Vermont Casting DVR33 - Manual (Page 31)

31
Vermont Castings, Majestic Products: DVR33
10004920
Fuel Conversion Instructions
Honeywell Gas Control Valve (Fig. 48):
The Honeywell valve fitted to this unit is suitable
for use with LP or Natural Gas. It is converted to
the required gas application by installation of a
color coded “conversion screw.”
a) Using a suitable small screwdriver lift out the
central regulator cap from the “Hi–Lo” knob on
the valve.
b) Unscrew the exposed conversion screw.
c)
Insert the new color coded conversion screw.
Do not over-tighten the screw, it must be
finger tight.
d) Refit the regulator cap.
e) Mount conversion label supplied with con-
version screw to valve in a visible position.
10. Reassemble fireplace in the reverse order, except
window frame assembly. Leave this off until after
unit has been checked for leaks and the gas
supply has been bled.
11. After bleeding gas line and checking for leaks with
a soap solution, replace the front glass. Fire up the
unit, check for flame impingement on logs, adjust-
ing them if necessary. Check manifold and supply
pressures against the appliance specifications.
The procedure for converting from one
gas to another is the same regardless of
the initial gas used. The only variations
are in orifice sizes and component part
numbers. Your authorized service
provider will ensure correct parts are
used.
Nova SIT820 Gas Valve
CO122
Fig. 47 Nova SIT 820 gas valve conversion.
For RN and RP models only:
The conversion of this appliance from
one gas to another must be carried out
by an authorized service provider.
1. Disconnect power to unit and shut off the gas supply.
2. Remove the glass (see “Window Frame Assembly
Removal” section).
3. Carefully remove the logs and lava rock material.
4. Remove the pilot assembly from the bracket.
5. Remove the screws that are holding the burner
housing assembly in place.
6. Remove the burner housing assembly.
7. Remove front and rear orifice and replace with the
orifice supplied in the conversion kit. Use the
orifice with the smallest hole for the front burner
and the orifice with the largest hole for the rear
burner.
NOTE: On the DVRT43 (only), the adjustable air
shutter on the end burner housing must
be replaced. Refer to the instructions in
the specific gas conversion kit for
details.
8. SIT Top Convertible Pilot
Gently lift off pilot hood from the pilot. (Do not
remove the spring clip holding the hood in place).
Using a 5/32” Allen key, unscrew the exposed orifice.
Insert the new orifice supplied in the kit, do not over
tighten the orifice. Replace the pilot hood ensuring
the index tab aligns with the notch on the hood.
PSE Pilot
Using a suitable wrench on the hexagonal body
unscrew the pilot hood assembly from the pilot; do
not twist the hood itself. Remove the orifice and
replace it with the new orifice supplied in the kit.
Refit the pilot hood assembly. Do not overtighten
the pilot hood. The hood must return to its
original alignment. Take care to not damage the
thermocouple, thermopile, or igniter.
9. SIT 820 NOVA Gas Control Valve (Fig. 47):
a) Using a Torx T20 or slotted screwdriver, remove
and save three (3) pressure regulator mounting
screws (A), pressure regulator tower (B), and
diaphram (C).
b) Ensure the rubber gasket (D) is properly
positioned and install the new Hi/Lo pressure
regulator to valve, using the new screws (E)
supplied with the kit. Tighten screws securely.
(Reference torque: 25 in.lb)
c) Install the enclosed identification label (F) to the
valve body where it can be easily seen.