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Fujitsu FO2416RTJNAA, Installation Instructions Manual

The Fujitsu FO2416RTJNAA is a high-quality air conditioning unit that provides efficient and reliable cooling. Ensure a seamless installation with the comprehensive Installation Instructions Manual, available for free download on our website. Get the most out of your product by having the necessary manual at your fingertips from manualshive.com.

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9.0 DIAGNOSTICS & TROUBLESHOOTING

9.3 Electrical Checks Flowchart

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Diagnostics

Summary of Contents for FO2416RTJNAA

Page 1: ...STALLATION ADJUSTMENT AND OPERATION OF THIS UNIT READ THESE INSTRUCTIONS THOROUGHLY BEFORE ATTEMPTING INSTALLATION OR OPERATION FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN IMPROPER INSTALLATION ADJUSTMENT SERVICE OR MAINTENANCE POSSIBLY RESULTING IN FIRE ELECTRICAL SHOCK PROPERTY DAMAGE PERSONAL INJURY OR DEATH INSTALLATION INSTRUCTIONS 16 SEER TWO STAGE NON COMMUNICATING HEAT PUMP WARNING ...

Page 2: ...ĞĂŬ dĞƐƟŶŐ ϮϮ ϰ ϵ ŽŶƚƌŽů tŝƌŝŶŐ 23 ϰ ϭϬ dLJƉŝĐĂů ŽŶƚƌŽů tŝƌŝŶŐ ŽŶŶĞĐƟŽŶƐ Ϯϯ ϰ ϭϭ WŽǁĞƌ tŝƌŝŶŐ Ϯϱ ϰ ϭϮ ƌŽƵŶĚŝŶŐ Ϯϱ 5 0 SYSTEMSTART UPANDREFRIGERANTCHARGING 26 29 ϱ ϭ LJƐƚĞŵ ƚĂƌƚͲhƉ KǀĞƌǀŝĞǁ Ϯϲ ϱ Ϯ ŶŝƟĂů WŽǁĞƌ hƉ Ϯϲ ϱ ϯ sĞƌŝĨLJŝŶŐ ŶĚŽŽƌ ŝƌͲ ůŽǁ Ϯϲ ϱ ϰ ZĞĨƌŝŐĞƌĂŶƚ ŚĂƌŐŝŶŐ Ϯϳ ϱ ϰ ϭ DĞĂƐƵƌĞŵĞŶƚ ĞǀŝĐĞ Ğƚ hƉ Ϯϳ ϱ ϰ Ϯ WƌĞůŝŵŝŶĂƌLJ ŚĂƌŐŝŶŐ ďLJ tĞŝŐŚƚ Ϯϳ ϱ ϰ ϯ WƌĞůŝŵŝŶĂƌLJ ŚĂƌŐŝŶŐ ďLJ WƌĞƐƐƵƌĞ Ϯϴ ϱ ϰ ϰ ŝŶĂů ŚĂƌŐŝŶ...

Page 3: ...uch loss or injury resulting from the use of such unauthorized components accessories or devices CAUTIONS R 410A systems operate at approximately 60 higher pressures 1 6 times than R 22 systems Do not use R 22 service equipment or components on R 410A HTXLSPHQW 8VH DSSURSULDWH FDUH ZKHQ XVLQJ WKLV refrigerant Failure to exercise care may result in equipment damage or personal injury 2QO PDWFK WKLV...

Page 4: ...National Fire Protection VVRFLDWLRQ QF DWWHU PDUFK 3DUN 4XLQF 0 02269 These publications are ANSI NFPA No 70 Latest Edition National Electrical Code NFPA90A Installation of Air Conditioning and 9HQWLODWLQJ 6 VWHPV 1 3 QVWDOODWLRQ RI ZDUP DLU KHDWLQJ DQG DLU conditioning systems QVWDOO WKH LQGRRU XQLW LQ VXFK D ZD DV WR DOORZ QHFHVVDU DFFHVV WR WKH FRLO ILOWHU UDFN DQG EORZHU control compartment 2 ...

