|
Model |
5120 |
5130 |
5140 |
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Charging Input 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 kW |
19.2 kW |
24.8 kW |
28.8 kW |
37.2 kW |
38.4 kW |
45.6 kW |
|
Single Feed: Minimum Circuit Ampacity (240V Systems) (Includes 25% Derate for Continuous Load) |
84 AMPS |
110 AMPS |
140 AMPS |
160 AMPS |
204 AMPS |
210 AMPS |
248 AMPS |
| Element Current Draw | 59 AMPS | 80 AMPS | 104 AMPS | 120 AMPS | 155 AMPS | 160 AMPS | 190 AMPS |
|
Element Circuits Required 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 |
|
Pumps & Blowers/Controls Circuit Required |
1- 15AMP (10 AMPS maximum load) |
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Pump Voltage |
120V (Neutral Conductor Required) |
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Blowers/Controls Voltage |
240V or 208V |
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System Dimensions (W x D x H in inches) |
29 x 46.5 x 46 |
29 x 46.5 x 57 |
29 x 46.5 x 68 |
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Storage Capacity 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 kWh (426,500 BTU) |
180 kWh (614,160 BTU) |
240 kWh (818,880 BTU) |
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Approximate Installed Weight 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. |
2,218 lbs |
3,046 lbs |
3,894 lbs |
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Number of Brick Whole Brick Half Brick |
105 6 |
150 12 |
198 12 |
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Pipe Size - Water Inlet/Water Outlet |
1" |
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Output Water Temperature Selection Range |
50°F/10°C - 185°F/85°C |
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Available Maximum Working Pressure Ranges |
20 PSIG requires 30 PSI Pressure Relief Valve (Standard) 60 PSIG requires 75 PSI Pressure Relief Valve (Optional) 125 PSIG requires 150 PSI Pressure Relief Valve (Optional) |
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Minimum Flow Rate (primary loop) |
1 GPM per 10,000 BTU of required output at 20°F temperature rise (10 GPM maximum) |
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Maximum Maintainable Heat Loss - 8 Consecutive Hours |
20,414 |
27,996 |
34,175 |
41,994 |
49,212 |
55,992 |
65,615 |
|
Maximum Maintainable Heat Loss - 12 Consecutive Hours |
30,621 |
41,994 |
45,566 |
62,991 |
65,615 |
83,988 |
87,487 |
|
Maximum Maintainable Heat Loss - 6/4/6/8 Strategy Hours |
30,621 |
41,994 |
54,242 |
62,991 |
81,363 |
83,988 |
99,738 |
|
Heat Exchanger Internal Pressure Drop (assumes 50% Glycol Mix) |
.1 ft @ 2 GPM |
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