9
Inspection and maintenance
Logano plus GB402 - Subject to technical modifications!
51
9.9.5
Fitting the ventilation air unit
B
Push on the ventilation air hose together with the
connector onto the ventilation air collector and secure
with a hose clip at the upper adaptor.
9.10 Checking for leaks during operation
B
Start the boiler and check all gaskets for leaks under
full load using a leak detection agent.
B
For further leak checks of the entire gas train, see
Chapter 7.15, page 36.
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 ionisation current (flame current) can be read off on
the RC35 programming unit at “SERVICE MENU
DIAGNOSIS/MONITOR VALUE” (
Æ
Chapter 7.14.1).
9.12
Completing inspection and
maintenance
9.12.1 Removing meters
9.12.2 Installing casing parts
B
Fit the casing parts (
Æ
Fig. 37, page 37).
9.12.3 Confirming inspection and service
B
Sign the inspection and maintenance report in this
manual (
Æ
Chapter 9.14).
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:
System damage through
contaminated air.
B
Prior to fitting the ventilation air hose,
check the ventilation air grille (integrated
into the lower hose adaptor) for
contamination and clean if required.
NOTICE:
Risk of system damage due to
short circuit.
B
Cover the fan and other areas at risk prior
to commencing the leak detection.
B
Never spray the leak detection agent on
cable entries, plugs or cables. Do not allow
it to drip onto them either.
Observe the instructions for the BC10 and
RC35.
Gasket
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. 15 Replacement according to time in use
WARNING:
Risk to life from escaping gases!
B
Always replace the electrode block gasket
when replacing electrodes.
B
During every service, replace the gasket at
the gas connection flange of the gas valve.
B
Generally, replace damaged gaskets or
ones that appear aged.
We recommend the replacement of the
electrode block as part of the annual service.