Page 5: ... Claims for damage either apparent or FRQFHDOHG VKRXOG EH ILOHG LPPHGLDWHO ZLWK WKH VKLSSLQJ FRPSDQ KHFN PRGHO QXPEHU HOHFWULFDO characteristics and accessories to determine if they DUH FRUUHFW KHFN V VWHP FRPSRQHQWV LQGRRU FRLO RXWGRRU XQLW DLU KDQGOHU IXUQDFH HWF WR PDNH VXUH they are properly matched 2 6 Efficiency Testing Notice For purposes of verifying or testing efficiency ratings the test ...

Page 6: ... 1 6 5 6 021 5 6 5 6 567 6 1 6 5 6 6 21 6 1 6 5 6 3 3 21752 6 1 121 20081 7 1 92 7 3 352 8 7 7 25 5 7 3803 7 3 7 7 2 67 3 7 78 78 78 78 5 1 2 8 768 2 9 3 1 Model Number Nomenclature 3 2 Available Models Specifications FO2416RTJNAA FO3616RTJNAA FO4816RTJNAA FO6016RTJNAA ...

Page 7: ...6016RTJNAA 242 6861 208 230 1 60 28 8 28 8 152 9 1 4 1 4 38 38 60 60 45 45 550 3792 250 1723 COPELAND 55 23156 34 9198 None Compressor Fan Motor Compressor Circuit Breaker Size Fuse or HACR PSIG kPa Design Pressure DIMENSIONALS 2 STAGE 16 SEER HEAT PUMP 24 36 48 60 31 787 35 889 45 1143 33 75 857 33 75 857 35 75 908 33 75 857 33 75 857 35 75 908 Height H inches mm Length L inches mm Width W inches...

Page 8: ...e a mixture of R 410A and air can become combustible R 410A and air should never be mixed in tanks or supply lines or be allowed to accumulate in storage tanks Leak checking should never be done with a mixture of R 410A and air HDN FKHFNLQJ FDQ EH SHUIRUPHG VDIHO ZLWK QLWURJHQ RU D PL WXUH RI R 410A and nitrogen 4 1 3 Quick Reference Guide for R 410A R 410A refrigerant operates at approximately 60...

Page 9: ...tions DQG UHTXLUHPHQWV ZLOO WDNH SUHFHGHQFH 5HIULJHUDQW SLSLQJ DQG ZLULQJ VKRXOG EH SURSHUO VL HG DQG NHSW DV VKRUW DV SRVVLEOH WR DYRLG capacity losses and increased operating costs RFDWH WKH XQLW ZKHUH ZDWHU UXQRII ZLOO QRW FUHDWH D SUREOHP ZLWK WKH HTXLSPHQW 3RVLWLRQ WKH XQLW DZD IURP WKH GULS HGJH RI WKH URRI ZKHQHYHU SRVVLEOH 8QLWV DUH ZHDWKHUL HG EXW FDQ EH DIIHFWHG E WKH IROORZLQJ Water pou...

Page 10: ...KHDW SXPS VKRXOG EH ORFDWHG DZD IURP WKH living sleeping and recreational spaces of the RZQHU DQG WKRVH VSDFHV RQ DGMRLQLQJ SURSHUW To prevent noise transmission the mounting pad for the outdoor unit should not be connected to the structure and should be located a sufficient GLVWDQFH DERYH JUDGH WR SUHYHQW JURXQG ZDWHU from entering the unit 4 0 INSTALLATION 4 3 1 Unit Mounting Methods The outdoor...

Page 11: ...Caribou 100 Grand Island 30 Fargo 34 Memphis 5 Madison 32 Wilmington 13 Portland 62 Lincoln 20 Williston 25 Nashville 8 Milwaukee 32 GEORGIA MARYLAND Norfolk 29 OHIO TEXAS WYOMING Athens 5 Baltimore 17 North Platte 15 Akron Canton 15 Abilene 6 Casper 10 Macon 8 MASSACHUSETTS Omaha 20 Cleveland 16 Amarillo 10 Cheyenne 15 IDAHO Boston 30 Scottsbluff 11 Columbus 10 Dallas 3 Lander 20 Boise 6 Nantucke...

