DC Inverter U-match Series Floor Ceiling Type Unit
43
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 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.
2.5 Product Operating Range
—
Cooling
Heating
Outdoor temperature DB(°C)
-20~52
-20~24
Indoor temperature DB/WB(°C)
(Maximum)
32/23
27/-
2.6 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.
(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.
(5) Feel the air flow of the indoor unit to see if it is normal.
(6) Press the swing button or speed control button on remote controller or
wired controller to see if the fan can run normally.
