ARI Armaturen CONA M PN40 EN - Manual (Page 10)

Page 10 Rev. 0040804002 3209
Operating and installation instructions
CONA
®
M - Thermostatic steam traps
8.0 Troubleshooting
In the event of malfunction or faulty operating performance check that the installation and
adjustment work has been carried out and completed in accordance with these Operating
Instructions.
If malfunctions cannot be eliminate with the help of the following table
“9.0 Troubleshooting table”, the supplier or manufacturer should be consulted.
9.0 Troubleshooting table
-
ATTENTION !
- It is essential that the safety regulations are observed when identifying faults.
ATTENTION !
- refer to item 10.0 and 11.0 prior to dismantling and repair work!
- refer to item 6.0 before restarting the plant!
Fault Possible cause Corrective measures
No flow Installed in wrong flow direction. Fit valve in direction of flow arrow
Flange covers not removed Remove flange covers
Little flow Strainer clogged (Pos. 2) Clean / replace strainer;
refer to item 7.1
Piping system clogged Check piping system
Wrong controller size choosen Correct selection acc. to flow diagram
Changed upstream pressure or back
pressure operating conditions Correct selection acc. to flow diagram
No closure, or internal
leakage Diaphragm capsule (Pos. 4) clogged Clean strainer and diaphragm capsule;
refer to item 7.1
Diaphragm capsule worn out Replace diaphragm capsule;
refer to item 7.1
Seat (Pos. 3) incorrectly screwed into
body Check seal face between body and seat,
tighten seat correctly; refer to item 7.3
External leakage Sealing cap (Pos. 6), top part of body
(Pos. 1
2) or cover with hex. nut (Pos. 28)
not properly tightened
Tighten; refer to item 7.3
Seal (Pos. 26) defective Replace seal; see 7.1