OWNER’S MANUAL
INSTALLATION INSTRUCTIONS FOR CONVERSION NATURAL TO PROPANE/LP
WARNING: This conversion kit must be installed by a quali- fied service agency in accordance with the manufacturer instruc- tions and all applicable codes and requirements of the author- ity having jurisdiction. If the in- formation in these instructions is not followed exactly, a fire, ex- plosion, or production of carbon monoxide may result causing property damage, personal injury, or loss of life. The qualified ser- vice 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 sup- plied with the kit.
BEFORE YOU BEGIN
The conversion parts are packaged with the fireplace. Please check the contents before beginning this conversion. Each model in- cludes a brass main burner orifice and a smaller sized pilot orifice (see Figure 60).
Before proceeding, make sure the gas con- trol valve is in the “OFF” position, all elec- trical power to the appliance is OFF, and the appliance is cool to the touch.
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)
Propane/LP
Pilot Orifice
Note: The pilot orifice has the number 30 stamped on it for identification purposes (Both Models).
Figure 60 - Main Burner Orifice and Pilot Orifice
BURNER AIR SHUTTER ADJUSTMENT, MAIN BURNER ORIFICE, AND PILOT ORIFICE CONVERSION
1.Remove the upper louver panel and glass door (see Removing/Replacing Glass Door, page 22).
2.Carefully remove the log set and em- ber material from around the burner and place them outside the fireplace (see Installing Logs, Lava Rock and Glow- ing Embers, page 24).
3.Open lower louver panel. This allows access below firebox to gas line con- nections and gas control valve.
4.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 61).
5.Turn brass elbow and main burner ori- fice 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.
6.Remove existing main burner orifice from brass elbow and replace with main burner orifice supplied with the fire- place. Note: The new main burner ori- fice for propane/LP will have the num- ber 132 (Model MBDV37 only) or the number 139 (Model MBDV41 only) stamped on it for identification pur- poses. Apply a small amount of thread sealant to the orifice before tightening (see Figure 62, page 30). Sealant must be resistant to Propane/LP gas.
Burner | 5/16" hex |
| |
| Mounting Screw |
Fireplace | Air Shutter Screw |
Floor |
|
| Air Shutter |
| (Shown in |
| FULLY OPEN |
| Position) |
| RTV Silicone |
| Main Burner |
| Orifice |
| Brass Elbow |
Aluminum Tubing | Flare Fitting |
Figure 61 - Removing/Replacing Main Burner Orifice, Brass Elbow, and Alumi- num Tubing
Continued
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