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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 outlet air temperature and pressure of the
refrigeration cycle depends on various conditions, the
standard values for them are shown in the table to the right.
Normal Pressure and Outlet Air Temperature (Standard)
Gas pressure MPa
(kg/cm
2
G)
Outlet Air
Temperature (°C)
Cooling Mode 0.9 - 1.2 (9 - 12) 12 - 16
Heating Mode 2.3 - 2.9 (23 - 29) 36 - 45
Condition:
•
• •
•
Indoor fan speed; High
•
• •
•
Outdoor temperature 35 °C at cooling more and 7 °C at
heating mode.
•
• •
•
Compressor operates at rated frequency
13.2. Troubleshooting
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CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE