Montigo R720 Installation & Maintenance Manual page 16

R720 & R820 Power Vent Indoor Gas Fireplace
Section 3-1-2: Converting the Pressure Sensing
Tube and Air Baffle
When the R720* / R820* is converted from Top Vent to Rear Vent,
the pressure sensing tube must be removed and replaced with
supplied Rear Vent pressure sensing tube and air baffle must be
relocated as described below�
Figure 8. Factory installed Top Vent Pressure Sensing
Tube
Figure 8a. Supplied Rear Vent Pressure Sensing Tube
1. Remove two screws from the air baffle installed over the Top
Vent from inside the firebox. Once air baffle is removed, replace
the two screws back into the same position�
Note: Not all models are equipped with an air baffle. Only convert
if available�
2� Remove Top Vent pressure sensing tube by loosening the
compression nut with a 1/2" wrench.
Figure 9. Removal of Top Vent air baffle and pressure
sensing tube.
Page 16
Installation
3� Position the supplied Rear Vent pressure sensing tube as
shown in Figure 9a� Hand tighten the compression nut by
hand and then a half-turn with a wrench�
Do not over tighten�
4. Install air baffle over Rear Vent from inside the firebox with two
screws provided at the Rear Vent�
Figure 9a. Removal of Top Vent air baffle and pressure
sensing tube.
NOTE: Rear vent pressure sensing tube is shipped inside the
control box�
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