Whirlpool Gold WGPH45**AM Installation instructions

INSTALLATION INSTRUCTIONS FOR

PACKAGE HEAT PUMP OR PACKAGE COOLING UNIT

Table of Contents

HEAT PUMP/ELECTRIC COOLING SAFETY...............................1

INSTALLATION REQUIREMENTS ................................................2

Tools and Parts ............................................................................2

Location Requirements ................................................................2

Ductwork Requirements ..............................................................4

Electrical Requirements ...............................................................4

SEQUENCE OF OPERATION ........................................................7

Start-up Procedure—Cooling Cycle ............................................7

Start-up Procedure—Heat Pump ................................................8

Final System Checks....................................................................8

Explanation and Guidance—Heat Pump.....................................8

Defrost Cycle................................................................................9

System Troubleshooting ............................................................10

Circulating Air Blower.................................................................11

Blower Performance Data ..........................................................12

INSTALLATION INSTRUCTIONS ..................................................4

Inspect Shipment .........................................................................4

Place Heat Pump or Air Conditioning Unit in Final Location.......5

Connect Condensate Drain .........................................................5

Install Ductwork............................................................................5

Filters ............................................................................................5

Electric Heat Installation and Adjustment....................................6

Make Electrical Connections .......................................................6

Complete Installation ...................................................................7

CHARGE VERIFICATION .............................................................14

SYSTEM MAINTENANCE ............................................................16

TROUBLESHOOTING ..................................................................17

ASSISTANCE OR SERVICE .........................................................20

Accessories ................................................................................20

HEAT PUMP/ELECTRIC COOLING SAFETY

Recognize this symbol as a safety precaution.

Please adhere to the following warnings and cautions when installing, adjusting, altering, servicing or operating this unit.

ATTENTION INSTALLATION PERSONNEL

Prior to installation, thoroughly familiarize yourself with this installation manual. Observe all safety warnings.

During installation or repair, caution is to be observed.

It is your responsibility to install the product safely and to educate the customer on its safe use.

Recognize Safety Symbols, Words and Labels

The following symbols and labels are used throughout this manual to indicate immediate or potential hazards.It is the owner’s responsibility to read and comply with all safety information and instructions accompanying these symbols. Failure to heed safety information increases the risk of serious personal injury or death, property damage and/or product damage.

WARNING

Hazards or unsafe practices could result in property

CAUTION

Hazards or unsafe practices may result in property damage, product damage, personal injury or death.

Placeho for Ba

Code

Whirlpool Gold

®

Models

WGPH45**AM, WPC45**AM

WPIO-362

CAUTION

Goodman 9

Hazards or unsafe practices may result in property or product damage.

Tradewinds Distributing Company, LLC

14610 Breakers Drive

Jacksonville, FL 32258

WARNING

Installation and repair of this unit should be performed ONLY by individuals meeting

Goodman 7

as specified by the Air-Conditioning, Heating and

Refrigeration Institute (AHRI). Attempting to install or repair this unit without such background may result in product damage, personal injury or death.

WARNING

Disconnect ALL power before servicing.

Multiple power sources may be present.

Failure to do so may cause property damage, personal injury or death.

WARNING

Goodman 36

certified for use with this unit. Serious property damage, personal injury, reduced unit performance and/or hazardous conditions may result from the use of such non-approved devices.

WARNING

Goodman 79

during the finishing phases of construction on a new structure. This type of use may result in premature failure of the unit due to extremely low return air temperatures and exposure to corrosive or very dirty atmospheres.

WARNING

Goodman 98

Connecting unit ductwork to unauthorized heat producing devices such as a fireplace insert, stove, etc., may result in property damage, fire, carbon monoxide poisoning, explosion, personal injury or death.

WARNING

Goodman 45

chemicals which may cause serious illness or death and which are known to the State of California to cause cancer, birth defects or other reproductive harm.

WARNING

Goodman 37

To prevent the risk of property damage, personal injury, or death, do not store combustible materials or use gasoline or other flammable liquids or vapors in the vicinity of this unit.

IMPORTANT: The United States Environmental Protection

Agency (EPA) has issued various regulations regarding the introduction and disposal of refrigerants in this unit. Failure to follow these regulations may harm the environment and can lead to the imposition of substantial fines. These regulations may vary by jurisdiction. A certified technician must perform the installation and service of this product. Should questions arise, contact your local EPA office.

This product is designed and manufactured to permit installation in accordance with national codes. It is the installer’s responsibility to install this unit in accordance with national codes and/or prevailing local codes and regulations.

2

INSTALLATION REQUIREMENTS

These instructions are intended as a general guide only for use by qualified persons and do not supersede any national or local codes in any way. Compliance with all local, state, or national codes pertaining to this type of equipment should be determined prior to installation.

Read this entire instruction manual, as well as the instructions supplied in separate equipment, before starting the installation.

The installation of the heat pump or air conditioning unit, wiring, warm air ducts, venting, etc., must conform to the requirements of the National Fire Protection Association; the National Electrical

Code, ANSI/NFPA No. 70 (latest edition) in the United States, and any state laws, local ordinances (including plumbing or wastewater codes). Local authorities having jurisdiction should be consulted before installation is made. Such applicable regulations or requirements take precedence over the general instructions in this manual.

Tools and Parts

Gather the required tools before starting installation. Read and follow the instructions provided with any tools listed here.

Tools needed

■ ⁵⁄₁₆" nut driver

■ Screwdriver

Parts needed

■ Tape measure

Check local codes and existing electrical supply. Read “Electrical

Requirements” and “Ductwork Requirements” before purchasing parts.

Location Requirements

Consider the effect of the outdoor fan noise on conditioned space and any adjacent occupied space. It is recommended that the unit be placed so that the condenser air discharge does not blow toward windows less than 25 ft (7.6 m) away.

Heat pumps require special location consideration in areas of heavy snow accumulation and/or areas with prolonged continuous subfreezing temperatures. Heat pump unit bases have holes under the outdoor coil to permit drainage of defrost water accumulation. The unit must be situated to allow free unobstructed drainage of the defrost water and ice. A minimum

2" (5.1 cm) clearance under the outdoor coil is required in milder climates.

Ground Level Preinstallation Details

The unit should be set on a solid, level foundation, preferably a concrete slab at least 4" (10.2 cm) thick. The slab should be above ground level and surrounded by a graveled area for good drainage. Any slab used as a unit’s foundation should not adjoin the building, since it is possible that sound and vibration may be transmitted to the structure.

Rooftop Preinstallation Details

Check that the roof is weathertight and allows proper drainage of condensation. Use steel or treated wood beams as unit support for load distribution.

NOTE: To ensure proper condensate drainage, the unit must be installed in a level position.

■ To avoid possible property damage or personal injury, the roof must have sufficient structural strength to carry the weight of the unit(s) and snow or water loads as required by local codes. Consult a structural engineer to determine the weight capabilities of the roof.

■

■

The unit may be installed directly on wood floors or on Class

A, Class B, or Class C roof covering material.

To avoid possible personal injury, a safe, flat surface for service personnel should be provided.

Rooftop Installation

■ The ductwork must be placed into the roof curb before mounting the package unit.

Roof Curb G 2009 ENV3

Roof Curb Installations Only

NOTES:

■

■

■

■

Sufficient structural support must be determined prior to locating and mounting the curb and package unit.

Curb insulation, cant strips, flashing and general roofing material are furnished by the contractor.

Curbing must be installed in compliance with the National

Roofing Contractors Association Manual.

Construct ductwork using current industry guidelines.

