Refrigerant Circuit Guideline - York YCL09 Installation Manual

AFFINITY LOW SILL SERIES INSTALLATION MANUAL

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
Head Suction Compressor
Pressure Pressure Amp Draw
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 Normal/Low
Low High
Low Low
Low Low
High High
Check temperature difference (delta T) across filter drier.
38
Superheat Subcooling
Low High
High Normal High
High High/Normal
Low Low/Normal High
Low Low High
High High
Low Low High
Normal High
Normal High Normal
Low Low High
Low Normal High
Low Normal/Low High
High Normal/High Normal/Low
High High
High High
Low High Normal/High
Low High High
Low Normal/Low High
High Normal/Low
Air Temp. Water Temp.
Differential Differential
Low Low Low
Normal/Low Normal
Low High Low
High Low
Low High
Low Low High
Low Low
Low Low Normal
Normal Low
Normal Low
Normal Normal/High
Low Low
Low Normal
Low Low High
Low Low
Low Low
Low Low
Low Low
Low Low Low
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