– 43 –
MAC9512086C2
CS-A73KE
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.
Normal Pressure and Outlet Air Temperature (Standard)
Cooling mode
Heating Mode
Outlet air
temperature
(°C)
12 ~ 16
36 ~ 45
● Measuring electric current
during operation
● Measuring gas side pressure
● Measuring the air temperature
difference
Less than 8°C at the cooling mode
Less than 14°C at the heating mode
★ Condition: Indoor fan speed; High
Outdoor temperature 35°C at the cooling mode
and 7°C at the heating mode
Gas pressure
MPa
(kg/cm
2
G)
0.4 ~ 0.6 (4 ~ 6)
1.5 ~ 2.1 (15 ~ 21)
Difference in the intake
and outlet
air temperatures
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
Normal
Value of electric
current during operation
Higher than specified
Dusty condenser
preventing heat radiation
Excessive amount
of refrigerant
Lower than specified
Gas side
pressure
Cooling Mode
Low
Inefficient compressor
Insufficient refrigerant
Clogged strainer or
capillary tube
Inefficient compressor
Insufficient refrigerant
Clogged strainer or
capillary tube
Low
Low
Low
Low
High
Heating Mode
Untitled-15 6/19/00, 11:23 AM43
To Next Page
Loading...
Need help?
General