Minimum Clearances

The unit is designed to be located outside the building with an unobstructed condenser air inlet and discharge. Additionally, the unit must be situated to permit access for service and installation.

Condenser air enters from 3 sides. Air discharges upward from the top of the unit. Refrigerant gauge connections are made on the right-hand side of the unit as you face the compressor compartment.

Electrical connections can be made on the right-hand side of the unit. The best and most common application is for the unit to be located 10" (25.4 cm) from the wall (4" [10.2 cm] minimum) with the connection side facing the wall. This close-to-the-wall application minimizes exposed wiring. Close-to-the-wall application assures free, unobstructed air to the other 2 sides. In more confined application spaces, such as corners, provide a minimum 10" (25.4 cm) clearance on all air inlet sides.

Allow 18" (45.7 cm) minimum for service access to the compressor compartment and controls. The top of the unit should be completely unobstructed.

If the unit is to be located under an overhang, there should be a minimum of 36" (91.4 cm) clearance and provisions made to deflect the warm discharge air out from under the overhang.

3

Minimum Clearances

36"

(91.4 cm)

B

A

10"

(25.4 cm)

Down Discharge Applications

Cut insulation around bottom openings and remove panels from the bottom of the unit, saving the screws holding the panels in place.

NOTE: Single phase models require installation of horizontal duct kit #20464501PDGK (medium chassis) and #20464502PDGK

(large chassis).

Panel Removal

4

C

36"

(91.4 cm)

36"

(91.4 cm)

A. Wall

B. Unit

C. Curb

■

■

■

■

Ductwork Requirements

Install all conditioned air plenums, ducts and air filters in accordance with NFPA 90B Standard for the Installation of

Warm Air Heating and Air-Conditioning Systems (latest edition).

The heat pump or air conditioning unit is provided with flanges for the connection of the plenum and ducts.

All air filters must be listed as Class 2 air filters.

All ductwork must be made of materials and insulated to meet local, state and national codes. Ductwork installed outdoors must be sealed, weatherproof and sheltered against physical damage. Caulking, flashing or other means of adequately providing a permanent weather seal should be used where duct penetrates a building or structure opening.

Airflow Conversion

Units can easily be converted from horizontal to downflow airflow delivery. In downflow or high static installations, the installer should measure the total external static and review the blower performance charts before performing the installation. In some installations it will be necessary to change the blower speed to provide proper airflow.

Horizontal Airflow

Single phase models are shipped without horizontal duct covers.

If needed, these kits may be ordered through your local supplier.

B

A. Supply air panel

B. Return air panel

A

Electrical Requirements

WARNING

HIGH VOLTAGE!



NOTE: All outdoor wiring must be suitable for outdoor use. Use copper conductors only.

■

■

■

All field wiring must be done in accordance with National

Electrical Code requirements, applicable requirements of UL, or local codes, where applicable.

Electrical wiring, disconnect means and over-current protection are to be supplied by the installer. Refer to the rating plate for the maximum over-current protection, minimum service ampacity, and operating voltage. See the wiring connection diagrams in “Troubleshooting.”

This heat pump or air conditioning unit must be electrically grounded in accordance with National Electric Code (ANSI/

NFPA 70) requirements, applicable requirements of UL, or local codes, where applicable.

INSTALLATION INSTRUCTIONS

Be sure to examine the heat pump or air conditioning unit inside the carton if the carton is damaged.

Inspect Shipment

This heat pump or air conditioning unit is shipped in one package, completely assembled and wired. The indoor thermostat and accessories are shipped in a separate carton when ordered.

■

■

Check the heat pump or air conditioning unit rating plate to confirm specifications are as ordered.

Upon receipt of heat pump or air conditioning unit, inspect it for possible shipping damage.

■ If damage is found, it should be noted on the carrier’s freight bill. Damage claims should be filed with the carrier immediately. Claims of shortages should be filed with the seller within 5 days.

NOTE: If any damages are discovered and reported to the carrier, do not install the heat pump or air conditioning unit, since your claim may be denied.

A

Place Heat Pump or Air Conditioning Unit in

Final Location

WARNING an upright position during all rigging and moving operations. To facilitate lifting and moving when a crane is used, place the unit in an adequate cable sling.

WARNING

To prevent property damage, personal injury or death,

Goodman 110 the weight of the unit(s), roof curb, snow loads and water loads as required by local codes. Consult a structural engineer to determine the weight capabilities of the roof.

CAUTION service personnel should be provided.

IMPORTANT: If you are using a bottom discharge with the roof curb, the ductwork should be attached to the curb prior to the installation of the unit.

Lower the unit carefully onto the roof mounting curb. While you are rigging the unit, the center of gravity will cause the condenser end of the unit to be lower than the supply air end.

Rigging

Placeholder for Rigging art

Connect Condensate Drain

The condensate drain connection of the evaporator is a half coupling of ³⁄₄" N.P.T. A ³⁄₄" drain line with trap must be installed on all applications to avoid accumulation of condensate.

Condensate Drain Connection

■

■

■

Install the condensate drain trap as shown. Use a ³⁄₄" (1.9 cm)

NPT drain connection size or larger.

An external trap must be installed for proper condensate drainage.

Unit must be level or slightly inclined toward drain.

F

E

D

A. Drain connection

B. 2" (5.1 cm) minimum

C. 3" (7.6 cm) minimum

B

C

D. Positive liquid seal (required)

E. Flexible tubing, hose or pipe

F. Unit

Install Ductwork

IMPORTANT:

■ Install ductwork in accordance with NFPA 90B and any local codes.

■ When the unit is installed so that the supply ducts carry air circulated by the unit to areas outside the space containing the unit, the return air shall be handled by a duct or ducts sealed to the unit casing and terminated outsides the space containing the unit.

■ If there is no complete return air duct system, the return air connection must be sealed to the unit casing and run full size to a location outside the utility room or space housing the unit to avoid a negative pressure on the venting system.

Filters

Filters are not provided with unit, and must be supplied and installed in the return duct system by the installer. A field installed filter grille is recommended for easy and convenient access to the filters for periodic inspection and cleaning. Filters must have adequate face area for the rated quantity of the unit. See the Air

Delivery Table for the recommended filter size.

Air Delivery Table

Nominal Filter Area sq ft (cm 2

)

7

(6,503)

6

(5,574)

5

(4,645)

4

(3,716)

3

(2,787)

Disposable Filter

Permanent Filter

2

(1,858)

500 1,000 1,500 2,000 2,500 3,000 3,500

Airflow - SCFM

Minimum Filter Size

Nominal Size—in. (cm) Nominal Area—sq ft (cm

2

)

10 x 20 (25.4 x 50.8)

14 x 20 (35.6 x 50.8)

14 x 25 (35.6 x 63.5)

15 x 20 (38.1 x 50.8)

16 x 20 (40.6 x 50.8)

16 x 25 (40.6 x 63.5)

20 x 20 (50.8 x 50.8)

20 x 25 (50.8 x 63.5)

25 x 25 (63.5 x 63.5)

1.4 (1,301)

1.9 (1,765)

2.4 (2,230)

2.1 (1,951)

2.2 (2,044)

2.8 (2,601)

2.8 (2,601)

3.5 (3,252)

4.3 (3,995)

5

6

Electric Heat Installation and Adjustment

WARNING

Goodman 6

HIGH VOLTAGE!




Wiring

Make Electrical Connections

WARNING

Goodman 6

HIGH VOLTAGE!




This series of electric cooling and heat pump package equipment is designed to accept a field installed electric heat kit. The unit is equipped to easily install the HKR Series Electric Heat Kit. Full installation instructions are included in this kit. Please use this document for guidance in field equipping the package unit with electric heat.

