RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION.

These installation instructions cover the outdoor installation ofsingle package heating and cooling units. See the SpecificationSheet applicable to your model for information regardingaccessories.*NOTE: Please contact your distributor or our website for theapplicable Specification Sheet referred to in this manual.

INSTALLATION INSTRUCTIONS

GPH16 “M” SERIES WITH R-410A

SELF CONTAINED PACKAGE HEAT PUMP UNITS

ATTENTION INSTALLING PERSONNEL:Prior to installation, thoroughly familiarize yourself withthis Installation Manual. Observe all safety warnings. Dur-ing installation or repair, caution is to be observed.

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

ENERGY STAR®and the mark are registered trademarks owned by the U.S. Environmental ProtectionAgency. products are third-party certified by an EPA-recognized Certification Body. Products that earnthe prevent greenhouse gas emissions by meeting strict energy efficiency guidelines set by the U.S.Environmental Protection Agency.

ENERGY STAR ENERGY STARENERGY STAR

ENERGY STARENERGY STARENERGY STARENERGY STAR

“IMPORTANT – This product has been designed and manufactured to meet ENERGY STARcriteria for energy efficiency when matched with appropriate coil components. However,proper refrigerant charge and proper air flow are critical to achieve rated capacity andefficiency. Installation of this product should follow the manufacturer’s refrigerant chargingand air flow instructions. Failure to confirm proper charge and airflow may reduce energyefficiency and shorten equipment life.”

IOG-30188/2016

Goodman Company, L.P.151 San Felipe, Suite 500, Houston, TX 77056

www.goodmanmfg.com or www.amana-hac.com© 2015-2016 Goodman Company, L.P.

All information contained herein is subject to change without notice.

2

REPLACEMENT PARTS

ORDERING PARTS

When reporting shortages or damages, or ordering repairparts, give the complete unit model and serial numbers asstamped on the unit’s nameplate.

Replacement parts for this appliance are available throughyour contractor or local distributor. For the location of yournearest distributor, consult the white business pages, theyellow page section of the local telephone book or contact:

CONSUMER AFFAIRSGOODMAN MANUFACTURING COMPANY, L.P.

7401 SECURITY WAYHOUSTON, TEXAS 77040

(713) 254-4729

THIS PRODUCT CONTAINS OR PRODUCES A CHEMICAL OR 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

SAFETY INSTRUCTIONS

TO THE INSTALLER

Before installing this unit, please read this manual tofamiliarize yourself on the specific items which must beadhered to, including maximum external static pressure tounit, air temperature rise, minimum or maximum CFM andmotor speed connections.

Keep this literature in a safe place for future reference.

SHEET METAL PARTS, SCREWS, CLIPS AND SIMILAR ITEMS INHERENTLY HAVE SHARP EDGES, AND IT IS NECESSARY THAT THE INSTALLER AND SERVICE PERSONNEL EXERCISE CAUTION.

CAUTION

DO NOT CONNECT TO OR USE ANY DEVICE THAT IS NOT DESIGN CERTIFIED BY THE MANUFACTURER 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

THIS UNIT MUST NOT BE USED AS A “CONSTRUCTION HEATER” 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

HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.

WARNING

WARNINGTO PREVENT THE RISK OF PROPERTY DAMAGE, PERSONAL INJURY, OR DEATH,DO NOT STORE COMBUSTIBLE MATERIALS OR USE GASOLINE OR OTHERFLAMMABLE LIQUIDS OR VAPORS IN THE VICINITY OF THIS APPLIANCE.

Index

Replacement Parts ...................................................... 2

Safety Instructions ...................................................... 2

General Information ................................................... 3

Unit Location ............................................................... 4

Clearances ................................................................... 5

Roof Curb Post-Installation Checks .............................. 5

Roof Top Duct Connections .......................................... 5

Rigging Details ............................................................ 6

Electrical Wiring .......................................................... 7

Circulating Air and Filters ............................................ 8

Condensate Drain Connection ..................................... 9

Startup, Adjustments, and Checks ............................... 9

Air Flow Adjustments ................................................ 10

Heat Pump Operation ................................................ 11

Electrical Adjustments ............................................... 14

Maintenance ............................................................. 14

SERVICE..................................................................... 15

Appendix A Blower Performance Tables .................... 16

Direct Drive ............................................................... 16

Standard Down Shot and Horizontal .......................... 16

Standard GPH1660M41 Down Shot ........................... 17

Appendix C Unit Dimensions ..................................... 18

3

NATIONAL CODES

This product is designed and manufactured to permit installationin accordance with National Codes. It is the installer’s responsibil-ity to install the product in accordance with National Codes and/or prevailing local codes and regulations.

The heating and cooling capacities of the unit should be greaterthan or equal to the design heating and cooling loads of the areato be conditioned. The loads should be calculated by an approvedmethod or in accordance with ASHRAE Guide or Manual J - LoadCalculations published by the Air Conditioning Contractors ofAmerica.

Obtain from:

American National Standards Institute25 West 43rd Street, 4th Floor

New York, NY 10036

System design and installation should also, where applicable, fol-low information presented in accepted industry guides such as theASHRAE Handbooks. The manufacturer assumes no responsibilityfor equipment installed in violation of any code or regulation. Themechanical installation of the packaged roof top units consists ofmaking final connections between the unit and building services;supply and return duct connections; and drain connections (if re-quired). The internal systems of the unit are completely factory-installed and tested prior to shipment.

Units are generally installed on a steel roof mounting curb assem-bly which has been shipped to the job site for installation on theroof structure prior to the arrival of the unit. The model numbershown on the unit’s identification plate identifies the various com-ponents of the unit such as refrigeration tonnage, heating inputand voltage.

Carefully inspect the unit for damage including damage to thecabinetry. Any bolts or screws which may have loosened in transitmust be re-tightened. In the event of damage, the receiver should:

1. Make notation on delivery receipt of any visible damageto shipment or container.

2. Notify carrier promptly and request an inspection.3. In case of concealed damage, carrier should be notified as

soon as possible-preferably within 5 days.4. File the claim with the following supporting documents:a. Original Bill of Lading, certified copy, or indemnity bond.b. Original paid freight bill or indemnity in lieu thereof.c. Original invoice or certified copy thereof, showing trade

and other discounts or reductions.d. Copy of the inspection report issued by carrier

representative at the time damage is reported to thecarrier. The carrier is responsible for making promptinspection of damage and for a thorough investigation ofeach claim. The distributor or manufacturer will notaccept claims from dealers for transportation damage.

NOTE: When inspecting the unit for transportation damage,remove all packaging materials. Recycle or dispose of the packagingmaterial according to local codes.

GENERAL INFORMATION

ONLY PERSONNEL THAT HAVE BEEN TRAINED TO INSTALL, ADJUST, SERVICE OR REPAIR (HERINAFTER, “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 LICESNSED PERSONNEL SHOULD SERVICE THE EQUIPMENT. IMPROPER INSTALLATION, ADJUSTMENT, SERVICING OR REPAIR OF THE EQUIPMENT SPECIFIED IN THIS MANUAL WITHOUT PROPER TRAINING MAY RESULT IN PRODUCT DAMAGE, PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.

WARNING

TO PREVENT PROPERTY DAMAGE PERSONAL INJURY OR DEATH, DUE TO FIRE, EXPLOSIONS, SMOKE, SOOT, CONDENSATION, ELECTRIC SHOCK OR CARBON MONOXIDE, THIS UNIT MUST BE PROPERLY INSTALLED, REPAIRED, OPERATED, AND MAINTAINED.

WARNING

This unit is approved for outdoor installation ONLY. Rated per-formance is achieved after 72 hours of operation. Rated perfor-mance is delivered at the specified airflow. See product specifi-cation sheet for residential package. Specification sheets can befound at www.goodmanmfg.com for Goodman brand products.Within the website, please select the package products menu andthen select the submenu for the type of product to be installed,such as air conditioners or heat pumps, to access a list of productpages that each contain links to that model’s specification sheet.

