Panasonic CS-C9PKV Service Manual

Also see for CS-C12PKV: Operating instructions

Contents

Panasonic CS-C9PKV Service Manual Manual pdf 78 page image

7816. Troubleshooting Guide16.1 Refrigeration cycle systemIn order to diagnose malfunctions, ensure the air conditioner is freefrom electrical problems before inspecting the refrigeration cycle.Such problems include insufficient insulation, problem with thepower source, malfunction of a compressor and a fan. The normaloutlet air temperature and pressure of the refrigeration cycledepends on various conditions, the standard values for them areshown in the table to the right.Normal Pressure and Outlet Air Temperature (Standard)Gas PressureMpa(kg/cm 2G)Outlet airTemperature(°C)Cooling Mode 0.4 ~ 0.6 (4 ~ 6) 12 ~ 16Condition: Indoor fan speed = HighOutdoor temperature = 35°CDifferent in the intakeand outletair temperatures NormalValue of electric currentduring operationDusty condenserpreventing heat radiationExcessive amountof refrigerantGas sidepressure Inefficient compressorInsufficient refrigerantClogged strainer orcapillary cube• Measuring the airtemperature different• Measuring electric currentduring operation• Measuring gas sidepressureMore than 8°C(15 minutes after anoperation is started)Less than 8°C at the cooling modeHigher than specifiedCoolingMode HighLowLowLower than specified