16. Troubleshooting Guide

16.1Refrigeration 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 on the right.

Normal Pressure and Outlet Air Temperature (Standard)

 

Gas Pressure

Outlet air

 

PSI

Temperature

 

(kg/cm2G)

(°F)

Cooling Mode

130.53

~ 174.04

53.6 ~ 60.8

(9 ~ 12)

 

 

Heating Mode

333.58

~ 420.60

96.8 ~ 113

(23

~ 29)

 

 

Condition: Indoor fan speed = High

Outdoor temperature 95°F at cooling mode and 44.6°F at heating mode.

Compressor operate at rated frequency

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Panasonic CS-E12NKUAW, CU-E12NKUA, CU-E9NKUA, CS-E9NKUAW service manual Troubleshooting Guide, Refrigeration Cycle System

CS-E9NKUAW, CU-E9NKUA, CU-E12NKUA, CS-E12NKUAW specifications

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