Choose the heat kit that fits the application for the specific installation. Permanently mark the unit’s nameplate with the model being installed. High and low voltage connections are detailed in the heat kit instructions.

Indoor blower motor speed tap selection may need to be modified to accommodate normal continuous operation to prevent a nuisance trip. See the following charts.

WPC45(24-48) Models

Electric Heat KW

Unit Model Number 5 8 10

WPC4524AM41

WPC4530AM41

WPC4536AM41

WPC4542AM41

WPC4548AM41

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

15

x

3

3

3

3

20

x x x x

3

All models are factory-shipped at T3 speed.

WGPH45(24-60) Models

Electric Heat KW

Unit Model Number 5

WGPH4524AM41

WGPH4530AM41

WGPH4536AM41

WGPH4543AM41

WGPH4549AM41

WGPH4560AM41 x x x x x x

8

x x x x x x

10

x x x x x x

15

x x x x x

20

x x

All wiring should be made in accordance with the National

Electrical Code (N.E.C). The local power company should be consulted to determine the availability of sufficient power to operate the unit. The voltage, frequency and phase at the power supply should be checked to make sure it corresponds to the unit’s rated voltage requirement.

Install a branch circuit fused disconnect near the unit, in accordance with the N.E.C. or local codes. Wire sizes and overcurrent protection should be determined from the unit nameplate ampacity and in accordance with Branch Circuit Ampacity chart or the N.E.C. Under no circumstances should wiring be sized smaller than is recommended by either of these 2 sources.

Branch Circuit

Ampacity

Supply Wire

Length—ft (m)

200 (61)

150 (45.7)

100 (30.5)

50 (15.2)

15 20 25 30 35 40 45 50

6 4

8 6

10 8

4

6

8

4

4

6

3

4

6

3

4

6

2

3

4

14 12 10 10 8 8 6

2

3

4

6

Fuses smaller than that recommended on the wiring diagrams could result in unnecessary fuse failure or service calls. The use of protective devices of larger size than indicated could result in extensive damage to the equipment. The manufacturer bears no responsibility for damage caused to equipment as result of the use of larger than is recommended size protective devices.

All units have undergone a run test prior to packaging for shipment. This equipment has been started at minimum rated voltage and checked for satisfactory operation. Do not attempt to operate this unit if the voltage is not within the minimum and maximum voltages shown on nameplate.

All exterior wiring must be within approved weatherproof conduit.

The unit must be permanently grounded in accordance with local codes, or in absence of local codes, with N.E.C. ANSI/ NFPA No.

70-1984 or latest edition by using ground lug in the control box.

Fuses or HACR type circuit breakers may be used where codes permit.

High Voltage Wiring

Single Phase—Connect the 2 leads to terminals L1 and L2 in the electrical control section, using wire sizes specified in the wiring table.

Red

Green

Orange

White

Brown

Purple

Yellow

Blue

Low Voltage Wiring

■ Heat pumps—Connect 24V wires from the thermostat to the corresponding wires in the control box using 18 AWG as follows:

WPC45 Terminal 24-60 Thermostat

Red

Green

White

Brown

Yellow

Blue

WGPH45

Terminal

R (24V)

G (Fan)

W1 (Heat)*

W2 (Heat)*

Y (Cool)

C (24V Common)

24-43 Thermostat 49-60 Thermostat

R (24V)

G (Fan)

O (Rev. Valve)

W1 (Heat, 2 nd )*

W2 (Heat, 3 rd )*

Not used

Y1 (Cool)

C (24V Common)

R (24V)

G (Fan)

O (Rev. Valve)

W1 (Heat, 2 nd )*

W2 (Heat, 3 rd )*

Y1 (Low Cool)

Y2 (High Cool)

C (24V Common

*Optional field installed heat connections

NOTES:

■ Thermostats must be set to energize “G” during cooling. This is default on most all thermostats.

■ WGPH4549 and WGPH4560 have 2-stage cooling and require 2-stage heat/cool with optional 3 rd -stage electric heat thermostat.

Internal Wiring

A diagram detailing the internal wiring of this unit is located on the electrical box cover. If any of the original wire supplied with the appliance must be replaced, the wire gauge and insulation must be the same as the original wiring.

Transformer is wired for 230 volts on the 208/230 models. See the wiring diagram for 208-volt wiring.

1. Disconnect power.

2. Remove the control access panel.

3. Route the field supply wires through the line voltage conduit opening to the electrical connection area, providing sufficient length to connect to the pigtail leads.

Single Phase Units

■ Connect the field supply wires (L1, L2) to the 2 black pigtail leads using UL-Listed wire connectors.

Complete Installation

IMPORTANT: Do not use this heat pump or condensing unit if any part has been under water. Immediately call a qualified person to inspect the heat pump or condensing unit and to replace any part of the control system which has been under water.

1. Check that you have all of your tools.

2. Dispose of/recycle all packaging materials.

3. Check the heat pump or condensing unit in its final location.

SEQUENCE OF OPERATION

Start-up Procedure—Cooling Cycle

WARNING

4. Verify that all of the registers are set to the normal open position.

5. Turn on the electrical supply at the disconnect.

6. Turn the fan switch to the “ON” position. The blower should operate after a 7-second delay.




7. Turn the fan switch to the “Auto” position. The blower should stop after an approximate 60-second delay.

8. Slowly lower the cooling temperature until the unit starts. The compressor, blower and fan should now be operating.

1. Disconnect power.

2. Turn the thermostat switch to “Cool” and the fan switch to

“Auto.”

9. Allow the unit to run for 10 minutes. Check that cool air is being supplied by the unit.

10. Turn the temperature setting to the highest position, stopping the unit. The indoor blower will continue to run for approximately 60 seconds.

3. Set the temperature setting to the highest setting.

11. Turn the thermostat switch to “OFF” and disconnect all power when servicing the unit.

7

Start-up Procedure—Heat Pump

WARNING




1. Check that the cooling mode for the heat pump is working properly according to the procedure listed in the “Start-up

Procedure—Cooling Cycle” section.

■ The reversing valve is energized when the thermostat is placed in the cooling position.

■

■

A clicking sound should be noticeable from the reversing valve.

By lowering the temperature setting to call for cooling, the contactor is energized.

■ The compressor, blower and fan should then be running.

2. After the cooling mode is checked out, turn the thermostat system switch to “OFF.”

3. Turn the thermostat switch to “HEAT” and the fan switch to

“AUTO.”

4. Slowly raise the heating temperature setting. When the heating 1 st stage makes contact, stop raising the temperature setting. The compressor, blower and fan should now be running with the reversing valve in the deenergized (heating) position.

5. After giving the unit time to settle out, check that the unit is supplying heated air.

6. If the outdoor ambient is above 80°F (26.7ºC), the unit may trip on its high pressure cutout when on heating. The compressor should stop.

7. The heating cycle must be thoroughly checked, so postpone the test to another day when conditions are more suitable.

IMPORTANT: Be sure to test the unit.

8. If the outdoor ambient is low and the unit operates properly on the heating cycle, you may check the pressure cutout operation by blocking off the indoor return air until the unit trips.

9. If the unit operates properly in the heating cycle, raise the temperature setting until the heating 2 nd stage makes contact.

Supplemental resistance heat, if installed, should now turn on. Check that the supplemental resistant heat operates properly.

NOTES:

■

■

WGPH4549-60 has 2 stages of compressor heat. During the resistance heat test, increase the temperature setting until the 3 rd -stage heat is energized.

