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8. Commissioning
Commissioning and maintenance must be carried out by qualified
personnel! If no sufficiently qualified person can be employed, IGEMA
GmbH can be commissioned to carry out the commissioning. In principle
IGEMA GmbH recommends commissioning the indicator at the same time
as the boiler (item 8.2). If it is not possible to commission the indicator
according to item 8.2, the indicator can be commissioned with the boiler under pressure
and temperature (item 8.3)
All liquid level gauges are subjected to 100% pressure testing before delivery. In individual
cases, material settling may occur during transport, longer storage or during assembly. All
screw connections must therefore be checked for tight fit and appropriate torque (see following
text).
8.1 Before commissioning
Before commissioning, the indicator must be checked for damage and all screw connections
must be checked for tightening torque
Md
max
according to the table (see item 9.6)!
Tightening sequence to be observed for the cover rails is presented
below!
Non-compliance may result in leakage, glass and mica break.
The following tightening sequence must be ensured at the cover rails (drawing below). Non-
compliance can lead to leaks, which are not covered by the warranty. Tighten the screw
connection to the tightening torque
Md
max.
according to the table (see item 9.6).
uneven number
even number
screw rows
At the latest 24 h after commissioning, the screw connections must be checked and tightened
max.
again with the torques specified above in the listed tightening sequence
Md
max
(see item
9.6)! This should be repeated until the bolts permanently hold the specified torques.
Danger
Caution
