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Installation Instructions for Self-Contained Package 

Heat Pump Units GPHM5 15.2 SEER2 “M” SERIES (2-4 Ton)

IOG-3030A 

10/2022

Our continuing commitment to quality products may mean a change in specifications without notice. 

ATTENTION INSTALLING 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 THIS SYMBOL  

 

 AS A SAFETY PRECAUTION.

These installation instructions cover the 

outdoor

 

installation of self contained package air conditioners and 

heating units. See the Specification Sheets applicable to 

your model for information regarding accessories.

*NOTE: 

Please contact your distributor or our website 

for the applicable Specification Sheets referred to in this 

manual.

WARNING

Do not bypass safety devices.

Affix this manual and Users Information Manual

adjacent to the unit.

Daikin Comfort Technologies Manufacturing, L.P. 

19001 Kermier Rd. Waller, TX 77484

www.goodmanmfg.com

© 2022 Daikin Comfort Technologies Manufacturing, L.P. 

ONLY PERSONNEL THAT HAVE BEEN TRAINED TO 

INSTALL, ADJUST, SERVICE, MAINTENANCE OR REPAIR 

(HEREINAFTER, “SERVICE”) THE EQUIPMENT SPECIFIED 

IN THIS MANUAL SHOULD SERVICE THE EQUIPMENT. THE 

MANUFACTURER WILL NOT BE RESPONSIBLE FOR ANY 

INJURY OR PROPERTY DAMAGE ARISING FROM IMPROPER 

SERVICE OR SERVICE PROCEDURES. IF YOU SERVICE THIS 

UNIT, YOU ASSUME RESPONSIBILITY FOR ANY INJURY OR 

PROPERTY DAMAGE WHICH MAY RESULT.  IN ADDITION, IN 

JURISDICTIONS THAT REQUIRE ONE OR MORE LICENSES 

TO SERVICE THE EQUIPMENT SPECIFIED IN THIS MANUAL, 

ONLY LICENSED PERSONNEL SHOULD SERVICE THE 

EQUIPMENT. IMPROPER INSTALLATION, ADJUSTMENT, 

SERVICING, MAINTENANCE OR REPAIR OF THE EQUIPMENT 

SPECIFIED IN THIS MANUAL, OR ATTEMPTING TO INSTALL, 

ADJUST, SERVICE OR REPAIR THE EQUIPMENT SPECIFIED 

IN THIS MANUAL WITHOUT PROPER TRAINING MAY RESULT 

IN PRODUCT DAMAGE, PROPERTY DAMAGE, PERSONAL 

INJURY OR DEATH.

WARNING

Summary of Contents for GPHM5 SEER2 M Series

Page 1: ...ot bypass safety devices Affix this manual and Users Information Manual adjacent to the unit Daikin Comfort Technologies Manufacturing L P 19001 Kermier Rd Waller TX 77484 www goodmanmfg com 2022 Daik...

Page 2: ...djustments 13 GPHM5 Thermostat Fan Only Mode 13 GPHM5 Humidity Control 13 SUPERHEAT AND SUBCOOLING 13 Refrigerant Charge Check 13 Checking Superheat 13 Checking Subcooling 14 Units with TXV Devices 14...

Page 3: ...mance and or hazardous conditions may result from the use of such non devices WARNING HIGH VOLTAGE Disconnect all power before servicing or installing this unit Multiple power sources may be present F...

Page 4: ...acilities and connections Location may be on any four sides of a home manufactured or modular to minimize noise Clearances and Accessibility The unit is designed to be located outside the building wit...

Page 5: ...fficient 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 contracto...

Page 6: ...CULATING AIR AND FILTERS Airflow Conversion Units can easily be converted from horizontal to down discharge air flow delivery See Figure 5A Horizontal Flow Duct Cover Installation and Figure 5B Downfl...

Page 7: ...OUND DUCT CONVERTER PANEL Manufactured Home Modification Kit Figure 6 It is strongly encouraged to use appropriately sized ducts based upon the CFM for your application unit s CFM If duct sizing throu...

