Briefing The Customer; Servicing; Servicing The Burner; Pilot Assembly - Lennox Hearth Products Radium-NG Assembly, Installation And Operation Instructions

16.0 BRIEFING THE CUSTOMER

WARNING
DO NOT ADD LOGS OR ORNAMENTS SUCH AS PINE
CONES, VERMICULITE OR ROCK WOOL. USING
THESE ADDED ITEMS CAN CAUSE SOOTING.
After commissioning the appliance, the customer should be instructed
on the safe use of the appliance and the need for regular servicing.
Frequency of service depends on usage, but MUST be carried out at
least once annually.
Advise that cleaning of the fireplace may be achieved when the
fireplace is cold using a damp cloth and mild detergent on most
surfaces.
Advise that the fireplace will emit an odor for a time after initial
commissioning and that extra ventilation may be needed during this
time. A periodic visual check of the pilot flame and the burner flame
should be carried out. (Refer to figure 12).

17.0 SERVICING

A suggested procedure for servicing is detailed as follows;
Turn off the fireplace at the the gas supply. Ensure that the fireplace is
fully cold before attempting service.
1. Lay out the dustsheet and tools.
2. Remove the front glass facia as described in section 15.0,
only in reverse.
3. Remove the glass door assembly (4 screws) and clean
carefully. Remove the valve cover plate (4 screws).
4. Inspect the burner and the catalysts and clean if necessary
with a soft brush.
5. Disconnect the gas supply.
6. Undo the four screws retaining the burner support brackets to
the base and rear of the firebox.
7. Remove the burner unit, strip off the burner pipes and clean
thoroughly.
8. Clean the in-line restrictor, pilot assembly and the burner
tube. Do not attempt to remove the pilot injector as this can
cause damage.
9. Re-assemble components.
10. Turn on the gas supply and leak test. Check pilot and
burner for good ignition.
11. Refit the valve cover and retaining screws.
12. Refit the glass door assembly.
13. Refit the facia Refitting as described in section 15.0.
14. Check the purpose provided ventilation is unobstructed.
15. Light the fire and test setting pressures.
16. Check safe operation of the appliance.
For specific servicing instructions, see relevant sections.

18.0 SERVICING THE BURNER

ANY CHANGE TO THIS HEATER OR ITS CONTROLS
CAN BE DANGEROUS.
First, remove the front glass facia as described in Section 15.0 only in
reverse, remove the valve cover (4 screws) and disconnect the gas
connection inside appliance. The gas connections to the gas valve can
now be released. Undo the four screws retaining the burner brackets to
the base and rear of the firebox. The burner may now be removed.
Remove the pilot and main burner pipes and blow through to dislodge
any debris. Now remove the in line restrictor and blow through to make
sure it is entirely clear.
Unclip the pilot lint gauze and clean with a soft brush. Clean the exterior
of the pilot assembly with a soft brush and blow through the flame ports
on the pilot head. Check the aeration holes are free from lint or dirt. The
pilot assembly can be removed if required by disconnecting the
electrode HT lead, gas pipe, thermocouple lead and unscrewing the
mounting screws and lifting away. The pilot assembly is a non-
serviceable item and should not be taken apart. Aeration holes must be
absolutely clear internally for proper operation. NEVER MODIFY OR
BEND THE THERMOCOUPLE TO MAKE THE PILOT STAY ALIGHT.
Modifications are dangerous and can have serious unseen effects on
safety. If the pilot will not stay lit there is a problem with dirt, the gas
supply to it, or the thermocouple needs replacement.
The gas valve is a non-serviceable item. If this needs replacement,
remove the cover plate then the securing screw holding the valve
bracket in place, remove all pipe unions, and the complete valve.

19.0 PILOT ASSEMBLY

NO ADJUSTMENTS ARE TO BE MADE TO THE ODS
PILOT SYSTEM. TAMPERING WITH THIS SYSTEM
CAN BE EXTREMELY HAZARDOUS.
Replacement must be original manufacturers parts.
Re-assemble in the reverse of removal. Ensure setting pressures are
as stated in Section 3; Appliance Data.
Remove the glass facia, glass panel and burner unit (as per servicing
section), lint arrestor and pilot unit by using a screwdriver to remove the
retaining screws.
Clean the pilot assembly with a soft brush and blow through. Check the
aeration holes are free of any dirt or lint. Clean thoroughly internally,
the connection can be removed from the base of the pilot unit using two
spanners to make cleaning easier. Do not damage or try to dismantle
the pilot injector. The unit is factory set and the only check necessary is
to ensure the spark gap is correct. See specifications for gas setting.
NEVER MODIFY OR BEND THE THERMOCOUPLE TO MAKE THE
PILOT STAY ALIGHT. If the pilot will not stay lit there is a problem with
dirt, the gas supply, or the thermocouple needs replacement.
Modifications are dangerous and can have a serious unseen effect on
safety and therefore MUST not be done. Replacements must be origi-
nal manufacturers parts. Re-assemble in the reverse of removal.
Ensure setting pressures are as stated in Section 3; Appliance Data.
8
WARNING
WARNING