and the side of the curb illustrated.
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DIMENSIONAL DATA ➃ WCZ036,060F OUTLINE - BACK NET MODEL CORNER WEIGHT (LBS) WEIGHT (LBS) W1 W2 W3 W4 WCZ036F 149 95 93 145 482 WCZ060F 187 120 117 183 607 Page 4 A B 64 36 29-3/16 18-9/16 11-1/16 6-9/16 11-1/8 65-1/8 45 C D E F G H J K L M N P 17 18-1/2 25 17-1/2 10 3 8-3/4 33-3/8 21-1/16 15-1/16 4-15/16 9-1/8 21-15/16 22-1/4 25 20 14 3-1/2 8-5/16
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DIMENSIONAL DATA ➄ WCZ036,060F OUTLINE - FRONT RECOMMENDED SERVICE CLEARANCE BACK * 6.0" LEFT SIDE 30.0" RIGHT SIDE 24.0" FRONT SIDE 42.0" CLEARANCE TO COMBUSTIBLE MATERIAL BOTTOM 0.0" BACK 1.0" LEFT SIDE 6.0" RIGHT SIDE 6.0" FRONT SIDE 12.0" TOP 36.
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REQUIRED CLEARANCE FOR UNIT INSTALLATION AND ROOF PENETRATION HOLE SIZE REQUIRED ➅ D A SERVICE CLEARANCE LINES SERVICE CLEARANCE LINES SUPPLY AIR C B RETURN AIR SIDE RAIL WOOD NAILER HOLE IN ROOF SERVICE CLEARANCE & PENETRATION DIMENSIONS MODEL NO. A E F WCZ036F 30" 30" *12" 30" B C D 44" 25" WCZ060F 42" 30" *12" 36" 50" 25" E F * 18" WITH FRESH AIR ACCESSORY * 30" WITH ECONOMIZER LOCATIONS AND RECOMMENDATIONS These units are designed for outdoor installation.
PAGE 7
3. For “Roof Top Application,” unit must be elevated above roof with a mounting Curb or Frame. 11. Access and service clearances for the unit must be given careful consideration when locating the duct entrance openings. Figures 6 and 8 provide unit dimensions. 4. Exhaust vents or other sources of contaminated air should not be near unit air inlet if outside air is to be introduced as a make-up air or the economizer ventilation feature is to be used. 12.
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➆ SPREADER BARS OUTDOOR COIL END OF UNIT BASE OF UNIT REST ON TOP OF CURB RAILS “B” DRIP LIP ON PERIMETER OF UNIT UNIT CORNER DRIP LIP DIMPLE BAYLIFT002A LIFTING LUGS CURB CORNER GASKET SEAL SEE DETAIL “A” NOTE: The inner perimeter of the Drip Lip on all units should be flush with the outer perimeter of the curb on the two sides shown here. See figure 2 for the location of the unit overhange on the WCZ036,060F Models with the BAYCURB030A,038A CURBS.
PAGE 9
INSTALLATION ROOFTOP -- UNITS For roof top applications using a field fabricated frame and ducts, use the following procedure: 4. Place the unit on the frame or roof curb. Refer to Figures 9 or 10. 1. The frame must be located and secured by bolting or welding to the roof. Flashing is required. 5. Secure the unit to the frame or roof curb. 2. The hole in the roof must be prepared in advance of installing the unit. 7.
PAGE 10
INSTALLATION GROUND LEVEL -- HORIZONTAL UNITS For ground level installations, the unit should be positioned on a pad the size of the unit or larger. The unit must be level on the pad. The pad must not come in contact with the structure (See Figure 11.) Be sure the outdoor portion of the supply and return air ducts are as short as possible. 2. Attach the supply and return air ducts to the unit. Proceed with the installation as follows: 4.
PAGE 11
DUCT ATTACHMENT METHODS 12 AIR PROOF THIS SEAM AIR PROOF THIS SEAM UNIT BASE UNIT BASE UNIT EXTERIOR UNIT DUCT FLANGE FIELD DUCT WEATHERPROOF THIS SEAM FIELD DUCT UNIT DUCT FLANGE UNIT DUCT FLANGE FIELD DUCT UNIT BASE AIR PROOF THIS SEAM UNIT EXTERIOR UNIT DUCT FLANGE UNIT DUCT FLANGE WEATHERPROOF THIS SEAM FIELD DUCT UNIT BASE NOT RECOMMENDED FIELD DUCT WATERPROOF SEAM WITH BUTYL OR SILICONE FIELD DUCT DOWNFLOW UNIT EXTERIOR UNIT DUCT FLANGE UNIT DUCT FLANGE WEATHERPROOF THIS SEAM T
PAGE 12
FILTER INSTALLATION AIR FILTERS TABLE 1 Filters are to be used with the WCZ036,060F heating/cooling units. The basic unit does not have filters in it. However, a filter frame accessory is offered that will allow filters to be installed within the unit. Otherwise a filter rack must be installed by the installer in the duct work. Affix the filter label supplied with the unit adjacent to the filter area. UNIT NOMINAL CFM FILTER* Sq.Ft.- SIZE FILTER RESISTANCE WCZ036F 1200 4 0.05 WCZ060F 2000 6.