Page 8: ...te It is necessary to bring in the power supply to the contactor as shown on the unit wiring diagram which is supplied with each unit The low voltage wiring must be connected between the unit control...

Page 9: ...mate 60 second delay 6 Slowly lower the cooling temperature until the unit starts The compressor blower and fan should now be operating Allow the unit to run 10 minutes make sure cool air is being sup...

Page 10: ...power to the compressor and outdoor fan motor 2 Crankcase Heater This item is ON whenever power is supplied to the unit and the crankcase heater thermostat is closed Crankcase heater thermostat close...

Page 11: ...Figure 10 For Heat Pump units the expansion devices are Thermal Expansion Devices TXV and perform the same function on the heating cycle as on the cooling cycle The TXVs also act as check valves to al...

Page 12: ...W2 C terminals on the board Should read 24 volts 8 If not as above replace control board 9 Set thermostat to off position and disconnect power Remove jumper from defrost thermostat and replace timer j...

Page 13: ...cooling and T3 is medium speed heating T4 is high speed cooling and T5 is high speed heating To adjust the blower speed move the yellow and or white wires to T4 and T5 HEATING COOLING Speed Tap Defini...

Page 14: ...eading 3 Check subcooling and superheat System should have a subcooling and superheat within the range listed on the Design Superheat and Subcooling table a If subcooling and superheat are low adjust...

Page 15: ...g 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...

Page 16: ...ve contains refrigerant gases at certain temperatures 2 The discharge line should be the same temperature after the valves discharge line 3 The true suction should be the same as the suction line afte...

Page 17: ...ce the compressor c Low voltage connection c At compressor terminals voltage must be within 10 of nameplate volts when unit is operating d Capacitor weak open or shorted d Check capacitor If defective...

Page 18: ...7 1346 1305 1247 Watts 286 297 307 317 328 339 350 359 CFM 1775 1718 1673 1643 1588 1532 1482 1431 Watts 416 424 430 454 458 466 478 488 CFM 1271 1231 1186 1140 1094 1041 986 915 Watts 169 181 190 201...

Page 19: ...38 143 CFM 1416 1377 1339 1294 1249 1198 1143 1085 Watts 267 277 288 296 302 311 318 325 CFM 1508 1466 1417 1380 1330 1282 1242 1199 Watts 406 412 418 435 437 434 455 465 CFM 1142 1092 1047 1009 965 9...

Page 20: ...34 51 47 SUPPLY 1 3 8 A RETURN POWER WIRE ENTRANCE 4 1 8 2 1 8 6 16 16 5 B B CONTROL WIRE ENTRANCE CONDENSATE DRAIN CONNECTION 3 4 NPT FEMALE 18 7 8 3 8 2 34 51 47 SUPPLY A RETURN 16 5 B CONTROL WIRE...

Page 21: ...R CONDUCTOR ONLY 2 TO CHANGE EVAPORATOR MOTOR SPEED MOVE YELLOW AND WHITE LEADS FROM EM 2 AND 3 TO 4 AND 5 IF BOTH LEADS ARE ENERGIZED THE HIGHER SPEED SETTING IS USED 3 FOR 208 VOLT TRANSFORMER OPERA...

Page 22: ...inum Indoor Coil Cleaning Qualified Servicer Only This unit is equipped with an aluminum tube evaporator coil The safest way to clean the evaporator coil is to simply flush the coil with water This cl...

Page 23: ...Type NG Natural Gas LP Liquid Propane Residential Package Outdoor Section ELECTRICAL Supply Voltage Measure L1 and L2 Voltage L1 L2 Compressor Amps Condenser Fan Amps PRESSURES TEMPERATURES Suction Ci...

Page 24: ...itles you to additional warranty protection except that failure by California and Quebec residents to register their product does not diminish their warranty rights The duration of warranty coverages...

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