Table of Contents
Advertisement
Troubleshooting Guide
Refrigeration cycle system
In order to diagnose malfunctions, make sure that
there are no electrical problems before inspect-
ing the refrigeration cycle. Such problems include
insufficient insulation, problem with the power source,
malfunction of a compressor and a fan.
The normal outlet air temperature and pressure
of the refrigeration cycle depends on various condi-
tions, the standard values for them are shown in the
table to the right.
Difference in the intake
and outlet
air temperatures
Less than 8°C at the cooling mode
Less than 14°C at the heating mode
Value of electric
current during operation
Lower than specified
Gas side
pressure
More than 8°C
(15 minutes after an
operation is started.)
at the cooling mode
More than 14°C
(15 minutes after an
operation is started.)
at the heating mode
Higher than specified
Cooling Mode
High
Low
Low
Low
Heating Mode
Low
Low
Normal Pressure and Outlet Air Temperature (Standard)
Cooling mode
Heating Mode
1.5 ~ 2.1 (15 ~ 21)
Condition: Indoor fan speed; High
Outdoor temperature 35°C at the cooling mode
and 7°C at the heating mode
Normal
Dusty condenser
preventing heat radiation
Excessive amount
of refrigerant
Inefficient compressor
Insufficient refrigerant
Clogged strainer or
capillary tube
Inefficient compressor
Insufficient refrigerant
Clogged strainer or
capillary tube
– 36 –
CS-A181KR
Gas pressure
Outlet air
MPa
temperature
(kg/cm
2
G)
(°C)
0.4 ~ 0.6 (4 ~ 6)
12 ~ 16
36 ~ 45
Measuring the air temperature
difference
Measuring electric current
during operation
Measuring gas side pressure
Advertisement
Table of Contents
