1 About this service manual This service manual describes the service task of ZELL AC1000 Air-Con Service Station This manual is for those who perform repair and maintenance on AC1000 and have the expertise required to do so. This manual contains all the instructions necessary for safe and effective service operation of the AC1000 Station.
■If scale assembly and circuit are not calibrated, scale can overfill the tank, causing possible explosion and/or vehicle overcharge. ■Use only ZELL Designated Replacement Components when servicing your equipment. Refer to the operator’s manual or this service manual for correct replacement part number(s).
Function check 5.1 Recovery 5.1.1 The working tank must have at least 2.5Kg of refrigerant in it to perform this test. 5.1.2 Plug in the cord to 220V 50HZ power supply, Turn ON the main power switch. 220V 50Hz Power supply must be firmly grounded 5.1.3 Confirm that the HP, LP quick coupler and hoses are well fixed to the units.
5.3 Recharge 5.3.1 Confirm that the HP, LP quick coupler and hoses are well fixed to the units. And all tank hoses are properly attached to the working tank. 5.3.2 Press Function button, and enter Other Service Item, use password 9227. Enter the M.
6 Load cell check 6.1.1 Press Function button, and enter Other Service Item, use password 7278. Enter the Data Info interface. There displays the raw data and the convert data, The Raw data is the original data from the load cell, the convert data is the manual handled data. To check if the scale is ok or not, remove the tank on the load cell plate.
7 Compressor Suction and Discharge Pressure Test 7.1 General Spec. of compressor 7.1.1 Disconnect all fittings from the compressor. Cap the Suction port. Install a LP gauge on the process port. Install a HP gauge on the discharge port. Start the compressor and monitor the gauge readings the discharge pressure should build to 17 bar in HP gauge.
8 Trouble shooting 8.1 No display Check for proper power source, check circuit breaker and electrical connectors for damage or corrosion.(Refer to compressor specifications on wiring diagram if needed. if not receiving power, check the continuity of the wring between solenoid and circuit board-repair as needed.
9 Disposal 9.1 Disposing of used fluids Used oil is hazardous waste. Do not mix used oil with other fluids. Keep used oil in suitable containers prior to disposal. 9.2 Disposing of packaging material ■The cardboard packaging material should be disposed of with other waste paper. ■Plastic packaging material should be added to other recyclable waste.