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Installation Manual 10 SEER Heat Pump with R - 22 PH10 Sizes 048 & 060 3 - Phase NOTE : Read the entire instruction manual before starting the installation . SAFETY CONSIDERATIONS Improper installation , adjustment , alteration , service , maintenance , or use can cause explosion , fire , electrical shock or other conditions whichmay cause personal injury or property damage . Consult a qualified installer , service agency or your distributor or branch for information or assistance . The qualified installer or agency must use factory - authorized kits or accessories when modifying this product . Refer to the individual instructions packaged with the kits or accessories when installing . Follow all safety codes . Wear safety glasses and work gloves . Use quenching cloth for brazing operations . Have fire extinguisher available . Read these instructions thoroughly and follow all warnings or cautions attached to the unit . Consult local building codes and the National Electrical Code ( NEC ) for special installation requirements . . When you see this symbol on the unit or in instructions and manuals , be alert Recognize safety information . This is the safety - alert symbol to the potential for personal injury . Understand the signal words DANGER , WARNING , and CAUTION . These words are used with the safety - alert symbol . DANGER identifies the most serious hazards which will result in severe personal injury or death . WARNING signifies hazards which could result in personal injury or death . CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage . NOTE is used to highlight suggestions which will result in enhanced installation , reliability , or operation . WARNING : Electrical Shock Hazard Failure to follw this warning could result in death or personal injury . Before installing or servicing system , always turn off main power to system . There may be more than 1 disconnect switch . Lock out and tag switch with a suitable warning label . Turn off accessory heater power if applicable . Electrical shock can cause personal injury or death INSTALLATION PROCEDURE 1 — CHECK EQUIPMENT AND JOB SITE A . Unpack Unit Move to final location . Remove carton taking care not to damage unit . B . Inspect Equipment File claim with shipping company , prior to installation , if shipment is damaged or incomplete . Locate unit rating plate on unit service panel . It contains information needed to properly install unit . Check rating plate to be sure unit matches job specifications . C . Installation Recommendations NOTE : In some cases noise in living area has been traced to gas pulsations from improper installation of equipment . 1 . Locate unit away from windows . 2 . Ensure that vapor and liquid tube diameters are appropriate to capacity of unit . ( See Table 1 . ) 3 . Run refrigerant tubes as directly as possible by avoiding unnecessary turns and bends . 4 . Leave some slack between structure and unit to absorb vibration . 5 . When passing refrigerant tubes through wall , seal opening with RTV or other pliable silicon - based caulk . ( See Fig . 1 . ) 6 . Avoid direct tubing contact with water pipes , ductwork , floor joists , wall studs , floors , and walls . 7 . Do not suspend refrigerant tubing from joists and studs with a rigid wire or strap which comes in direct contact with tubing . ( See Fig . 1 . ) 8 . Ensure that tubing insulation is pliable and it completely surrounds vapor tube . 9 . When necessary , use hanger straps which are 1 - in . wide and conform to shape of tubing insulation . ( See Fig . 1 . ) 10 . Isolate hanger straps from insulation by using metal sleeves bent to conform to shape of insulation . Catalog No . IM - PH10 - 07 Cancels : IM - PH10 - 06 Printed in U.S.A . 3 - 06