If outdoor thermostats are installed, the outdoor ambient temperature must be below the set point of these thermostats for the heaters to operate. It may be necessary to jumper these thermostats to check heater operation if outdoor ambient temperature is mild.

10. For thermostats with an emergency heat switch, raise the temperature setting until the heating 2 nd stage makes contact.

NOTE: The emergency heat switch is located at the bottom of the thermostat. Move the switch to emergency heat. The heat pump will stop, the blower will continue to run, all heaters will come on, and the thermostat emergency heat light will turn on.

8

11. If the unit is being checked in the wintertime when the outdoor coil is cold enough to activate the defrost control, observe at least one defrost cycle to make sure the unit defrosts completely.

Final System Checks

1. Check that all supply and return air grilles are adjusted and the air distribution system is balanced for the best compromise between heating and cooling.

2. Check for air leaks in the ductwork. See “Airflow

Measurement and Adjustment” and “Checking Charge.”

3. Check that the unit is free of “rattles,” and the tubing in the unit is free from excessive vibration.

4. Check that the tubes and lines are not rubbing against each other or against the sheet metal surfaces or edges. If contact is found, correct the problem.

5. Set the thermostat at the appropriate setting for cooling and heating or automatic changeover for normal use.

6. Check that the owner is instructed on the unit operation, filter, servicing, correct thermostat operation, etc.

7. The previous sections are recommended to serve as an indication that the unit will operate normally.

Explanation and Guidance—Heat Pump

When the heat pump is in the cooling cycle, the heat pump operates exactly as an air conditioning unit.

The heat pump operates in the heating cycle by redirecting refrigerant flow through the refrigerant circuit external to the compressor. This is accomplished through the reversing valve.

Hot discharge vapor from the compressor is directed to the indoor coil (evaporator on the cooling cycle) where the heat is removed, and the vapor condenses to a liquid. It then goes through the expansion device to the outdoor coil (condenser on the cooling cycle) where the liquid is evaporated, and the vapor goes to the compressor.

When the solenoid valve coil is operated either from heating to cooling or cooling to heating, the piston in the reversing valve to the low pressure (high pressure) reverses position in the reversing valve.

The following illustrations show a schematic of a heat pump on the cooling cycle and the heating cycle. In addition to a reversing valve, a heat pump is equipped with an expansion device and check valve for the indoor coil, and similar equipment for the outdoor coil. It is also provided with a defrost control system.

The expansion devices are flowrator distributors and perform the same function on the heating cycle as on the cooling cycle. The flowrator distributors also act as check valves to allow for the reverse of refrigerant flow.

When the heat pump is on the heating cycle, the outdoor coil is functioning as an evaporator. The temperature of the refrigerant in the outdoor coil must be below the temperature of the outdoor air in order to extract heat from the air. Thus, the greater the difference in the outdoor temperature and the outdoor coil temperature, the greater the heating capacity of the heat pump.

This phenomenon is a characteristic of a heat pump. It is a good practice to provide supplementary heat for all heat pump installations in areas where the temperature drops below 45°F

(7.2ºC). It is also a good practice to provide sufficient supplementary heat to handle the entire heating requirement should there be a component failure of the heat pump, such as a compressor, refrigerant leak, etc.

Since the temperature of the refrigerant in the outdoor coil on the heating cycle is generally below the freezing point, frost forms on the surfaces of the outdoor coil under certain weather conditions.

Therefore, it is necessary to reverse the flow of the refrigerant to provide hot gas in the outdoor coil to melt the frost accumulation.

This is accomplished by reversing the heat pump to the cooling cycle. At the same time, the outdoor fan stops to hasten the temperature rise of the outdoor coil and lessen the time required for defrosting. The indoor blower continues to run, and the supplementary heaters are energized.

Cooling Cycle

C

D

B

A

E

C F

H

G

C

H

J

I

A. Evaporator

B. Service valves

C. Service ports

D. Reversing valve

B

E. Condenser

F. Accumulator

G. Compressor

H. Distributors

Heating Cycle

C

B

A

J

K

I. Indoor coil

J. Check valve orifices

K. Outdoor coil

D

E

F

The defrost control will initiate a defrost cycle when the selected time period has elapsed and the defrost sensor sees a temperature below freezing. At the start of a defrost cycle, the defrost control will energize the reversing valve solenoid, shifting the reversing valve and de-energizing the outdoor fan. The defrost relay will also close, energizing temporary heat for increased comfort during defrost (if the indoor unit is so equipped). The heat pump will remain in defrost until the defrost sensor has determined that the frost has been removed from the coil or a 10-minute period has elapsed, whichever comes first.

Defrost Control

During operation, the power to the circuit board is controlled by a temperature sensor, which is clamped to a feeder tube entering the outdoor coil. Defrost timing periods of 30, 60 and 90 minutes may be selected by connecting the circuit board jumper to 30,

60 and 90, respectively. Accumulation of time for the timing period selected starts when the sensor closes (approximately

34°F [1ºC]), and when the wall thermostat calls for heat. At the end of the timing period, the unit’s defrost cycle will be initiated provided the sensor remains closed. When the sensor opens

(approximately 60°F [16ºC]), the defrost cycle is terminated and the timing period is reset. If the defrost cycle is not terminated due to the sensor temperature, a 10-minute override interrupts the unit’s defrost period.

Circuit Board

DF2

TEST

90

60

30

A

Jumper Wire

C Y W2 R R DFT

DF1

H

G

C

J

I

A. Condenser

B. Service valves

C. Service ports

D. Reversing valve

B

E. Evaporator

F. Accumulator

G. Compressor

H. Distributors

J

K

I. Indoor coil

J. Check valve orifices

K. Outdoor coil

Defrost Cycle

H

If the outdoor ambient conditions are such that frost forms on the outdoor coil, the defrost control monitors a defrost cycle. It then runs the defrost cycle as ambient temperatures require.

The defrost control is time/temperature initiated and temperature terminated with a maximum defrost time (time-out) of 10 minutes.

The time between defrost cycles is preset at 60-minute intervals at the factory, but can be field adjusted between 30, 60, or

90 minutes.

Suggested Field Testing/Troubleshooting

1. Run the unit in the heating mode (room thermostat calling for heat).

2. Check the unit for proper charge.

NOTE: Bands of frost on the condenser coil indicate low refrigerant charge.

3. Turn off power to the unit.

4. Disconnect the outdoor fan by removing the purple lead from

“DF2” on the defrost control.

5. Restart the unit and allow frost to accumulate.

6. After a few minutes of operation, the defrost thermostat should close. To verify this, check for 24 volts between “DFT” and “C” on the control board. If the temperature at the thermostat is less than 28°F (-2ºC) and the thermostat is open, replace the defrost thermostat, since it is defective.

7. When the defrost thermostat has closed, short the test pins on the circuit board until the reversing valve shifts, indicating defrost. This should take up to 21 seconds depending on what timing period the control is set.

NOTE: After defrost initiation, the short must instantly be removed, or the unit’s defrost period will last only 2.3 seconds.

8. After the defrost thermostat has terminated, check the defrost thermostat for 24 volts between “DFT” and “C.” The reading should indicate 0 volts (open sensor).

9. Turn off power to the unit.

10. Replace the outdoor fan motor lead to terminal “DF2” on the circuit board and turn on power.

9

System Troubleshooting

Symptom

High head—low suction

High head—high or normal suction

Low head—high suction

Unit will not run.

Condenser fan runs; compressor does not run.

