13 Servicing Information
13.1. TROUBLESHOOTING
13.1.1. Rated Frequency Operation
During troubleshooting and servicing, rated compressor operating frequency must be obtained in order to check the specification
and technical data. Below are the methods used to obtain rated compressor operating frequency.
1. Cooling
·
Press the AUTO button for 5-8 seconds on the indoor unit. The air conditioner starts operation at Cooling rated frequency.
2. Heating
Keep pressing the AUTO button for 8-11 seconds. The air conditioner starts operation at Heating rated frequency.
13.1.2. Troubleshooting Air Conditioner
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 or 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 following table.
Gas pressure MPa (kg/cm
2
G) Outlet air temperature (°C)
Cooling Mode 0.9 - 1.1 (9 - 11) 15 - 17
Heating Mode 2.1 - 2.8 (21 - 28) 35 - 41
* In case of CU-2E15CBPG/2E18CBPG
Condition:
·
Indoor fan speed; High
·
Outdoor temperature is 35 °C at cooling mode and 7 °C at heating mode.
·
Compressor operates at rated frequency.
80
CS-ME7CKPG / CS-ME10CKPG / CS-ME12CKPG / CS-ME14CKPG / CS-ME18CKPG / CU-2E15CBPG / CU-2E18CBPG / CU-3E23CBPG / CU-4E27CBPG
To Next Page
Loading...
Need help?
General