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NOTE : AVOID CONTACT BETWEEN TUBING AND STRUCTURE JOIST HANGER STRAP INDOOR WALL ( AROUND VAPOR OUTDOOR WALL LINE ONLY ) CAULK VAPOR LINE INSULATION INSULATION 1 ″ LIQUID VAPOR LINE THROUGH THE WALL SUSPENSION MIN LINE LIQUID LINE A01443 Fig . 1 — Piping Installation Table 1 — Refrigerant Connections and Recommended Liquid and Vapor Tube Diameters ( In . ) 1 UNIT SIZE LIQUID RATED VAPOR ( UP TO 80 FT ) PH10 Connect Diameter Tube Diameter Connect Diameter Tube Diameter 048 3 / 8 3 / 8 7 / 8 7 / 8 060 3 / 8 3 / 8 7 / 8 1 - 1 / 8 NOTE:ube 1 . T diameters are for lengths up to 80 ft horizontal or 20 ft vertical differential . For tubing lengths greater than 80 ft , consult the Residential Split System Long - Line Application Guideline for Air Conditioners and Heat Pumps using R - 22 . Maximum liquid line is 3 / 8 in . , including long line applications . 2 . Do not apply capillary - tube indoor coils with these units . PROCEDURE 2 — INSTALL ON A SOLID , LEVEL MOUNTING PAD If conditions or local codes require unit be attached to pad , tie - down bolts should be used and fastened through knockouts provided in unit base pan . Refer to unit mounting pattern in Fig . 2 to determine base pan size and knockout hole location . For minimum pad dimensions see Fig . 2 . When installing , allow sufficient space for airflow clearance , wiring , refrigerant piping , and service . Allow 30 - in . clearance to service end of unit and 48 in . above unit . For proper airflow , a 6 - in . clearance on 1 side of unit and 12 in . on all remaining sides must be maintained . Maintain a distance of 24 in . between units . Discharge air must be unobstructed and must not recirculate . Position so water , snow or ice from roof or eaves cannot fall directly on unit . On rooftop applications , locate unit at least 6 in . above roof surface . Place unit above a load - bearing wall and isolate unit and tubing set from structure . Arrange supporting members to adequately support unit and minimize transmission of vibration to building . Consult local codes governing rooftop applications . The minimum outdoor operating ambient in cooling mode is 55 ° F ( 12.8 ° C ) , and the maximum outdoor operating ambient in cooling mode is 125 ° F ( 51.6 ° C ) . The maximum outdoor operating ambient in heating mode is 66 ° F ( 18.8 ° C ) . PROCEDURE 3 — ELEVATE UNIT CAUTION : Unit Operation Hazard Failure to follow this caution may result in unit damage or improper operation . Do not allow water and / or ice to build up in basepan . In areas where prolonged freezing temperatures are encountered , elevate unit per local climate and code requirements to provide clearance above estimated snowfall level and ensure adequate drainage of unit . PROCEDURE 4 — REPLACE CHECK - FLO - RATER ® PISTON OR TXV If unit is being installed with piston , check indoor coil piston to see if it matches required piston shown on unit rating plate . If it does not match , replace indoor coil piston with piston shipped with outdoor unit . The indoor piston shipped with outdoor unit is correct for any approved indoor coil combination . NOTE : If a TXV is to be installed on indoor unit , remove indoor coil piston . Refer to Spec Sheet for the correct TXV kit to be installed . Follow the instructions in the kit for proper installation . Check outdoor unit piston as follows : 1 . Remove cap and retainer holding outdoor piston in liquid service valve . 2 . Remove outdoor piston and check size with matching number on unit rating plate . 3 . After verifying size , reinstall piston and retainer . If O - ring is damaged during removal , install new retainer . Install TXV kit to indoor coil as follows : 1 . Install suction tube adapter . 2 . Install liquid flare - to - sweat adapter . 3 . Connect external equalizer tube to fitting on suction tube adapter . 4 . Position sensing bulb on horizontal portion of suction tube adapter . Secure using supplied hardware . — 2 —
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C 3 � ″ D . ( 9.53 ) TIEDOWN 8 KNOCKOUTS ( 2 ) PLACES A B A94199 TIEDOWN KNOCKOUT LOCATIONS UNIT SIZE Unit Base A B C 048 , 060 30 X 30 6 - 1 / 2 23 - 1 / 2 20 Fig . 2 — Unit Dimensions in Inches 5 . Insulate bulb after installation . 6 . Leak check all connections . PROCEDURE 5 — CHECK DEFROST THERMOSTAT Check defrost thermostat to ensure it is properly located and securely attached . There is a liquid header with a brass distributor and feeder tube going into outdoor coil . At the end of 1 of the feeder tubes , there is a 3 / 8 - in . O.D . stub tube approximately 2 in . long . ( See Fig . 