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B. For ceiling heights of 12 feet or less, maximum mounting height is determined by use of ceiling mounting brackets offered with these heaters. Minimum spacing to ceiling is 14-1/4”. C. In either case the minimum mounting height is 7 feet from floor to bottom of heater. (See Figures 1 and 2.) 2. Spacing to adjacent walls A. Rear of case to back wall 11” minimum. B. Side of case to side wall 12” minimum. 3. If two or more units are operated in the same enclosed space, their discharges should be directed to aid in development of mass air movement for uniform heat dispersal. 4. Controlling thermostats to individual heaters should be mounted at shoulder height on inside walls or columns. WIRING Note: All wiring should be done in accordance with local codes and the National Electrical Code by a qualified person. WARNING: Hazard of Electric Shock. Any installation involving electric heaters must be effectively grounded in accordance with the National Electrical Code to eliminate shock hazard. 1. Connect heater according to the voltage and frequency specified on the nameplate and using the appropriate wiring diagram (Figures 3 thru 14). Note: Be sure to check the voltage rating of the fan motor since it is not necessarily the same as the heater circuit. 2. If an external transformer is used to step down the voltage for operating the fan motor, use appropriate wiring diagram (Figures 7 thru 14). 3. Heaters are not provided with a control switch and should be controlled by externally mounted disconnect switches and/or separately mounted thermostat and control switch as recommended in appropriate wiring diagrams (Figures 3 thru 14). Key to proper wiring diagram is the part number (P/N) of internal wiring diagram located on inside of the hinged cover of the terminal box. 4. Protection against overheating is provided by an internal automatic thermal cutout which opens the electric circuit if the normal air-flow is restricted or stopped. Cutout automatically energizes heater on removal of the obstruction. 2 WIRING DIAGRAMS Figure 4 Figure 3 3 WIRING DIAGRAMS Figure 6 Figure 5 4 WIRING DIAGRAMS Figure 8 Figure 7 5 WIRING DIAGRAMS Figure 10 Figure 9 6 WIRING DIAGRAMS Figure 12 Figure 11 7 WIRING DIAGRAMS Figure 14 Figure 13 8 OPERATION 1. DANGER: Hazard of Fire. 2. Do not operate heater in corrosive atmosphere conditions to A. Do not restrict air flow through heater by placing fabric or avoid destructive damage to heater. other obstructions in front of or behind the heater. Increased 3. Avoid operating heater in dusty environment which can foul discharge temperatures can discolor or ignite some heat heater fins to dissipate heat or impair motor ventilation leading sensitive combustible materials. to excessive operating temperatures. B. Do not operate heater in areas where combustible lint, dust 4. Do not operate heater in ambient temperatures exceeding 90OF. or flammable vapors, gases or liquids are present. MAINTENANCE WARNING: Turn off all power to service h...

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