Gree CF01000730, Service Manual

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GREE Duct type split Air conditioner Inverter Series
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1.4 Debugging Process
1.4.1 Confirm before commissioning Description
(1) Do not disconnect the power before the installation is finished.
(2) All wires for controller and electric wires must be connected correctly and reliably.
(3) Check the fixing ring of the foot of compressor for transportaion is removed.
(4) Remove all sundries from the unit, such as metal chips, joint, forceps holder, and so on.
(5) Check whether the appearance and pipeline system are damaged during carry or transportation
process.
(6) Calculate the required added refrigerant-charging volume according to the length of pipe of
system and pre-charge the refrigerant. If refrigerant can’t be added any more when the required
refrigerant-charging volume hasn’t been reached, record to refrigerant volume which still needs
to be added and continue to add refrigerant during run test operation process. Please refer to
below run test for the refrigerant-adding stage during run test process.
(7) After adding refrigerant, please make sure the valve for outdoor is opened completely.
(8) For the convenient of troubleshooting, the unit can’t be connected to the PC which installed with
related debugging software and make sure that the data in real time of this unit can be inspected
by this computer. Please refer to Service Manual for the installation and connection of the
bebugging software.
(9) Before turn test, please do make sure that the preheat time for compressor is 8h above and
touch the compressor to see whether preheat is normal. You can perform run test only after
normal preheat. Otherwise, it may damage the compressor.
1.4.2 Main board of ODU for Debugging
Instruction:
(1) Indicator of main board (digital display tube) “LED1” and four button: “SW1”, “SW2”, “SW3” and
“SW4”:
Key No. SW1 SW2 SW3 SW4
Function Up Down OK Back
(2) “JUMP1”: jumper cap of the unit. Jumper cap No. varies from different type of unit.
(3) DIP switch “SA1”, DIP switch varies from different cooling capcity, before leaving the factory,