Table 2 - Electrical Data
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| Power Supply Circuit |
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| Contactor |
| Motor |
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| Holding Coil |
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Model | kW | Volts | Phase |
| Line | Line | No. | Minimum | Volt Ampheres |
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| Amps | Wire Size | Circuits | Conduit | (Note 3) | Volts | H.P. | Phase | ||||
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| (Note 1) | (Note 2) | Size † |
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| Inrush | Sealed | ||||||
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| 208 | 1 |
| 25 | 8 | 1 | 3/4” |
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| 208/240 |
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| 208 | 3 |
| 15 | 12 | 1 | 1/2” |
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| 280/240 |
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5 | 240 | 1 |
| 22 | 10 | 1 | 1/2” | 60 | 9 | 208/240 | 1/25 | 1 | |
240 | 3 |
| 13 | 12 | 1 | 1/2” | 208/240 | ||||||
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| 277 | 1 |
| 19 | 10 | 1 | 1/2” |
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| 277 |
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| 480 | 3 |
| 7 | 14 | 1 | 1/2” |
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| 480 |
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| 208 | 1 |
| 37 | 6 | 1 | 3/4” |
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| 208/240 |
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| 208 | 3 |
| 22 | 10 | 1 | 1/2” |
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| 208/240 |
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7.5 | 240 | 1 |
| 32 | 8 | 1 | 3/4” | 60 | 9 | 208/240 | 1/25 | 1 | |
240 | 3 |
| 19 | 10 | 1 | 1/2” | 208/240 | ||||||
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| 277 | 1 |
| 28 | 8 | 1 | 3/4” |
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| 277 |
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| 480 | 3 |
| 10 | 14 | 1 | 1/2” |
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| 480 |
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| 9.8 | 208 | 1 |
| 48 | 6 | 1 | 3/4” |
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| 208/240 |
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| 208 | 3 |
| 29 | 8 | 1 | 3/4” |
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| 208/240 |
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10 | 240 | 1 |
| 43 | 6 | 1 | 3/4” | 60 | 9 | 208/240 | 1/25 | 1 | |
240 | 3 |
| 25 | 8 | 1 | 3/4” | 208/240 | ||||||
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| 277 | 1 |
| 37 | 6 | 1 | 3/4” |
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| 277 |
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| 480 | 3 |
| 13 | 12 | 1 | 1/2” |
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| 480 |
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Notes: | 3. | Standard units have one contactor. Units with separate fan | |
1. | Includes Fan Motor Amps. |
| motor control use two contactors. |
2. | Use 75˚C Wire - Copper Conductors only. | † | Conduit knockout location - top of Junction Box. |
IMPORTANT
Failure to understand and follow these installation instructions and the “WARNING” notes therein may result in serious per- sonal injury from electrical shock, or from the heater falling due to faulty installation.
sonal in accordance with the National Electrical Code, NFPA 70.
The heater must be mounted at least 7’ above the floor to prevent accidental contact with the heating elements or fan blade which could cause injury.
FIRE/EXPLOSION HAZARD. This heater is not intended for use in hazardous atmospheres where flammable vapors, gases, liquids or other com- bustible atmospheres are present as defined in the National Electrical Code. Failure to comply can result in personal injury or property damage.
ELECTRIC SHOCK HAZARD. Disconnect all power before installing or servicing heater. Failure to do so could result in personal injury or property dam- age. Heater must be installed by a qualified per-
The ceiling structure, the brackets, hangers or chains used to sus- pend the heater, and the anchoring provisions must be of sufficient strength to support the combined weight of the heater installation (48 pounds for
Prior to operating the heater verify that the fan hub setscrews are tightened and the
On models connected to
First stage of thermostat must be connected to terminals C1 and C2 to insure proper operation of overheat protective devices.
INSTALLATION
ELECTRIC SHOCK HAZARD. Any installation involving electric heaters must be performed by a qualified person and must be effectively grounded in accordance with the National Electrical Code to eliminate shock hazard.
1.Heater should be positioned with the junction box facing away from walls to provide easy access for servicing relay(s) mounted within. See Figure 1.
Mount the heater for down discharge only. Failure to comply may result in personal injury or property damage.
2.It is important that the 12” minimum dimension shown in Figure 1 be maintained to make it possible for a serviceman to remove the fan motor, if necessary, without moving the heater from its mounting.
The heater must be mounted at least 7’ above the floor to prevent accidental contact with the heating elements or fan blade which could cause personal injury.
The ceiling structure, the brackets, hangers or chains used to sus- pend the heater and the anchoring provisions must be of sufficient strength to support the total weight of the heater installation (48 pounds for
3.The heater to be mounted to the ceiling by attaching rigid angle brackets, hangers, or chains to the four mounting holes on the top of the heater case using four 5/8” bolts (by others). See Figures 1 and 2.
Note: Brackets, hangers, or chains to support the heater are supplied by the customer.
4.All wiring should be done in accordance with local codes and the National Electrical Code by a qualified person.
