FMI MBDV37 Fireplace Instructions

INSTALLATION INSTRUCTIONS FOR CONVERSION
NATURAL TO PROPANE/LP
SHOULD BE DONE BY A QUALIFIED GAS SERVICE TECHNICIAN
WARNING: This conversion
kit must be installed by a qualified service agency in accordance
with the manufacturer instructions and all applicable codes
and requirements of the authority having jurisdiction. If the information in these instructions is
not followed exactly, a fire, explosion, or production of carbon
monoxide may result causing
property damage, personal injury,
or loss of life. The qualified service agency is responsible for
the proper installation of this kit.
The installation is not proper and
complete until the operation of
the converted appliance is
checked as specified in the
manufacturer’s instructions supplied with the kit.
REMOVING GLASS DOOR
1.
2.
3.
Remove the upper louver panel by lifting upward and out (see Figure 2).
Using a 3/8" socket or slotted screwdriver remove the screws from the three
tabs at the top of the glass door (see
Figure 3). Hold glass door securely to
keep it from falling forward.
Grasp door by both sides and ease it
upward off the lower bracket (see Figure 3).
Top Louver Panel
BURNER AIR SHUTTER
ADJUSTMENT, MAIN
BURNER ORIFICE, AND
PILOT ORIFICE
CONVERSION
1.
2.
3.
4.
BEFORE YOU BEGIN
The conversion parts are packaged with the
fireplace. Please check the contents before
beginning this conversion. Each model includes a brass main burner orifice and a
smaller sized pilot orifice.
Before proceeding, make sure the gas control valve is in the “OFF” position, all electrical power to the appliance is OFF, and the
appliance is cool to the touch.
Figure 2 - Removing Top Louver Panel
LOG REMOVAL
Carefully remove the log set and ember
material from around the burner and place
them outside the fireplace.
Screw
Burner
Propane/LP
Main Burner
Orifice (18mm
Hex)
Note:
For Model MBDV37 - #55 Drill Size
(Stamped with #132 for Identification)
For Model MBDV41 - #54 Drill Size
(Stamped with #139 for Identification)
Note: The pilot orifice has
the number 30 stamped
on it for identification
purposes (Both Models).
Propane/LP
Pilot Orifice
Glass Door
Assembly
Fireplace
Floor
5/16" hex
Mounting Screw
Air Shutter Screw
Air Shutter
(Shown in
FULLY OPEN
Position)
RTV Silicone
Lower Bracket for
Glass Door Assembly
Figure 3 - Removing/Replacing Glass
Door
Main Burner
Orifice
Brass Elbow
Aluminum Tubing
Flare Fitting
Figure 4 - Removing/Replacing Main
Burner Orifice, Brass Elbow, and
Aluminum Tubing
Figure 1 - Main Burner Orifice and Pilot
Orifice
106488
Open lower louver panel. This allows
access below firebox to gas line connections and gas control valve.
Disconnect flare fitting connected to the
brass elbow inside the bottom control
compartment area. Use a 3/4" open end
wrench on the flare fitting (see Figure 4).
Turn brass elbow and main burner orifice counterclockwise to remove from
burner. The orifice is threaded into the
burner inlet. The elbow may have a
slight resistance since the orifice has
been sealed with RTV silicone. Use a
7/8" open end wrench or channel lock
pliers for elbow and orifice removal.
Remove existing main burner orifice
from brass elbow and replace with main
burner orifice supplied with the fireplace. Note: The new main burner orifice for propane/LP will have the number 132 (Model MBDV37 only) or the
number 139 (Model MBDV41 only)
stamped on it for identification purposes. Apply a small amount of thread
sealant to the orifice before tightening
(see Figure 5, page 2). Sealant must be
resistant to Propane/LP gas.
Continued
1
INSTALLATION INSTRUCTIONS Continued
5.
Remove the burner by loosening the
two 5/16" hex mounting screws (see
Figure 5). Lift burner up and out.
6. Convert the pilot burner by changing out
the pilot orifice. Remove the compression nut and compression sleeve from
the pilot. Remove the pilot orifice from
inside the pilot barrel (see Figure 6). Replace with the pilot orifice supplied with
the fireplace. Note: The new pilot orifice has the number 30 stamped on it
for identification purposes.
7. Place open end of pilot orifice on top of
compression sleeve and carefully slide
up inside pilot burner. Tighten compression nut (see Figure 6). IMPORTANT:
Be careful not to bend or kink aluminum tubing during conversion. Make
sure the compression sleeve and pilot
orifice are properly mated and aligned
before retightening the compression nut.
8. Adjust air shutter setting on main
burner. Loosen air shutter screw and
rotate air shutter to FULLY OPEN position (see Figure 4, page 1). Tighten
shutter screw. Place burner back into
position. Attach with the two 5/16" hex
mounting screws removed in step 5.
9. Attach main burner orifice and brass
elbow assembly to burner. Place main
burner orifice into threaded end of
burner and turn clockwise to tighten
(see Figure 4, page 1). Align the brass
elbow with the flare fitting on the aluminum tubing.
10. Reconnect the aluminum tube flare fitting onto the brass elbow (see Figure 4,
page 1).
11. Reapply RTV silicone to seal area where
orifice passes through the bottom combustion chamber (see Figure 4, page 1).
Thermopile
FINAL PREPARATION
Pilot Burner
Piezo Ignitor
Thermocouple
2.
Replace logs and embers back into the
correct positions as instructed in your
appliance owner’s manual.
Reinstall glass door and upper louver
panel on fireplace. To do so, reverse the
instructions under Removing Glass
Door on page 1.
The conversion is now complete.
Refer to the section on Checking Gas Connections and Operating Fireplace in your
appliance owner’s manual.
12mm
Hex
Pilot Orifice
Compression
Sleeve
Compression Nut
(10mm Hex)
Figure 6 - Removing/Replacing Pilot
Orifice
GAS CONTROL VALVE
CONVERSION
The SIT Nova millivolt valve converts from
natural gas to propane/LP gas with the reversal of the conversion screw located on
the stem in the top of the valve (see Figure
7). The valve is located in the bottom of the
fireplace underneath the firebox.
WARNING: Test all gas piping and connections for leaks
after installing or servicing. Correct leaks at once.
WARNING: Never use an open
flame to check for a leak. Apply
commercial leak test solution to all
gas joints. Bubbles forming show
a leak. Correct all leaks at once.
Remove the conversion screw from the valve
and rotate the screw 180 degrees. The screw
is clearly marked as NG or LPG, insure that
the LPG is facing outward. Tighten the
screw fully but do not over tighten.
SIT Nova
Millivolt Valve
INTERNATIONAL
2701 Industrial Drive
P.O. Box 90004
Bowling Green, KY 42101
Technical Service Department 1-800323-5190
Parts Department 1-800-972-7879
www.desatech.com
Conversion
Screw
Main Burner
Orifice (18mm
Hex)
LOT
PI
ON
FF
O
Apply Thread
Sealant Here
Only
1.
Stem
Top
Figure 7 - Valve
Brass Elbow
106488 01
Figure 5 - Removing/Replacing Main
Burner Orifice
NOT A UPC
106488-01
REV. B
04/00
2