104
17. Troubleshooting
Guide
17.1 Refrigeration Cycle System
In order to diagnose malfunctions, make sure that there
are no electrical problems before inspecting the
refrigeration cycle.
Such problems include insufficient insulation, problem
with the power source, malfunction of a compressor and a
fan.
The normal pressure of the refrigeration cycle depends
on various conditions, the standard values for them are
shown in the table on the right.
Value of electric
current during operation
Lower than specified
Higher than specified
Heating Mode
Cooling Mode
Low
Low
Low
Low
Low
High
Gas side
pressure
Water leakage or insufficient
water flow rate in the system
●
Measuring electric current
during operation
●
Measuring gas side pressure
Excessive amount
of refrigerant
Inefficient compressor
Insufficient refrigerant
Insufficient refrigerant
Inefficient compressor
Clogged strainer or
expansion valve
Clogged strainer or
expansion valve
Normal Pressure (Standard)
Condition:
●
Outdoor temperature
7°C at heating mode and
35°C at cooling mode.
●
Compressor operates at
rated frequency.
Gas pressure
MPa (kg/cm
2
G)
Heating Mode
Cooling Mode
2.3 ~ 2.9 (23 ~ 29)
0.9 ~ 1.2 (9 ~ 12)
Summary of Contents for WH-ADC0916G9E8
Page 34: ...34 4 2 Outdoor Unit Air inlet rear Air inlet side Air inlet side Air outlet Air outlet ...
Page 40: ...40 8 Wiring Connection Diagram 8 1 Indoor Unit RY HT L1 RY HT L2 RY V3 RY V2 RY HT L3 ...
Page 100: ...100 Note Default value refer Location of Control and Component OPERATION ACTUAL ...