SPECIFICATIONS
Appendix
A
Appendix
A.01
Comfort Plus
* The return air plenum can be ordered as an optional piece with the 4100 series systems. The dimensions listed
are those that the return air plenum can accommodate. For larger coils, the return air plenum must be installer
supplied. If using an air conditioning or heat pump system with the Comfort Plus, the Comfort Plus does not
include the indoor coil or the outdoor compressor system as standard equipment.
** The Comfort Plus system can accommodate most heat pump or air conditioner indoor coils provided the
heat pump or air conditioner is sized in accordance to supply air delivery rates of the Comfort Plus system.
Equipment modifications are required to fit larger coils.
• 1/2 HP variable speed accommodates most 1½ to 4 ton heating/cooling systems
• 3/4 or 1 HP variable speed accommodates most 3 to 5 ton heating/cooling systems
*** Dimension does not include the return air plenum.
Model
4120
4130
4140
Charging Input (kW)
14.0
19.2
24.8
28.8
37.2
38.4
45.6
Single Feed: Minimum Circuit Ampacity
(240V Systems)
(Includes 25% Derate for Continuous Load)
81
109
138
159
203
209
247
Charging Circuits Required
(240V Systems – Multiple Feed)
2 -
30AMP
& 1 –
20AMP
1 -
30AMP
& 2 –
40AMP
2 -
60AMP
& 1 –
40AMP
4 -
40AMP
4 -
50AMP
4 -
50AMP
4 -
60AMP
Maximum Core and Supply Blower Load
(240V Systems)
7 AMPS
Element Voltage
240V Standard (208V and 277V optional as special factory order)
Note: The 240V element circuits can be connected to 208V in
standard configurations; however, the charging input of the
system will be derated by 25%.
Blowers/System
Controls Voltage
240V/208V
Storage Capacity
kWh
BTU
120
426,500
180
614,160
240
818,880
Dimensions without ducting
(W x D X H in inches)
29.2 x 44.7 x 46.6
29.2 x 44.7 x 57.6 29.2 x 44.7 x 68.6
Duct Openings (inches)
Supply Air Outlet
Return Air Inlet
18 x 22.6
10.5 x 22.6***
18 x 22.6
10.5 x 22.6***
18 x 22.6
10.5 x 22.6***
Approximate System Weight
485 lbs
565 lbs
625 lbs
Approximate Brick Weight
1,782 lbs
2,574 lbs
3,366 lbs
Approximate Installed Weight
2,267 lbs
3,139 lbs
3,991 lbs
Number of Elements
8
12
16
Number of Brick
Whole Brick
Half Brick
105
6
150
12
198
12
*1/2 HP Maximum Coil Size
Capacity
Front Access Dimensions
Inner Dimensions
(W x D x H in inches)
1½ to 5 TON**
25.5 x 22 x 30
26 x 22 x 31
1½ to 5 TON**
25.5 x 22 x 30
26 x 22 x 31
1½ to 5 TON**
25.5 x 22 x 30
26 x 22 x 31
47.4
47.4
47.4
1 -
20AMP
& 2
30-AMP
1 -
40AMP
& 2
50-AMP
Note: The 240V element circuts can be connected to 208V in
standard configurations; however, the charging input of the
system will be derated by 25%
