Lennox Hearth FIRESTAR Merit Series - Manual (Page 2)

READ ALL ThE STEPS BEFORE STARTING ThE CONvERSION.
INSTALLER NOTICE: ThESE INSTRuCTIONS MuST BE LEFT wITh
ThE APPLIANCE.
This kit contains components required to convert this appliance
from using Natural Gas to using Propane Gas as the only fuel.
All of these components must be replaced in order for the unit to
operate safely on Propane Gas.
when installing gas components use pipe joint compound or
Teflon tape on all pipe fittings before installing (ensure propane
resistant compounds are used, do not use pipe joint compounds
on flare fittings).
INSTALLATION INSTRuCTIONS
Step 1. TuRN OFF ThE GAS SuPPLY TO ThE APPLIANCE. unplug the
power cord for the blower.
Step 2. Locate the valve behind the right side access door. Using a phil-
lips screwdriver, remove and discard the two pressure regulator
mounting screws (see Figure 3). Remove the pressure regulator
and rubber gasket. Discard all removed components. Install
the new regulator. Ensure the rubber gasket on the back of the
pressure regulator is properly positioned when installing the new
pressure regulator using the new screws supplied with this kit.
Locate the label provided in the regulator kit. Write in the required
information, then affix it to the valve.
Figure 3 - Replace Regulator on Valve
Step 3. Remove the glass door by opening both latches on the right and
left side of the door (see Page 18 in the Installation and Operation
Manual). Carefully remove the logs. Exercise care so as not to
break the logs. Set aside in a safe place.
Step 4. Using a 5/32” allen wrench, remove the allen-head screw on the
left side of the air control panel as shown in Figure 4, then lift
out air control panel as shown in Figure 5.
Step 5. Using a 5/32” allen wrench, remove the screw which secures
burner tube assembly as shown in Figure 6. Then lift out burner
tube assembly as shown in Figure 7.
LO
HI
Remove These
Screws
Regulator
Gas valve
(located in control com-
partment below firebox)
1. Replace Regulator.
2. Fill out & affix label
from regulator kit to
valve
Air Control Panel
Figure 4
Figure 5
Figure 6
Figure 7
Remove Allen-head Screw
Firebox
Lift Out Air Control Panel
Remove Allen-head Screw
Burner Tube Assembly
Lift Out Burner Tube Assembly
IMPORTANT NOTE: Do not overtighten the regulator screws.
Overtightened screws may result in little to no difference in
flame height when adjusted from high to low.
2
NOTE: DIAGRAMS AND ILLUSTRATIONS ARE NOT TO SCALE.