To assure that your unit operates safely and efficiently, it must beinstalled, operated, and maintained in accordance with these in-stallation and operating instructions, all local building codes andordinances.

EPA Regulations

IMPORTANT: THE UNITED STATES ENVIRONMENTAL PROTECTION AGENCY (EPA)HAS ISSUED VARIOUS REGULATIONS REGARDING THE INTRODUCTION AND DISPOSALOF REFRIGERANTS IN THIS UNIT. FAILURE TO FOLLOW THESE REGULATIONS MAY HARMTHE ENVIRONMENT AND CAN LEAD TO THE IMPOSITION OF SUBSTANTIAL FINES.BECAUSE REGULATIONS MAY VARY DUE TO PASSAGE OF NEW LAWS, WE SUGGEST ACERTIFIED TECHNICIAN PERFORM ANY WORK DONE ON THIS UNIT. SHOULD YOUHAVE ANY QUESTIONS PLEASE CONTACT THE LOCAL OFFICE OF THE EPA.

TO AVOID PROPERTY DAMAGE, PERSONAL INJURY OR DEATH, DO NOT USE THIS UNIT IF ANY PART HAS BEEN UNDER WATER. IMMEDIATELY CALL A QUALIFIED SERVICE TECHNICIAN TO INSPECT THE FURNACE AND TO REPLACE ANY PART OF THE CONTROL SYSTEM AND ANY GAS CONTROL HAVING BEEN UNDER WATER.

WARNING

4

PRE-INSTALLATION CHECKS

Carefully read all instructions for the installation prior to installingunit. Ensure each step or procedure is understood and any specialconsiderations are taken into account before starting installation.Assemble all tools, hardware and supplies needed to complete theinstallation. Some items may need to be purchased locally.

UNIT LOCATION

TO PREVENT POSSIBLE EQUIPMENT DAMAGE, PROPERTY DAMAGE, PERSONAL INJURY OR DEATH, THE FOLLOWING BULLET POINTS MUST BE OBSERVED WHEN INSTALLING THE UNIT.

WARNING

IMPORTANT NOTE: Remove wood shipping rails prior to installa-tion of the unit.

ALL INSTALLATIONS:

IMPORTANT NOTE: Unit should be energized 24 hours prior tocompressor start up to ensure crankcase heater has suffi-ciently warmed the compressors. Compressor damage mayoccur is this step is not followed.

NOTE: Appliance is shipped from factory for vertical ductapplication.Proper installation of the unit ensures trouble-free operation. Im-proper installation can result in problems ranging from noisyoperation to property or equipment damages, dangerous condi-tions that could result in injury or personal property damage. Givethis booklet to the user and explain it’s provisions. The user shouldretain these instructions for future reference.

• For proper operation and condensate drainage, the unitmust be mounted level.

• Do not locate the unit in an area where the outdoor airwill be frequently contaminated by compounds containingchlorine or fluorine. Common sources of such compoundsinclude swimming pool chemicals and chlorine bleaches,paint stripper, adhesives, paints, varnishes, sealers, waxes(which are not yet dried) and solvents used duringconstruction and remodeling. Various commercial andindustrial processes may also be sources of chlorine/fluorine compounds.

• To avoid possible illness or death of the building occupants,do NOT locate outside air intake device (economizer,manual fresh air intake, motorized fresh air intake) tooclose to an exhaust outlet, gas vent termination, orplumbing vent outlet. For specific distances required,consult local codes.

• Allow minimum clearances from the enclosure for fireprotection, proper operation, and service access (see UnitClearances). These clearances must be permanentlymaintained.

• When the unit is heating, the temperature of the returnair entering the unit must be a minimum of 55°F.

GROUND LEVEL INSTALLATIONS ONLY:• When the unit is installed on the ground adjacent to the

building, a level concrete (or equal) base is recommended.Prepare a base that is 3” larger than the package unitfootprint and a minimum of 3” thick.

• The base should also be located where no runoff of waterfrom higher ground can collect in the unit.

• Any slab used as a unit’s foundation should not adjoin thebuilding as it is possible that sound and vibration may betransmitted through the structure.

ROOF TOP INSTALLATIONS ONLY:• To avoid possible property damage or personal injury, the

roof must have sufficient structural strength to carry theweight of the unit(s) and snow or water loads as requiredby local codes. Consult a structural engineer to determinethe weight capabilities of the roof.

• The unit may be installed directly on wood floors or onClass A, Class B, or Class C roof covering material.

• To avoid possible personal injury, a safe, flat surface forservice personnel should be provided.

• Adequate clearances from the unit to any adjacent publicwalkways, adjacent buildings, building openings oropenable windows must be maintained in accordance withNational Codes.

UNIT PRECAUTIONS

• Do not stand or walk on the unit.• Do not drill holes anywhere in panels or in the base frame

of the unit (except where indicated). Unit access panelsprovide structural support.

• Do not remove any access panels until unit has beeninstalled on roof curb or field supplied structure.

• Do not roll unit across finished roof without prior approvalof owner or architect.

• Do not skid or slide on any surface as this may damageunit base. The unit must be stored on a flat, level surface.Protect the condenser coil because it is easily damaged.

ROOF CURB INSTALLATIONS ONLY:Curb installations must comply with local codes and should be donein accordance with the established guidelines of the National Roof-ing Contractors Association.

Proper unit installation requires that the roof curb be firmly andpermanently attached to the roof structure. Check for adequatefastening method prior to setting the unit on the curb.

Full perimeter roof curbs are available from the factory and areshipped unassembled. Field assembly, squaring, leveling andmounting on the roof structure are the responsibility of the in-stalling contractor. All required hardware necessary for the as-sembly of the sheet metal curb is included in the curb accessory.

TO PREVENT POSSIBLE EQUIPMENT DAMAGE, PROPERTY DAMAGE, PERSONAL INJURY OR DEATH, THE FOLLOWING BULLET POINTS MUST BE OBSERVED WHEN INSTALLING THE UNIT.

WARNING

5

• Sufficient structural support must be determined prior tolocating and mounting the curb and package unit.

• Ductwork must be constructed using industry guidelines.The duct work must be placed into the roof curb beforemounting the package unit. Our full perimeter curbsinclude duct connection frames to be assembled with thecurb. Cantilevered type curbs are not available from thefactory.

• Curb insulation, cant strips, flashing and general roofingmaterial are furnished by the contractor.

The curbs must be supported on parallel sides by roof members.The roof members must not penetrate supply and return ductopening areas as damage to the unit might occur.

NOTE: The unit and curb accessories are designed to allow verticalduct installation before unit placement. Duct installation after unitplacement is not recommended.

ALL CURBS LOOK SIMILAR. TO AVOID INCORRECT CURB POSITIONING, CHECK JOB PLANS CAREFULLY AND VERIFY MARKINGS ON CURB ASSEMBLY. INSTRUCTIONS MAY VARY IN CURB STYLES AND SUPERSEDES INFORMATION SHOWN.

CAUTION

See the manual shipped with the roof curb for assembly and in-stallation instructions.

CLEARANCES

24”*Min.

24”*Min.

36”Min.

UNIT CLEARANCES

*In situations that have multiple units, a 48” minimum clearance isrequired between the condenser coils.Adequate clearance around the unit should be kept for safety, ser-vice, maintenance, and proper unit operation. A total clearanceof 75” on the main control panel side of the unit is recommendedto facilitate possible fan shaft, coil, and electric heat. A clearanceof 48” is recommended on all other sides of the unit to facilitatepossible compressor removal, to allow service access and to in-sure proper ventilation and condenser airflow. The unit must notbe installed beneath any obstruction. The unit should be installedremote from all building exhausts to inhibit ingestion of exhaustair into the unit fresh air intake.

