Worcester Greenstar Ri Manuel de service télécharger pdf (Page 44)

REPLACEMENT OF PARTS

12. Air / gas manifold and fan

assembly

 Remove electrical connector from fan.

 Remove wire clip from gas valve outlet then

pull gas adjustment assembly free from plastic

connector and pull clear of case. See 6.1.

12.1

Undo and remove securing nut (A)from the

top of the heat exchanger.

12.2

Remove stainless steel viewing mirror (B).

12.3

Rotate fan and air/gas manifold assembly

(shaded) around the top of the heat

exchanger until the lug on the air/gas

manifold is visible.

 Lift up assembly and remove from boiler.

13. Pressure switch

13.1

Remove electrical connections (C).

13.2

Slacken top retaining screw and remove

bottom screw. (D).

13.3

Remove tube (E).

13.4

Remove 2 screws (F)retaining pressure

switch to bracket.

 Refit new pressure switch to bracket.

The following components require

the air / gas manifold and fan

assembly to be removed:

Pressure switch

Fan

Electrode assembly

Burner

Heat exchanger

12.1

12.2

13.4

13.313.213.1

12.3

IMPORTANT: ENSURE TUBE IS

REFITTED TO PRESSURE SWITCH

REPLACEMENT OF PARTS

INSTALLATION & SERVICING INSTRUCTIONS FOR WORCESTER BOSCH GREENSTAR Ri

8 716 109 699a (05/05)

SERVICING

& SPARES

IMPORTANT: IF THE JOINT

BETWEEN THE AIR/GAS MANIFOLD

AND THE HEAT EXCHANGER IS

DISTURBED THE SEALING GASKET

MUST BE REPLACED.

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Worcester Greenstar Ri Manuel de service Page 44

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