16"
41
5
8
"
67
7
16
"
60"
10
1
8
"
53
5
8
"
5
3
8
"
1"
27"
22716"
225 16"
1"
Top View
2618"
17 8"
812"
16716"
Installation
n
3.02
Comfort Plus
Installation
PLACEMENT AND CLEARANCE REQUIREMENTS
The physical dimensions of the Comfort Plus, along with the
clearances required, MUST be taken into consideration when
choosing its location within a structure. (See Figures 2 and 3
for system dimensions and clearance requirements.)
The best installation location for this system is in a space
requiring heat so some amount of the heating requirements can
be satisfied through static dissipation from the warm outer
panels. In situations where the Comfort Plus is not installed in
an area it is intended to heat (i.e. storage closet), it is important
to account for the heat lost through static dissipation by making
proper adjustments when sizing the system. Standby heat
dissipation of up to 2.5kW can be experienced in normal opera-
tion.
Room air should be maintained at less than 85° Fahrenheit.
If ventilation is needed, it can be provided by installing a 24 x
24 opening into the area where the Comfort Plus is located. In
addition, a 6 x 6 non-closing type register can be cut into the
return air duct of the furnace to minimize heat build-up in the
room. This register must be installed in a manner that ensures
the air drawn into the Comfort Plus passes through the filter
first (see Figure 3A).
In addition to the physical space requirements, the weight of the Comfort Plus must be taken into consideration
when selecting the installation surface. A level concrete floor is the best installation surface on which to place the
system, but most well supported surfaces are acceptable. If unsure of floor load capacity, consult a building
contractor or architect.
Special requirements must be considered if placing the system in a garage or other area where
combustible vapors may be present. Consult local, state, and national codes and regulations to
ensure proper installation. An 18" pedestal (Order Item #1301585) is available to elevate the
4100 Series.
3100 SERIES SYSTEM REQUIREMENTS
FIGURE 2
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Back and Bottom = 0 clearance
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Left Side = 4 inches
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Right Side = 8 inches (from combustible material)
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Top = 8 inches (from combustible material)
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Front = 36 inches (for ease in servicing)
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Outer Sides of System Ducts (Return and Supply) = 0 clearance
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Between Ducting and System = 0 clearance (top and right side)
2A
2B
CLEARANCES
2D
Return
Air
Plenum
(Factory
Supplied)
2C
DIMENSIONS
Minimum clearance requirements may NOT account for
required working space for electrical connections.
FRONT VIEW
8" MIN CLEARANCE TO COMBUSTIBLES,
0" MIN CLEARANCE TO DUCTING
15
60
60
4" MIN
CLEARANCE
M
ST EFFE S
A
M
M
P
36" MIN CLEARANCE (FRONT)
0" MIN
CLEARANCE
TO RETURN
AIR DUCT
TOP VIEW
O" MIN
CLEARANCE
(BACK)
Risk of fire. Can cause injury or death.
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Violation of the clearance require-
ments and/or failure to provide proper
ventilation can cause improper opera-
tion of the system. Maintain the
placement and clearance require-
ments as specified and provide venti-
lation as necessary.
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Failure to maintain room temperature
in the mechanical room of 85
o
F or less
may result in equipment damage.
Thermostatically controlled ventilation
should be provided if the temperature
in this area exceeds 85
o
F.
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Moving the system after install may
result in equipment damage. Do NOT
move system from original installed
location.
WARNING