INSULATEDPANELS

ROOF CURB INSTALLATION

ROOF CURB POST-INSTALLATION CHECKS

After installation, check the top of the curb, duct connection frameand duct flanges to make sure gasket has been applied properly.Gasket should be firmly applied to the top of the curb perimeter,duct flanges and any exposed duct connection frame. If gasket isloose, re-apply using strong weather resistant adhesive.

PROTRUSION

Inspect curb to ensure that none of the utility services (electric)routed through the curb protrude above the curb.

IF PROTRUSIONS EXIST, DO NO ATTEMPT TO SET UNIT ON CURB.

CAUTION

ROOF TOP DUCT CONNECTIONS

Install all duct connections on the unit before placing the unit onrooftop.

HORIZONTAL DISCHARGE

Refer to IOD-7006 included in the literature pack for installing hori-zontal duct covers.

Flexible duct connectors between the unit and ducts are recom-mended. Insulate and weatherproof all external ductwork andjoints as required and in accordance with local codes.

6

RETURN

SUPPLY12”

17” 7 3/8”

11” 4 7/8””

25”

6 3/16”

REMOVE COVERS

HORIZONTAL DISCHARGE DUCT CONNECTIONS

RIGGING DETAILS

WARNING

TO PREVENT PROPERTY DAMAGE, THE UNIT SHOULD REMAIN IN AN UPRIGHTPOSITION DURING ALL RIGGING AND MOVING OPERATIONS. TO FACILITATELIFTING AND MOVING WHEN A CRANE IS USED, PLACE THE UNIT IN ANADEQUATE CABLE SLING.

IF UNITS ARE LIFTED TWO AT A TIME, THE FORK HOLES ON THE CONDENSER END OF THE UNIT MUST NOT BE USED. MINIMUM FORK LENGTH IS 42” TO PREVENT DAMAGE TO THE UNIT; HOWEVER, 48” IS RECOMMENDED.

CAUTION

Provisions for forks have been included in the unit base frame. Noother fork locations are approved.

WARNING

TO PREVENT POSSIBLE EQUIPMENT DAMAGE, PROPERTY DAMAGE, PERSONALINJURY OR DEATH, THE FOLLOWING BULLET POINTS MUST BE OBSERVEDWHEN INSTALLING THE UNIT.

• Unit must be lifted by the four lifting holes located at thebase frame corners.

• Lifting cables should be attached to the unit with shackles.• The distance between the crane hook and the top of the

unit must not be less than 60”.• Two spreader bars must span over the unit to prevent

damage to the cabinet by the lift cables. Spreader barsmust be of sufficient length so that cables do not come incontact with the unit during transport. Remove woodstruts mounted beneath unit base frame before settingunit on roof curb. These struts are intended to protectunit base frame from fork lift damage. Removal isaccomplished by extracting the sheet metal retainers andpulling the struts through the base of the unit. Refer torigging label on the unit.

Important: If using bottom discharge with roof curb, ductworkshould be attached to the curb prior to installing the unit. Ductworkdimensions are shown in Roof Curb Installation Instructions.

Refer to the Roof Curb Installation Instructions for proper curbinstallation. Curbing must be installed in compliance with the Na-tional Roofing Contractors Association Manual.

Lower unit carefully onto roof mounting curb. While rigging unit,center of gravity will cause condenser end to be lower than supplyair end.

To assist in determining rigging requirements, unit weights areshown as follows:

A

B

C

D

CGSUPPLY

RETURN

EVAPORATOR COILCONDENSER

COIL

COMPRESSOR

Y

X

CORNER & CENTER OF GRAVITY LOCATIONS

A B C D

GPH1660M41 34 28 645 620 141 193 121 165

Corner Weights ( lbs )Model X (in) Y (in)

Shipping Weight

(lbs)

Operating Weight

(lbs)

TO PREVENT SEVERE DAMAGE TO THE BOTTOM OF THE UNIT, DO NOT FORK LIFT UNIT AFTER WOOD STRUTS HAVE BEEN REMOVED.

CAUTION

Bring condenser end of unit into alignment with the curb. Withcondenser end of the unit resting on curb member and using curbas a fulcrum, lower opposite end of the unit until entire unit isseated on the curb. When a rectangular cantilever curb is used,care should be taken to center the unit. Check for proper align-ment and orientation of supply and return openings with duct.

7

RIGGING REMOVAL

TO PREVENT DAMAGE TO THE UNIT, DO NOT ALLOW CRANE HOOKS AND SPREADER BARS TO REST ON THE ROOF OF THE UNIT.

CAUTION

Remove spreader bars, lifting cables and other rigging equipment.

ELECTRICAL WIRING

HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.

WARNING

HIGH VOLTAGE! TO AVOID PERSONAL INJURY OR DEATH DUE TO ELECTRICAL SHOCK, DO NOT TAMPER WITH FACTORY WIRING. THE INTERNAL POWER AND CONTROL WIRING OF THESE UNITS ARE FACTORY-INSTALLED AND HAVE BEEN THOROUGHLY TESTED PRIOR TO SHIPMENT. CONTACT YOUR LOCAL REPRESENTATIVE IF ASSISTANCE IS REQUIRED.

WARNING

TO PREVENT DAMAGE TO THE WIRING, PROTECT WIRING FROM SHARP EDGES. FOLLOW NATIONAL ELECTRICAL CODE AND ALL LOCAL CODES AND ORDINANCES. DO NOT ROUTE WIRES THROUGH REMOVABLE ACCESS PANELS.

CAUTION

CONDUIT AND FITTINGS MUST BE WEATHER-TIGHT TO PREVENT WATER ENTRY INTO THE BUILDING.

CAUTION

For unit protection, use a fuse or HACR circuit breaker that is inexcess of the circuit ampacity, but less than or equal to the maxi-mum overcurrent protection device. DO NOT EXCEED THE MAXI-MUM OVERCURRENT DEVICE SIZE SHOWN ON UNIT DATA PLATE.

All line voltage connections must be made through weatherprooffittings. All exterior power supply and ground wiring must be inapproved weatherproof conduit.

The main power supply wiring to the unit and low voltage wiringto accessory controls must be done in accordance with these in-structions, the latest edition of the National Electrical Code (ANSI/NFPA 70), and all local codes and ordinances. All field wiring shallconform with the temperature limitations for Type T wire (63°F/35°C rise).

The unit is factory wired for the voltage shown on the unit’s dataplate. Refer to model nomenclature in Appendix B for voltage re-quirement for your unit.

NOTE: If supply voltage is 208V, lead on primary of transformermust be moved from the 230V to the 208V tap. Refer to wiringdiagram on unit for details.

Main power wiring should be sized for the minimum wire ampacityshown on the unit’s data plate. Size wires in accordance with theampacity tables in Article 310 of the National Electrical Code. Iflong wires are required, it may be necessary to increase the wiresize to prevent excessive voltage drop. Wires should be sized for amaximum of 3% voltage drop.

CAUTION

TO AVOID PROPERTY DAMAGE OR PERSONAL INJURY DUE TO FIRE, USEONLY COPPER CONDUCTORS.

LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION. VERIFY PROPER OPERATION AFTER SERVICING.

CAUTION

NOTE: A weather-tight disconnect switch, properly sized for theunit total load, must be field or factory installed. An external fieldsupplied disconnect may be mounted on the exterior panel.

Ensure the data plate is not covered by the field-supplieddisconnect switch.

• Some disconnect switches are not fused. Protect thepower leads at the point of distribution in accordance withthe unit’s data plate.

• The unit must be electrically grounded in accordance withlocal codes or, in the absence of local codes, with the latestedition of the National Electrical Code (ANSI-NFPA 70). Aground lug is provided for this purpose. Size groundingconductor in accordance with Table 250-95 of the NationalElectrical Code. Do not use the ground lug for connectinga neutral conductor.

