III - 51
3
SM830052
Service Procedures
6-1. Diagnosing and verifying compressor breakdowns (See the items for Symp-
tom and inspection location according to the alarm messages P2, P7, H2.)
6-2. Judgment of 2 compressors replacement
6. Compressor Defects
* 1. Judgment with resistance value
See the winding resistance in the product specifica-
tions.
* 2. Loosen the oil balancing pipe flare nut section and
remove.
If the motor is burnt out , be sure to clean the inside of
the refrigerant tubing.
Motor burnt out
Remove the oil for color
check.
Judgment of compressor
breakdown
Replacement of one
broken compressor
Replacement of two
broken compressors
Compressor delivery
Replacement
(See the “Operation procedure
for replacing the compressor”.)
0331_M_I
Yes
No
*1
*2
Yes (4 or more)
No (Under 4)
Color check
4
[
*ASTM COLOR
*American Standard Testing Method
NOTE