Argoclima AER522SCL3 Manual de servicio descargar pdf (Pagina 59)

9-5. In case of compressor malfunction

●

Should the compressor malfunction, be sure to replace compressor as quickly as

possible.

●

Use only the tools indicated exclusively for R407C.

➞

See "10-3. Tools specifically

for R407C".

9-5-1.Procedure for replacing compressor

(1) Recovering refrigerant

• Any remaining refrigerant inside the unit should not be

released to the atmosphere, but recovered using the

refrigerant recovery unit for R407C.

• Do not reuse the recovered refrigerant, since will

contain impurities.

(2) Replacing compressor

• Soon after removing pinched pipes of both discharge

and suction tubes of the new compressor, replace it

quickly.

(3) Checking for sealing

• Use nitrogen gas for the pressurized gas, and never

use a refrigerant other than R407C. Also do not use

oxygen or any flammable gas.

(4) Evacuation

•

Use a solenoid valve-installed vacuum pump

that even if power is cut off in the middle of evacuation

of air due to a power interruption, the valve will

prevent the pump oil from flowing back.

• The equipment may be damaged if moisture remains

in the tubing, thus carry out the evacuation thoroughly.

• When using a vacuum pump with exhaust air volume

more than 25L/min. and ultimate vacuum pressure

rate of 0.05Torr:

CAUTION

(1). Recovering refrigerant

(2). Replacing compressor

(3). Checking for sealing

(4). Evacuation

(5). Recharging

Standard time of evacuation

Length of tubing Less than 10 m More than 10 m

Time More than 10 min. More than 15 min.

1 2 ... 54 55 56 57 58 59 60 61 62 63 64 ... 81 82

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Argoclima AER522SCL3 Manual de servicio Pagina 59

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