3 . ) The defrost thermostat should be located on stub tube . Note that there is only 1 stub tube used with liquid header , and on most units it is the bottom circuit . PROCEDURE 6 — MAKE PIPING CONNECTIONS WARNING : Personal Injury and Envirnomental Hazard Failure to follow this warning could result in personal injury , death and / or fines . Relieve pressure and recover all refrigerant before system repair or final unit disposal . Use all service ports and open all flow - control devices , including solenoid valves . injury or death . Use all service ports and open all flow - control devices , including solenoid valves . CAUTION : Unit Damage Hazard Failure to follow this caution may result in equipment damage or improper operation . DO NOT BURY MORE THAN 36 IN . OF REFRIGERANT TUBING IN GROUND . If ANY refrigerant tubing is buried , provide a 6 - in . vertical rise at service valve . Refrigerant tubing lengths up to 36 in . may be buried without further special consideration . Outdoor units may be connected to indoor sections using accessory tubing package or field - supplied refrigerant grade tubing of correct size and condition . For tubing requirements beyond 80 ft , consult Residential Split - System Long - Line Application Guideline which is available at your local distributor . Refer to Table 1 for refrigerant tube dimensions and connections . FEEDER TUBE STUB TUBE DEFROSTOSTAT THERM A97517 Fig . 3 — Defrost Thermostat Location — 3 —
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PISTON BODY PISTON PISTON RETAINER STRAINER SWEAT / FLARE ADAPTER A97512 Fig . 4 — Service Valve with Sweat Adapter Tube If refrigerant tubes or indoor coil is exposed to atmospheric conditions for longer than 5 minutes , it must be evacuated to 500 microns to eliminate contamination and moisture in system A . Outdoor Units Connected to Factory - Approved Indoor Outdoor unit contains correct system refrigerant charge for operation with indoor unit of same size when connected by 15 ft of field - supplied or factory accessory tubing . Check refrigerant charge for maximum efficiency . ( See Procedure 10 – Check Charge . ) B . Refrigerant Tubing Connect tubing to fittings on outdoor unit vapor and liquid service valves . C . Sweat Connection CAUTION : Unit Component Damage Hazard Failure to follow this caution may result in unit component damage . While brazing , service valves must be wrapped in a heat sink material , such as a wet cloth . Use refrigerant grade tubing . Service valves are closed from factory and ready for brazing . Remove plastic retainer holding outdoor piston in liquid service valve and connect sweat / flare adapter provided to valve . ( See Fig . 4 . ) After wrapping the service valve with a wet cloth , braze sweat connections using industry accepted methods and materials . Consult local code requirements . Refrigerant tubing and indoor coil are now ready for leak testing . This check should include all field and factory joints . PROCEDURE 7 — MAKE ELECTRICAL CONNECTIONS WARNING : Electrical Shock Hazard Failure to follw this warning could result in personal injury or death . Do not supply power to unit with compressor terminal box cover removed . Be sure field wiring complies with local and national fire , safety , and electrical codes , and voltage to system is within limits shown on unit rating plate . Contact local power company for correction of improper voltage . See unit rating plate for recommended circuit protection device . NOTE : Operation of unit on improper line voltage constitutes abuse and could affect unit reliability . See unit rating plate . Do not install unit in system where voltage or phase imbalance ( 3 phase ) may fluctuate above or below permissible limits . NOTE : Use copper wire only between disconnect switch and unit . NOTE : Install branch circuit disconnect per NEC of adequate size to handle unit starting current . Locate disconnect within sight from and readily accessible from unit , per Section 440 - 14 of NEC . A . Route Ground and Power Wires Remove access panel to gain access to unit wiring . Extend wires from disconnect through power wiring hole provided and into unit control box . WARNING : Electrical Shock Hazard Failure to follow this warning could result in personal injury and / or death . The unit cabinet must have an uninterrupted or unbroken ground . The ground may consist of electrical wire or metal conduit when installed in accordance with existing electrical codes . B . Connect Ground and Power Wires Connect ground wire to ground connection in control box for safety . Connect power wiring to contactor as shown in Fig . 5 . — 4 —
