Bosch Greenstar combi 151 p - Burner Servicing; Heat Exchanger Block Inspection and Cleaning

Inspection and maintenance | 51
6720872361 (2017/04)Greenstar combi 100 p / 151 p
14.1.5 Burner servicing
DANGER:
Fire danger!
▶ The burner may be operated only while installed in a wall-mounted
gas condensing boiler.
▶ Remove burner lid (steps 1 - 4).
Fig. 71 Removing the burner cover
▶ Remove burner and clean its components.
Fig. 72 Burner
▶ Reinstall burner in reverse order, including a new gasket if necessary.
▶ Adjust the gas-air ratio ( page 46).
14.1.6 Heat exchanger block inspection and cleaning
NOTICE:
Damage to the coating of the heat exchanger.
▶ Cleaning of the heat exchanger should not be necessary until five
years after the initial commissioning.
▶ Only use a Bosch cleaning blade and Bosch cleaning brush.
▶ Only clean heat exchanger in case if soiling is clearly visible.
▶ Remove the inspection cover ( page 8) and any sheet metal insert
below, if installed.
▶ Determine degree of soiling of the heat exchanger through visual
inspection.
If mechanical cleaning is required:
To clean of the heat exchanger, use Bosch burner gaskets, cleaning brush
kit and cleaning blade, all of which are available as spare parts.
▶ Remove the condensate trap (steps 1 and 2) and place a suitable
container underneath.
Fig. 73 Removing the condensate trap
1
2
4
6 720 641 933-95.1o
3
7 181 465 330-08.2R
6 720 641 933-93.1o
1
2