North Star 864 HH 4070201, off the pilot, assembly, b Use a hex wrench to unscrew the orifice

Finalizing the Installation (for qualified installers only) 53

3Follow the directions below to replace the orifices.

a Slide the air shutters all the way to the left.

Rear Orifice

Front Orifice Manifold

b

c

Use a 1/2” open end wrench to unscrew both orifices.

Apply thread sealant to the LP orifices prior to installation. Use the chart below to identify the correct orifices.

1/2" Wrench

Front Burner

Orifice

Rear Burner

Orifice

Look here for the orifice identification

LP NG

Front 1.2mm #45

Rear #55 #45

Manifold

5/16”

d

Screw the LP orifice in so the orifice shoulder protrudes 5/16” (indicating full insertion).

4Remove the pilot orifice following the instructions below. Replace with the propane pilot orifice

a	Lift the pilot hood
	off the pilot
	assembly.

c	Remove the orifice and replace with the LP orifice. Screw the
	orifice all the way in and replace the pilot hood.
	Orifice Identification:

b Use a hex wrench to unscrew the orifice.

5/32" Hex

NOTE: when re-attaching, this pin lines up with the notch in the pilot hood.

35

LP (Propane) Orifice

35

NG (Natural Gas) Orifice

62

© Travis Industries 4070201 100-01182_002