Check Items After Installation And Trial Run; Check Items After Installation; Trial Run - Gree GMV-224WM/B-X Owner's Manual

5 Check Items after Installation and Trial Run

5.1 Check Items after Installation

Check Items
Has the unit been fixed firmly?
Have you done the gas leakage test?
Is the unit get proper thermal insulation?
Does the unit drain well?
Is the voltage in accordance with the rated
voltage specified on the nameplate?
Is the electric wiring and piping connection
installed correctly and securely?
Has the unit been earthed securely?
Is the power cord specified?
Has the inlet and outlet been blocked?
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?

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.
D.C. Inverter Multi-variable Modular
Conditions Might Happen
The unit may drop, shake or emit noise.
It may cause insufficient cooling/heating
capacity.
It may cause condensation and dripping.
It may cause condensation and dripping.
It may cause malfunction or damage the part.
It may cause malfunction or damage the part.
It may cause electrical leakage.
It may cause malfunction or damage the part.
It may cause insufficient cooling/heating
capacity.
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.
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