Trial Run - Gree GMV-680WM/E-X Manuel D'utilisateur

GMV DC Inverter VRF
Check Items
Has the pipe length and refrigerant charging
amount been recorded?
Is the address code of outdoor modules correct?
Is the address code of indoor units and wired
controller correct?
Has the communication line been connected
correct?
Is the piping connection and valve status right?
Whether phase sequence of external power cord
is correct or not?
Whether the engineering piping work and wiring
holes are sealed?

5.2 Trial Run

Note: during debugging, one and only one module must be set as a master module.
During debugging, one and only one IDU must be set as a master IDU.
When no special requirement is needed, no need to set other functions. Unit can operate
according to ex-factory settings. When special requirement is needed, please read the Service
Manual or Debugging and Maintenance Manual.
5.2.1 Preparation before trial run
(1) The power supply should be turned on only after finishing all the installation.
(2) All the control wires and cables are connected correctly and safely.Completely open
the gas and liquid valves.
(3) All the objects like metal filing, thrum and clip should be cleared after installation.
(4) Check if the unit appearance and piping system is damaged or not due to
transportation.
(5) Check if the terminals of electrical element is loose and the phase sequence is correct
or not.
(6) Check the valve: For single-module unit, fully open the gas and liquid valve and close
oil balance valve; For dual/three module unit, fully open the gas, liquid valve and oil
balance valve.
5.2.2 Trial run
5.2.2.1 Notices
(1) Before test operation, make sure unit is power on and compressor has been preheated
for more than 8 hours. Touch the unit to check whether it's normally preheated. Start
test operation after unit is normally preheated, otherwise compressor might be
damaged. Debugging must be performed by professional technicians or under the
guide of professional technicians.
Copyright 2018. This translation is property of GREE PRODUCTS SL. All rights reserved. Total or partial reproduction without its express authorization is prohibited.
Conditions Might Happen
The refrigerant charging amount is not
accurate.
The unit can not run normally. Communication
malfunction might happen.
The unit can not run normally. Communication
malfunction might happen.
The unit can not run normally. Communication
malfunction might happen.
The unit can not run normally.
Operation failure occurs or unit is damaged.
Maybe there are mice biting the wires, which is
the cause of malfunction.
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Check