• Remove plug in panel located at the condenser end ofunit and route conduit to control box. Remove plug incontrol box and connect power wiring to the contactorclosest to the entrance. If Single Point kit is used, refer toInstallation Instructions supplied with kit.

LOW VOLTAGEBLOCK

MAIN POWER

LOW VOLTAGEENTRANCE POWER THRU

THE CURB

CONTROL BOX

8

LOW VOLTAGE/THERMOSTAT CONNECTIONSNOTE: Some models may vary from illustration. Models with electric heat are equippedwith a power block for field connections.

GROUNDLUG

CONTROL BOX CONNECTIONS

FAILURE OF UNIT DUE TO OPERATION ON IMPROPER LINE VOLTAGE OR WITH EXCESSIVE PHASE UNBALANCE CONSTITUTES PRODUCT ABUSE AND WILL VOID YOUR WARRANTY AND MAY CAUSE SEVERE DAMAGE TO THE UNIT ELECTRICAL COMPONENTS.

WARNING

Areas Without Convenience Outlet

It is recommended that an independent 115V power source bebrought to the vicinity of the roof top unit for portable lights andtools used by the service mechanic.

NOTE: Refer to local codes for requirements. These outlets canalso be factory installed.

UNITS INSTALLED ON ROOF TOPS

Main power and low voltage wiring may enter the unit throughthe condenser end or through the roof curb. Install conduit con-nectors at the desired entrance locations. External connectors mustbe weatherproof. All holes in the unit base must be sealed (in-cluding those around conduit nuts) to prevent water leakage intobuilding. All required conduit and fittings are to be field supplied.

Supply voltage to roof top unit must not vary by more than 10% ofthe value indicated on the unit’s data plate. Phase voltage unbal-ance must not exceed 2%. Contact your local power company forcorrection of improper voltage or phase unbalance.

HIGH VOLTAGE ENTRANCE

LOW VOLTAGE ENTRANCE1:4

30 1/4”*

12 3/8”

(REMOVE PLUG)

* (6 Ton - 34 1/4”)

4 1/2”

47 1/2” 7 1/2”

POWER THRUTHE CURB

3.5 DIA.RETURN

SUPP

LY

ELECTRICAL ENTRANCE AND THRU CURB

LOW VOLTAGE CONTROL WIRING

1. A 24V thermostat must be installed for unit operation. Itmay be purchased with the unit or field -supplied.Thermostats may be programmable or electromechanicalas required.

2. Locate thermostat or remote sensor in the conditionedspace where it will sense average temperature. Do notlocate the device where it may be directly exposed tosupply air, sunlight or other sources of heat. Followinstallation instructions packaged with the thermostat.

3. Use #18 AWG wire for 24V control wiring runs notexceeding 75 feet. Use #16 AWG wire for 24V control wiringruns not exceeding 125 feet. Use #14 AWG wire for 24Vcontrol wiring runs not exceeding 200 feet. Low voltagewiring may be National Electrical Code (NEC) Class 2 wherepermitted by local codes.

4. Route thermostat wires from sub-base terminals to theunit. Control wiring should enter through the condenserpanel opening indicated in “Electrical Entrance” figure.Connect thermostat and any accessory wiring to lowvoltage terminal block TB1 in the main control box.

NOTE: Field-supplied conduit may need to be installed dependingon unit/curb configuration. Use #18 AWG solid conductor wirewhenever connecting thermostat wires to terminals on sub-base.DO NOT use larger than #18 AWG wire. A transition to #18 AWGwire may be required before entering thermostat sub-base.

NOTE: Refer to unit wiring diagrams for thermostat hookups.

CIRCULATING AIR AND FILTERS

DUCTWORK

The supply duct from the unit through a wall may be installed with-out clearance. However, minimum unit clearances must be main-tained (see “Clearances” section). The supply duct should be pro-vided with an access panel large enough to inspect the air cham-ber downstream of the heat exchanger. A cover should be tightlyattached to prevent air leaks.

Ductwork dimensions are shown in the roof curb installationmanual.

If desired, supply and return duct connections to the unit may bemade with flexible connections to reduce possible unit operatingsound transmission.

9

CONDENSATE DRAIN CONNECTION

CONDENSATE DRAIN CONNECTION

A 3/4” female NPT drain connection is supplied on the end of theunit and bottom of the drain pan for condensate piping. An exter-nal trap must be installed for proper condensate drainage.

DRAINCONNECTION

UNIT 2" MINIMUM

FLEXIBLETUBING-HOSEOR PIPE

3" MINIMUM

A POSITIVE LIQUIDSEAL IS REQUIRED

Drain Connection

Install condensate drain trap as shown. Use 3/4” drain line andfittings or larger. Do not operate without trap.

HORIZONTAL DRAIN

Drainage of condensate directly onto the roof may be acceptable;refer to local code. It is recommended that a small drip pad ofeither stone, mortar, wood or metal be provided to prevent anypossible damage to the roof.

CLEANING

Due to the fact that drain pans in any air conditioning unitwill have some moisture in them, algae and fungus willgrow due to airborne bacteria and spores. Periodic clean-ing is necessary to prevent this build-up from plugging thedrain.

STARTUP, ADJUSTMENTS, AND CHECKS

HIGH VOLTAGE!

OND THE FRAME OF THIS UNIT TO THE BUILDING ELECTRICAL GROUND BY USE OF THE GROUNDING TERMINAL PROVIDED OR OTHER ACCEPTABLE MEANS. DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT.

TO AVOID PERSONAL INJURY OR DEATH DUE TO ELECTRICAL SHOCK, B

WARNING

PRE-STARTUP INSTRUCTIONS

TO PREVENT PROPERTY DAMAGE OR PERSONAL INJURY, DO NOT START THE UNIT UNTIL ALL NECESSARY PRE-CHECKS AND TESTS HAVE BEEN PERFORMED.

CAUTION

Prior to the beginning of Startup, Adjustments, and Checks proce-dures, the following steps should be completed in the building.

MOVING MACHINERY HAZARD!TO PREVENT POSSIBLE PERSONAL INJURY OR DEATH, DISCONNECT POWER TO THE UNIT AND PADLOCK IN THE “OFF” POSITION BEFORE SERVICNG FANS.

WARNING

HEATING STARTUP

On new installations, or if a major component has been replaced,the operation of the unit must be checked.

Check unit operation as outlined in the following instructions. Ifany sparking, odors, or unusual sounds are encountered, shut offelectrical power and recheck for wiring errors, or obstructions inor near the blower motors. Duct covers must be removed beforeoperating unit.

The Startup, Adjustments, and Checks procedure provides a step-by-step sequence which, if followed, will assure the proper startupof the equipment in the minimum amount of time. Air balancingof duct system is not considered part of this procedure. However,it is an important phase of any air conditioning system startup andshould be performed upon completion of the Startup, Adjustments,and Checks procedure. The Startup, Adjustments, and Checks pro-cedure at outside ambients below 55°F should be limited to a readi-ness check of the refrigeration system with the required final checkand calibration left to be completed when the outside ambientrises above 55°F.

TEMPORARY HEATING OR COOLING

If the unit is to be used for temporary heating or cooling, a “Startup,Adjustments, and Checks” must first be performed in accordancewith this manual. Failure to comply with this requirement will voidthe warranty. After the machines are used for temporary heatingor cooling, inspect the coils, fans, and motors for unacceptablelevels of construction dust and dirt and install new filters.

CONTRACTOR RESPONSIBILITY

The installing contractor must be certain that:

• All supply and return air ductwork is in place, properlysealed, and corresponds with installation instructions.

• All thermostats are mounted and wired in accordancewith installation instructions.

• All electric power, all gas, hot water or steam lineconnections, and the condensate drain installation havebeen made to each unit on the job. These main supplylines must be functional and capable of operating all unitssimultaneously.

• All filters are in place.

