Markel Electric Wall Heaters Commercial: Markel E3321TD-RP, Markel E3323TD-RP, Markel E3326TD-RP, Markel E3327TD-RP, Markel HF3324TD-RP, Markel HF3326TD-RP, Markel G3323TD-RP, Markel G3324TD-RP, Markel G3325TD-RP, Markel G3326TD-RP, Markel G3327TD-RP

Furnish and install Heavy-Duty Forced Air wall heaters, where specified.  The heaters shall be constructed of a heavy 18 Gauge steel housing with an extended aluminum frame.  The rough-in dimensions are 19-5/16'' high x 14-3/16'' wide x 4'' deep.  The units shall be available in ratings from 750 to 4800 watts at 240, 208, and 277 volts. The heaters shall have low-speed 600 RPM, 4-pole motor which drives a vane axial blower to deliver a quiet 175 CFM of down flow air. The heating element shall be of the sealed tubular type with large, parallel steel fins for quick heat transfer.  Unit shall have as a standard, a thermal overload cut-off for added safety, fan delay switch and built-in tamperproof thermostat which shall be calibrated to provide a range of 55 degrees Fahrenheit to 85 degrees Fahrenheit and a manual disconnect switch.