Power Vent Control Box - Montigo BF36-SS Installation, Operation & Maintenance Manual

BF36 SS and ST Gas Fireplace
12" B-Vent Duct, One run
for Horizontal or V ertica
Installation R equired
Power Vent
Te rmination
Figure 7. Typical B-vent configurations.
Exterior Power Vent / Wire
Routing Installation Diagram
One Control Cable Installation
required for either Horizontal
or Vertical Termination.
Power Vent
Termination
16"x 16"x 4"
Deep Elect.
Control Box
20' Foot, 10-Conductor
Cable to Fireplace,
(Standard)
To Control Box
110 VAC 15A
Supply Current
From Dist. Panel From Control Box
Figure 7a. BF-SS Control Box / Power Vent Wire Routing Diagram)
Page 8
Installation
Power Vent
Te rmination
12"
l
.
Power Vent
Termination

Power Vent Control Box

Wiring requirements for Power Vent Installation
Figure 7b. BF-SS Standard Control Box
Combustion Air Supply System
Installation Requirements
An intake grill will have to be installed with the same size of the total opening

as the combined air supply ducts on the unit. Make sure you have calculated
the restriction and selected the proper grill size.
The BF-SS fireplace is supplied with two or more combustion air duct

connection points. Do not reduce the size of the air supply system, or
restrict the air supply in any way. On any combustion air supply run longer
than 10 feet the duct should be increased in size to prevent a restriction.
A vacuum safety switch, located under the burners, will monitor the combustion

air supply pressure and will prevent the burner from igniting, or continuing
to burn if the pressure is negative, past 0.08WC.
For extremely long air supply runs the combustion air supply will have to

be power assisted.
f i r e f e a t u r e
Part No. XG0712 - 031811