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9 Inspection and maintenance
Logano plus GB402 – 6 720 804 428 (2012/09)
39
9.10 Checking for leaks during operation
Start the boiler and check all gaskets for leaks under full load using a
leak detection agent.
For further leak checks of the entire gas train, see Chapter 7.15,
page 27.
9.11 Checking the ionisation current
To ensure trouble-free operation, the ionisation current at partial and full
load (and burning flame) should be at least 15 μA.
The (flame) ionisation current can be read off on the RC35 programming
unit under "SERVICE MENU DIAGNOSIS/MONITOR VALUE"
( Chapter 7.14.1, page 27).
9.12 Completing inspection and maintenance
9.12.1 Removing meters
9.12.2 Fitting sections of the casing
Fit all casing sections ( Fig. 37, page 27).
9.12.3 Confirming inspection and maintenance
Sign the inspection and maintenance report in this manual
( Chapter 9.14, page 40).
9.13 Replacing the gaskets subject to time in use
The following gaskets must be replaced after expiry of the specified time
in use.
NOTICE: Risk of system damage due to short circuit!
Cover the fan and other points at risk prior to
checking for leaks.
Never apply leak detector spray to cable entries,
plugs or electrical cables/leads. Do not allow it to drip
onto them either.
Observe the instructions for the BC10 and RC35.
Seal
Replacement after x years in use
for type of use:
Standard
1)
1) Applicable to all conventional uses of the boiler as a gas condensing boiler for
DHW and central heating.
Industrial
2)
2) Applicable to use of the boiler for industrial heat generation with constantly high
flow temperatures and burner loads, for example.
Mixture manifold gasket
(O-ring)
after
5 years
after
3 years
Cleaning cover gasket
(on the heat exchanger)
Tab. 16 Replacement according to time in use
DANGER: Risk to life through escaping gases!
Always replace the electrode block gasket when
replacing electrodes.
During every service, replace the gasket at the gas
connection flange of the gas valve.
Generally, replace damaged gaskets or ones that
appear aged.
We recommend the replacement of the electrode block
as part of the annual service.
39


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