Lennox Hearth Products LSS-35CN Installation Instructions Manual page 29

Step 5.
Convert the Honeywell RF Comfort Control
Valve as follows:
a. Access the gas selector by removing the
motor cover. Refer to Figure 52.
b. Using a slot-type screwdriver, push the gas
selector down and rotate until the arrows on it
point to the correctly colored screw: red for
LP/propane gas usage or blue for natural
gas. Refer to Figure 52.
c. Insert the conversion plug for the fuel being
used as shown in Figure 53 . Use the red plug
for LP/propane gas usage or the blue one for
natural gas.
d. Attach the correct gas conversion label to
the gas valve (see Figure 52 ) .
e. Replace the motor cover.
Step 6.
a. Convert the pilot orifice as follows (see
Figures 54, 55 and 56 on page 30 ):
Note - Use extra care not to engage the
orifice strip with the 7/16" open end wrench
(contacting the orifice strip could cause strip
distortion rendering the pilot inoperative).
Also avoid wrench contact to any of the other
pilot parts.
Use a 7/16" open end wrench and turn the pilot
hex fitting counter-clockwise 1/4 turn. (See
Figure 54 on page 30 ).
Note - The orifice strip tab may be randomly
located on any side of the hex fitting.
b. Push the orifice strip tab all the way against
the hex fitting to align the appropriate gas type
orifice (see Figures 55 and 56 on page 30 ) . The
type of gas for which the pilot is set, is, the gas
type shown on the tab.
c. Retighten, clockwise, the pilot hex fitting
until the pilot hood aligns with the thermopiles
as indicated by the arrows shown in Figure 54
on page 30 .
Adjusting the Fuel Selector on the
Figure 52 Honeywell RF Comfort Control Valve
Insertion of the LP/propane or Natural Gas Conversion
Figure 53 Plug on the Honeywell RF Comfort Control Valve
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
MOTOR COVER
RED SCREW (LP/propane)
BLUE SCREW (NATURAL GAS)
GAS SELECTOR SCREW
OR
PINS
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