ROOF CURB INSTALLATION CHECK

Inspect the roof curb for correct installation. The unit and curbassembly should be level. Inspect the flashing of the roof mount-ing curb to the roof, especially at the corners, for good workman-ship. Also check for leaks around gaskets. Note any deficiencies ina separate report and forward to the contractor.

10

OBSTRUCTIONS, FAN CLEARANCE AND WIRING

Remove any extraneous construction and shipping materials thatmay be found during this procedure. Rotate all fans manually tocheck for proper clearances and that they rotate freely. Check forbolts and screws that may have jarred loose during shipment tothe job site. Retighten if necessary. Re-tighten all electrical con-nections.

FIELD DUCT CONNECTIONS

Verify that all duct connections are tight and that there is no airbypass between supply and return.

FILTER SECTION CHECK

Remove filter section access panels and check that filters are prop-erly installed. Note airflow arrows on filter frames.

PRE-STARTUP PRECAUTIONS

It is important to your safety that the unit has been properlygrounded during installation. Check ground lug connection in maincontrol box for tightness prior to closing circuit breaker or discon-nect switch. Verify that supply voltage on line side of disconnectagrees with voltage on unit identification plate and is within theutilization voltage range as indicated in Appendix B Electrical Data.

System Voltage - That nominal voltage value assigned to a circuitor system for the purpose of designating its voltage class.

Nameplate Voltage - That voltage assigned to a piece of equip-ment for the purpose of designating its voltage class and for thepurpose of defining the minimum and maximum voltage at whichthe equipment will operate.

Utilization Voltage - The voltage of the line terminals of the equip-ment at which the equipment must give fully satisfactory perfor-mance. Once it is established that supply voltage will be main-tained within the utilization range under all system conditions,check and calculate if an unbalanced condition exists betweenphases.

AIR FLOW ADJUSTMENTS

REFRIGERATION SYSTEM CHECKS

Ensure the hold-down bolts on the compressor are secure and havenot vibrated loose during shipment. Check that vibration grom-mets have been installed. Visually check all piping and clamps. Theentire refrigeration system has been factory charged and tested,making it unnecessary to field charge. Factory charges are shownon the unit nameplate.

START-UP PROCEDURE AND CHECKLIST

Begin with power turned off at all disconnects.

AIR CONDITIONING START-UP PROCEDURE

1. Turn thermostat system switch to “Cool,” and fan switchto “Auto” and turn temperature setting as high as it willgo.

2. Inspect all registers and set them to the normal openposition.

3. Turn on the electrical supply at the disconnect.

4. Turn the fan switch to the “ON” position. The blowershould operate after a 7 second delay.

5. Turn the fan switch to “Auto” position. The blower shouldstop after a 65 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 isbeing supplied by the unit.

7. Turn the temperature setting to the highest position,stopping the unit. The indoor blower will continue to runfor 65 seconds.

8. Turn the thermostat system switch to “OFF” anddisconnect all power when servicing the unit.

HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.

WARNING

HEAT PUMP START-UP PROCEDURE

9. Check the cooling mode for the heat pump in the samemanner as above. The reversing valve is energized whenthe thermostat is placed in the cooling position. A clickingsound should be noticeable from the reversing valve. Bylowering the temperature setting to call for cooling, thecontractor is energized. The compressor, blower and fanshould then be running. After the cooling mode is checkedout, turn the thermostat system switch to “OFF”.

10. Turn the thermostat system switch to “HEAT” and fanswitch to “AUTO”.

11. Slowly raise the heating temperature setting. When theheating first stage makes contact, stop raising thetemperature setting.. The compressor, blower and fanshould now be running with the reversing valve in the de-energized (heating) position. After giving the unit time tosettle out, make sure the unit is supplying heated air.

12. If the outdoor ambient is above 80°F, the unit may trip onits high pressure cut out when on heating. The compressorshould stop. The heating cycle must be thoroughlychecked, so postpone the test to another day whenconditions are more suitable but-DO NOT FAIL TO TEST.If the outdoor ambient is low and the unit operatesproperly on the heating cycle, you may check the pressurecutout operation by blocking off the indoor return air untilthe unit trips.

13. If unit operates properly in the heating cycle, raise thetemperature setting until the heating second stage makescontact. Supplemental resistance heat, if installed shouldnow come on. Make sure it operates properly.NOTE: If outdoor thermostats are installed the outdoorambient must be below the set point of these thermostatsfor the heaters to operate. It may be necessary to jumperthese thermostats to check heater operation if outdoorambient is mild.

11

14. For thermostats with emergency heat switch, return tostep 11. The emergency heat switch is located at thebottom of the thermostat. Move the switch to emergencyheat. The heat pump will stop, the blower will continue torun, all heaters will come on and the thermostatemergency heat light will come on.

15. If checking the unit in the wintertime, when the outdoorcoil is cold enough to actuate the defrost control, observeat least one defrost cycle to make sure the unit defrostscompletely.

FINAL SYSTEM CHECKS

16. Check to see if all supply and return air grilles are adjustedand the air distribution system is balanced for the bestcompromise between heating and cooling.

17. Check for air leaks in the ductwork. See Sections on AirFlow Adjustments.

18. Make sure the unit is free of “rattles”, and the tubing inthe unit is free from excessive vibration. Also make suretubes or lines are not rubbing against each other or sheetmetal surfaces or edges. If so, correct the trouble.

19. Set the thermostat at the appropriate setting for coolingand heating or automatic changeover for normal use.

20. Be sure the Owner is instructed on the unit operation, filter,servicing, correct thermostat operation, etc.

REFRIGERATION PERFORMANCE CHECK

Check that compressor RLA corresponds to values shown in Ap-pendix B. RLA draw can be much lower than values listed at lowload conditions and low ambient condensing temperatures. Val-ues in Appendix B can slightly exceed at high load conditions andhigh ambient condensing temperatures.

HEAT PUMP OPERATION

COOLING CYCLE

When the heat pump is in the cooling cycle, it operates exactlyas a Air Conditioner unit.HEATING CYCLE

The heat pump operates in the heating cycle by redirectingrefrigerant flow through the refrigerant circuit external to thecompressor. This is accomplished with the reversing valve.Hot discharge vapor from the compressor is directed to theindoor coil (evaporator on the cooling cycle) where the heatis removed, and the vapor condenses to liquid. It then goesthrough the expansion device to the outdoor coil (condenseron the cooling cycle) where the liquid is evaporated, and thevapor goes to the compressor.When the solenoid valve coil is operated either from heatingto cooling or vice versa, the piston in the reversing valve tothe low pressure (high pressure) reverse positions in thereversing valve.The following figures show a schematic of a heat pump onthe cooling cycle and the heating cycle. In addition to areversing valve, a heat pump is equipped with an expansiondevice and check valve for the indoor coil, and similarequipment for the outdoor coil. It is also provided with adefrost control system.The expansion devices are flowrator distributors and perform

the same function on the heating cycle as on the coolingcycle. The flowrator distributors also act as check valves toallow for the reverse of refrigerant flow.When the heat pump is on the heating cycle, the outdoor coilis functioning as an evaporator. The temperature of therefrigerant in the outdoor coil must be below the temperatureof the outdoor air in order to extract heat from the air. Thus,the greater the difference in the outdoor temperature andthe outdoor coil temperature, the greater the heating capacityof the heat pump. This phenomenon is a characteristic of aheat pump. It is a good practice to provide supplementaryheat for all heat pump installations in areas where thetemperature drops below 45°F. It is also a good practice toprovide sufficient supplementary heat to handle the entireheating requirement should there be a component failure ofthe heat pump, such as a compressor, or refrigerant leak, etc.Since the temperature of the refrigerant in the outdoor coilon the heating cycle is generally below freezing point, frostforms on the surfaces of the outdoor coil under certainweather conditions of temperature and relative humidity.Therefore, it is necessary to reverse the flow of the refrigerantto provide hot gas in the outdoor coil to melt the frostaccumulation. This is accomplished by reversing the heatpump to the cooling cycle. At the same time, the outdoor fanstops to hasten the temperature rise of the outdoor coil andlessen the time required for defrosting. The indoor blowercontinues to run and the supplementary heaters areenergized.

