In Case Of Compressor Malfunction - Sanyo SAP-CRV93EHN Technical & Service Manual

Sanyo ilmalämpöpumput korjaa ja huoltaa pääkaupunkiseudulla: Jäähdytinpalvelu RefGroup Oy

CAUTION

12-5-1. 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 R410A.

Do not reuse the recovered refrigerant, since it will

contain impurities.

(2) Replacing Compressor

Soon after removing seals of both discharge and suc-

tion 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 R410A. Also do not use

oxygen or any flammable gas.

(4) Evacuation

Use a solenoid valve-installed vacuum pump so

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

of air due to a power interruption, the valve will pre-

vent 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:

Standard time for evacuation

Length of tubing

Time

Should the compressor malfunction, be sure to make the switch to a replacement

compressor as quickly as possible.

Use only the tools indicated exclusively for R410A.

Specifically for R410A."

Less than 10 meters

More than 10 minutes

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(1) Recover refrigerant

(2) Replace compressor

(3) Check for sealing

(4) Evacuation

(5) Recharge

More than 10 meters

More than 15 minutes

48

See "12-3. Tools

OK

OK

OK

OK