PAGE 13
FIELD WIRING DIAGRAM 14 NOTES: 1. FUSED DISCONNECT SIZE, POWER WIRING AND GROUNDING OF EQUIPMENT MUST COMPLY WITH CODES. 2. BE SURE POWER SUPPLY AGREES WITH EQUIPMENT AND HEATER NAMEPLATE. 3. LOW VOLTAGE WIRING TO BE 18 AWG MINIMUM CONDUCTOR. 4. SEE HEATER NAMEPLATE FOR CURRENT RATING OF HEATER USED. 5. SEE UNIT AND HEATER DIAGRAM FOR ELECTRICAL CONNECTION DETAILS. 6. IF ELECTRIC HEATER ACCESSORY IS NOT INSTALLED OMIT THE ELECTRIC HEATER, ASSOCIATED POWER WIRES AND THE ‘W’ AND ‘X2’ THERMOSTAT WIRES. 7. FIG.
PAGE 14
SEQUENCE OF OPERATION GENERAL Operation of the unit heating and cooling cycles is automatic for HEAT and COOL functions. (The optional automatic changeover thermostat, when in the AUTO position, automatically changes to heat or cool with sufficient room temperature change.) The fan switch can be placed in either the ON position, causing continuous indoor fan operation on low speed, or the AUTO position causing fan operation to coincide with heating or cooling run cycles.
PAGE 15
lower right side of the board. The dip switches work in pairs to select the cooling/heat airflow (CFM/TON), and Fan off-delay options. COOLING OFF - DELAY OPTIONS SWITCH SETTINGS ICM FAN MOTOR ADJUSTMENTS If the airflow needs to be increased or decreased, see the Airflow Table in the Service Facts. Information on changing the speed of the blower motor is in the Blower Performance Table. Blower speed changes are made on the ICM Fan Control mounted in the control box.
PAGE 16
START - UP PRE-START QUICK CHECKLIST ● Is the unit properly located and level with the proper clearance? See Figure 5. ● Is the duct work correctly sized, run, taped, insulated, and weatherproofed with proper unit arrangement. See Ductwork Installation section.
PAGE 17
CHECKOUT PROCEDURE 16 Page 17
PAGE 18
DEMAND DEFROST SYSTEM DEFROST CONTROL PIN IDENTIFICATION The demand defrost control measures heat pump outdoor ambient temperature with a sensor located outside the outdoor coil. A second sensor located on the outdoor coil is used to measure the coil temperature. The difference between the ambient and the colder coil temperature is the difference or delta-T measurement. This delta-T measurement is representative of the operating state and relative capacity of the heat pump system.
PAGE 19
DEMAND DEFROST CONTROL CHECKOUT SYMPTOMS CHECKS 1. LED off. 1. 24V R-B & Y-B at board, with unit running? 2.Short FRC_DFT pin to TEST_COMMON pin. Is defrost cycle initiated? 2. LED flashing very rapidly (greater than 4 times/sec) or appears to be on continuously. 3. Control does not initiate a normal defrost. YES/NO ACTIONS N Repair low voltage wiring. Y Complete Check #2. N Replace defrost control. Y LED is bad but control will still function. Y Remove short. N Replace defrost control.
PAGE 20
MAINTENANCE ROUTINE MAINTENANCE BY OWNER You can do some of the periodic maintenance functions for your WCY-F unit yourself; this includes replacing the disposable or cleaning the permanent air filters, cleaning the unit cabinet, clearing the condenser coil, and conducting a general unit inspection on a regular basis. MAINTENANCE PERFORMED BY SERVICEMAN-HEATING SEASON Complete the unit inspections and service routines described below at the beginning of each heating season.
PAGE 21
LIMITED WARRANTY HIGH EFFICIENCY HEAT PUMP WCZ, WCY AND WCX Models Less Than 20 Tons for Residential Use* (Parts Only) This limited warranty is extended by American Standard Inc., to the original purchaser and to any succeeding owner of the real property to which the Heat Pump is originally affixed, and applies to products purchased and retained for use within the U.S.A. and Canada.
PAGE 22
LIMITED WARRANTY HIGH EFFICIENCY HEAT PUMP WCZ, WCY, WCX, WCC, WCD, WCH, WCM and WSC Models Less Than 20 Tons for Commercial Use* (Parts Only) This warranty is extended by American Standard Inc., to the original purchaser and to any succeeding owner of the real property to which the Heat Pump is originally affixed, and applies to products purchased and retained for use within the U.S.A. and Canada. There is no warranty against corrosion, erosion or deterioration.