DC Inverter U-match Series for R410A Unitary Split Air Conditioner
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Check items
Possible events due to improper
installation
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 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 units can run normally.
(4) If there’s sound of liquid shock when the compressor is running, then stop
the air conditioner immediately. Wait until the electric heating belt is heated
enough, and then restart the air conditioner.
①
.
If you use remote control to turn off the unit and then immediately turn the unit
on again, compressor will need 3min to restart. Even if you press “ON/OFF”
button on the remote control, it won’t be started up right away.
②
.
If there’s no display on the wired control, it’s probably because the connection
wire between the units and the temperature controller are not connected.
Please check again.