Page 12: ...rigerant tubing is measured in terms of actual length and equivalent length Actual length is used for refrigerant charge applications Equivalent OHQJWK WDNHV LQWR DFFRXQW SUHVVXUH ORVVHV IURP WXE LQJ OHQJWK ÀWWLQJV YHUWLFDO VHSDUDWLRQ DFFHVVRULHV DQG ÀOWHU GULHUV 7KH WDEOH EHORZ UHIHUHQFHV GLIIHU ent commonly used equivalent lengths 7KH SXUSRVH RI WKH OLTXLG OLQH LV WR WUDQVSRUW ZDUP VXE FRROHG OL...

Page 13: ...ϵ ϱϬ Ϭ ϵϵ ϱϬ Ϭ ϵϴ ϱϬ Ϭ ϵϴ ϱϬ Ϭ ϵϳ ϯ ϴΗ ϯ ϰΗ Ϭ Ϯϱ Ϭ ϵϵ ϱϬ Ϭ ϵϳ ϱϬ Ϭ ϵϱ ϱϬ Ϭ ϵϯ ϱϬ Ϭ ϵϭ EZ ϭ ϮΗ ϯ ϰΗ Ϭ Ϯϱ Ϭ ϵϵ ϱϬ Ϭ ϵϳ ϱϬ Ϭ ϵϱ ϱϬ Ϭ ϵϯ ϱϬ Ϭ ϵϭ EZ ϯ ϴΗ ϳ ϴΗ Ϭ Ϯϱ ϭ ϬϬ ϱϬ Ϭ ϵϵ ϱϬ Ϭ ϵϴ ϱϬ Ϭ ϵϴ ϱϬ Ϭ ϵϳ ϯϴ Ϭ ϵϲ ϭ ϮΗ ϳ ϴΗ Ϭ Ϯϱ ϭ ϬϬ ϱϬ Ϭ ϵϵ ϱϬ Ϭ ϵϴ ϱϬ Ϭ ϵϴ ϱϬ Ϭ ϵϳ ϱϬ Ϭ ϵϲ EŽƚĞƐ ϭͿ Ž ŶŽƚ ĞdžĐĞĞĚ ϭϱϬ Ō ůŝŶĞĂƌ ůŝŶĞ ůĞŶŐƚŚ ϮͿ Ž ŶŽƚ ĞdžĐĞĞĚ ϱϬ Ō ǀĞƌƟĐĂů ƐĞƉĂƌĂƟŽŶ ďĞƚǁĞĞŶ ŝŶĚŽŽƌ ĂŶĚ ŽƵƚĚŽŽƌ ƵŶŝƚƐ ϯͿ Ύ ϯ ϰΗ ǀĂƉŽƌ ů...

