Bosch Appliances 24i junior, 28i junior manual Inspection And Service, Q Small tab, L M N

Q

Small

tab

9

L

M

N

INSPECTION AND SERVICE

9Remove burner (L). Remove top baffle (M). Remove baffle (N).

Remove the two hexagon headed screws (O) retaining the access cover (P) on the sump. Access the heat exchanger flue ways by inserting the cleaning brush (7 716 192 312) through the top access hole in the casing (Q). Clean heat exchanger flue ways (R) using the cleaning brush (7 716 192 312) removing any debris from the access point in the sump.

R

P

0

IMPORTANT: IF THE JOINT BETWEEN THE AIR/GAS MANIFOLD AND THE HEAT EXCHANGER IS DISTURBED THE SEALING GASKET MUST BE REPLACED.

Clean around sealing surface on sump and replace access cover (P). Using a suitable container to collect water from syphon connection at the base of the boiler flush heat exchanger with water.

Re-assemble ensuring that the lower baffle

(N)and the top baffle (M) are refitted correctly.

When re-fitting the burner ensure that it fits centrally within the heat exchanger and location tabs are situated in location holes. Ensure seal is replaced with new seal and is correctly fitted.

Check the syphon unit for blockage before refitting to boiler.

Reassemble and check combustion as stated in the gas conversion section. NOTE: To show the heat exchanger more clearly it has been shown external to the appliance

THE BAFFLES (N) AND (M) MUST BE REFITTED INTO THE HEAT EXCHANGER AS SHOWN IN 9. FAILURE TO DO SO MAY RESULT IN DAMAGE TO THE BOILER

SERVICING & SPARES

40

INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR 24 i junior/28 i junior 8 716 107 336b (11/05)

INSPECTION AND SERVICE