Johnson & Starley WARMCAIR C16D, Руководство пользователя

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16.3 GAINING ACCESS FOR SERVICING
16.3.1 Ensure the electrical & gas supply is isolated as needed.
16.3.2 Remove the return air filter and pull the bottom front panel off.
16.3.3 Remove the front panel by unscrewing the 4 retaining screws at top and bottom.
16.3.4 Remove the front cover.
16.4 MAIN BURNER ASSEMBLY
16.4.1 Refer to section 16.3. See Figure 19.
16.4.2 Disconnect the gas pipe at the top of the isolation valve.
16.4.3 Disconnect the electrode, igniter and earth leads from the ESYS, then remove the screw and panel on
the ESYS and remove. Disconnect the electrical connections.
16.4.4 Remove the two screws from the valve/venturi assembly and withdraw.
16.4.5 Remove the 4 nuts and washers securing the burner assembly to the heat exchanger and withdraw
the assembly, take care not to damage the internal ceramic pad.
16.4.6 Inspect the inside of the burner assembly for debris. Clean with a soft brush if necessary.
16.4.7 Inspect the gaskets and replace if necessary.
16.4.8 Inspect and clean the spark ignition and flame sensing electrode, removing any debris and oxidization.
Check the spark gap and position of the spark electrode and the positioning of the flame sensing
electrode.
16.4.9 Once reassembled re-check electrode and igniter nuts are tight.
16.4.10
Refit in reverse order ensuring a good seal is made.
16.5 IGNITION & FLAME DETECTION ELECTRODE
16.5.1 Refer to section 16.3. See Figure 19 & 20.
16.5.2 Follow 16.4.4 to remove the valve/venturi.
16.5.3 Unscrew the two nuts that retain the electrode to the
cover plate and remove the assembly.
16.5.4 Inspect and clean the electrode, removing any debris
and oxidization. If necessary use an abrasive paper
or cloth.
16.5.5 Inspect the gasket and replace if necessary during
re-assembly.
16.5.6 Repeat sequence for the flame detection electrodes
with the exception of the earth lead.
16.5.7 Refit in reverse order and tighten nuts.
FIGURE 20. ELECTRODE GAPS
FIGURE 19. MAIN BURNER ASSEMBLY REMOVAL
ESYS
PANEL
SCREW
ELECTRICAL
CONNECTIONS
BURNER
ASSEMBLY
NUTS
BURNER ARM
COMBUSTION
CHAMBER
ELECTRODE
NUTS
BURNER
ASSEMBLY NUT
COVER PLATE
GAS COCK
FLAME DETECTION ELECTRODE LEAD
IGNITION ELECTRODE LEAD
GAS VALVE
VENTURI
ESYS