Page 14: ...Ğ ůĞǀĞů ĂƐ ŝŶĚŽŽƌ ƵŶŝƚ ƚŽ ĂƐƐƵƌĞ ƉƌŽƉĞƌ Žŝů ƌĞƚƵƌŶ ϰͿ ůǁĂLJƐ ƵƐĞ ƚŚĞ ƐŵĂůůĞƐƚ ůŝƋƵŝĚ ůŝŶĞ ĂůůŽǁĂďůĞ ƚŽ ŵŝŶŝŵŝnjĞ ƌĞĨƌŝŐĞƌĂŶƚ ĐŚĂƌŐĞ ϱͿ ƉƉůŝĐĂƟŽŶƐ ƐŚĂĚĞĚ ŝŶ ůŝŐŚƚ ŐƌĂLJ ŝŶĚŝĐĂƚĞ ĐĂƉĂĐŝƚLJ ŵƵůƟƉůŝĞƌƐ ďĞƚǁĞĞŶ Ϭ ϵϬ ĂŶĚ Ϭ ϵϲ ǁŚŝĐŚ ĂƌĞ ŶŽƚ ƌĞĐŽŵŵĞŶĚĞĚ ďƵƚ ĂƌĞ ĂůůŽǁĞĚ ϲͿ ƉƉůŝĐĂƟŽŶƐ ƐŚĂĚĞĚ ŝŶ ĚĂƌŬ ŐƌĂLJ ĂƌĞ ŶŽƚ ƌĞĐŽŵŵĞŶĚĞĚ ĚƵĞ ƚŽ ĞdžĐĞƐƐŝǀĞ ůŝƋƵŝĚ Žƌ ƐƵĐƟŽŶ ƉƌĞƐƐƵƌĞ ĚƌŽƉ ϳ Ϭ t Ϯ Ϭ dŽŶ Ύ EKd ϯ ϭϬ ϲ t ϯ dŽŶ ϭϰ ϭ ...

Page 15: ...culated through the V VWHP DORQJ ZLWK WKH UHIULJHUDQW EHIRUH LW UHWXUQV WR WKH FRPSUHVVRU FUDQNFDVH W LV FULWLFDO WR WKH OLIH RI the compressor for the oil to be able to return to the compressor to maintain an adequate level of oil in WKH FRPSUHVVRU FUDQNFDVH 2YHUVL HG YDSRU OLQHV result in inadequate refrigerant velocities to carry WKH RLO DORQJ ZLWK WKH UHIULJHUDQW DQG ZLOO FDXVH WKH RLO WR DFFX...

Page 16: ...4 5 7 Capacity Losses Long line lengths can result in a reduction in capacity due to vapor line pressure drop and heat gain or loss Refer to Table 2 for capacity loss multipliers for vari ous vapor line diameters and lengths Only use vapor lines listed in Table 2 to assure proper oil return This table does not account for any capacity loss due to heat gain or loss from the environment It is extrem...

Page 17: ...uid line passes through a very hot area where liquid refrigerant can be heated to form vapor insulating the liquid line is required Use clean dehydrated sealed refrigeration grade tubing OZD V NHHS WXELQJ VHDOHG XQWLO WXELQJ LV LQ SODFH and connections are to be made KLJK TXDOLW ELIORZ ILOWHU GULHU LV LQFOXGHG ZLWK DOO R 410A heat pump units and must be installed in the liquid line upon unit insta...

Page 18: ...PRGHOV KDYH IDFWRU installed CCH s Refer to tables in Section 4 5 5 6 Insulated liquid line in unconditioned space only Insulate vapor line full length 9DSRU OLQH VKRXOG VORSH WRZDUG WKH LQGRRU XQLW ROORZ WKH SURSHU OLQH VL LQJ PD LPXP OLQHDU and equivalent lengths charging requirements and oil level adjustments spelled out in this man ual 9HULI DW OHDVW OLTXLG VXE FRROLQJ DW the indoor unit prior...

Page 19: ...onditioned space only Insulate vapor line full length ROORZ WKH SURSHU OLQH VL LQJ PD LPXP OLQHDU and equivalent lengths charging requirements and oil level adjustments spelled out in this man ual 9HULI DW OHDVW OLTXLG VXE FRROLQJ DW the indoor unit prior to expansion device in the cooling mode 9HUWLFDO VHSDUDWLRQV JUHDWHU WKDW P FDQ H SHFW D ORZHU VXE FRROLQJ OHYHO Figure 4 67 4 5 Line Set Instal...

Page 20: ...f voltage consistently 200 vac at outdoor unit Insulated liquid line in unconditioned space only Insulate vapor line full length ROORZ WKH SURSHU OLQH VL LQJ PD LPXP OLQHDU DQG equivalent lengths charging requirements and oil level adjustments spelled out in this manual 9HULI DW OHDVW OLTXLG VXE FRROLQJ DW the outdoor unit service valve in the heating mode Tubing 168 7 48 LINE IN UNCONDITIONED SPA...

