Gree GMV-WQ120WM/A-F, Руководство пользователя

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Water-cooled Heat Recovery DC Inverter VRF
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5 Check Items after Installation and Trial Run
5.1 Check Items after Installation
Check Item. Possible Problems Caused by Improper Installation. Check
Are the unit components installed securely? The unit may fall, vibrate or generate noise.
Is the leakage test performed?
The cooling capacity (or heating capacity) may be
insufficient.
Is thermal insulator getting prepared well for
the unit?
Condensation and dripping may occur.
Is the water drainage smooth? Condensation and dripping may occur.
Is the power voltage consistent with that
indicated on the nameplate? The unit may become malfunction or the parts may be
burnt.
Are the lines and pipes correctly installed?
The unit may become malfunction or the parts may be
burnt.
Is the unit safely earthed? Electric leakage may occur.
Is the power cord specified?
The unit may become malfunction or the parts may be
burnt.
Is there any obstacle blocking the water
outlet or inlet of ODU? The cooling capacity (or heating capacity) may be
insufficient.
Are the refrigerant pipe length and the
refrigerant filling quantity recorded?
The filling quantity of refrigerant is not accurate.
Are the address dialing and module number
dialing of the outdoor module correct?
The unit cannot run and communication fault occurs.
Is the address dialing and wired controller
dialing of IDU correct?
The unit cannot run and communication fault occurs.
Are the communication cables of the unit
correctly connected?
The unit cannot run and communication fault occurs.
Are the unit pipe connection and the on/off
status of valves correct? The unit cannot operate normally or the unit is
damaged.
Is the water flow direction of the unit heat
exchanger correct?
The cooling performance becomes poor.
Is the water flow switch correctly installed?
The unit cannot run and water flow switch exception
protection occurs.
5.2 Trial Run
During debugging, only one IDU should be set as master IDU.
When no special requirement is necessary, setting functions is finish. Unit can operate according
to ex-factory settings. When special requirement is needed, please refer to Service Manual or
Debugging and Maintenance Manual for detail.
5.2.1 Preparation before trial run
(1) Do not power on the unit until all installation operations are completed.
(2) All control circuits and electric wires must be correctly and securely connected; valves of gas
pipe and liquid pipe must be fully opened.
(3) All the objects like metal filing, thrum and clip should be cleared after installation.
(4) Check whether the unit appearance and pipeline system are damaged during transportation.
(5) Check whether the terminals of electrical appliances in the unit are securely connected and
whether the phase sequence is correct.
(6) Check the on/off status of valves in the system to ensure that: in single modular mode,
valves of gas pipe and liquid pipe are opened and oil balance valve is closed.
(7) Ensure that the adding of refrigerant through pipes is completed or at least 70% of the
refrigerant filling quantity is added.