Ambirad COBRA CB40 Installation, Operation, Maintenance And Service Manual - Page 12
Browse online or download pdf Installation, Operation, Maintenance And Service Manual for Gas Heater Ambirad COBRA CB40. Ambirad COBRA CB40 19 pages. Gas fired radiant tube heaters
Print Page15Replacement and servicing of components in the burner assembly
Figure 17 Cobra burner assembly
Burner Head
Ignitor Assembly
Burner Extrusion
Health and safety
Isolate gas and electrical supplies before
carrying out any repair work. Always test
for gas soundness with a suitable leak
detection fluid.
Replacement parts
Any spare part components that are not
approved by Ambi-Rad could invalidate
the approval of the appliance and
operation of the warranty.
It is recommended that the burner
assembly is removed from the product to
facilitate replacement of the following
components:
Burner head
Injector
Gas valve
Electrode assembly
Electronic sequence controller
Vacuum switch
To remove the burner please see section
13.
With the burner assembly removed from
the product it is now possible to replace
components as follows;
10
Electronic Sequence
Injector
Figure 18
Remove the four screws securing the
burner spigot to the burner box. Lift off
the burner assembly and gasket, checking
the gasket for signs of splitting, and
replace as required.
Figure 19
Lift off burner assembly carefully as
electrode leads and vacuum tubes are still
attached.
C o n t r o l l e r
Figure 20
Slacken with a spanner, then unscrew the
injector from its carrier. If servicing the
injector, blow through orifice, never drill or
broach out or use wire to clean. Replace if
blocked or damaged.
Re-fit components in reverse order of
removal.
Mains input
Gas Va l v e
Va c u u m
s w i t c h