12

DEFROST CONTROL

During operation the power to the circuit board is controlled by atemperature sensor, which is clamped to a feeder tube enteringthe outdoor coil. Defrost timing periods of 30,60 and 90 minutesmay be selected by connecting the circuit board jumper to 30, 60and 90 respectively. Accumulation of time for the timing periodselected starts when the sensor closes (approximately 31° F), andwhen the wall thermostat calls for heat. At the end of the timingperiod, the unit’s defrost cycle will be initiated provided the sen-sor remains closed. When the sensor opens (approximately 75° F),the defrost cycle is terminated and the timing period is reset. Ifthe defrost cycle is not terminated due to the sensor tempera-ture, a ten minute override interrupts the unit’s defrost period.

SUGGESTED FIELD TESTING/TROUBLE SHOOTING

1. Run unit in the heating mode (room thermostat calling forheat).2. Check unit for proper charge. NOTE: Bands of frost on thecondenser coil indicate low refrigerant charge.3. Shut off power to unit.4. Disconnect outdoor fan by removing the outdoor fan motorwire from “DF2” on defrost control.5. Restart unit and allow frost to accumulate.6. After a few minutes of operation, the unit’s defrostthermostat should close. To verify this, check for 24 voltsbetween “DFT” and “C” on board. If the temperature atthe thermostat is less than 28°F and the thermostat isopen, replace the unit’s defrost thermostat, as it isdefective.7. When the unit’s defrost thermostat has closed, short thetest pins on the defrost board until the reversing valveshifts, indicating defrost. This should take up to 22seconds depending on what timing period the control isset on. After defrost initiation, the short must instantlybe removed or the unit’s defrost period will only last 3seconds.8. The control is shipped from the factory with the compressordelay option selected. This will de-energize thecompressor contactor for 30 seconds on defrost initiationand defrost termination. If the jumper is set to Normal,the compressor will continue to run during defrostinitiation and defrost termination. The control will alsoignore the low pressure switch connected to R-PS1 andPS2 for 5 minutes upon defrost initiation and 5 minutesafter defrost termination.9. After the unit’s defrost thermostat has terminated, checkthe defrost thermostat for 24 volts between “DFT” and “C”.The reading should indicate 0 volts (open sensor).10. Shut off power to unit.11. Replace outdoor fan motor lead to terminal “DF2” ondefrost board and turn on power.

AIR FLOW MEASUREMENT AND ADJUSTMENTPlease review the Duct Work section before proceeding withthe airflow measurements and adjustments in this section.

Unit blower curves (see Specification Sheets) are based onexternal static pressure (ESP per in/W.C.). The duct openingson the unit are considered internal static pressure. As longas ESP is maintained, the unit will deliver the proper air up tothe maximum static pressure listed for the CFM required bythe application (i.e. home, building, etc.)In general, 400 CFM per ton of cooling capacity is a rule ofthumb. Some applications depending on the sensible andlatent capacity requirements may need only 350 CFM or up to425 CFM per ton. Check condition space load requirements(from load calculations) and equipment expanded ratingsdata to match CFM and capacity.After unit is set and duct work completed, verify the ESP witha 1-inch inclined manometer with pilot tubes or a Magnahelicgauge and confirm CFM to blower curves in the SpecificationSheets.NOTE: Never run CFM below 350 CFM per ton, evaporatorfreezing or poor unit performance is possible.

AIR FLOW ADJUSTMENTS FOR INDOOR BLOWER MOTOR

EEM Motor

Adjust the CFM by changing the 24V low voltage lead at the speedterminal block on the motor. (T1-Low Speed, T2 and T3-MediumSpeed, T4 and T5-High Speed).

NOTE: Factory set T1 (G, fan), T2 (cool/Hi cool), T3 (W2 electricheat), T4 and T5 reserved for high static (cool/Hi cool) and W2.Low cool Y1 will run at G speed.

See Appendix for Blower performance tables.

SUPERHEAT CAN BE DETERMINED AS FOLLOWS:1. Read suction pressure. Determine Saturated Suction

Temperature from tables or pressure gauge saturatedtemperature scale (R-410A).

2. Read suction line temperature.3. Use the following formula:

SUPERHEAT = SUCTION LINE TEMP - SAT. SUCTION TEMP

EXPANSION VALVE (TXV) SYSTEM

Two Speed Application (GPH16**M)

Run the unit on high stage cooling for 10 minutes untilrefrigerant pressures stabilize. Follow the guidelines andmethods below to check unit operation and ensure that therefrigerant charge is within limits. Charge the unit on highstage.1. Purge gauge lines. Connect service gauge manifold to

access fittings. Run system at least 10 minutes to allowpressure to stabilize.

2. Temporarily install thermometer on liquid (small) line nearliquid line access fitting with adequate contact and insulatefor best possible reading.

3. Check subcooling and superheat. Two stage systems runningon high stage with TXV application should have asubcooling and superheat within the range listed on thechart.

a. If subcooling and superheat are low, adjust TXV

13

superheat, then check subcooling.NOTE: To adjust superheat, turn the valve stem clockwiseto increase and counter clockwise to decrease.

b. If subcooling is low and superheat is high, add charge toraise subcooling then check superheat.

c. If subcooling and superheat are high, adjust TXV valvesuperheat, then check subcooling.

d. If subcooling is high and superheat is low, adjust TXV valvesuperheat and remove charge to lower the subcooling.

NOTE: Do NOT adjust the charge based on suction pressure unlessthere is a gross undercharge.

4. Disconnect manifold set, installation is complete.

Refrigerant Charge Check (Units with Fixed Orifice Devices)

After completing airflow measurements and adjustments theunit’s refrigerant charge must be checked. All package unitswith fixed orifice devices are charged using the super heatmethod at the compressor suction line.

Model # Superheat °F Subcooling °FGPH1660M41 14 + 2 11 + 2

GPH16**MDesign superheat @ 95 °F outdoor ambient temperature

High Stage

After superheat is adjusted it is recommended to check unitsub-cooling at the condenser coil liquid line out. For chargeadjustments, see superheat and subcooling charts shown foreach model.

SYSTEM CHARGING HEATING MODE

The proper method of charging a heat pump in the heat modeis by weighing the charge according to the total charge listedon the rating plate.Measure the hot gas discharge at the compressor to ensureproper TXV setting. To ensure optimum system performancein heat mode, the TXV may require adjustment.1. Allow the system to operate for at least 20 minutes.2. Attach and insulate an electronic thermometer to the hot

gas discharge line mid-way between the compressor andthe reversing valve.NOTE: The thermometer must be well insulated to preventambient influences.

3. Allow the compressor to operate for about 10 additionalminutes and measure the hot gas discharge temperature.

4. Using an additional electronic thermometer, measure theambient temperature.

5. Adjust the TXV until the hot gas temperature equals 100°F+ ambient temperature (+ or - 3°F). Close TXV to increasethe temperature.

NOTE: When adjusting the TXV, allow the compressor to operatefor about 10 minutes before taking readings. Do not adjust TXVmore than 1/4 of a turn between readings.

ELECTRICAL ADJUSTMENTS

This series of electric cooling and, heat pump packageequipment is designed to accept a field installed electric heatkit. The unit is equipped to easily install the HKP or HKR SeriesElectric Heat Kit. Full Installation Instructions are included inthis kit. Please use this document for guidance in fieldequipping the package unit with electric heat.Choose the heat kit that fits the application for the specificinstallation. Permanently mark the unit’s nameplate with themodel being installed. High and low voltage connections aredetailed in the heat kit instructions.Indoor Blower motor speed tap selection may need to bemodified to accommodate normal continuous operation toprevent a nuisance trip. See following tables.

