CS-HE9DKE CU-HE9DKE / CS-HE12DKE CU-HE12DKE

13.2. Troubleshooting

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

Outlet Air

 

 

(kg/cm2G)

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

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