Low suction—Cool compressor, iced evaporator coil

■

Compressor short cycles

Registers sweat

■

■

■

■

High suction pressure

Insufficient cooling

Evaporator coil freezing or frosting

■

■

■

■

■

■

■

■

■

■

■

■

■

■

■

■

■

■

■

■

■

■

Possible Cause

■

■

■

■

■

■

■

■

Restriction in liquid line or flowrator

Dirty condenser coil

Overcharged

Condenser fan not running

Incorrect flowrator

Defective compressor valves

Flowrator not seating properly

Power off or loose electrical connection

Thermostat out of calibration; set too high

Defective contactor

Blown fuses or tripped circuit breaker

Transformer defective

High or low pressure control (optional) open

Compressor overload contacts open

■

■

■

■

■

■

Loose connection

Compressor stuck

Grounded or open winding

Open internal overload

Low voltage connection

Capacitor weak, open or shorted

Low indoor airflow

■

■

■

■

■

■

Remedy

■

■

■

■

■

■

■

■

Remove or replace with proper size flowrator.

Clean coil.

Correct system charge.

Repair or replace condenser fan.

Replace with correct flowrator.

Replace compressor.

Check for debris under flowrator or deformed flowrator.

Remove debris or replace flowrator.

Check for unit voltage at contactor in unit.

Reset thermostat.

Check for 24 volts at contactor coil. Replace if contacts are open.

Replace fuse or reset circuit breaker. Check wiring.

Replace transformer.

Reset high pressure control or check unit charge.

High pressure control opens at 610 psig, and low pressure control opens at 22 psig.

Replace compressor.

NOTE: Wait at least 2 hours for overload to reset.

Check for unit voltage at compressor.

Check and tighten all connections.

Wait at least 2 hours for overload to reset. If still open, replace the compressor.

At compressor terminals, voltage must be within 10% of nameplate volts when unit is operating.

Check capacitor. Replace if defective.

Increase speed of blower or reduce restriction.

Replace air filters.

Defective overload protector

Unit cycling on low pressure control

High pressure switch cuts out

Low airflow

Excessive load

Defective compressor

Reversing valve not seating properly.

Improperly sized unit

Improper airflow

Incorrect refrigerant charge.

Incorrect voltage

Low airflow

Low refrigerant charge

Operating unit in cooling mode below

65ºF (18ºC) outdoor temperature

■

■

■

■

■

■

■

■

■

■

■

■

■

■

■

Replace overload protector. Check for correct voltage.

Check refrigerant charge and/or airflow.

Check airflow (indoor and outdoor)

Increase speed of blower or reduce restriction.

Replace air filters.

Recheck load calculation

Replace compressor.

Replace reversing valve.

Recalculate load.

Check airflow—should be approximately 400 CFM per ton.

Charge per procedure attached to unit service panel.

At compressor terminals, voltage must be within 10% of nameplate volts when unit is operating.

Check airflow—should be approximately 400 CFM per ton.

Properly charge unit.

Install or check low ambient control—should be open below 65ºF (18ºC) outdoor temperature.

10

WARNING

HIGH VOLTAGE!



Airflow Measurement and Adjustment

Circulating Air Blower

ECM Motor Speed Adjustment

Each ECM blower motor has been preprogrammed for operation at 4 distinct airflow levels when operating in Cooling/ Heat Pump mode or Electric Heat mode. These 4 distinct levels may also be adjusted slightly lower or higher if desired.

The adjustment between levels and the trim adjustments are made by changing the DIP switch(s) either to an OFF or ON position. See Blower Performance Data charts.

Please review the ductwork section before proceeding with the airflow measurements and adjustments in this section.

The unit blower curves (see Specification Sheets) are based on the external static pressure (ESP per in./W.C.). The duct openings on the unit are considered internal static pressure. As long as

ESP is maintained, the unit will deliver the proper air up to the maximum static pressure listed for the CFM required by the application (for example, home, building, etc.).

In general, 400 CFM per ton of cooling capacity is a rule of thumb. Some applications depending on the sensible and latent capacity requirements may need only 350 CFM or up to 425 CFM per ton. Check condition space load requirements (from load calculations) and equipment expanded ratings data to match

CFM and capacity.

After the unit is set and the ductwork completed, verify the ESP with a 1" (2.5 cm) inclined manometer with pitot tubes or a

Magnahelic gauge and confirm CFM to blower curves in the

Specification Sheets. All units have 3-speed blower motors. If the low speed is not utilized, the speed tap can be changed to medium or high speed.

NOTE: Never run CFM below 350 CFM per ton. Evaporator freezing or poor unit performance is possible.

WGPH45 DIP Switch Functions

The ECM motor has an electronic control that contains

8 2-position DIP switches. The function of these DIP switches is shown in the following chart.

DIP Switch Number Function

3

4

1

2

Electric Heat

N/A

Indoor Thermostat

7

8

5

6

Cooling and Heat Pump CFM

CFM Trim Adjust

For WGPH4524-43 models, DIP Switch 4 must be set to ON. DIP

Switch 4 must be set to OFF for 2-stage compressor models

WGPH4549-60. DIP Switch 4 ON energizes Y1 signal to the ECM motor anytime Y/Y2 is energized. The indoor motor will not operate properly if switch is not set correctly for the model.

WGPH CFM Delivery and Adjustments

See “Circulating Air Blower” for CFM output, adjustments and

DIP switch settings.

WGPH Thermostat Fan Only Mode

Adjusting Speed Tap for Indoor Blower Motor

During Fan Only operations, the CFM output is 50% of the high-stage cooling setting.

X-13 Motor

Adjust the CFM by changing the 24V low voltage lead at the speed terminal block on the motor. (T1—Low Speed, T2 and

T3—Medium Speed, T4 and T5—High Speed).

NOTE: Factory set T1 (G, Fan), T2 (Cool/High cool), T3 (W2 Electric

Heat), T4 and T5 reserved for high static (Cool/High Cool) and W2.

WGPH Humidity Control

When using a Humidistat (normally closed), cut jumper PJ6 on the control board. The Humidistat will affect both low-stage and high-stage cooling airflow by adjusting the airflow to 85%.

ECM Motor

The ECM control board is factory-set with the DIP Switch 4 in the

“ON” position for single stage units and to the "OFF" position for the 2-stage units. All other DIP switches are factory-set in the

“OFF” position. For most applications, the settings are to be changed according to the electric heat size.

■

■

■

■

The ECM motor provides many features not available on the traditional PSC motor. These features include:

Improved Efficiency

Constant CFM

Soft Start and Stop

Improved Humidity Control

WGPH 2-Stage Heating

When using staged electric heat, cut jumper PJ4 on the control board.

WGPH Thermostat Wiring

Use the thermostat wiring diagrams provided with the thermostat when making these connections.

11

Blower Performance Data

Model

WPC4524AM

WPC4530AM

WPC4536AM

WPC4542AM

WPC4548AM

Speed

T1 (G)

T2/T3

T4/T5

T1 (G)

T2/T3

T4/T5

T1 (G)

T2/T3

T4/T5

T1

T2/T3

T4/T5

T1

T2/T3

T4/T5

E.S.P. (In. of H

2

O)

Volts—230 0.1

0.2

0.3

Watts

CFM

Watts

CFM

Watts

CFM

Watts

Watts

CFM

Watts

CFM

Watts

CFM

Watts

CFM

Watts

CFM

Watts

CFM

Watts

CFM

Watts

CFM

CFM

Watts

CFM

Watts

CFM

Watts

CFM

372

1,199

162

1,799

480

1,921

582

202

1,267

218

1,123

162

1,437

310

1,528

87

1,132

153

1,287

211

852

80

1,232

882

82

933

93

1,058

124

893

0.4

808

86

873

727

92

810

103 109

1,012 945

136

824

142

752

95 101 111

1,070 1,011 959

162 168 179

1,236 1,165 1,123

217

764

228

711

239

592

82 86 95

1,190 1,131 1,082

649

102

733

120

896

153

665

214 221 229

1,213 1,162 1,120

226 236 245

1,070 1,025 984

170 182 193

1,390 1,354 1,318

317 331 342

1,490 1,450 1,410

379 391 403

1,138 1,085 1,017

173 185 193

1,745 1,698 1,658

493 508 521

1,865 1,818 1,780

585 602 625

■

■

NOTES:

■ Data shown is dry coil. Wet coil pressure drop is approximately 0.2" H

2 for 4-row indoor coil.