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DISCONNECTAND / OR PER N.E.C . LOCAL CODES CONTACTOR FIELD POWER WIRING BLUE 3 PHASE ONLY FIELD GROUND WIRING GROUND LUG A94025 Fig . 5 — Line Power Connections C . Connect Control Wiring Route 24v control wires through control wiring grommet and connect leads to control wiring . ( See Fig . 7 and 8 . ) Use No . 18 AWG color - coded , insulated ( 95 ° F / 35 ° C minimum ) wires . If thermostat is located more than 100 ft from unit ( as measured along control voltage wires ) , use No . 16 AWG color - coded wires to avoid excessive voltage drop . Use furnace - or fan - coil transformer as 24v ( 40va minimum ) supply for system or use accessory transformer . NOTE : Use of available 24v accessories may exceed the minimum 40va power requirement . Determine total transformer loading and increase the transformer capacity or split the load with an accessory transformer as required . NOTE : The defrost timer is factory set for 90 - minute cycles . The timer can be field set for 30 - and 60 - minute cycles depending on defrost conditions in your geographical location . PROCEDURE 8 — INSTALL ELECTRICAL ACCESSORIES Refer to individual instructions packaged with kits or accessories when installing . PROCEDURE 9 — START - UP CAUTION : Unit Operation and Safety Hazard Failure to follow this caution may result in personal injury , equipment damage , or improper operation . · Do not overcharge system with refrigerant . · Do not operate unit in a vacuum or at negative pressure . · Do not disable low - pressure switch . · In scroll compressor applications dome temperatures may be hot . 1 . If equipped with a crankcase heater , energize a minimum of 24 hr before starting unit . To energize heater only , set thermostat to OFF mode and close electrical disconnect to outdoor unit . A crankcase heater and liquid - line solenoid are required if refrigerant tubing is longer than 80 ft . CAUTION : Personal Safety Hazard Failure to follow this caution may result in personal injury . Wear safety glasses , protective clothing , and gloves when handling refrigerant and observe the following : · Front - seating service valves are equipped with Schrader valves . 2 . Fully open liquid and vapor service valves . 3 . Unit is shipped with valve stem ( s ) front seated , and caps installed . Replace stem caps after system is opened to refrigerant flow . Replace caps finger - tight and tighten additional 1 / 12 turn with wrench for front seating valves ( female hex stem ) . 4 . Close electrical disconnects to energize system . 5 . Set room thermostat at desired temperature . 6 . Set room thermostat at HEAT or COOL and fan to ON or AUTO mode , as desired . Operate unit for 15 minutes . Check system refrigerant charge . ( See Procedure 10 . ) 7 . Factory charge is shown on outdoor rating plate . Adjust charge in cooling mode by following procedure shown on charging table . Check charge in heating mode by following procedure shown on heating check chart . Both are located on outdoor unit . CAUTION : Environmental Hazard Failure to follow this caution may result in environmental damage and fines . Federal regulations require that you do not vent refrigerant into atmosphere . Recover during system repair or final unit disposal . — 5 —
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A00010 Fig . 6 — Phase Monitor Control Table 2 — Phase Monitor LED Indicators LED STATUS OFF No call for compressor operation FLASHING Reversed phase ON Normal CAUTION : Unit Operation Hazard Failure to follow this caution may result in equipment damage , or improper operation . • 3 – phase scroll compressors are rotation sensitive . Ensure that the compressor rotation is correct . • A flashing LED on phase monitor indicates reverse rotation . ( See Fig . 6 and Table 2 . ) • This will not allow contactor to be energized . • Disconnect power to unit and interchange 2 field wiring leads on unit contactor . A . SEQUENCE OF OPERATION With power supplied to indoor and outdoor units , transformer is energized . COOLING On a call for cooling , thermostat makes circuits R - O , R - Y , and R - G . Circuit R - O energizes reversing valve , switching it to cooling position . Three phase models with scroll compressors are equipped with a phase monitor to detect if the incoming power is correctly phased for compressor operation . ( See Fig . 