Compressor And Thermistor Resistance; Refrigerant Circuit Guideline - York YAP026 Installation Manual

AFFINITY SERIES OUTDOOR PACKAGED HEAT PUMP INSTALLATION MANUAL
Compressor Resistance
Compressor
Model
Model No.
026 ZPS20K5E-PFV
038 ZPS30K5E-PFV
049 ZPS40K5E-PFV
064 ZPS51K5E-PFV
072 ZPS60K5E-PFV
NOTE: Resistance at 77˚F

Refrigerant Circuit Guideline

Symptom
Under Charged System (Possible Leak)
Over Charged System
Low Air Flow Heating
Low Air Flow Cooling
Low Water Flow Heating
Low Water Flow Cooling
High Air Flow Heating
High Air Flow Cooling
High Water Flow Heating
High Water Flow Cooling
Low Indoor Air Temperature Heating
Low Indoor Air Temperature Cooling
High Indoor Air Temperature Heating
High Indoor Air Temperature Cooling
Restricted TXV (Check Service Advisory)
Insufficient Compressor (Possible Bad Valves)
TXV - Bulb Loss of Charge
Scaled Coaxial Heat Exchanger Heating
Scaled Coaxial Heat Exchanger Cooling
Restricted Filter Drier
208-230/60/1
Run Start
1.21 - 1.39 1.52 - 1.75
0.81 - 0.94 1.41 - 1.63
0.48 - 0.55 1.72 - 1.99
0.36 - 0.42 1.51 - 1.74
0.31 - 0.36 1.72 - 1.98
2/7/12
Head Suction
Pressure Pressure
Low Low
High High
High High
Low Low
Low/Normal Low/Normal
High High
Low Low
Low High
Normal Low
Low Low
Low Low
Low Low
High High
High High
High Low
Low High
Low Low
Low Low
High High
Check temperature difference (delta T) across filter drier.
Thermistor Resistance
Thermistor
Temperature (°F)
5
14
23
32
41
50
59
68
77
86
95
104
113
122
131
140
149
Compressor
Superheat
Amp Draw
Low High
High Normal
High High/Normal
Low Low/Normal
Low Low
High High
Low Low
Normal High
Normal High
Low Low
Low Normal
Low Normal/Low
High Normal/High Normal/Low
High High
Normal/Low High
Low High
Low High
Low Normal/Low
High Normal/Low
46
Microprocessor
Resistance (Ohms)
75757-70117
57392-53234
43865-40771
33809-31487
26269-24513
20570-19230
16226-15196
12889-12093
10310-9688
8300-7812
6723-6337
5480-5172
4490-4246
3700-3504
3067-2907
2554-2424
2149-2019
Air Temp. Water Temp.
Subcooling
Differential Differential
Low Low
High Normal/Low
Low High
High High
High Low
Low Low
High Low
Low Low
Normal Normal
High Normal
High Normal Normal/High
High Low
Low
Low Low
High Low
Normal/High Low
High Low
High Low
Low Low
2/8/12
Low
Normal
Low
Low
High
High
Low
Normal
Low
Low
Low
Normal
High
Low
Low
Low
Low
Low
7/6/10