Heatilator WTBC36BB User manual

12/05 4040-227 Rev B 1
These refractories are intended for use with the Caliber CB Series B-Vent and CD Series Direct Vent gas appliances. Refer to the installa-
tion instructions supplied with the appliance for the correct accessories to be used. If you encounter any problems regarding code approv-
als or if you need clarification of the instructions contained here, contact your local distributor/dealer or the Heatilator Technical Services
Department, Hearth & Home Technologies Inc., 1915 W. Saunders Street, Mt. Pleasant, IA 52641, phone [phone].
INSTALLATION INSTRUCTIONS
REFRACTORIES FOR CB & CD SERIES
WTBC36BB and WTBC42BB - B-vent Refractory
WTBC36DB and WTBC42DB - Direct Vent Refractory
CAUTION:
Install this refractory only after the appliance has
cooled and the gas and electricity have been shut
off.
CAUTION:
Wear gloves and safety glasses for protection.
Note: An arrow () found in the text signifies change in content.

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REFRACTORY - CB & CD SERIES INSTALLATION INSTRUCTIONS
1. Shut off the electricity to the appliance and turn the gas shutoff
valve to the closed position. See Figure 1. Remove the screen
and glass from the appliance.
OFF
Figure 1 - Gas Shutoff Valve
Screws
Figure 2 - Loosen Grate
2. Lift the two top logs off the log set. See Figure 2.
3. Remove the grate/log assembly by removing the two screws
as shown in Figure 2. Lift and pull the grate/log assembly from
the front of the firebox.
Remove four screws securing the rear log. See Figure 3. Lift
rear log and remove from firebox.
Figure 3 - Remove Rear Log
4. Carefully install a side refractory. Tip the bottom edge into posi-
tion, and swing the top up. This will hold the back refractory in
place. See Figure 4.
Figure 4 - Tip Side Refractory
5. To secure the side refractory in place, remove the screw in
the firebox side. Attach a refractory bracket (using the screw
removed) to the firebox side. Leave screw loose until Step 7
to allow for adjusting. See Figure 5.
Figure 5 - Refractory Brackets

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REFRACTORY - CB & CD SERIES INSTALLATION INSTRUCTIONS
7. Repeat Step 4 to install the other side refractory piece.
8. Adjust the back and sides so no gaps are visible in the corners
where the pieces come together.
9. Tighten screws.
10. Reinstall the rear log, grate/log assembly, glass panel assembly
and screen.
11. Restore power and gas flow. Your refractory installation is now
complete.
Figure 6 - Place Back Refractory-Direct Vent
Figure 7 - Place Back Refractory-B-Vent
6. Direct Vent
Place the back refractory into position and slide the side edge
of the back refractory behind the side refractory. This will hold
the back refractory in place. See Figure 6.
B-Vent
Place the back refractory into position and slide the side edge
of the back refractory behind the side refractory. Hold the back
refractory in place until the second side refractory is installed.
See Figure 7.

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REFRACTORY - CB & CD SERIES INSTALLATION INSTRUCTIONS