Monessen Hearth M400BFC User Manual

9

FPC555a

Platform insulation 

BFC model

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Hard Flat

Surface

Insulation

Platform

FPC555a

Fig. 7  Insulating between platform and fireplace.

Framing can be constructed before or after the fireplace 
is set in place, however, most installers build the frame 
before setting the fireplace.
Frame fireplace with 2 x 4 lumber or heavier materi-
als.  Refer to framing dimensions in Figure 1 for basic 
fireplace specifications.
NOTE:  Framing should be positioned to accommodate 
wall covering and fireplace facing material. 

The fan requires 120VAC, 60 Hz power which may be 
connected to the right side of the fireplace using the 
romex pigtail provided with teh unit. This power must 
be completed before the fireplace is secured and finish 
material applied.
1.  Attach the white wire from house power to the white 

wire of the romex pigtail and secure with a wire nut.

2.  Attach the black wire from the house power to the 

black wire of the romex pigtail and secure with a 
wire nut.

3.  Attach the ground wire from house power to the 

ground wire of the romex pigtail and secure with a 
wire nut. (Fig. 8)

IMPORTANT: The wire nuts must be tight.

NOTE: Check local building codes to determine if 
junction box is required at the romex pigtail/house wire 
connection Also check junction box and speed control 
(SCVS) installation instructions.
The Model FKSX-A blower assembly is preinstalled in 
the M400BFC.

FP1062
romex pigtail
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Romex Pigtail

(Provided)

Fireplace Electrical 

Coverplate

Wire Nuts 

(Not pro-

vided)

Ground

Black

White

House 

Wiring 

(120V 

60Hz)

FP1062

Fig. 8  Wiring diagram.

Since you have already preplanned the chimney run, 
you should know exactly how the installation is to 
be accomplished — how much pipe is required, the 
number of elbows, if any, and type of termination to be 
used.
CAUTION:  REPORT TO YOUR DEALERS ANY 
PARTS DAMAGED IN SHIPMENT, SPECIFICALLY 
CHECK THE END CONNECTION OF CHIMNEY SEC-
TIONS AND ELBOWS.
NOTE: The M400BFC fireplace must use MHSC Model 
triple wall 8” chimney components only. The installation 
procedure described in this manual applies only to this 
system.

To mark the centerline of the flue, put the fireplace in 
final position and measure out from the wall: 8C\v" (222 
mm). Mark a spot on the ceiling directly above the fire-
place. Draw a line parallel to the back wall through this 
mark. (Fig. 9)
Using a plumb bob positioned directly over center point 
of fireplace flue collar, mark the ceiling to establish the 
chimney center point. (Fig. 9)