Monessen Hearth BLOTMC - Install Thermal Sensor (VFF Series); Mounting Thermal Sensor for VFF Series; IPI Control Installation; Mounting Variable Speed Control

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Monessen • BLOTMC Installation Manual • 93D0005 • Rev H • 01/2020
NOTE: Pertaining to the VFF Series
Thermal Sensor Installation:
1. Install the thermal sensor by inserting the wires into
the hole at the top of the right-side face. The wires
should drop down the channel inside the face to the
oor of the unit. See Figure 16.
2. Once the wires are visible from the access panel
at the oor level push the thermal sensor ush with
the right-side face and attach with 2 screws.
3. Pull the wires toward the back of the unit.
4. Attach wires as per wiring diagram. See Figure 14.
Blower Installation:
1. Remove the lower access door.
2. Slide the blower through the lower access opening
to the side of the controls to the rear of the unit.
3. With blower in lower access compartment, turn the
discharge vent so it is facing up. Slip the discharge
vent ange under the ange of the mounting bracket
ush up against the back wall. Slide the side tabs
over into the side ange. See Figure 6.
4. If blower is being installed on bench prior to framing,
the engine assembly can be removed for easier ac-
cess to the blower compartment.
Variable Speed Control Installation:
Millivolt Control:
1. Remove the knob from the speed control.
2. Remove Blower Switch Bracket. See Figure 7.
3. Attach the Variable Speed Control to the control panel
with the 2 screws previously removed. See Figure 17.
4. Reinstall the knob.
IPI Control:
1. Remove the knob from the speed control.
2. Remove Blower Switch Bracket See Figure 7.
3. Bend the mounting tab on the oor up 90 degrees.
4. Attach the Variable Speed Control to the mounting
tab with the 2 screws previously removed. See Fig-
ure 18.
5. Reinstall the knob.
Finishing Installation:
1. Connect all wiring per wiring diagram. See Figure
13.
2. Use wire management clips and wire ties to secure
wires.
3. Plug power cord into junction box.
WARNING
It is important to arrange the blower wire harness so
the wires cannot come in contact with the blower fan
blades.
Speed Control
Screws
Figure 17
Screws
Tab
Speed
Control
Figure 18
Figure 16