Main Multipoint BF Инструкции по эксплуатации, установке и обслуживанию - Страница 16
Просмотреть онлайн или скачать pdf Инструкции по эксплуатации, установке и обслуживанию для Водонагреватель Main Multipoint BF. Main Multipoint BF 20 страниц. Gas fired balanced flue water heater
Печатать страницу
16
14. Replacement of Parts
Any servicing or parts replacement must be carried out by a
competent person. Use only genuine Manufacturer's Parts.
Before commencing servicing or parts replacement turn off
the gas supply at the main gas isolation valve and ensure
that the appliance is cool.
14. 1
Pilot Burner / Injector
Disconnect the pilot gas pipe and thermocouple at the
gas valve and pull off the red cable from the igniter unit.
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. inspect and replace the
injector if necessary.
Remove the two screws retaining the pilot bracket and
lift the complete assembly clear complete with the red
seal.
Pull off the pilot filter. Undo the screw fixing the spark
electrode/ thermocouple retaining bar and lift these clear.
Replace the pilot burner/bracket and re-assemble in
reverse order. (fig. 21).
14.2
Spark Electrode / Thermocouple
Follow the instructions in Section 14. 1 and replace the
faulty component.
14.3
Main Burner
Disconnect the pilot gas pipe and thermocouple at the
gas valve and pull off the red cable from the igniter unit.
Disconnect the pilot gas pipe from the pilot burner and
remove from the appliance with seal. Take care not to
lose the pilot injector.
Remove the two screws retaining the pilot bracket and
lift the complete assembly clear.
Disconnect the union fittings at either end of the pressure
test pipe located to the left hand side of the burner.
Undo the union connection below 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. 21
Replace the burner and re-assemble in reverse order
taking care that 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. 21 and 19).
14.4
Heat Exchanger
Remove the flue hood assembly by undoing the three
retaining screws and pulling the hood out of the flue
terminal duct.
Isolate the appliance from the incoming cold water supply,
open a hot tap and drain down the appliance via the
fitted drain cock.
Undo the two retaining screws from the heat exhanger
bracket.
Disconnect the heat exchanger inlet and flow pipes at
the base of the combustion chamber.
Remove the locknuts from the heat exchanger inlet and
6 720 607 090