Bosch Greenstar 12i Service Manual download pdf (Page 54)

SERVICE AND SPARES

6 720 644 743b (2011/08)

6.8.9 ELECTRODE ASSEMBLY AND BURNER

Refer to figure 98.

B Disconnect spark electrodes and flame sensor

connection.

B Remove clamping plate.

1. Remove spark/flame electrode assembly from heat

exchanger.

2. Remove the seal from the top of the heat exchanger.

3. Remove the burner.

B Replace new burner in correct position.

B Ensure that burner tabs, as shown in figure 98, fit

correctly their respective locations.

B Ensure that the seal is fitted.

B Replace the clamping plate.

Fig. 98 Electrode assembly and burner

6.8.10 HEAT EXCHANGER

B Isolate flow and return valves then drain the boiler.

B Remove syphon.

Refer to figure 99.

1. Remove the clip from plastic elbow on the flow pipe.

2. Pull flow pipe away from heat exchanger.

Fig. 99 Flow pipe removal

Refer to figure 100

1. Remove the three screws securing the turret to the

top of the boiler.

2. Turn the upper exhaust connector clockwise to

release from the hook.

3. Pull the upper exhaust connector down.

Fig. 100 Upper exhaust assembly

NOTICE: Heat exchanger seal

B If the joint between the Air/Gas manifold

and heat exchanger is disturbed sealing

gasket must be replaced.

B After re-assembly the combustion must

be checked using the procedure in the

section 6.6 “Setting the Air/Gas ratio”.

CAUTION: Clamping plate

B Ensure that the clamping plate is firmly

tightened down on top of the heat

exchanger.

6720643895-61.1Wo

6720643895-82.1Wo

6720643895-114.1Wo

1 2 ... 49 50 51 52 53 54 55 56 57 58 59 ... 71 72

Comments to this Manuals

No comments

Bosch Greenstar 12i Service Manual Page 54

Comments to this Manuals

Related products and manuals for Water heaters & boilers Bosch Greenstar 12i