Igema BA14, Сборка и руководство по эксплуатации

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11. Maintenance
Before carrying out maintenance works or a chemical cleaning of the
boiler, close shutoff valves of the unit.
Ideally insert blind flanges on the flange connection of the boiler studs.
Check state of the unit during boiler revision, especially float (12), float
device (11, 12) with transmitter magnet (3), magnetic switch (2) and
corresponding shutoff devices.
A deformed float rod impairs the function.
11.1 Opening of standpipe
For disassembling, the plant must be pressureless!
Wait until the unit has cooled!
•
Close valves (W+D) (see sketch chapter 5).
•
Open drain valve (14) and drain unit.
•
Caution during disassembly! Residual medium may escape and further evaporation is
possible.
•
Unfasten bolting (5, 6).
•
Remove upper part (7) upwards. Observe that the float rod (11) is not deformed.
11.2 Closing of standpipe
•
Check sealing surfaces of flanges.
•
Mount upper part of the unit with installed float device using a new sealing (8). Observe
that the float rod (11) is not deformed.
•
Tighten bolting (5, 6) in several steps using successively opposite diagonal tightening
until the tightening torque Md
max
indicated in the table of chapter 10.4 is reached.
•
Carry out commissioning (see chapter 8).
Vorsicht
Gefahr