0, for 3-row indoor coil; and 0.3" H

2

0,

■ Data shown does not include filter pressure drop, approximately 0.08" H

2

O.

All models should run no less than 350 CFM/Ton.

Reduce airflow by 2% for 208-volt operation.

D

D

D

WGPH4524AM

Cooling/HP

Speed

Adjust

Tap CFM*

Minus 630

Normal 700

Plus 770

Electric

Heat

D

D

D

Adjust

Tap CFM*

Minus 630

Normal 700

Plus 770

A

A

B

B

A

C

B

C

C

0.5

416

957

211

1,610

531

1,719

627

235

1,058

247

942

204

1,281

355

1,383

115

889

184

1,066

244

545

99

1,023

545

108

637

126

816

168

575

WGPH4524AM

Cooling/HP

Speed

Adjust

Tap CFM*

Electric

Heat

Minus 743

Normal 825

Plus

Minus

908

855

Normal 950

Plus 1,045

B

B

Minus 945 A

Normal 1,050 A

Plus 1,155 A

C

B

C

C

*At 0.1 to 0.5 ESP

Adjust

Tap CFM*

Minus 743

Normal 825

Plus

Minus

908

855

Normal 950

Plus 1,045

Minus 945

Normal 1,050

Plus 1,155

0.6

427

889

219

1,560

545

1,667

621

246

1,009

260

894

216

1,243

366

1,348

255

-

-

996

-

827

195

1,012

-

-

584

135

723

172

-

0.7

439

820

232

1,522

550

1,579

595

258

932

272

839

229

1,204

377

1,312

265

-

-

889

-

733

206

958

-

-

-

-

672

179

-

0.8

451

755

245

1,450

547

1,183

569

264

841

275

774

242

1,165

389

1,267

272

-

-

819

-

669

208

857

-

-

-

-

-

-

-

12

C

B

C

C

D

D

D

A

A

B

B

A

WGPH4530AM, WGPH4536AM

Cooling/HP

Speed

Adjust

Tap CFM*

Electric

Heat

Minus 720

Normal 800

Plus 880

Minus 900 C

Normal 1,000 C

Plus

Minus

1,100

990

C

B

D

D

D

Normal 1,100 B

Plus 1,210 B

Minus 1,125 A

Normal 1,250 A

Plus 1,375 A

*At 0.1 to 0.5 ESP

Adjust

Tap CFM*

Minus 720

Normal 800

Plus 880

Minus 900

Normal 1,000

Plus

Minus

1,100

990

Normal 1,100

Plus 1,210

Minus 1,125

Normal 1,250

Plus 1,375

B

B

C

C

D

C

D

D

A

A

B

A

WGPH4543AM, WGPH4549AM

Cooling/HP

Speed

Adjust

Tap CFM*

Electric

Heat

Minus 1,103 D

Normal 1,225 D

Plus*** 1,348 D

Minus** 1,260 C

Normal 1,400 C

Plus 1,540 C

Minus 1,530 B

Normal 1,700 B

Plus

Minus

1,870 B

1,620 A

Normal 1,800 A

Plus 1,980 A

*At 0.1 to 0.5 ESP

**Denotes factory setting for WGPH4543AM

***Denotes factory setting for WGPH4549AM

Adjust

Tap CFM*

Minus 1,103

Normal 1,225

Plus 1,348

Minus** 1,260

Normal 1,400

Plus 1,540

Minus 1,530

Normal 1,700

Plus

Minus

1,870

1,620

Normal 1,800

Plus*** 1,980

C

B

C

C

D

D

D

A

A

B

B

A

WGPH4560AM

Cooling/HP

Speed

Adjust

Tap CFM*

Electric

Heat

Minus 1,260 D

Normal 1,400 D

Plus 1,540 D

Minus 1,440 C

Normal 1,600 C

Plus

Minus

1,760

1,620

C

B

Normal 1,800 B

Plus 1,980 B

Minus 1,800 A

Normal 2,000 A

Plus 2,200 A

*At 0.1 to 0.5 ESP

Adjust

Tap CFM*

Minus 1,260

Normal 1,400

Plus 1,540

Minus 1,440

Normal 1,600

Plus

Minus

1,760

1,620

Normal 1,800

Plus 1,980

Minus 1,800

Normal 2,000

Plus 2,200

CFM Output for DIP Switch Combinations 1 and 2—

Electric Heat

Model

Speed

Tap Switch 1 Switch 2

Electric

Heat—CFM

WGPH4524 A

B

C

D

WGPH4530 A

B

C

D

WGPH4536 A

B

C

D

WGPH4543 A

B

C

D

WGPH4549 A

B

C

D

WGPH4560 A

B

C

D

Off

On

Off

On

Off

On

Off

On

Off

On

Off

On

Off

1,400

Off

On

Off

On

Off

On

Off

On

Off

On

Off

Off

On

On

Off

Off

On

On

Off

Off

On

On

Off

Off

On

On

Off

Off

On

On

Off

Off

On

On

1,050 (F)

950

825

700

1,250 (F)

1,100

1,000

800

1,250 (F)

1,100

1,000

800

1,800

1,700

1,400 (F)

1,225

1,800

1,700

1,400

1,225 (F)

2,000 (F)

1,800

1,600

1,400

(F) Factory setting

13


Cooling/Heating

Model

WGPH4524

Speed


Cooling/

HP—CFM

WGPH4530

WGPH4536

B

C

D

A

A

B

C

B

C

D

A

D

On

Off

On

Off

On

Off

1,400

Off

On

Off

On

Off

Off

Off

On

On

Off

Off

On

On

Off

Off

On

On

1,050 (F)

950

825

700

1,250 (F)

1,100

1,000

800

1,250 (F)

1,100

1,000

800


Cooling/Heating

Model

WGPH4543

Speed


Cooling/

HP—CFM

WGPH4549

WGPH4560

B

C

D

A

A

B

C

B

C

D

A

D

Off

On

Off

On

Off

On

Off

On

Off

On

Off

On

Off

Off

On

On

Off

Off

On

On

Off

Off

On

On

1,800

1,700

1,400 (F)

1,225

1,800

1,700

1,400

1,225 (F)

2,000 (F)

