Gree GUD160W/NhB-X - 5.2 Error Code

DC Inverter U-match Series Duct Type Unit
57
3.4 Check after Installation
Check Items after Installation.
Check items
Possible events due to improper insta
l
lation
Is the main body installed
securely?
The unit may fall down, vibrate or produce
noise.
Did you do water leakage test?
Cooling capacity may become unsatisfactory.
Is the unit well insulated from
heat?
Condensate, water drops may occur.
Does water drainage go well?
Condensate, water drops may occur.
Is the voltage consistent with that
stated on the nameplate?
The unit may fail or its components may get
burned.
Are the wires and pipes installed
correctly?
The unit may fail or its components may get
burned.
Has the unit been safely
grounded?
Risk of electric leakage.
Do the specifications of wires
comply with the requirement?
The unit may fail or its components may get
burned.
Is there any obstacle blocking
the air inlet and outlet of the
indoor or outdoor units?
Cooling capacity may become unsatisfactory.
Have you recorded the length of
refrigerant pipe and the
refrigerant charging amount?
The refrigerant charging amount can’t be
controlled.
3.5 Test Running
Preparation before connecting the power:
(1) Power must not be connected if the installation work is not completed.
(2) Control circuit is correct and all the wires are firmly connected.
(3) Cut-off valves of the gas pipe and liquid pipe are open.
(4) The inside of the unit should be clean. Take irrelevant objects out if there
is any.
(5) After checking, re-install the front side plate.
Operation after connecting the power:
(1) If all the above works are finished, power on the unit.
(2) If the outside temperature is more than 30°C, heating mode can’t be
enabled.
(3) Make sure the indoor and outdoor units can run normally.