Potterton Suprima 100L, Инструкция по установке и обслуживанию

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Supplied By www.heating spares.co Tel. 0161 620 6677
Publication No. 5102696 28
Gas Pressure
adjuster
To Service the Boiler & Component Replacement
Fig. 20
4.3.10 Gas Valve 100 model
Gain General Access - See 4.1
1. Turn gas cock OFF, see ig.20.
Pull off the electrical connector at the valve.
2. Remove the gas cock by unscrewing the four long
hexagonal head screws from the top of the valve.
3. Remove the burner - See 4.3.8.
4. Remove the two screws securing the side and rear
insulation assembly to the front of the chassis and
remove assembly.
5. Remove the three screws securing the gas valve
manifold assembly to the chassis and remove the
complete assembly.
6. Remove the four screws securing the gas manifold
to the gas valve.
7. Use a new 'O' ring and refit the manifold to the new
gas valve.
8. Re-assemble in reverse order, use a new 'O' ring in
the gas cock and a new injector manifold gasket.
9. Check that the burner pressure is in accordance with
the information on the boiler data badge. If adjustment
is required, turn the pressure adjusting screw anti -
clockwise to increase pressure or clockwise to
decrease.