M o d e l 1 0 1 5 2 0G P H 1 6 * * M X X X

E l e c t r i c H e a t k W

MAINTENANCE

The Self Contained Package Air Conditioner and Heat Pumpshould operate for many years without excessive service callsif the unit is installed properly. However it is recommendedthat the homeowner inspect the unit before a seasonal startup. The coils should be free of debris so adequate air flow isachieved. The return and supply registers should be free ofany obstructions. The filters should be cleaned or replaced.These few steps will help to keep the product up time to amaximum. The Troubleshooting Chart (see Appendix) shouldhelp in identifying problems if the unit does not operateproperly.

Refer to Blower Performance section in the Appendix - Higher air flowlowers temperature rise.

Lower air flow raises temperature rise.

SERVICE

THE FOLLOWING INFORMATION IS FOR USE BY QUALIFIEDSERVICE 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 func-tioning as a condenser. The return air filter must always be clean,and sufficient air volume must pass through the indoor coil to pre-vent excessive discharge pressure, and high pressure cut out.

14

OUTSIDE AIR INTO RETURN DUCT

Do not introduce cold outside air into the return duct of a heatpump installation. Do not allow air entering the indoor coil todrop below 65°F. Air below this temperature will cause low dis-charge pressure, thus low suction pressure, and excessive defrostcycling resulting in low heating output. It may also cause falsedefrosting.

UNDERCHARGE

An undercharged heat pump on the heating cycle will cause lowdischarge pressure resulting in low suction pressure and frost ac-cumulation on the outdoor coil.

POOR “TERMINATING” SENSOR CONTACT

The unit’s defrost terminating sensor must make good thermalcontact with the outdoor coil tubing. Poor contact may not termi-nate the unit’s defrost cycle quickly enough to prevent the unitfrom cutting out on high discharge pressure.

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 solenoidcover in place with a screwdriver. If the nut magneticallyholds the screwdriver, the solenoid is energized and theunit is in the cooling cycle.

2. No voltage at unit’s solenoid - Check unit voltage. If novoltage, check wiring circuit.

3. Valve will not shift:a. Undercharged - check for leaks;b. Valve Body Damaged - Replace valve;c. Unit Properly Charged - If it is on the heating cycle, raise

the discharge pressure by restricting air flow through theindoor coil. If the valve does not shift, tap it lightly onboth ends with a screwdriver handle. DO NOT TAP THEVALVE BODY. If the unit is on the cooling cycle, raise thedischarge pressure by restricting air flow through theoutdoor coil. If the valve does not shift after the aboveattempts, cut the unit off and wait until the dischargeand suction pressure equalize, and repeat above steps. Ifthe valve does not shift, replace it.

LIQUID PRESSURESATURATED LIQUID TEMPERATURE ºF

PSIG R-410A 200 70

210 73220 76225 78235 80245 83255 85265 88275 90285 92295 95305 97325 101355 108375 112405 118

415 119425 121435 123445 125475 130500 134525 138550 142575 145600 149625 152

SATURATED LIQUID PRESSURE TEMPERATURE CHART

SUCTION PRESSURESATURATED SUCTION

TEMPERATURE ºF

PSIG R-410A

50 1

52 354 456 658 760 862 1064 1166 1368 1470 1572 1674 1776 1978 2080 21

85 2490 2695 29100 31110 36120 41130 45140 49150 53160 56170 60

SATURATED SUCTION PRESSURE TEMPERATURE CHART

15

THIS PAGE INTENTIONALLY LEFT BLANK

16

APPENDIX A BLOWER PERFORMANCE TABLESDIRECT DRIVE

STANDARD GPH1660M41 DOWN SHOT

SPEEDTAP

EXTERNAL STATIC PRESSURE (ESP)

in w.c.

STANDARDCFM

AMPS WATTS RPM

0.10 1334 1.65 180 6270.20 1286 1.75 192 6650.30 1212 1.83 202 7150.40 1144 1.94 216 7590.50 1077 1.99 222 7920.60 1039 2.10 238 8300.70 953 2.17 248 8740.80 904 2.27 258 9130.90 825 2.30 266 9400.10 1512 2.12 240 6820.20 1469 2.24 254 7200.30 1397 2.31 264 7590.40 1333 2.44 282 8030.50 1285 2.54 296 8360.60 1221 2.59 304 8740.70 1173 2.72 322 9130.80 1118 2.77 328 9460.90 1049 2.90 344 9840.10 2053 4.27 540 8690.20 2014 4.39 558 8960.30 1999 4.60 576 9290.40 1947 4.68 588 9570.50 1897 4.79 608 9890.60 1857 4.87 620 10120.70 1763 4.99 640 10500.80 1741 5.06 650 10720.90 1669 5.19 668 11050.10 2137 4.95 634 9130.20 2093 5.07 652 9400.30 2095 5.19 670 9620.40 2026 5.28 682 9900.50 1980 5.40 698 10180.60 1961 5.49 720 10390.70 1914 5.58 732 10720.80 1845 5.70 742 11000.90 1766 5.69 740 11270.10 2299 5.70 742 9420.20 2233 5.80 748 9690.30 2217 5.90 768 9900.40 2157 6.07 786 10180.50 2131 6.12 804 10450.60 2060 6.21 816 10730.70 2015 6.30 820 10950.80 1940 6.27 816 11110.90 1862 6.13 790 1128

NOTES:

T5

Tables represent dry coil without filter, to compensate for filter add 0.08" to measured E.S.P. SCFM correction for wet coil = 4 %. 5 Ton models are shipped from the factory with speed tap set on T4.

T1

T2

T3

T4

17

APPENDIX A BLOWER PERFORMANCE TABLESDIRECT DRIVE

STANDARD GPH1660M41 HORIZONTAL

SPEEDTAP

EXTERNAL STATIC PRESSURE (ESP)

in w.c.

STANDARDCFM

AMPS WATTS RPM

0.10 1355 1.57 174 5990.20 1281 1.66 182 6510.30 1235 1.76 196 6930.40 1168 1.81 202 7260.50 1118 1.94 218 7750.60 1049 2.03 232 8190.70 982 2.10 240 8580.80 922 2.14 246 8850.90 871 2.25 260 9270.10 1544 2.04 234 6600.20 1490 2.17 250 7040.30 1427 2.25 260 7420.40 1370 2.35 276 7810.50 1319 2.42 282 8090.60 1274 2.52 296 8490.70 1210 2.62 316 8910.80 1137 2.73 326 9350.90 1106 2.77 336 9570.10 2099 4.13 516 8250.20 2068 4.25 536 8520.30 2029 4.37 552 8850.40 1971 4.48 568 9130.50 1911 4.61 586 9500.60 1876 4.73 604 9730.70 1821 4.86 622 10120.80 1792 4.91 630 10280.90 1740 5.03 648 10670.10 2233 4.76 608 8630.20 2168 4.91 628 8960.30 2125 5.02 640 9240.40 2070 5.14 660 9510.50 2050 5.27 678 9790.60 1980 5.41 696 10120.70 1954 5.47 704 10340.80 1893 5.60 724 10670.90 1852 5.70 736 10890.10 2322 5.44 710 9040.20 2294 5.55 726 9340.30 2254 5.68 742 9580.40 2201 5.80 766 9900.50 2147 5.93 782 10170.60 2117 6.01 788 10390.70 2081 6.12 808 10600.80 2017 6.22 822 10940.90 1932 6.10 804 1111

NOTES:

5 Ton models are shipped from the factory with speed tap set on T4.

T5

/

Tables represent dry coil without filter, to compensate for filter add 0.08" to measured E.S.P. SCFM correction for wet coil = 4 %.

