Lennox Hearth 42 ユーザーズマニュアル

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 Propane Gas to using Natural Gas as the only fuel.

All of these components must be replaced in order for the unit to

operate safely on Natural 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

TuRN OFF ThE GAS SuPPLy TO ThE APPLIANCE.

Step 1. Using a Torx T20 or flat screwdriver, remove the Nova SIT LP

Regulator (flame height control) by removing the 3 screws sur-

rounding it (see Figure 3) . Be sure to also remove the LP regulator

diaphragm (see Figure 3).

Step 2. Install the Nova SIT NG Regulator (included in this kit) using the

3 new screws provided as shown in Figure 3.

Diaphragm

Screws

Regulator

Pressure

Regulator

Remove

These

Components

Figure 3

Fill out & affix label from

regulator kit to valve

Step 3 Remove the glass by releasing the two upper spring latches, and

lifting up and out of the lower latches.

Step 4 Remove the right side burner support by removing the four allen

screws (see Figure 4). Note: The right front corner of the burner

shares a screw with the burner support.

Step 5 Remove the allen screw securing the front left corner of the

burner.

Step 6 Move the air shutter control lever all the way to the right (see

Figure 9).

Step 8 Remove the pilot shield by removing the two allen screws (see

Figure 5).

Step 9 Reinstall screws to secure pilot assembly for pilot orifice conver-

sion.

5/32” allen screws

Figure 4

Figure 5

Shared Screw hole

Step 7 To remove the burner, slide the burner off the orifice and out of

the air shutter by shifting the burner to the right.

Remove the allen

screw securing the

front left corner of

the burner.

Burner

Remove the allen

screws on the right

side of burner.

NOTE: DIAGRAMS AND ILLUSTRATIONS ARE NOT TO SCALE.