1,800

1,600

1,400

(F) Factory setting

DIP Switch Settings for Single- and 2-Stage Thermostats

Model Switch 3 Switch 4 Thermostat

WGPH45** N/A

N/A

On

Off

Single-Stage

2-Stage

Adjustments Through DIP Switch Combinations 7 and 8

CFM Switch 7 Switch 8

+10%

Normal

-10%

On

Off

Off

Off

Off

On

CHARGE VERIFICATION

Determine Superheat

1. Read suction pressure. 3. Read suction line temperature.

2. Determine Saturated Suction Temperature from tables or pressure gauge saturated temperature scale (R-410A).

4. Use the following formula to determine Superheat.

Superheat = Suction Line Temperature - Saturated Suction Temperature

PSIG

56

58

60

62

50

52

54

64

66

68

Saturated Suction Pressure Temperature

Suction Pressure Saturated Suction Temperature ºF

R-410A


PSIG

1 78

3 80

4 85

6 90

7 95

8

10

100

110

11

13

120

130

14 140

R-410A

26

29

31

36

20

21

24

41

45

49

14

Saturated Suction Pressure Temperature

Suction Pressure

PSIG

Saturated Suction Temperature ºF

R-410A


PSIG

70

72

74

15 150

16 160

17 170

76 19

Subcooling = Saturated Line Temperature - Liquid Line Temperature

R-410A

53

56

60

PSIG

265

275

285

295

305

325

355

200

210

220

225

235

245

255

Saturated Liquid Pressure Temperature

Liquid Pressure Saturated Liquid Temperature ºF

R-410A

Liquid Pressure

PSIG

70 375

73 405

76 415

78 425

80 435

83 445

85 475

88 500

90 525

92 550

95 575

97 600

101 625

108

Saturated Liquid Temperature ºF

R-410A

112

118

119

121

123

125

130

134

138

142

145

149

152

Single Speed Application—WPC45

1. Purge the gauge lines.

2. Connect the service gauge manifold to the access fittings.

Run the system for at least 10 minutes to allow the pressure to stabilize.

3. Temporarily install a thermometer on the liquid (small) line near the liquid line access fitting with adequate contact and insulate for best possible reading.

4. Check subcooling and superheat. Systems with TXV application should have a subcooling of 10 + 2°F and superheat of 15ºF to 18ºF.

a) If subcooling and superheat are low, adjust TXV to 15ºF to

18ºF, and then check subcooling.

b) If subcooling is low and superheat is high, add charge to raise subcooling to 10ºF ± 2ºF then check superheat.

c) If subcooling and superheat are high, adjust TXV valve to

15ºF to 18ºF, and then check subcooling.

d) If subcooling is high and superheat is low, adjust TXV valve to 15ºG to 18ºF superheat and remove charge to lower the subcooling to 10ºF ± 2ºF.

NOTES:

■

■

The TXV should not be adjusted at light load conditions of

55ºF (13ºC) to 60ºF (16ºC). Under such conditions, only the subcooling can be evaluated. This is because the suction pressure is dependent upon the indoor airflow and the wet bulb temperature.

Do not adjust the charge based on the suction pressure unless there is a gross undercharge.

5. Disconnect the manifold set. Installation is complete.

2-Speed Application—WGPH45

Run the unit on low-stage cooling for 10 minutes until the refrigerant pressures stabilize. Follow the guidelines and methods below to check the unit operation and ensure that the refrigerant charge is within limits. Charge the unit on low stage.

1. Purge the gauge lines.

2. Connect the service gauge manifold to the access fittings.

Run the system for at least 10 minutes to allow the pressure to stabilize.

3. Temporarily install a thermometer on the liquid (small) line near the liquid line access fitting with adequate contact and insulate for best possible reading.

4. Check subcooling and superheat. The 2-stage systems running on low stage with TXV application should have a subcooling of 5ºF to 7ºF and superheat of 15ºF to 18ºF.

a) If subcooling and superheat are low, adjust TXV to 15ºF to

18ºF superheat, then check subcooling.

NOTE: To adjust superheat, turn the valve stem clockwise to increase and counterclockwise to decrease.

b) If subcooling is low and superheat is high, add charge to raise subcooling to 5ºF to 7ºF, and then check superheat.

c) If subcooling and superheat are high, adjust TXV valve to

15ºF to 18ºF superheat, and then check subcooling.

d) If subcooling is high and superheat is low, adjust TXV valve to 15ºF to 18ºF superheat and remove charge to lower the subcooling to 5ºF to 7ºF.

NOTE: Do not adjust the charge based on the suction pressure unless there is a gross undercharge.

5. Disconnect the manifold set. Installation is complete.

15

Refrigerant Charge Check—Units with Fixed

Orifice Devices

After completing the airflow measurements and adjustments, the unit’s refrigerant charge must be checked. The unit comes factory-charged, but this charge is based on 325 CFM per ton and a minimum ESP per ARI test conditions (generally between

0.15 to 0.25 ESP). When air quantity or ESP is different than above, the refrigerant charge must be adjusted to the proper amount.

All package units with fixed orifice devices are charged using the superheat method at the compressor suction line.

For charging in the warmer months, 8ºF ± 3ºF superheat at the compressor is required at conditions 95ºF (35ºC) outdoor ambient (dry bulb) temperature, 80ºF (27ºC) dry bulb/67ºF (19ºC) wet bulb indoor ambient, approximately 50% humidity. This superheat varies when conditions vary from the conditions described.

After superheat is adjusted, it is recommended that the subcooling be checked at the condenser coil liquid line out. In most operating conditions, 10ºF to 15ºF of sub-cooling is adequate.

HIGH VOLTAGE!


Goodman 6


SYSTEM MAINTENANCE

■

WARNING

Outside Air Into Return Duct

Do not introduce cold outside air into the return duct of a heat pump installation. Do not allow air entering the indoor coil to drop below 65°F (18ºC). Air below this temperature will cause low discharge pressure, thus low suction pressure, and excessive defrost cycling resulting in low heating output. It may also cause false defrosting.

■


Undercharge

An undercharged heat pump on the heating cycle will cause low discharge pressure resulting in low suction pressure and frost accumulation on the outdoor coil.

■ The self-contained package air conditioner or heat pump should operate for many years without excessive service calls if the unit is installed properly. However, it is recommended that the homeowner inspect the unit before a seasonal start-up. The coils should be free of debris, so adequate airflow is achieved. The return and supply registers should be free of any obstructions.

The filters should be cleaned or replaced.

These few steps will help to keep the product up time to a maximum. The System Troubleshooting chart should help in identifying problems if the unit does not operate properly.

■

Poor “Terminating” Sensor Contact

The defrost terminating sensor must make good thermal contact with the outdoor coil tubing. Poor contact may not terminate the defrost cycle quickly enough to prevent the unit from cutting out on high discharge pressure.

Service

NOTE: The following information is for use by qualified service agency only. Others should not attempt to service this equipment.

Common Causes of Unsatisfactory Operation of Heat

Pump on the Heating Cycle.

■ Inadequate Air Volume Through Indoor Coil

When a heat pump is in the heating cycle, the indoor coil is functioning as a condenser. The return air filter must always be clean, and sufficient air volume must pass through the indoor coil to prevent excessive discharge pressure, and high pressure cutout.

Malfunctioning Reversing Valve

This may be due to:

1. Solenoid not energized—In order to determine if the solenoid is energized, touch the nut that holds the solenoid cover in place with a screwdriver. If the nut magnetically holds the screwdriver, the solenoid is energized and the unit is in the cooling cycle.

2. No voltage at the solenoid—Check unit voltage. If no voltage, check wiring circuit.

3. Valve will not shift—If the unit is undercharged, check for leaks. If valve body damaged, replace valve. If unit is properly charged, and it is on the heating cycle, raise the discharge pressure by restricting airflow through the indoor coil. If the valve does not shift, tap it lightly on both ends with a screwdriver handle.

NOTE: Do not tap the valve body.

If the unit is on the cooling cycle, raise the discharge pressure by restricting airflow through the outdoor coil. If the valve does not shift after the above attempts, turn off the unit and wait until the discharge and suction pressure equalize, and repeat above steps. If the valve does not shift, replace it.