T1

T2

T3

T4

18

APPENDIX C UNIT DIMENSIONS

HORIZONTAL DISCHARGEVERTICAL DISCHARGE

RETURN

SUPPLY12”

17” 7 3/8”

11”

25”

6 1/4”

4 7/8”

DRAINTHRU CURBLOCATION

EMBOSS FORTHRU THE BASE UTILITIES

BOTTOM VIEW OF UNIT

8 3/16”

5 7/8”

19 7/16”

27 3/8”

47 1/2”

4 1/2”

7 1/2”

SUPPLY

RETURN

73 1/4”

47 1/2”

74 1/16”

48 3/16”

A

Model Size Dim A5 Ton 42-13/16''

19

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WIRING DIAGRAMS GPH1660M41

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

RD

Y

PU PURP LE

CONTRO L

H

C

RD

0-RV

YL

6

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R-PS1

TB14

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RD

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DC

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SEENOTE 7

YL/PK YELLOW W ITH P INK S TRIP

BR BROW N

SEE NOTE 2

BL/PK B LUE W ITH PIN K STRIP

R

YL

GND

CONTACTORCOMPRESSOR CO NTA CTOR RELAYCRANKCASE HEATERCRANKCASE HEATER SW ITCHCONDENSER MOTORCOMPRESSORDEFROST CONTROLDEFROST THER MOSTATECONOMIZEREVA PORA TOR MOTOREQUIPMENT GROUNDHIGH PR ESSURE SW ITCHHIGH VOLTAGE DEFRO ST RELAYLOW PRESSURE SW ITCHLOW VO LTAGE DEFRO ST RELAYLOW VO LTAGE JUNCT ION BOXFEMALE PLUG / CONNE CTORREVERSING VALV E CO ILRUN CAPAC ITOR FORCOMPRESSOR AN D FANTERM INAL BLOCK (24V SIGN AL)TRANSFORMER

G

BL/PK

YL

1

BK

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RVC

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COMP

SEE UNIT RATING PLATE FOR TYPE AN D SIZE

BL

D2

T

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T2

BK

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GR

5

YL

3

RCCF

CCCRCHCHSCMCOM PDCDFTECO NEMGN DHPSHVDRLPSLVDRLVJ BPLFRVCRCCF

TB1TR

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BK

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208

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208-240

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SEENOTE 6

PLF1

RD RED

4

DFT

BR

BK

BK

CNT

TR

0

H

R

O

C

2

2

C

3

SUPP LY VO LTAG E

Y1

BL

SEENOTE 7

BO X

GR

GR GREEN

RD

GR

GR

240

C/

T3

24V

OR

BL

CC R

C

6

WH

PLF 2

C

EM

WH

SE ENO TE 5

REPLACEJUMPER WITHSMOKE/FIREDETECTOR

5

RD

T2

LPS

PLF 1

R

BK

C

2

R-P

S1 S

N

HPS

BL

LINE VOLTAGE

1

2

C

NOTE S:

1. REPLACEMENT W IRE MU ST BE SAM E SIZE ANDTYP E INSU LATIO N AS ORIGINAL (AT LEAST105°C) USE COPPER CONDUC TOR ONLY.

2. TO CHANG E EVAPO RATOR MOTO R SPEED MO VEW HITE AND YELL OW LEADS FROM "3" AND "4" TO"4" AN D "5". IF BOTH LEADS ARE ENERGIZED , THEHIGHER SPEED SET TING IS USE D.

3. FOR 208 VOLT TRANSFORMER OPER ATION MO VEBLACK W IRE FROM TERM INAL 3 TO TER MINAL 2ON TRANSFORMER.

4. USE CO PPER CONDUCTORS ONLY

++ USE N.E.C. CLAS S 2 W IRE5. ECO NOM IZER PL UG LOCATED IN THE RETURN

AIR COMPARTMENT. REMOVE MALE PLUG AND ARRACH FE MALE PLUG TO EC ONOMI ZER ACCE SSOR Y.

6. CRANKCASE HEA TER AN D CRANKCASE HEA TERSW ITCH FACTORY EQU IPPED W HEN REQ UIRED.

7. DOUB LE POLE CO NTA CTOR SH OW N. SING LE POLECONTACTOR COULD BE FA CTORY EQUIPPED AS ANALTERNATE CONF IGURA TION.

/

PLF 2

YL/PK

COMP

3

24V

SEENOTE 6

YL/PK

WH

C-RV

R

208-240/1/60 0140G04447-B

DC

1

BK

RD

R-D

FT

BL

RD

BK

BK

Y2HVDR

W 2

6

HVDRC

RD

CNTOF OVER CURREN T PROTECTION

208-240V

208-240/1/60

PS2

PU

DF1

T

W IRE CODE

BL

DF2

SEE NO TE 4

BL/PKEM

1

4

C

SEE NOTE 3

PLF1

YL

2

BR

BR

M

CHS

T2

C

OR

DFT 5

RVC

W H

DFTBK

PU

W H

W

NO TE 5

NO TE 6

9

78

RD

8 79

RO G CY1W1W2 Y2S2S1 RO G CY1W1

THERMOSTAT

W2S2S1

S2S1RD

BRPK

EQU IPMEN T GROUND

FIE LD GROUND

FIELD SPL ICE

SW ITCH (TE MP)

IG NITER

SW ITCH (PRES S.)

OVERCURRENTPRO T. DEVICE

JUNCT ION

TER MINAL

INTERNA L TOINTEGRA TED CONTROL

PLU G CONNEC TION

++

++

OP TIONA LLO W VOLTAGE

SEE NOTE 2

1 2

43 CSR YL

BR

BR

PU

YL BR

PU

RDRD

PUBK

BK

PU

YL

PU

BL

SOLYL

BL

BL

RD

1 2

43 CSR

BLBL

BL

BL

YL

PU

BLRD

PK

SOL

GR

PU

PU

PU

W H

COMPONENT LEGEND

20

9/2014

21

Start-up Checklist

L1 - L2 L2 - L3 L3 - L1

L1 L2 L3

L1 L2 L3

L1 L2 L3

Fan 1 Fan 2 Fan 3

IN. W.C.

IN. W.C.

IN. W.C.

RPM

DB WB

DB WB

DB WB

DB

IN. W.C.

IN. W.C. (Low Fire) IN. W.C. (High Fire)

PSIG °F

°F

PSIG °F

°F

PSIG °F

°F

PSIG °F

°F

PSIG °F

PSIG °F

PSIG °F

PSIG °F

BLOWER EXTERNAL STATIC PRESSURE

Return Air Static Pressure

Supply Air Static Pressure

Supply Voltage

Circuit 1 Compressor Amps

Circuit 2 Compressor Amps

Blower Amps

Condenser Fan Amps

ELECTRICAL

Total External Static Pressure

Blower Wheel RPM

TEMPERATURES

Outdoor Air Temperature

Return Air Temperature

Cooling Supply Air Temperature

Discharge Circuit 1

Heating Supply Air Temperature

PRESSURES

Gas Inlet Pressure

Gas Manifold Pressure

Suction Circuit 1

Suction Circuit 2

Discharge Circuit 2

Superheat (Orifice System)

Superheat (Orifice System)

Subcooling (TXV System)

Subcooling (TXV System)

Discharge Circuit 1

Discharge Circuit 2

(HEAT PUMP ONLY)

Suction Circuit 1

Suction Circuit 2

Start-UpAir Conditioning & Heating

22

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23

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24

Goodman Company, L.P.5151 San Felipe, Suite 500, Houston, TX 77056

www.amana-hac.com© 2015 - 2016 Goodman Company, L.P.

Quality Makes the Difference!All of our systems are designed and manufactured with the same high quality standards regardless of size or efficiency. Wehave designed these units to significantly reduce the most frequent causes of product failure. They are simple to service and

forgiving to operate. We use quality materials and components. Finally, every unit is run tested before it leaves the factory.That’s why we know. . .There’s No Better Quality.