Desa Tech PCBM-S Owner's Manual
INTERNATIONAL
INSTALLATION INSTRUCTIONS
FOR PC-BVBNA CONVERSION KIT
NATURAL GAS TO PROPANE/LP GAS
For Use When Converting Models SBVBNB, SBVBNC,
SBVRBN, MSBVBN, MSRBVN, MSTBVN, FSBVBN, FSBVRBN,
and FSBVBNC
This conversion kit must be installed by a qualified service agency.
Read these instructions completely before installing this conversion kit.
Before proceeding, make sure the gas control valve is in the “OFF” position, all electrical
power to the appliance is OFF, and the fireplace is cool to the touch.
CAUTION: The gas supply shall be shut off prior to disconnecting the
electrical power before proceeding with the conversion.
Parts included with this kit:
Part No. Description Quantity
Instruction Sheet 1
105798-04 Pilot Orifice, Propane/LP 1
106036-02 Burner, Propane/LP 1
104506-17 Main Burner Orifice (1.51mm) 1
105799-02 Gas Valve Regulator 1
105801-27 Conversion Label, English 1
106038-27 Conversion Label, French 1
106080-01 Conversion Information Label 1
Tools Required
• 10mm Open End Wrench • 3/8" Socket, Nut Driver or
• 5/16" Socket or Nut Driver Slotted Screwdriver
• 18mm Open End Wrench or • #2 Phillips Screwdriver
Adjustable Wrench • 7/16" Open End Wrench
• 3/4" Open End Wrench or • Needle Nose Pliers
Adjustable Wrench • High Temperature Silicone Sealant
• 7/8" Open End Wrench or (GE RTV 106/Loctite RTV 81585)
Channel Lock Pliers • Thread Sealant (Resistant to Propane/LP)
If any of these pieces are missing or damaged, contact the dealer where you purchased this
kit or DESA International at 1-800-458-2472 for referral information.
REMOVING GLASS DOOR
The glass door must be removed to allow
access inside the firebox chamber for conversion. To remove the glass door, the front
panel on the stove body must be removed.
1. To remove the stove front panel, remove two 10mm hex bolts from bottom of stove and one phillips head bolt
from top of stove (see Figure 1).
2. Using a 3/8" socket or slotted screwdriver remove the screws from the two
tabs at the top of the glass door (see
Figure 2, page 2). Hold glass door securely to keep it from falling forward.
3. Grasp door by both sides and ease it
upward off the lower bracket (see Figure 2, page 2).
Bolt (Phillips
Head)
Bolt (10mm Hex)
Note:
Stove Front Panel
Figure 1 - Removing Stove Front Panel
Appearance of
Stove Body may vary
depending on Model
Continued
PC-BVBNA Conversion Kit
Screw (3/8" Hex or Slotted Screwdriver)
Glass
Door
Note:
Appearance of Stove Body
may vary depending on Model
Figure 2 - Removing/Replacing Glass
Door
LOG REMOVAL
Carefully remove the log set and ember
material from around the burner and place
them outside the combustion chamber.
BURNER, MAIN BURNER
ORIFICE, AND PILOT
ORIFICE CONVERSION
1. Open stove swing door. This allows access below firebox to gas line connections and gas control valve.
2. Disconnect flare fitting connected to the
brass elbow from the underside of stove
insert. Use a 3/4" open end wrench on
the flare fitting (see Figure 3).
Mounting Screw
Burner
Fireplace
Floor
Aluminum Tubing
Figure 3 - Removing Main Burner Orifice,
Brass Elbow, and Aluminum Tubing
(5/16" Hex)
Primary Air
Holes (4)
RTV
Silicone
Main Burner
Orifice
Brass Elbow
Flare Fitting
3. Turn brass elbow and main burner orifice counterclockwise to remove from
burner. The main burner orifice is
threaded into the burner inlet. The brass
elbow may have a slight resistance
since the main burner orifice has been
sealed with RTV silicone. Use a 7/8"
open end wrench or channel lock pliers for brass elbow and main bu rner orifice removal.
4. Remove existing main burner orifice from
brass elbow and replace with main burner
orifice supplied with conversion kit.
Note:
The new main burner orifice will
have the number 151 stamped on it for
identification purposes. Apply a small
amount of thread sealant to the main
burner orifice before tightening (see Figure 4). Sealant must be resistant to propane/LP gas.
5. Remove the burner by loosening the
two 5/16" hex mounting screws (see
Figure 3). Lift burner up and out.
6. Convert the pilot burner by changing out
the quick change orifice.
Note:
It is not
necessary to remove the pilot gas tube
for conversion. Using a 7/16" open end
wrench, turn pilot target hex fitting counterclockwise and remove (see Figure 5).
Main Burner
Orifice (18mm
Hex)
Apply Thread
Sealant Here
Only
Brass Elbow
Figure 4 - Removing/Replacing Main
Burner Orifice
Pilot Target Hood
Pilot Target Fitting
Thermocouple
Pilot Barrel
(7/16" Hex)
Pilot Orifice
Thermopile
7. Remove original pilot orifice using
needlenose pliers or fingertips. Replace
with the pilot orifice supplied with con-
Note:
version kit.
The new pilot orifice
has 012 LP stamped on it for identification purposes (see Figure 6).
8. Place open end of conversion pilot orifice
into pilot barrel (see Figure 5).
IMPORTANT:
Make sure the pilot orifice is properly mated and aligned inside pilot barrel.
9. Replace pilot target removed in step 6.
Tighten pilot target hex fitting until the
pilot target aligns with the thermocouple
and thermopile (see Figure 7).
10. Replace original burner with burner supplied with conversion kit. This new
burner for propane gas will have four(4)
primary air holes near the burner inlet
(see Figure 3). Attach with the two 5/16"
hex mounting screws removed in step 5.
11. 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 3). Align the brass elbow
with the flare fitting on the aluminum
tubing.
12. Reconnect the aluminum tube/flare fitting onto the brass elbow (see Figure 3).
13. Reapply R TV silicone to seal area where
orifice passes through the bottom combustion chamber (see Figure 3).
Stamping
Identification
x
x
x
x
x
Figure 6 - Pilot Orifice Stamping
Identification Location
Thermocouple
Pilot Target
Thermopile
Figure 5 - Removing/Replacing Pilot
Orifice
For more information, visit www.desatech.com
Figure 7 - Pilot Target Alignment
2
106127
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