Hearth and Home Technologies Direct Vent Room Heater 839-1460 - Manual (Page 24)

Page 24 September 1, 2008 Quadra-Fire · Sapphire · 250-7233H
A
B
C
Mounting Screws
Pressure Regulator Tower
Diaphragm
Figure 6.6 Turn control knob to the OFF position, ensure that
gas supply to the valve has been turned off. Using a Torx
TH20, or slotted screwdriver, remove the three pressure reg-
ulator mounting screws (A), pressure regulator tower (B),
and diaphragm (C).
2. Valve Regulator Replacement
Remove upper and lower back shield. Loosen the set col-
lars on the extension rods with the 3/32 in. Allen wrench.
Remove the rods and adapter cap.
Fire Risk.
Explosion Risk.
• Disconnect any electrical cords and
turn off gas supply to unit before
proceeding if converting fuel on an
appliance already fully installed.
WARNING
IMPORTANT NOTE! The orifice supplied with the con-
version kit is for installations with vertical rise. If your
appliance was fitted with the rear vent kit, the correct
conversion orifice was supplied WITH THE REAR VENT
KIT.
PROPANE NATURAL GAS
Top Vent .063 (52 DMS) .106 (36 DMS)
Rear Vent
(no vertical)
.059 (53 DMS) .096 (41 DMS)
Figure 6.5 Replace orifice with the proper size as indicated
below for your gas type and venting. Re-install burner. Slide
burner neck into shutter and over orifice. Re-install burner
pan locators on left and right side of the burner. Secure with
one screw to each side.
Replace logs, glass door and front.
Replace pilot injector with the one supplied in the conversion
kit (#35 for Propane, #62 for Natural Gas).
NOTE: The injector is ONLY replaced if you are convert-
ing to another gas. It is not replaced for a change
from top to rear vent.
Replace pilot hood, snapping into position.
Remove main burner orifice using a 5/8" wrench.