DC Inverter U-match Series Cassette Type Unit
47
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.
NOTES
：
①
If you use remote controller 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 controller, it won’t be started
up right away.
②
If there’s no display on the wired controller, it’s probably because the
connection wire between the indoor unit and wired controller is not
connected. Please check again.