Page 21: ...OHDQ GU FORWK EHIRUH VROGHULQJ OHDQ out debris chips dirt etc that enters tubing or service valve connections UDS YDOYHV ZLWK D ZHW UDJ RU WKHUPDO EDUULHU compound before applying heat UD H WKH WXELQJ EHWZHHQ WKH RXWGRRU XQLW DQG LQGRRU FRLO ORZ GU QLWURJHQ LQWR D SUHVVXUH SRUW DQG WKURXJK WKH WXELQJ ZKLOH EUD LQJ EXW GR QRW DOORZ SUHVVXUH LQVLGH WXELQJ ZKLFK FDQ UHVXOW LQ OHDNV 2QFH WKH V VWHP LV...

Page 22: ...ion Evacuation is one of the most important parts of the entire installation and service procedure The life and efficiency of the equipment is dependent upon WKH WKRURXJKQHVV H HUFLVHG E WKH VHUYLFHPDQ ZKHQ evacuating air and moisture from the system Air or nitrogen in the system increases condensing temperature and pressure resulting in increased SRZHU FRQVXPSWLRQ HUUDWLF RSHUDWLRQ DQG UHGXFHG ca...

Page 23: ...WG 127 R QRW XVH FRQWURO ZLULQJ VPDOOHU WKDQ 1R EHWZHHQ WKHUPRVWDW DQG RXWGRRU XQLW WIRE COLOR CODE BK BLACK GY GRAY W WHITE BR BROWN O ORANGE Y YELLOW BL BLUE PR PURPLE G GREEN R RED Wiring 4 0 INSTALLATION 4 9 Control Wiring 4 10 Typical Control Wiring Connections 7KH IROORZLQJ ILJXUHV VKRZ WKH W SLFDO ZLULQJ diagrams for air handlers and a 2 stage heat pump DQG IRU GXDO IXHO DSSOLFDWLRQV ZLWK D...

Page 24: ... A TYPICAL 2 STAGE THERMOSTAT WITH DEHUMIDIFICATION AND A MAL FUNCTION LIGHT 4 10 Typical Control Wiring Connections Cont TYPICAL DUAL FUEL APPLICATION 2 STAGE HEAT PUMP USING A TYPICAL 2 STAGE THERMOSTAT W1 B C G Typical Two Stage Thermostat 2 Stage Heat Pump Outdoor Unit Y2 B Y2 R Y R C Y1 D W E W2 S 5 YELLOW BLUE RED BROWN YELLOW PURPLE BLUE 12 FT OUTDOOR SENSOR 2 NOTES 1 FOR PROGRAMMING THERMO...

Page 25: ...ctrical box 6HH ZLULQJ GLDJUDP DWWDFKHG WR XQLW DFFHVV SDQHO and above illustration KHFN DOO HOHFWULFDO FRQQHFWLRQV LQFOXGLQJ IDFWRU ZLULQJ ZLWKLQ WKH XQLW DQG PDNH VXUH DOO connections are tight 2 127 FRQQHFW DOXPLQXP ILHOG ZLUH WR WKH contactor terminals 4 12 Grounding WARNING The unit must be permanently grounded Failure to do so can cause HOHFWULFDO VKRFN UHVXOWLQJ LQ VHYHUH SHUVRQDO LQMXU or ...

Page 26: ...R small they also cause noise The installers should balance the air distribution V VWHP WR HQVXUH SURSHU DQG TXLHW DLUIORZ WR DOO rooms in the home This ensures a comfortable living space The correct air quantity is critical to air conditioning systems Proper operation efficiency compressor life and humidity control depend on the correct EDODQFH EHWZHHQ LQGRRU ORDG DQG RXWGRRU XQLW FDSDFLW FHVVLYH...

