Valor 474 Valentia Installation And Owner's Manual page 21

NOTE: If the fire had been previously installed in a fire surround with a restricted
access on the right side then it will be necessary to remove the fire from the wall to
remove the burner assembly as previously detailed. Alternatively it is possible under
these circumstances to remove the control/pipework assembly from the burner first
and to withdraw the burner through the front firebox opening. After removing the
burner assembly from the fire detach the feed pipes from the gas tap to the injectors
at the injector end. By withdrawing the injectors from the burner mounting plate the
main burner becomes free and can be exchanged. When fitting the replacement
burner transfer the aeration cover from the old burner. Re-assemble into the fire
following the reverse procedure to dis-assembly.
9.4. MAIN BURNER INJECTORS
After removing the outer case (1. above) access to the injectors is achieved by first
removing the respective injector feed pipe then withdrawing the injector. Only
withdraw one injector at a time. The upper injector is size 180 and feeds gas to the
centre burner section and the lower injector is size 160 and feeds gas to the outer
burner sections.
9.5. PILOT INJECTOR (SIT No. 34)
(a) Release the tubing nuts at each end of the gas supply tube and remove the
tube taking care not to lose the pellet filter in the pilot outlet of the gas tap. The
injector is held captive by the olive in the burner.
(b) Replace the injector with a new one. Re-connect the supply tube and tighten
the nuts.
9.6. PILOT FILTER
Proceed as in 5(a) above to remove the gas supply tube. Remove the filter in the pilot
outlet of the gas tap. Replace with a new filter and re-assemble.
9.7. THERMOCOUPLE
(a) Release the tubing nuts at each end of the thermocouple
and remove.
(b) Fit a new thermocouple and tighten the nuts.
9.8. SPARK ELECTRODE
(a) Undo the tubing nut of the thermocouple at the pilot end
and release the thermocouple.
(b) Disconnect the ignition lead at the electrode.
(c) Undo the tubing nut of the electrode and remove the electrode.
(d) Replace with a new electrode and re-assemble in the reverse
manner. Do not over tighten the nut.
9.9. PILOT BURNER
Release pilot feed tube, thermocouple and spark electrode as detailed in 5, 7 and 8
above. Remove 4 screws securing the pilot burner to the support plate and withdraw
the pilot burner. Transfer gasket from the old pilot to the new pilot and fit the new
pilot. Re-assemble the remaining components in the reverse manner to removal.
©
GDC Group Ltd. 2014
INSTALLER GUIDE
Page 21