6 and Table 2 . ) If the phasing is correct , circuit R - Y energizes contactor , starting outdoor fan motor and compressor circuit . R - G energizes indoor unit blower relay , starting indoor blower motor on high speed . NOTE : If the phasing is incorrect , the contactor will not be energized . To correct the phasing interchange any two of the three power connections on the field side . When thermostat is satisfied , contacts open , de - energizing the contactor and blower relay . Compressor and motors should stop . NOTE : If indoor unit is equipped with a time - delay relay circuit , the blower runs an additional 90 sec to increase system efficiency . HEATING On a call for heating , thermostat makes circuits R - Y and R - G . If phasing is correct , circuit R - Y energizes contactor , starting outdoor fan motor and compressor . Circuit R - G energizes indoor blower relay , starting blower motor on high speed . Should temperature continue to fall , R - W2 is made through second - stage room thermostat . Circuit R - W2 energizes a relay , bringing on first bank of supplemental electric heat . If outdoor temperature falls below setting of outdoor thermostat ( field - installed option ) , contacts close to complete circuit and bring on second bank of supplemental electric heat . When thermostat is satisfied , its contacts open , de - energizing contactor and relay . All heaters and motors should stop . DEFROST The defrost control is a time / temperature control which includes a field - selectable ( quick - connects located at board edge ) time period between defrost cycles ( 30 , 60 , or 90 minutes ) , factory set at 90 minutes . Defrost mode is identical to cooling mode except that outdoor fan motor stops and second - stage heat is turned on to continue warming conditioned space . First the defrost cycle timer starts when the contactor is energized and a 24 volt signal is present on the T1 terminal . Then the defrost cycle begins when the cycle times out ( 30 , 60 , 90 min ) and the defrost thermostat is closed . To initiate defrost , the defrost thermostat must be closed . This can be accomplished as follows : — 6 —
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HEATMP TYPICALIL PU HP THERMOSTAT FAN CO R R R 24 VAC HOT C C C 24 VAC COM * W2 W2 HEAT STAGE 2 W2 * E COOL / HEAT Y STAGE 1 Y * W3 G INDOOR FAN G O RVS COOLING O EMERGENCY E IF AVAILABLE * HEAT A02325 Fig . 7 — Wiring Layout 1 . Turn off power to outdoor unit . 2 . Disconnect outdoor fan motor lead from OF2 on control board . ( See Fig . 8 . ) Tape lead to prevent grounding . 3 . Restart unit in heating mode , allowing frost to accumulate on outdoor coil . 4 . After a few minutes in heating mode , liquid line temperature should drop below closing point of defrost thermostat ( approximately 30 ° F ) . 5 . Short between speed - up terminals with a flat - bladed screw - driver . ( See Fig . 8 . ) This reduces the timing sequence to 1 / 256th of original time . ( See Table 3 . ) 6 . When you hear reversing valve change position , remove screwdriver immediately ; otherwise , control will terminate normal 10 - minute defrost cycle in approximately 2 sec . NOTE : Length of defrost cycle is dependent on the length of time it takes to remove screwdriver from test pins after reversing valve has shifted . 7 . Unit will remain in defrost for remainder of defrost cycle time or until defrost thermostat reopens at approximately 80 ° F coil temperature of liquid line . 8 . Turn off power to outdoor unit and reconnect fan motor lead to OF2 on control board . ( See Fig . 8 . ) PROCEDURE 10 — CHECK CHARGE A . Cooling Only Procedure — Indoor unit equipped with piston , superheat method . Factory charge is shown on unit rating plate . To check charge in cooling mode , refer to Cooling Only Procedure on unit wiring and charging label . NOTE : If superheat - or subcooling charging conditions are not favorable , charge must be weighed in accordance with unit rating plate ± 0.6 oz / ft of 3 / 8 in . liquid line above or below 15 ft respectively . EXAMPLE : To calculate additional charge required for a 25 ft line set : 25 ft - 15 ft = 10 ft X 0.6 oz / ft = 6 oz of additional charge B . Cooling Only Procedure — Indoor unit equipped with TXV — Subcooling Method Factory charge and subcooling are shown on unit information plate . To check charge , follow the procedure below . NOTE : If subcooling charging conditions are not favorable , charge must be weighed in accordance with unit rating plate , ± 0.6 oz / ft of 3 / 8 in . liquid line above or below 15 ft , respectively . Favorable conditions fall within the ranges given on the charging chart on the outdoor unit plate . NOTE : In long - line applications ( linesets longer than 80 ft ) , see Residential Split System Long - Line Application Guideline for special charging requirements . EXAMPLE : To calculate additional charge required for a 25 ft line set : 25 ft - 15 ft = 10 ft X 0.6 oz / ft = 6 oz of additional charge . This system requires charging by the subcooling method . 