Page 27: ... All steps listed should be performed to ensure proper charge has been set For measuring pressures the service valve port on the liquid valve small valve and the WUXH VHUYLFH SRUW ORFDWHG EHWZHHQ WKH WZR VHUYLFH valves are to be used 5 4 1 Measurement Device Set Up 1 With an R 410A gauge set attach the high pressure hose to the access fitting on the liquid line small service valve at the OD unit 2...

Page 28: ...U conditions ONLY Cooling Mode ONLY 55 F 12 8 C outdoor dry bulb and above HDWLQJ 0RGH 21 HWZHHQ DQG 60 F 15 6 C outdoor dry bulb 3 Locate and note the design pressures The correct liquid and vapor pressures are found at the intersection of the installed system and the outdoor ambient temperature on the Charging Chart located inside the access panel cover LTXLG 3UHVVXUH BBBBBBSVLJ 9DSRU 3UHVVXUH _...

Page 29: ..._ C SC _____ F _____ C 5 Adjust charge to obtain the specified subcooling YDOXH I WKH PHDVXUHG VXEFRROLQJ OHYHO LV EHORZ the listed requirement for the given outdoor temperature add charge If the measured subcooling level is above the listed requirement for the given outdoor temperature remove charge 5 0 SYSTEM START UP REFRIGERANT CHARGING 5 4 5 R 410A Temperature Pressure Chart 5 5 Completing In...

Page 30: ...KH WKHUPRVWDW LV VZLWFKHG WR WKH 2 WKH UHYHUV ing valve solenoid is de energized If the system is RSHUDWLQJ LQ WKH KHDWLQJ PRGH ZKHQ WKH WKHUPRVWDW LV VZLWFKHG WR WKH 2 SRVLWLRQ WKH UHYHUVLQJ YDOYH ZLOO VKLIW WR WKH FRROLQJ SRVLWLRQ DQG ZLOO UHPDLQ WKHUH XQWLO WKH WKHUPRVWDW LV VZLWFKHG EDFN WR WKH 7 PRGH and there is a call for heating NOTE 2 and 3 ton models feature a 2 speed ECM RXWGRRU IDQ PRW...

Page 31: ...dler or gas furnace is directed to supply supplemental heat to prevent cold air from being discharged from the supply registers during the defrost cycle 4 The compressor is energized after the 30 second delay has been completed and defrosting of the coil begins LMYVZ LYTPUH PVU 7KH GHIURVW F FOH ZLOO continue until the coil temperature has reached the termination temperature or 14 minutes KDYH HOD...

Page 32: ...tarily shorting WKH WZR 7 67 SLQV 7KH XQLW PXVW KDYH DQ DFWLYH heat pump heating call to enter the test mode In this mode of operation the enable temperature is ignored and all timers are sped up To initiate a manual defrost short and hold the TEST pins 5HPRYH WKH VKRUW ZKHQ WKH V VWHP VZLWFKHV to defrost mode after the compressor noise DEDWHPHQW GHOD 7KH GHIURVW ZLOO WHUPLQDWH RQ WLPH PLQXWHV RU ...

Page 33: ...KH FRPSUHVVRU WR IXOO FDSDFLW 7KH 9 VLJQDO IURP WKH WKHUPRVWDW LV UHFWLÀHG WR FXUUHQW E D GLRGH ORFDWHG LQ WKH ZLULQJ KDUQHVV WKDW connects to the 2nd stage terminals on the com pressor 7 3 Fan Motor 2 and 3 ton models feature a 2 speed ECM outdoor IDQ PRWRU WKDW RSHUDWH RQ ORZ VSHHG IRU VW VWDJH cooling and heating operation and high speed for 2nd stage cooling and heating operation Standard sing...

Page 34: ...ens in the cooling mode to provide XQUHVWULFWHG ÁRZ OO 7 9 V KDYH D EOHHG UDWH to help eliminate hammering in the off cycle that VRPHWLPHV RFFXUV ZKHQ QRQ EOHHG 7 9 V DUH XVHG on both the indoor coil and outdoor heat pump unit MAXIMUM SYSTEM CHARGE VALUES Charge Limit Model Compressor Without Size Model Number Crankcase Heater 24 36 48 60 ZPS21K5E PFV ZPS30K5E PFV ZPS40K5E PFV ZPS49K5E PFV 9 6 lbs...

