Airwell YCV280, Installation And Maintenance Instructions Manual

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Evacuate from the stop valve with vacuum pump,
and must not discharge the refrigerant in the
outdoor directly.
Check if there is leakage on the pipe connection
and the valve cap with a leakage detector or soap
water.
Open all valves, but when only one master unit is
running, the oil equalization valve should close.
Open all valves
Leakage checking
Evacuation
Cut pipe and expand pipe
When pipe is too long or flared pipe is damaged,
the intaller will cut pipe or expand pipe.
right
terminal
block
pressing
clip
wrong
Loose the screw, put the wire end into the terminal
block, then fasten the screw, pull out the wire to
confirm if the wire is fixed firmly.
After wiring, press the connection wire at the wire
sleeve firmly with pressing clip, as the figure:
2.Straight terminal wiring
3.Pressing method of connection wire
1.Ring terminal wiring:
The wiring method is as the above figure, take off the
screw, lead the screw through the ring terminal, then
press it in the terminal block to fasten the screw.
ring terminal
wiring:
Wiring method
D. Adopt air return from indoor, and forbidden air return from corridor.
E. Forbidden to use the duct unit as the fresh air motor.
F. The selection of indoor air sending/return duct should consider the indoor air distribution. Air sending
hole and air return hole should be a distance to avoid the short circuit.Meanwhile air outlet position and
direction should consider the cooling/heating effect and avoid the hot air can blow down because of the
air outlet too high.
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