53Symptom HeadPressureSuctionPressureCompressorAmp Draw Superheat Subcooling Air Temp.DifferentialWater Temp.DifferentialUnder Charged System (Possible Leak) Low Low Low High Low Low LowOver Charged System High High High Normal High Normal/Low NormalLow Air Flow Heating High High High High/Normal Low High LowLow Air Flow Cooling Low Low Low Low/Normal High High LowLow Water Flow Heating Low/Normal Low/Normal Low Low High Low HighLow Water Flow Cooling High High High High Low Low HighHigh Air Flow Heating Low Low Low Low High Low LowHigh Air Flow Cooling Low High Normal High Low Low NormalHigh Water Flow Heating Normal Low Normal High Normal Normal LowHigh Water Flow Cooling Low Low Low Low High Normal LowLow Indoor Air Temperature Heating Low Low Low Normal High Normal Normal/HighLow Indoor Air Temperature Cooling Low Low Low Normal/Low High Low LowHigh Indoor Air Temperature Heating High High High Normal/High Normal/Low Low NormalHigh Indoor Air Temperature Cooling High High High High Low Low HighRestricted TXV (Check Service Advisory) High Low Normal/Low High High Low LowInsufficient Compressor (Possible Bad Valves) Low High Low High Normal/High Low LowTXV - Bulb Loss of Charge Low Low Low High High Low LowScaled Coaxial Heat Exchanger Heating Low Low Low Normal/Low High Low LowScaled Coaxial Heat Exchanger Cooling High High High Normal/Low Low Low LowRestricted Filter Drier Check temperature difference (delta T) across filter drier.7/6/10Refrigerant Circuit GuidelineThermistorTemperature (°F)MicroprocessorResistance (Ohms)5 75757-7011714 57392-5323423 43865-4077132 33809-3148741 26269-2451350 20570-1923059 16226-1519668 12889-1209377 10310-968886 8300-781295 6723-6337104 5480-5172113 4490-4246122 3700-3504131 3067-2907140 2554-2424149 2149-20192/8/12Thermistor ResistanceCompressor ResistanceModel CompressorModel No.208-230/60/1Run Start012 GK102KAA 3.35 - 3.85 2.80 - 3.22018 GK151KAA 2.24 - 2.58 2.84 - 3.26022 ZP16K5E-PFV 1.39 - 1.53 2.15 - 2.30030 ZP21K5E-PFV 1.21 - 1.39 1.53 - 1.75036 ZP25K5E-PFV 0.95 - 1.09 1.81 - 2.09042 ZP31K5E-PFV 0.83 - 0.95 1.54 - 1.78048 ZP38K5E-PFV 0.51 - 0.59 1.13 - 1.31060 ZP51K5E-PFV 0.42 - 0.48 0.73 - 0.85070 ZP57K5E-PFV 0.33 - 0.39 0.90 - 1.04026 ZPS20K5E-PFV 1.21 - 1.39 1.52 - 1.75038 ZPS30K5E-PFV 0.81 - 0.94 1.41 - 1.63049 ZPS40K5E-PFV 0.48 - 0.55 1.72 - 1.99064 ZPS51K5E-PFV 0.36 - 0.42 1.51 - 1.74072 ZPS60K5E-PFV 0.31 - 0.36 1.72 - 1.982/7/12AFFINITY SINGLE & DUAL CAPACITY SERIES INSTALLATION MANUAL