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7.8
Twin solenoid Control Valve
7.8.1
Remove the Ignition Control (see section 7.3) and the Burner (see section 7.5) and disconnect the gas
supply pipe from the Control Box, leaving the R - ½ nipple screwed into the Control Valve elbow flange.
Unscrew the two M4 setscrews securing the Valve Bracket to the floor of the Control Box and lift out the
Control Valve Assembly.
7.8.2
Unscrew the four M4 screws securing the elbow flange to the Control Valve inlet port and remove the
elbow flange and R - ½ nipple, complete.
7.8.3
Unscrew the four M4 screws securing the straight flange to the Control Valve outlet port and remove the
straight flange and injector fitting, complete.
7.8.4
Unscrew the two M4 screws securing the Valve Bracket to the Control Valve mounting boss and remove
the Valve Bracket.
7.8.5
After replacing the Control Valve, check the gas pressures in accordance with Section 5.3 of this manual.
IMPORTANT: TEST FOR GAS SOUNDNESS USING A SUITABLE LEAK DETECTION FLUID.
7.9
Neon Indicator
7.9.1
Disconnect the electrical leads from the Neon Indicators by gently pulling the connectors , using pliers.
7.9.2
Press the Neon Indicator out through the mounting hole in the floor of the Control Box. Remove the
spring fixing washer from the Control Box.
7.9.3
When replacing a Neon Indicator, pass it through the mounting hole in the floor of the Control Box and
press the spring fixing washer over the body of the Neon Indicator and up against the Control Box floor
panel to secure the Neon Indicator. Connect the electrical leads in accordance with the wiring diagram
shown in Section 3.3.3 Fig. 8.
7.10
Replacement Parts List
The following is a list of replacement parts, which may be required during the life of the appliance.
Part
Part Number
Part
Part Number
Gasket (Control Box)
4260132
Duplex Fan
4262259
Electrode
4260368
Air Proving Switch
4262278
Gasket (D.L. Adapter Outlet)
4260520
Neon Indicator-Red
4262280
Gasket (D.L. Adapter Inlet)
4260521
Neon Indicator-Amber
4262281
Ignition Control
4262197
Sealing Strip/Control Box door
4262409
Control Valve
4262586
Capacitor (Fan Motor)
4262522
8.
CONVERSION INSTRUCTIONS
8.1
Conversion from cat. 2H (Natural Gas) to cat 3+ (LPG).
8.1.1
Remove the Injector from the Injector Fitting (see section 7.6) and replace it with the alternative Injector
supplied (fastenings pack). Check that the size reference marked on the Injector agrees with that listed
in the Technical Data table (Section 1) for the appliance model in question.
8.1.2
Remove the pressure governor cap from the integral pressure governor of the Control Valve and screw
the adjuster clockwise up to the stop, to put the governor out of action. Replace the pressure governor
cap.
8.1.3
Affix the gas adjustment label (3+ G30/G31, 29/37mbar) supplied (fastenings pack) onto the Data Label,
adjacent to the headings "Adjusted For" and "Setting Pressure", to cover the original gas adjustment
label (2H, G20, 20mbar).
8.1.4
Carry out checks in accordance with Section 5.4 of this manual to ensure correct supply pressure relative
to the gas type being used (G30 - Butane or G31 - Propane).