16

TROUBLESHOOTING

Wiring Diagram—WGPH45(24-43)AM

WARNING

Goodman 6 Long

HIGH VOLTAGE!




NOTE: Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.

16-Pin

Plug

BK

R

VSM

BU

R

BK

1

C

2

208

TR

24V

3

240

NOTE #2

BU

Y

BU

PR

BU

R

LVDR

DC

C

Y

O

O

W2

R

Y

BK

HVDR

DF2 DF1

R

DFT

R

R

BK

W

OR

R

R

Y

H

Y

RCCF

R

PR

R

BR

C

R

F

W

BU

3

PLF

6

W

9

2

1

5

4

8

7

SA (If Used

See NOTE 3

R R

PR

BR

BK

CM

DFT

BK BK

RVC

PR

BU

BK

R

R

BK

BK

T2

T1

Y

L2

C

L1

See NOTE 4

GND

OR

R

BU

See NOTE 5

Y

LVJB

BR

Y

BK

R

S C R

COMP

STA

HUM

HUMIDI

Y1/Y

Y1

R C W2

G Y 1 R C

W1

D

OT2 OT1

W2E MO

SER

ONCO YC R

CO ND

OTC O W/W2 E/W

R

G

Y

W

BR

OR

BU

W1

W2

O

C

R

G

Y1

++

T h e r t s t a m o

Y

Y

LPS

BU

BU

HPS

Control

Box

8

-

2

2

0

4

0

/

1

/

60

Placeholder for Wiring Diagram

Factory Wiring

Line Voltage

Low Voltage

Optional High Voltage

Field Wiring

Symbol Color

OR

PR

R

W

Y

BK

BU

BR

G

High Voltage

Low Voltage

Black

Blue

Brown

Green

Orange

Purple

Red

White

Yellow

Component Legend

C Contactor

LVDR

LVJB

PLF

RVC

RCCF

SA

TR

VSM

VSTB

CM

COMP

DC

DFT

GND

HPS

HVDR

LPS

Condenser Motor

Compressor

Defrost Control

Defrost Thermostat

Equipment Ground

High Pressure Switch

High Voltage Defrost Relay

Low Pressure Switch

Low Voltage Defrost Relay

Low Voltage Junction Box

Female Plug Connector

Reversing Valve Coil

Run Capacitor for Compressor and Fan

Start Assist

Transformer

Variable Speed Motor

Variable Speed Terminal Block

NOTES:

1. Replacement wire must be the same size and the same type insulation as original (at least 105ºC). Use copper conductor only.

2. To change the evaporator motor speed, move the white and yellow leads from the EM “2” and “3” to “4” and “5.” If both leads are energized, the higher speed setting is used.

3. For 208-volt transformer operation, move the purple wires from Terminal 3 to Terminal 2 on the transformer.

4. Start assist factor equipped, when required.

5. Use copper conductors only.

++ Use N.E.C. Class 2 wire.

17

Wiring Diagram—WGPH45(49-60)AM

WARNING

Goodman 6 Long

HIGH VOLTAGE!





16-Pin

Plug

BK

R

VSM

R

BK

NOTE #2

BU

1

C

2

208

TR

3

240

24V

BU

BU

Y

BU

R

DC

C

Y

O

Y

LVDR

O

W2

R

BK

HVDR

DF2 DF1

R

DFT

R

R

BK

W

OR

R

R

Y

H

Y

RCCF

R

PR

R

C

R

BR

F

W

BU

3

PLF

6

W

9

2

1

5

4

8

7

SA (If Used)

See NOTE 3

PR PR

BU

BU

R

R

T2

BK

BK

T1

Y

L2

C

L1

BK

See NOTE 4

Y

OR

R

BU

Y

GND

LVJB

See NOTES

5 & 6

BR

STA

Y1

R C W2 W1

D W2E MO

ENSER

ONCO YC R

HUM

HUMIDI

Y1/Y G Y 1 R C OT2 OT1 OTC O W/W2 E/W

R

PR

G

Y

W

BR

OR

BU

R

Y1

G

Y2

W1

W2

O

C

++

T h e r m t o s t a

2

0

8

-

2

4

0

/

1

/

60

R R

DFT

BK BK

RVC

PR

BR

BK

CM

Y

Y

BK

R

S C R

BU

SOL

COMP

Y

Y

LPS

BU

BU

HPS

Control

Box

Placeholder for Wiring Diagram

Factory Wiring

Line Voltage

Low Voltage


Field Wiring

High Voltage

Low Voltage

Symbol Color

OR

PR

R

W

Y

BK

BU

BR

G

Black

Blue

Brown

Green

Orange

Purple

Red

White

Yellow


C Contactor

LVDR

LVJB

PLF

RVC

RCCF

SA

TR

VSM

VSTB

CM

COMP

DC

DFT

GND

HPS

HVDR

LPS

Condenser Motor

Compressor

Defrost Control

Defrost Thermostat

Equipment Ground



Low Pressure Switch






Start Assist

Transformer



NOTES:





++ Use N.E.C. Class 2 wire.

5. Set DIP Switch 4 on VSTB to Off position.

6. Refer to installation instructions for fan speed settings.

18

Wiring Diagram—WPC45**AM

WARNING

Goodman 6 Long

HIGH VOLTAGE!





BU

PR

BK

1

C

2

208

TR

24V

3

240

BU

NOTE #3

PR

BU

R

R

T2

BK

BK

T1

PR

L2

C

L1

BK

See NOTE 5

Y

BK

G

R

G GND

R R

PR

Y

R

BR

LVJB

W

G

BU

Y

Y

H C F

RCCF

R

BU

3

PLF

6

W

9

2

1

5

4

8

7

SA (If Used)

See NOTE 4

BR

PR

BR

BK

G

Y

R

G

W

BR

BU

C L G N

1 2 3 4 5

EM

See NOTE 2

G

PR

BR BK

CM

Y

BK

R

S C R

BU/PK

BU/PK

HPS

COMP

Control

Box

W2

C

++

Y

R

G

W1 r m o s t t a

T h e

2

0

8

-

2

4

0

/

1

/

60

Line Voltage

Low Voltage


Field Wiring

High Voltage

Low Voltage

Symbol Color

OR

PR

R

W

BK

BU

BR

G

Y

BU/PK

Black

Blue

Brown

Green

Orange

Purple

Red

White

Yellow

Blue/Pink


C Contactor

LVDR

LVJB

PLF

RVC

RCCF

SA

TR

VSM

VSTB

CM

COMP

DC

DFT

GND

HPS

HVDR

LPS

Condenser Motor

Compressor

Defrost Control

Defrost Thermostat

Equipment Ground



Low Pressure Switch






Start Assist

Transformer



NOTES:


2. To change the evaporator motor speed, move the white and yellow leads from the EM “2” and “3” to “4” and “5.” If both leads are energized, the higher speed setting is used.




++ Use N.E.C. Class 2 wire

19

ASSISTANCE OR SERVICE

If you need further assistance, you can write to the below address with any questions or concerns:

Tradewinds Distributing Company, LLC

14610 Breakers Drive

Jacksonville, FL 32258

Accessories

To order accessories, contact your Whirlpool ® Home Cooling and

Heating dealer.

Please include a daytime phone number in your correspondence.

WPIO-362

© 2010. All rights reserved.

®Registered Trademark/TM Trademark of Whirlpool, U.S.A.,

Manufactured under license by Tradewinds Distributing Company, LLC, Jacksonville, Florida.

Warranty provided by manufacturer. All other trademarks are owned by their respective companies.

2/10

Printed in U.S.A.

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