RTA-SH Series Roof Exhausters - Belt Drive

RTA-SH model suitable for normal use in clean, dry air with a maximum ambient temperature of 93º C (200º F). RTA-SH is designed to exhaust smoke in the event of a fire. It is in compliance with smoke control systems requirements of 500ºF for 4 hours and 1000ºF for 15 minutes. Two spring loaded arms are released when temperatures reach above 165ºF to force open the dampers.

• TEFC, ball bearing motor is out of air stream and is accessible from the roof.
• Galvanized steel wind-band and rain-proof butterfly dampers.
• Heavy duty pulleys and belts out of air stream.

High Heat Features.

• Heavy gauge steel prop.
• High heat cast iron pillow block bearings (out of air stream), complete with external grease fittings.
• 500° F for 4 hours and 1000° F for 15 minutes.
• Arms rated for snow load of 10 lbs/ft2.