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v.
vi.
vii.
viii
.
2.10
TROUBLESHOOTING TABLE GRASSO RECIPROCATING COMPRESSORS
The troubleshooting table shown overleaf may be helpful to quickly trace and
remedy failures that interfere with the proper operation of the compressor. It is
emphatically pointed out that the cause of a failure must often be sought in the
refrigeration installation itself. Therefore, it is necessary besides this table also to
consult the plant manual.
0089288_imm_v_english_19
07.04.2021
TROUBLESHOOTING TABLE GRASSO RECIPROCATING COMPRESSORS
Slowly open suction stop valve.
Open the stop valve in the oil return line of the oil separator (if present).
For two stage compressor only;
vii.a
Two-stage system A/B: open liquid supply to interstage cooler.
vii.b
Two-stage system C/D: refer to the plant manual.
If a Self-Limiting Automatic Purger is not installed, purge the refrigerating
system (refer to the plant manual).
INSPECTION AND TROUBLE SHOOTING
39
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Table of Contents
Troubleshooting
