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Model |
4120 |
4130 |
4140 |
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Charging Input (kW) NOTE: Standard configuration (240V) systems can be connected to 208V; however, the charging input of the system will derate by 25%. If 208V specific charging voltage is required, it is available as a special factory order. For 277V systems, refer to the 7100 series. |
14.0 |
19.2 |
24.8 |
28.8 |
37.2 |
38.4 |
45.6 |
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Single Feed: Minimum Circuit Ampacity (240V Systems) (Includes 25% Derate for Continuous Load) |
81 |
109 |
138 |
159 |
203 |
209 |
247 |
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Charging Circuits Required (240V Systems-Multiple Feed) Unit is factory configured with multiple line voltage, single phase circuit connections. If single feed to the element and blowers/controls circuits is desired, an optional single feed kit is available. Phase balancing is recommended when making connections in 3-phase applications. |
1-20 AMP |
1-30 AMP |
1-40 AMP |
4-40 AMP |
4-50 AMP |
4-50 AMP |
4-60 AMP |
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Maximum Core and Supply Blower Load (240V Systems) |
7 AMPS |
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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%. |
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Blowers and System Controls Voltage |
240V or 208V |
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Storage Capacity kWh BTU The size and heating ability of the system required for an installation is dependent on the heat loss of the area and the power company’s off-peak hours. In addition, if the unit is not installed within the heated area, heat lost statically must be taken into account when sizing a system. Contact Steffes for assistance in selecting an appropriately sized system. |
120 426,500 |
180 614,160 |
240 818,880 |
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Dimensions without ducting (W x D x H in inches) |
29.2 x 46.5 x 46 |
29.2 x 46.5 x 57 |
29.2 x 46.5 x 68 |
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Duct Openings (inches) Supply Air Outlet 1/2 HP (W x D): 3/4 HP (W x D): Return Air Inlet: Dimension does not include the return air plenum. |
18 x 22.6 22.5 x 22.6 10.5 x 22.6 |
18 x 22.6 22.5 x 22.6 10.5 x 22.6 |
18 x 22.6 22.5 x 22.6 10.5 x 22.6 |
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Approximate System Weight (lbs) Contact a building contractor or architect if you have structural weight concerns of the installation surface selected. Adhere to all national and local electrical and building code placement requirements for electrical heating appliances. |
485 |
565 |
625 |
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Approximate Brick Weight (lbs) |
1,782 |
2,574 |
3,366 |
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Approximate Installed Weight (lbs) |
2,267 |
3,139 |
3,991 |
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Number of Brick Whole Brick Half Brick |
105 6 |
150 12 |
198 12 |
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Return Air Plenum 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. 1/2 HP Maximum Coil Size Capacity: 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.
Front Access Dimensions: Inner Dimensions: (W x D x H in inches) |
1.5 to 5 ton 25.5 x 22 x 30 26 x 22 x 31 |
1.5 to 5 ton 25.5 x 22 x 30 26 x 22 x 31 |
1.5 to 5 ton 25.5 x 22 x 30 26 x 22 x 31 |
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