Installation and Operation
15
26D4720
MCUF Series Vent-Free Firebox
Optional brass trim kits can be used with unit when installed
as a free standing replace with wood surround.
The optional wide canopy can be installed. See installation
instructions provided with kit.
(BLOTMC)
If you are installing the forced air kit, Model BLOTMC,
on MCUF36 or MCUF42 models, refer to the installation
instructions provided with the kit for electrical wiring require-
ments, or the blower installation section. The rebox must
be connected to main power supply at time of rebox instal-
lation. The blower must be installed prior to the installation
of the vent-free heater. The electrical connections must
be made before the rebox is framed and enclosed in the
nished walls.
Any of the original wire as supplied with the replace must
be replaced. Contact dealer for proper replacement wiring
harness. (see parts list for part number). 120 volts, 60Hz,
1 amp.
Electrical power cord (plug) can be routed to exit the
MCUF36/MCUF42 on either the left side or the right side.
Remove cord protector from side of unit, route power cord
through hole opposite side. Reinstall cord protector.
Always check local building codes. The
installation must comply with local regulations as well as
the national electric codes.
110/115V AC
OFF
Fan Switch
ON
Black
White
Green
Thermostat
Control
Blower
Motor
Black
FP2847
BLOTMC wiring
Figure 20 -
BLOTMC Wiring Diagram
1. This should be done before framing the replace. Wire
the receptacle into an electrical circuit. Wire with mini-
mum 60° C wire in accordance with prevailing codes.
2. Remove the external junction box cover by removing
the screw from the side of the outside rebox wall.
Junction box was installed at the factory.
3. The junction box cover has a factory installed “romex”
style strain relief connector. After connecting the wires,
route the wire leads through this connector. Refer to
the wiring diagram in Figure 21.
FP1912
Junction box wiring
8/08
Figure 21 -
Junction Box Wiring Diagram
Junction Box
Factory Supplied
Not Supplied
120V AC
60Hz