To Clean The Burner; Cleaning The Heat Exchanger; Checking The Ignition System - Bosch Condens 5000W Installation And Maintenance Instructions Manual

▶ Release the 4 snap fasteners of the burner cover.
The snap fasteners are under tension.
Fig. 54 Opening the snap fasteners
▶ Remove the gas-air unit together with the burner cover.
1.
Fig. 55 Remove the gas-air unit together with the burner cover.
11.3

To clean the burner

▶ Remove the burner gasket and replace if necessary.
Fig. 56 Removing the burner gasket
Condens 5000W – 6720813952 (2019/02)
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2.
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▶ Take off the burner.
Fig. 57 Removing the burner
▶ Check the burner and gas distributor plate for soiling and cracking.
▶ Clean the burner with compressed air or a soft brush if necessary.
11.4

Cleaning the heat exchanger

NOTICE:
Damage to wall mounted gas condensing boiler.
▶ The heat exchanger has been coated. This coating must not be
damaged.
▶ Steel brushes, abrasives or similar must therefore not be used when
cleaning the various components.
▶ Cover the ignition device.
▶ Clean the heat exchanger.
▶ Rinse the heat exchanger with water if necessary.
▶ In the case of extreme contamination, clean the heat exchanger with
TAB2.
Fig. 58 Cleaning the heat exchanger
11.5

Checking the ignition system

NOTICE:
Damage to the hot surface igniter.
The glow ignitor unit is made of breakable material.
▶ Handle with care.
Inspection and service
1.
2.
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