 Marley Engineerd Products |
Product Description:
Explosion proof unit heaters are designed to heat areas classified as hazardous locations designated as Class I, Group C & D Division 1 & 2 or Class II, Groups E, F and G with a T3B ignition temperature code rating (329ºF, 165ºC) or higher to provide primary or supplementary heating for comfort or freeze protection. Typical applications involve oil refineries, sewage treatment plants, petrochemical plants, oil rigs, unattended pumping stations, chemical storage and handling facilities, paint storage areas and countless other hazardous areas covered by these classifications.
CONTROLS - Prewired, self-contained control center. Standard controls include automatic reset thermal limit, a magnetic contactor and 24 volt control circuit transformer.
HEAT EXCHANGER - Advanced design allows lower operating temperatures from the liquid to air heat exchanger with steel tubes, aluminum fins, a non-toxic heat transfer fluid, and a pressure relief plug.
OPTIONAL CONTROLS - Includes a factory built-in thermostat, disconnect switch, fan selector switch, 120V control circuit and pilot light.
HIGH LIMIT CUTOUTS - A manual reset high limit cutout unit is standard. (An additional automatic reset high limit cutout is available as an option.)
FAN & MOTOR - Ball bearing permanently lubricated explosion proof motor has built-in thermal overload protection.
CABINET - Powder coated heavy gauge steel cabinet surrounding a 14 gauge heavy-duty steel frame which supports internal components.
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