Part 11: Servicing Parts And Replacement; To Replace The Burner Plaques; To Remove The Pilot Unit - Valor COSYFLAME TURBOCHIM 528 Installer's Manual

PART 11: SERVICING PARTS AND REPLACEMENT

• Always turn off the gas and isolate the electric supply before commencing any servicing
and make sure that the appliance is cold. (The inlet elbow for this appliance
incorporates an isolating valve).
•
Check that the appliance is clean and that soot or debris is not blocking the gaps
between the coals causing an imperfect flame.
•
Check that soot or debris is not impairing the electrode spark or pilot burner.
•
Check that soot or debris is not blocking any of the slots in the main burner.
•
Remove any lint from the components
•
After servicing, make sure that the ceramic fireback and coals are replaced correctly
as described in the installation instructions.
• Always test for gas soundness and spillage after servicing the appliance and check
operation of all controls. (Do not use leak detection sprays on this appliance. Sprays
may affect the operation of electrical components. Keep all liquid detection fluids clear
of electrical components.)

To replace the burner plaques

• Remove the 9 loose coals, front base coal, rear base
coal and ceramic back wall. The plaques can be
then be removed as follows without removing the
front surround or front casting.
• Remove the plaques clamping strips by detaching 6
screws shown in figure 45.
• Remove the plaques, centre gasket and bottom
gasket.
• Fit a new bottom gasket.
• Place the new left hand plaque in position. The left
side of the plaque must touch the inside edge of the
retaining flange at the left side of the burner well.
• Place the new right hand plaque in position. Fit a
new centre gasket between the plaques. If there is any play between the plaques and
the end retaining flanges, push the plaques and gasket firmly to the left squeezing
the gasket between the two plaques. Any gap should be between the right side of
the plaque and the right side retaining flange.
• Fit the front and rear plaque clamping strips. Make sure that the plaques are as far to
the left as possible. It is important that the left side plaque is accurately
positioned so that it has the correct relationship to the pilot. Fully tighten
the clamping strips.
• Refit the ceramic fuel effects as described in part 8 of this manual.

To Remove The Pilot Unit

• Remove the 9 loose coals, front base coal, rear base coal and ceramic back wall.
• Remove the front cover castings.
• Support the inlet isolating elbow to avoid straining the pipework and disconnect
the appliance from the elbow.
• Detach the burner unit from the fire box (see following section) Carefully lift the
burner unit forward making sure that the unit does not snag on any leads. Rest the
burner on its front face to allow access to the pilot and gas tap.
• Disconnect the electrode lead from tab underneath the electrode.
• Undo the thermocouple nut at the gas tap.
• Disconnect the pilot pipe from the pilot unit elbow.
• Detach the pilot unit from the burner unit by removing two screws (see figure 46).
Lift the pilot unit clear.
• Refit in the reverse order. Make sure no leads are trapped.
Fig. 45
Fig. 46
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