Bosch DANESMOOR UTILITY 32-50 Instruction Manual download pdf (Page 42)

J

I

L

I

K

L

FRONT

INSPECTION AND SERVICE

Clean the boiler:

Manifold access:

Release screws (E) to remove the flue manifold

access cover (F) and clear any debris.

Check the flue system and clean if necessary.

Remove the baffle retainer and baffles

(H) from the secondary heat exchanger.

SLOTS DOUBLE SINGLE

BAFFLES BAFFLES

32/50kW* 25 10 N/A

50/70kW 31 15 1

*Five of the slots do not have baffles.

Check and clean the secondary heat

exchanger surfaces.

NOTE: Do not use wire brushes and cleaning

agents to clean the stainless steel secondary

heat exchanger components.

Check the condensate route (G) is clear.

The condensate trap (K) should be removed

and checked for debris.

Release the pipe locking tab ( I ) and

disconnect the flexible pipe ( J ) from the top

of the trap and move the flexible pipe up

away from the trap

Release the trap locking tab ( L ) and move the

trap up and back to remove from its mountings.

Clean the trap by flushing with water.

Check the O ring seals and replace if

necessary, grease the seals with a solvent

free grease.

Refit the trap making sure that the locking

tabs are locked in place.

Pour 500ml of water into drain (G) to refill

the condensate trap.

Clean the secondary heat exchanger baffles

(H) if necessary and refit correctly.

 Refit the baffle retainer.

Check the seal on the manifold access cover

(F) and replace if necessary.

Refit the flue manifold access cover (F)

and secure with screws (E).

Combustion chamber:

Release the M10 retaining nuts and washers (B)

and remove combustion chamber access door (A).

Check the fibreglass rope seal on the

combustion chamber access door (A) and

replace if necessary.

Remove and check the baffle retainers (D).

Remove the baffles (C), clean and check the

condition of the baffles and the acoustic

insulation. Replace any baffles or insulation

pads considered to be badly corroded/degraded.

Thoroughly clean all of the heat exchanger

surfaces using a suitable brush and clear all

loose debris from the combustion chamber.

Check the condition of the combustion

chamber access door insulation. If the

insulation is damaged the door assembly

must be replaced.

Refit the items in reverse order ensure the

baffles (M) and baffle retainers (L) are

correctly fitted for the boiler output as shown

in the plan view opposite.

Refit combustion chamber door (K).

IMPORTANT: Secure with nuts and

washers ( B ) and tighten, using the

sequence shown, until the chamber door is

firmly secured, do not over tighten the nuts.

FRONT

INSPECTION AND SERVICE

INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER GREENSTAR UTILITY 32/50 & 50/708 716

109 711B 07.2010

42

SERVICING

& SPARES

8 716 109 711 b 07.10 14/7/10 09:59 Page 42

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