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operation, the operation of a spanner easily because damage to the
copper tube connected to the valve.
Note refrigerant line connected to
1. Manufacturers provide 3.9 kW/7.2 kW/12 kW 5 m standard pipe,
such as pipes require a longer, contact with the sales staff.
2. The liquid return pipe diameter should be selected and reasonable
length, to ensure that the pressure drop of the refrigerant liquid
flows through the tube unit operation generated no more than
40kPa. Unit and the exhaust pipe and return pipe insulation were to
be processed.
3. The installation and removal of the refrigerant pipe should be careful,
so that the line will not distort or damage.
4. All refrigerant pipe connection as by welding, use of silver braze
welding electrode. During the welding process, should pass the
0.03MPaNitrogen protected.
5. When the pipeline and welding the ball valve, it should pack a damp
cloth to cool ball to prevent heat damage.
6. The refrigerant tube support is arranged to be set up before
completion of the pipe, using the refrigerant pipe between the
control card and the support frame, the fixed connection pipe collar
to avoid direct contact.
7. The refrigerant pipe passes through the wall or other obstacles to be
avoided by measures such as brass cushion in direct contact with the
wall, in order to avoid damage to the tubing, while reducing the
vibration.
8. Horizontal pipeline slope should meet the design requirements. They
inunit oil return.
9. When the outdoor unit is installed above the indoor unit 6 m, the gas
pipe should be installed side-trap.
10. The refrigerant line before use, should leak, pressure and vacuum
test, and the vibration insulating spacer frame spaced from the
refrigerant line and the building.
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