Zell AC1000, Service Manual

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10
5
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 220V 220V 220V 50Hz 50Hz 50Hz 50Hz Power Power Power Power supply supply supply supply must must must must be be be be firmly firmly firmly firmly grounded grounded grounded grounded
5.1.3 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.
5.1.4 Press Function
Function
Function Function button, and enter Other
Other
Other Other Service
Service
Service Service Item, use password 9227. Enter
the M. M. M. M. control control control control valve valve valve valve interface. Long press the RECOVERY RECOVERY RECOVERY RECOVERY button, check the output of the
main control board is CN2,CN4,CN8. That means the SV8/compressor, SV4/SV6, SV1/fan
are working. Or please check the circuit connection.
5.1.5 After check the output, If the station is not OK, Pressurize the high and low side
hoses with refrigerant by function recharge, long press the key CHARGE
CHARGE
CHARGE CHARGE button.
5.1.6 Start the recovery by long pressing the “ “ “ “R R R R” ” ” ” button for at least 30 seconds. Suction
will begin and the LP gauge will be pulled into -0.2bar vacuum at least. Or please check if
the flow routine blocked, The solenoid valve and the compressor are in health working state.
5.2 Vacuum
5.2.1 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.
5.2.2 Press Function
Function Function
Function button, and enter Other
Other Other
Other Service
Service Service
Service Item, use password 9227. Enter
the M.
M.
M. M. control
control
control control valve
valve
valve valve interface. Long press the VACUUM
VACUUM
VACUUM VACUUM button, check the output of the
main control board is CN3,CN8. That means the SV1/fan, SV5/vacuum pump are working.
Or please check the circuit connection.
5.2.3 Start the vacuum by long pressing the VACUUM
VACUUM VACUUM
VACUUM button for at least 20 seconds.
Suction will begin and the LP gauge will be pulled into -0.85bar vacuum at least. Or please
check if the flow routine blocked, the solenoid valve and the compressor are in health
working state.