Photovoltaic Multi VRF
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protected in order to avoid scratching the cable. After finishing wiring of junction case, please
check the strength of wire and sealing of case. After checking, close the case cover and lock it
with key.
Installation of : Install it according to the engineering diagram. The cabinet shall be
grounded and each cabinet shall be connected with the base separately. Check if all electronic
components in the cabinet are in accordance with the principle diagram. Check if the rated
voltage and control and operation power voltage are in accordance with the related
requirement. Finally, adjust the overcurrent circuit breaker of cabinet, relays and mechanical
linkage.
5 Check Items after Installation and Test Operation
5.1 Check Items after Installation
Check items
Possible conditions due to improper installation
Check
Each part of the unit is installed securely?
Unit may drop, shake or emit noise.
Gas leakage test is taken or not?
Insufficient cooling (heating) capacity
Unit gets proper thermal insulation or not?
There may be condensation and dripping.
Drainage is smooth or not?
There may be condensation and dripping.
Is the voltage in accordance with the rated
voltage specified on the nameplate?
Unit may have malfunction or components may
get damaged.
is the electric wiring and pipe connection
installed correctly?
Unit may have malfunction or components may
get damaged.
Unit is securely grounded or not?
Electrical leakage
Power cord meets the required specification?
Unit may have malfunction or components may
get damaged.
Is the air inlet/outlet blocked?
Insufficient cooling (heating) capacity
Length of refrigerant pipe and the charging
amount of refrigerant are recorded or not?
The refrigerant charging amount is not
accurate.
Binding pieces on compressor feet are removed
or not?
Compressor may get damaged.
5.2 Test operation and debugging
Notice:
①
After finishing the first installation or replacing the main board of outdoor unit, it is necessary
to perform test operation and debugging. Otherwise, unit won’t be able to work.
②
Test operation and debugging must be performed by professional technicians or under the
guidance of professional technicians.
5.2.1 Prepare the test operation and debugging
(1) Do not connect power until all installation work is finished.
(2) All control circuits and wires are correctly and securely connected.
(3) Check whether the fixing loops for compressor foots are removed.
(4) All small pieces, especially metal chips, thread ends and forceps holder, must be
removed from the unit.
(5)
Check whether unit’s appearance and pipeline system has been damaged during
transportation.
Содержание GMV-Y120WL/A-T
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