Page 35: ...R F 18 C in order to maintain system balance and FDSDFLW RZ DPELHQW FRQWURO VKRXOG EH XVHG RQ DOO HTXLSPHQW IUHTXHQWO RSHUDWHG EHORZ F 21 C ambient Part No 9 8 3 Compressor Hard Start Kit All Models Part No 2 8 4 Compressor Crankcase Heater 2 Ton Model Part No 44 101884 08 Z RXWGRRU temp thermostat or 44 17402 44 Z R RXWGRRU temp thermostat NOTE 3 5 ton models have factory installed FUDQNFDVH KHDW...

Page 36: ...mbient Sensor Failure FLASH FLASH Normal OFF FLASH Low Pressure Lockout short test pins to reset FLASH OFF High Pressure Lockout short test pins to reset ON FLASH Low Pressure Control Open FLASH O ON OFF N H In Defrost Mode igh Pressure Control Open Alternate Flashing 5 Minute Time Delay Degrees C Degrees F Ohms 20 4 96 974 10 14 55 298 0 32 32 650 10 50 19 903 20 68 12 493 25 77 10 000 30 86 8 05...

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Page 40: ...LOHG HIURVW 5HOD GRHVQ W VWRS 2 IDQ QFRPSOHWH HIURVW FHVVLYH HIURVW 7LPH 1R HIURVW URQJ HIURVW RQWURO 7LPHU 6HWWLQJ 3RRU 6HQVRU RFDWLRQ RZ 6 VWHP KDUJH 3RRU 6HQVRU RFDWLRQ URQJ HIURVW RQWURO 7LPHU 6HWWLQJ 5HYHUVLQJ 9DOYH 6WXFN 1R HIURVW 7LPHU RQWURO 3RZHU DLOHG HIURVW RQWURO DLOHG HIURVW 5HOD XULQJ HIURVW RRVH HIURVW 6HQVRU HIURVW 6 VWHP LQG IIHFWLQJ HIURVW ...

Page 41: ...t Evacuate and recharge Add or UHSODFH ÀOWHU GULHU Locate restriction and clear Compressor short cycles Incorrect voltage Defective overload protector Refrigerant undercharge or overcharge HPS or LPC cycling At compressor terminals voltage must be 10 of QDPHSODWH PDUNLQJ ZKHQ XQLW LV RSHUDWLQJ 5HSODFH FRPSUHVVRU KHFN IRU FRUUHFW YROWDJH Adjust charge per charging chart 5HJLVWHUV VZHDW RZ LQGRRU DL...

Page 42: ...ompany problem Report problem High head pressure Overcharge Check system charge Dirty heat pump coil Clean coil Faulty or wrong size heat pump fan motor Check capacitor Replace fan motor Faulty fan blade or wrong rotation Replace fan blade Replace with correct rotation motor Recirculation of air Correct installation Additional heat source Check for dryer vent near unit Check for recirculation from...

Page 43: ... UHVHW RPSUHVVRU ZLQGLQJV KHFN IRU FRUUHFW RKPV 9ROWDJH SUHVHQW on line side of compressor contactor only Thermostat KHFN IRU FRQWURO YROWDJH WR FRQWDFWRU FRLO Compressor control circuit LJK SUHVVXUH VZLWFK RZ SUHVVXUH VZLWFK Ambient thermostat Solid state protection control or internal thermal sensors RPSUHVVRU WLPHG RII RQ FRQWURO RU LQWHUORFN No voltage on line side of compressor contactor ORZQ...

Page 44: ...cuate and recharge Excess soft solder Wrong solder material Reclaim refrigerant evacuate and recharge LOSS OF LUBRICATION SYMPTOM POSSIBLE CAUSE REMEDY Compressor failures Vapor line tubing too large Reduce pipe size to improve oil return Low suction pressure Low charge Check system charge Refrigerant leaks Repair and recharge Cold noisy compressor Slugging Dilution of oil with refrigerant Observe...

