Replacing Components According To The Service; Life - Bosch Condens 7000 F Installation And Maintenance Instructions For The Contractor

Inspection and maintenance
Fig. 60 Electrical connections on the fan (boiler rating 150-300 kW)
[1] Electrical connections on the fan, boiler rating 150-300 kW
With boiler rating 75-100 kW:
▶ Undo the union nut on the venturi (Fig. 59, [3]).
With boiler rating 150-300 kW:
▶ Unscrew the mixture flange by removing the 4 nuts on the venturi
( Fig. 61, [1]).
▶ Pull out burner ( Chapter 11.7, page 35).
▶ Unscrew the fan by removing the 4 nuts on the mixture manifold
( Fig. 61, [2]).
2
1
Fig. 61 Removing the fan (boiler rating 150-300 kW)
[1] Hexagon nuts (4x) on the venturi
[2] Hexagon nuts (4x) on the mixture manifold
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11.11.3 Replacing components according to the service life
The following components must be replaced after expiry of the specified
service life.
Component
1
Mixture manifold gasket
(O-ring)
Heat exchanger cleaning
cover gasket
Gasket of condensation
catch pan cleaning cover
Fan including gaskets
Air/gas ratio control valve
0010012578-001
including gaskets
Flue gas pressure limiter
Differential pressure
switch
Table 14 Replacement according to service life
▶ Document replacement of components in the maintenance protocol.
DANGER:
Danger to life through escaping gases!
▶ Always replace the electrode block gasket when replacing electrodes.
▶ Generally, replace damaged gaskets or ones that appear aged.
We recommend replacing the electrode block as part of annual
maintenance.
0010012558-001
Replace according to specification,
depending on what occurs first
Replace after Replace after y
service life of x boiler starts
years
5
5
5
10
10 500000
or following detection of fault by valve
testing system
10
10 250000
Condens 7000 F – 6720871560 (2019/11)
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