1 . Operate unit a minimum of 10 minutes before checking charge . 2 . Measure liquid service valve pressure by attaching an accurate gauge to service port . 3 . Measure liquid line temperature by attaching an accurate thermistor type or electronic thermometer to liquid line near outdoor coil . 4 . Refer to unit rating plate for required subcooling temperature . 5 . Refer to Table 4 . Find the point where required subcooling temperature intersects measured liquid service valve pressure . 6 . To obtain required subcooling temperature at a specific liquid line pressure , add refrigerant if liquid line temperature is higher than indicated or reclaim refrigerant if temperature is lower . Allow a tolerance of ± 3 ° F . CAUTION : Unit Operation and Safety Hazard Failure to follow this caution may result in personal injury , equipment damage , or improper operation . · Do not overcharge system with refrigerant . · Do not operate unit in a vacuum or at negative pressure . · Do not disable low - pressure switch . · In scroll compressor applications dome temperatures may be hot . — 7 —
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R14 R13 H9C1 R6 ® O1 C US OF1 K1 R21 D13 C2 C10 C4 D4 OF2 5501A R7 R8 C19 C9 JW1 JW2 R9 A29 KCEBD430524 - 01A2 C1 1 U1 C17 D10 C5 R28 C13 D6 JW3 C7 D1 D2 R4 R26 C16 D3 U3 HK32EA001 R11 R1 R2 R3 R5 1 R20 P3 1 J2 DFT Y 1 W1 P2 30 60 90 T1 C C O J1 P1 1 1 SPEEDUP OR W2 Y C A02001 Rev . B Fig . 8 — Defrost Control Table 3 — Defrost Control Speed - Up Timing Sequence MINIMUM MAXIMUM SPEED - UP PARAMETER ( MINUTES ) ( MINUTES ) ( NORMINAL ) 30 - minute cycle 27 33 7 sec 60 - minute cycle 45 55 12 sec 90 - minute cycle 81 99 21 sec 10 - minute cycle 9 11 2 sec 5 minutes 4.5 5.5 1 sec Adjust charge in cooling mode by following procedure shown on superheat charging tables . Check charge in heating mode by following procedure shown on heating check chart , both located on unit . CAUTION : Environmental Hazard Failure to follow this caution may result in environmental damage and fines . Federal regulations require that you do not vent refrigerant to atmosphere . Recover during system repair or final unit disposal . C . Heating Check Chart Procedure To check system operation during heating cycle , refer to the Heating Check Chart on outdoor unit . This chart indicates whether a correct relationship exists between system operating pressure and air temperature entering indoor and outdoor units . If pressure and temperature do not match on chart , system refrigerant charge may not be correct . Do not use chart to adjust refrigerant charge . NOTE : When charging is necessary during heating season , charge must be weighed in accordance with unit rating plate ± 0.6 oz / ft of 3 / 8 - in . liquid line above or below 15 ft respectively . — 8 —
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EXAMPLE : To calculate additional charge required for a 25 - ft line set : 25 ft - 15 ft = 10 ft X 0.6 oz / ft = 6 oz of additional charge PROCEDURE 11 — CARE AND MAINTENANCE For continuing high performance , and to minimize possible equipment failure , it is essential that periodic maintenance be performed on this equipment . Consult your servicing contractor or Users Manual for proper frequency of maintenance . Frequency of maintenance may vary depending upon geographic areas , such as coastal applications . PROCEDURE 12 — LEAVE USER’S MANUAL WITH HOMEOWNER Explain system operation and maintenance procedures outlined in User’s Manual . Table 4 — Required Subcooling Temperature ( ° F ) LIQUID PRESSURE AT REQUIRED SUBCOOLING TERMPERATURE ( ° F ) SERVICE VALVE ( PSIG ) 5 10 15 20 134 71 66 61 56 141 74 69 64 59 148 77 72 67 62 156 80 75 70 65 163 83 78 73 68 171 86 81 76 71 179 89 84 79 74 187 92 87 82 77 196 95 90 85 80 205 98 93 88 83 214 101 96 91 86 223 104 99 94 89 233 107 102 97 92 243 110 105 100 95 253 113 108 103 98 264 116 111 106 101 274 119 114 109 104 285 122 117 112 107 297 125 120 115 110 309 128 123 118 113 321 131 126 121 116 331 134 129 124 119 346 137 132 127 122 359 140 135 130 125 — 9 —
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© 2006 Payne Heating & Cooling 7310 W . Morris St . , Indianapolis , IN 46231 — 10 — Catalog No . IM - PH10 - 07