SUNWARD SWE50B, Operation & Maintenance Manual

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②
. Please dip some drops of refrigerant oil onto the O-type gasket before assembling the pipelines.
③
. While assembling or disassembling the pipe joint, two spanners must be strong in an
opposite direction to avoid distorting the pipe.
④
. The following is the reference torques for screwing down the pipeline joint:
(10) If you find the electromagnetic clutch of the compressor attracts and disengages frequently, that is
because the condenser is too dirty, there is some air in the system or the refrigerant is overfull to make too high
pressure, the air-conditioner must be shut down at once and be repaired by professional maintenance people.
3.11 ACCUMULATOR
Warning
：
The accumulator is charged with high-pressure nitrogen gas. Improperoperation may lead to explosion
and result in serious injury or damage.
When handling accumulator, always follow the steps below.

The pressure in control piping could not be completely released. When disassembling hydraulic devices,
do not stand in the oil ejecting direction. Loosen the bolts gradually.

Do not disassemble accumulator.

Do not place the accumulator close to naked flame or get it exposed in fire.

Do not drill holes or weld on accumulator.

Do not get accumulator hit, rolled or shocked.
 When handling accumulator, it’s necessary to bleed the air. Please contact distributor.
The accumulator is fixed in control piping. The accumulator is a device being used to store pressure. With
this accumulator equipped, you are allowed to operate controlling piping in a short time, even if engine
stops. Therefore, work equipments could be lowered under their own weight by means of control lever.
Joint Type Torque (N·m)
Nut (HEX 19mm) 12-15
Nut (HEX 22-24mm) 20-25
Nut (HEX 27mm) 30-35
Bolt with flange (M6) 4-7
Bolt with flange (M8) 13-19