Airwell KXV Series, Инструкция по эксплуатации

Страница: 222 / 380

Engineering manual
222
Outer dia.of copper
pipe(mm)/(Inch)
Further tightening
angle
φ 9.5(3/8”) 60~90
φ 15.9(5/8”) 30~60
φ 19.06(3/4”) 20~35
C.
How to handle stop valve

The stop valves for indoor-outdoor connecting piping are closed at shipment from the factory. Make sure to keep
the valve open during operation. The names of parts of the stop valve are shown as following:

Since the side boards may be deformed if only a torque wrench is used when loosening or tightening flare nuts, so
always lock the shut-off valve with a wrench and then use a torque wrench.

Do not place wrenches on the valve cover! This may result in a refrigerant leak.

For cooling operation under low ambient temperature or any other operation under low pressure, apply silicon
pad or similar to prevent freezing of the gas stop valve flare nut.
D.
How to handle the valve cover

The valve cover is sealed where indicated by the arrow:

After operating the valve, be sure to tighten the valve cover properly.

Check for refrigerant leakage after tightening the cap.
Chart 1-23
Chart 1-24
Chart 1-25