AUX ASW-H09A4/EAR1-dw, Service Manual

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7. Expelling the air in the pipes and the indoor unit
Expelling the air: humid air in the refrigerating system might cause
trouble of compressor.
① Take off the cover from the stop valve and T-branch valve.
② Take off the auxiliary cover from the T-branch valve.
③ Turn the stop valve rod anti-clock wise to an angle of 90 degree,
keep it open for 8 seconds and close the valve.
④
Check whether there is air leakage at all connection parts of
pipes.
⑤
Push the top rod of T-branch valve by hexagon wrench to expel
air.
⑥
Repeat the third and fifth steps.
⑦
Open the stop and T-branch valve with a hexagon wrench to
make the unit operate.
⑧
No leakage is allowed, please check all the piping connection
parts. You must test the leakage, generally, it can be tested by soap
water.
8. Electrical connection
① Unscrew the screw, take off the control panel cover
from the unit.
②
Cooling type: connect the wire to the related
connection point on the panel and connect the signal
connection plug.
Remarks: yellow and green cord should be connected to
connection point with
mark.
③
Fasten the fixture of wire to control panel.
④
Screw up the control panel cover to its original place.
9. Test running
① Make sure that the pipes and wires are connected.
② Make sure that both the liquid valve and gas
valve on the side are completely open.
The connection of power source
¾ Connect the wire to independent power source
socket.
¾ Preparation of remote control.
¾
Run the air-conditioner in cooling operation
mode for 30 minutes or longer.
Performance evaluation
¾ Test the out and in air temperature.
¾ Make sure that the temperature difference
between the out and in air is greater than 8
o
C.
10. Items of attention
① Fix the machine firmly, otherwise it will produce noise and vibration.
② Install the outdoor unit where it will not disturb your neighbor.