Monessen Hearth DIRECT VENT MLDV500 - Manual (Page 32)

3 75D0004
MLDV Series Gas Fireplace
10.Turn blowers with discharge vent facing up. Slide the discharge
vent so that it is facing up. Slip discharge vent flange under the
flange bracket flush against the sidewall. Slide blower side tabs
over into side flange. Figure 48. The blower is now locked in
place.
11. Attach the speed control to the un-
derside of the firebox using the sup-
plied velcro, locating as far to the
right or left as possible.
1. The thermal sensor clip is located
beneath the firebox floor near the
center. Slide the thermal sensor into
the clip until it snaps in place. Make
sure the terminals on the thermal
sensor are perpendicular to the clip.
Figure 49
WARNING: It is important to arrange the
blower wire harness so the wires
can not come in contact with blower
fan blades.
13. Connect wiring according to the wir-
ing diagram Figure 51.
14. Replace engine in reverse order of removal.
15. Plug in the blower.
16. Re-install firebrick, grate, logs, and glass door in reverse order of removal.
17. To test blower operation, set the variable speed blower on the LOW setting. Turn the fireplace on high.
The blower should turn on within 10 minutes.
18. If the blower does not turn on, turn the fireplace off and allow cooling. Unplug the blower. Using a jeweler’s
style screwdriver, turn the white dial on the side of the variable speed control 1/8 turn counterclockwise.
Figure 50. This will allow the blower motor to start at the low speed setting as the fireplace cycles on and
off. Retest the blower.
OPTIONAL FAN/BLOWER SYSTEM
FP1981
blower install
Figure 47 -
Blower Installation
Thermal
Sensor
Clip
Figure 49 -
Thermal Sensor Installation
Figure 50 -
Location of White Dial on Speed Control
KT503
blower magnets
11/08
Magnet
KT503
Figure 46 -
Magnet Installation
KT505
install blower
Start Position
Installed
Position
KT505
Figure 48 -
Blower Installation Position