INSTALLATION
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 or serviced by a qual- ified person in accordance with the National Electrical Code, NFPA 70.
Wiring Entry |
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1/4” | One Hole Each End |
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| 1/2” 14 N P S L |
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Interlocking |
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Connector (optional) | |||
Housing | |||
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| Mounting | |
End Plate |
| Clamp | |
| Assembly | ||
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Terminal Block |
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Terminal Cover |
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Element |
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Polished Aluminum Reflector |
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Figure 1 — Heater Parts and Dimensions | |||
1.These radiant heaters are designed for indoor installation only.
2.Clamps — Heaters are mounted by means of the mounting clamp and 3/8” bolt assembly which is used as shown in Figure 2. Clamp assembly may be attached to heater by sliding over end or by snapping over top of extruded frame section at any point along its length. (See Figure 3.) For proper heater support, the maximum distance between clamps must not exceed 48”. On
Figure 2 | Figure 3 |
3.Mounting Holes — When heaters are mounted adjacent to each other in the same plane, note that distance between mounting holes on framing to support heaters will be 3- 11/16”minimum. When heaters are not in the same plane, i.e. set at an angle to one another, distance between mounting holes in framing will be either greater or less than
4.Framing — Where an extensive installation is being made, the use of continuous slot metal framing manufactured by others will be of assistance in saving time and money. The framing is reusable.
5.Reflector Spacer Sheets — Where heaters are not mounted side by side (see Figure 4), reflector spacer sheets can be used between heaters. These reflector spacer sheets and companion reflectors consisting of an extruded aluminum housing with reflector sheets and mounting clamps are available. Check factory.
Mounting Frame
Insulation
Reflector
Spacer Sheet
Figure 4
6.Insulation — Where unusually high work temperatures are encountered, it may be desirable to insulate backs of heaters with
7.Ventilation — Where solvents, water, etc. are being evaporat- ed from work in process, it is necessary to provide substantial quantities of ventilation air to carry away the resulting vapors.
FIRE HAZARD. Since Radiant heaters are capable of developing high temperatures, extreme care should be taken to:
A. Keep combustible materials at least 6” away form sides and back of heater housing and its sup- porting brackets and spaced far enough in front of heater (heating element side) so thermal radiation from the elements will not ignite combustible materials.
B. If combustible materials are being processed, stoppage of process should initiate immediate heater shutdown and interception of residual heat from radiant heaters (use radiation baffles or move heaters away from work).
C. In the case of solvents of an explosive nature, ventilation air must be in sufficient volume to dilute the solvent vapor so that explosive mixtures cannot occur, refer to NFPA 86, Standard for Ovens and Furnaces.
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