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Worcester Manuals
Boiler
benchmark ZWB 7-25 R 25 HE
Design, installation and servicing instructions
Operating The Appliance; Preparation - Worcester benchmark ZWB 7-25 R 25 HE Design, Installation And Servicing Instructions
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Operating the Appliance
3
Operating the Appliance
3.1
Preparation
Turn on the gas cock (172).
B Press in the handle and turn it anti-clockwise as far as the stop
(when handle is in line with direction of flow, the cock is open).
Central heating system valves (170)
B Using a spanner, turn square nut until groove is in line with
direction of flow (see detail).
Groove at right angles to direction of flow = off.
Cold water inlet valve (173)
B Turn handle so that it is in line with direction of flow.
When handle is at right angles to direction of flow, the valve is
closed.
170
10
173
172
6 720 610 577-02.1O
6 720 610 577 GB (03.11)
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This manual is also suitable for:
Benchmark zwb 7-30 r 30 he
47 311 77
47 311 78
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