DC Inverter Duct Type Unit
33
7.3 Fresh Air Control
11-levels control can be realized for the amount of fresh air taken in. The
function not only facilitates the health of users, but also controls the electricity
consumption loss because of taking in fresh air. This kind of control can be carried
out through the wire controller. The function can set at any time, goes into effect at
any time, and features very simple operation. (Refer to the section of wire controller
instructions for detailed operation.)
Fig. 7.3
8 Troubleshooting and Maintenance
8.1 Troubleshooting
If your air-conditioning unit suffers from abnormal operation or failure, please
first check the following points before repair:
Failure
Possible Reasons
The unit cannot be started.
①
. The power supply is not connected.
②
. Electrical leakage of air-conditioning unit causes tripping of
the leakage switch.
③
. The operating keys are locked.
④
. The control loop has failure.
The unit operates for a while
and then stops.
①
. There is obstacle in front of the condenser.
②
. The control loop is abnormal.
③
. Cooling operation is selected when the outdoor ambient
temperature is above 48°C.
