Lubricant Adjusting Procedure For Compressor Replacement

LUBRICANT


Lubricant Adjusting Procedure for Compressor Replacement

1. Drain lubricant from removed compressor and measure lubricant amount.





1. Drain lubricant from high-pressure port (A) and low-pressure port (B) while rotating magnet clutch.
2. Measure total amount of lubricant that is drained from removed compressor.





2. Drain lubricant from a new compressor that is calculated according to the following conditions.

Amount to be drained (A) [m lambda (Imp fl oz.)] = F - (D + S + R + alfa)
F : Lubricant amount that a new compressor contains [210 (7.1)]
D : Lubricant amount that is drained from removed compressor
S : Lubricant amount that remains inside of removed compressor [20 (0.7)]
R : Lubricant amount to be added according to components that are removed except compressor
A : Lubricant amount that is recycled together with refrigerant during recycle operation

CAUTION:
If lubricant amount that is drained from removed compressor is less than 60 m (2.1 Imp fl oz.), perform calculation by setting "D" as 40 m (1.4 Imp fl oz.).





Example: Lubricant amount to be drained from a new compressor when replacing compressor and liquid tank [m (Imp fl oz.)] [D = 60 (2.1), A = 5 (0.2)]
210 (7.2) - [60 (1.6) + 20 (0.7) + 5 (0.2) + 5 (0.2)] = 120 (4.2)
3. Install compressor and check the operation.