Installation
n
3.04
Comfort Plus
Installation
Step 4
Once in place, adjust the leveling legs on the bottom of the system as necessary to prevent rocking. If
not placed properly the system may bend or twist during the brick loading process, making element and
brick core temperature sensor installation difficult. Leveling legs should be extended no more than one
(1) inch.
Step 5
Remove the painted front panel of the electrical compartment by removing the screws along the edges.
Locate the element screw kit and the outdoor sensor.
Step 6
Remove the painted front panel of the brick storage cabinet by removing the sheet metal screws along
the top, bottom, and sides of the panel. Detach by pulling the bottom of the panel forward and down.
Step 7
Locate the element wiring harnesses behind the front painted panel. Carefully position them to avoid
damage during the brick loading and wiring processes.
Step 8 4100 SERIES ONLY.
Locate the brick core temperature sensor(s) behind the front panel and discon-
nect them from their shipping position. Carefully position the sensor(s) to avoid damage during brick
loading and wiring.
Models 4130 and 4140 have two brick core temperature sensors.
Step 9
Remove the galvanized front panel and set it aside.
Step 10
Starting at the bottom, carefully lift the two insulation blankets, one at a time, and drape them over the
top of the system.
Use face mask, gloves, and long sleeved garments when handling insulation materials
in compliance with generally accepted safety practices.
Step 11
Remove the front air channel by pulling out on the bottom of the air
channel on a 3100 series or the top of the air channel on a 4100
series.
BRICK LOADING
Load the brick, one row at a time, using a left side, right side, center pattern.
Start at the back of the brick core and work forward. Make sure the brick
are placed so the grooved side is facing up, the notch is facing forward, and
the ridges are on the left and right (see Figure 4).
BRICK INSTALLATION TIPS:
Install bricks carefully to avoid damage to
the insulation panels.
Remove loose brick debris to prevent
uneven stacking of brick as this can reduce
heating element life and/or make installation
of the elements and the brick core tempera-
ture sensor(s) difficult.
Brick rows MUST line up front to back and
side to side.
Half brick makes brick loading easier by
evening out the stacks. Use the HALF
BRICK (boxes marked) in the proper rows
and in the correct positions as indicated in
Figure 4. The back half of the brick MUST
be installed in the back rows and the front
half (the notched brick piece) MUST be
installed in the front rows.
FR
ON
T O
F U
NIT
HALF BRICK
NOTCH IN BRICK
3120: Does not contain half brick
4120: Load in row 5
4130: Load in row 4 and 8
4140: Load in row 6 and 12
BRICK LOADING
FIGURE 4
Risk of fire. Can cause
personal injury or death. DO
NOT operate the system if
damage to the insulation
panels on the inner sides of
the brick core occurs.
WARNING
