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ウォーターヒーター Main Multipoint BFのPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。Main Multipoint BF 20 ページ。 Gas fired balanced flue water heater

Fig. 19

Fig. 20

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13.3

Main Burner

Disconnect the pilot gas pipe at the gas valve.

Disconnect the pilot gas pipe from the pilot burner and

remove from the appliance complete with seal. Take care

not to lose the pilot injector.

Remove the two screws retaining the pilot bracket and

lift complete assembly clear.

Disconnect the union fittings at either end of the pressure

test pipe located to the left hand side of the burner.

Remove and retain the fibre washer.

Remove the pressure test pipe.

Lift and rotate the front edge of the burner backward

through 180 degrees. With the burner oriented

horizontally and upside down, withdraw forward beneath

the combustion chamber skirt. (fig. 19).

Inspect and clean the injectors if necessary.

Inspect and clean the main burner bars if necessary.

13.4

Re-assembling the Appliance

Re-assemble the appliance in reverse order ensuring the

following:

1. The flue hood outlet duct correctly enters the flue

terminal duct and the flue hood is fully seated against

the top of the heat exchanger.

2. The washer in the main gas line union connection

is correctly located.

3. The seals around the igniter cable/thermocouple

and pilot gas pipe are correctly seated in the

combustion chamber base and the pilot injector has

been fitted. (fig. 20).

Turn on the gas supply at the main gas service cock and

check for gas soundness BS 6891 while the appliance

is running.

Re-commission the appliance as detailed in Section 12.