Manual Part No: 932004-01
MD Gas Steamer
- 17 –
Manual Rev No
:
2
SERVICE AND MAINTENANCE (cont.)
Multifunctional Control Valve:
1)
Turn off gas supply.
2)
Disconnect pilot pipe from valve.
3)
Disconnect union fittings from valve inlet & outlet.
4)
Transfer gas fittings to new valve and re-fit in reverse order.
5)
Check for gas tightness and test (see “
TESTING
” on page 10).
Thermostat:
1)
Turn off gas supply.
2)
Unscrew vent from steamer top panel.
3)
Remove two screws from back of top panel and remove by lifting at rear and sliding forward.
4)
Remove insulation and release gland-fixing nut.
5)
Working inside the steaming compartment release the phial from its bracket and feed through
tank top.
6)
Remove thermostat by undoing its two fixing screws.
7)
Disconnect the two wires on the thermostat.
8)
Replace new part by reversing the above procedure.
Thermocouple/Thermopile:
1)
Disconnect from the multifunctional valve.
2)
Remove the three screws fastening the bottom heat shield and withdraw followed by the three
screws fixing the top heat shield.
3)
Unscrew thermocouple/thermopile and withdraw from the pilot bracket assembly.
4)
Fit new thermocouple/thermopile by reversing the above procedure.
Burner:
1)
Turn off gas supply.
2)
Remove three screws securing bottom heat shield and withdraw shield followed by the three
screws fixing the top heat shield.
3)
Disconnect pilot pipe at pilot, (taking care not to lose pilot injector) and burner feed pipe
coupling.
4)
The burner can now be withdrawn complete with pilot assembly.
5)
Re-fit burner assembly by reversing the above procedure.