Page 45: ...ged external equalizer line Remove external equalizer line restriction 8QGHUVL HG 7 9 5HSODFH ZLWK FRUUHFW YDOYH RVV RI FKDUJH IURP SRZHU KHDG VHQVLQJ EXOE 5HSODFH SRZHU KHDG RU FRPSOHWH 7 9 KDUJH PLJUDWLRQ IURP VHQVLQJ EXOE WR SRZHU KHDG DUP SRZHU KHDG ZLWK ZDUP ZHW FORWK RHV YDOYH RSHUDWH FRUUHFWO QRZ QVXUH 7 9 LV ZDUPHU WKDQ VHQVLQJ EXOE 9DOYH IHHGV WRR PXFK UHIULJHUDQW ZLWK ORZ superheat and h...

Page 46: ...HPRYH RUUHFW DQ DLUÁRZ UHVWULFWLRQ Superheat and suction pressure ÁXFWXDWH YDOYH LV hunting 7 9 LV RYHUVL HG QVWDOO FRUUHFW 7 9 Sensing bulb is affected by liquid refrigerant or UHIULJHUDQW RLO ÁRZLQJ WKURXJK VXFWLRQ OLQH Relocate sensing bulb in another position around the circumference of the suction line 8QHTXDO UHIULJHUDQW ÁRZ WKURXJK HYDSRUDWRU circuits Ensure sensing bulb is located properly...

Page 47: ...or RZ High High High RZ Indoor TXV Sensing Bulb Charge Lost RZ RZ High High RZ Poorly Insulated Indoor Sensing Bulb High High RZ RZ High HEATING MODE TROUBLESHOOTING TIPS SYSTEM PROBLEM INDICATORS DISCHARGE PRESSURE SUCTION PRESSURE SUPERHEAT Normal 5 15 F 2 8 8 3 C SUBCOOLING Normal See Charging Chart COMPRESSOR AMPS Overcharge High High 2 High High Undercharge RZ RZ 2 RU LJK RZ RZ Liquid Restric...

Page 48: ...LJ LSLJ YPJHS WV LY V OL UP ILMVYL YLTV PUN OL VW WHULS VY HU LSLJ YPJHS WHULS HZ OL MHU TV VY JV SK Z HY H HU PTL HUK SP L LSLJ YPJHS JVUULJ PVUZ PSS IL L_WVZLK Annual cleaning of the exterior cabinet is UHFRPPHQGHG XVLQJ D PLOG GHWHUJHQW ZDWHU DQG cloth sponge to remove dust mold and potentially corrosive contaminants that have collected on the cabinet It is also recommended to apply a good TXDO...

Page 49: ...MS Wiring Diagrams 11 1 2 and 3 Ton Models with ECM Fan Motor REMOTE HEAT PUMP SINGLE PHASE WITH ECM DEMAND DEFROST CONTROL NON COMMUNICATING TWO STAGE WIRING DIAGRAM Y2 W BL Y BL Y2 WN WIRE NUT 03 JHB 2 10 17 90 101229 44 ...

Page 50: ...LE PHASE CONDITIONS 3 CONNECT FIELD WIRING IN GROUNDED RAINTIGHT CONDUIT TO 60 HERTZ FUSE DISCONNECT VOLTAGE AND PHASE PER RATING PLATE 4 LOWVOLTAGE CIRCUIT TO BE N E C CLASS 2 WITH A CLASS 2 TRANSFORMER 24 VOLT 60 HERTZ 5 TO THERMOSTAT SUB BASE REFER TO SYSTEM SCHEMATICS OR SCHEMATICS ON INDOOR SECTION FOR LOW VOLTAGE CONTROL WIRING 6 THIS WIRE IS USED TO TURN ON STRIP HEAT DURING DEFROST OMIT CO...

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