11-5. In Case of Compressor Malfunction
CAUTION
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. 
See
11-5-1. 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 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 R410A. Also do not use oxygen or any flammable gas.
(4) Evacuation
Use a solenoid
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 0.883 cu.ft./min. and ultimate vacuum pressure rate of 50 micron Hg.
Standard time for evacuation
(1)Recover refrigerant
OK
(2)Replace compressor
OK
(3)Check for sealing
OK
(4)Evacuation
OK
(5) Recharge
Length of tubing | Less than 33 ft. (10 m) | More than 33 ft. (10 m) |
Evacuation time | More than 10 minutes | More than 15 minutes |
50