54" Smoke & Heat Removal Belt Drive Roof Exhauster | 1025 RPM | Canarm RTA54SHT31500

The RTA-SH Series Roof Exhauster – Belt Drive is a high-performance roof ventilation solution engineered for commercial, industrial, and institutional buildings. Designed for clean, dry air applications, the RTA-SH series is also capable of exhausting smoke during fire events, making it an ideal component in smoke control and life safety systems.

Constructed with durable, high-quality materials, the RTA-SH features a heavy-gauge steel propeller, galvanized steel wind band, and rain-proof butterfly dampers to withstand harsh weather conditions. The belt-drive configuration positions pulleys and belts out of the airstream, while the TEFC ball bearing motor is located outside the air path, easily accessible from the roof for maintenance.

The RTA-SH series is designed to meet high heat safety standards, with the capacity to operate at 500°F for 4 hours and 1000°F for 15 minutes, ensuring compliance with fire and smoke control system requirements. Spring-loaded arms automatically release at temperatures above 165°F to force open dampers, providing rapid smoke exhaust during emergencies. Additionally, the arms are rated to withstand a snow load of 10 lbs/ft², ensuring reliable operation in winter conditions.

With high-heat cast iron pillow block bearings complete with external grease fittings, this roof exhauster delivers durable, long-lasting performance in normal and emergency ventilation scenarios. The RTA-SH Series Roof Exhauster is a code-compliant, reliable, and heavy-duty solution for building ventilation and fire safety.

Technical Specifications

• Brand / Series: RTA-SH

• Device Type: Roof Exhauster, Belt Drive

• Application: Normal use in clean, dry air; smoke exhaust during fire events

• Ambient Temperature Rating: Maximum 93°C (200°F)

• High Heat Compliance: 500°F for 4 hours; 1000°F for 15 minutes

• Motor: TEFC ball bearing, out of air stream, roof-accessible

• Propeller: Heavy gauge steel

• Bearings: High-heat cast iron pillow block bearings, external grease fittings

• Dampers: Galvanized steel, rain-proof butterfly type

• Belt & Pulleys: Out of air stream

• Spring-Loaded Arms: Release above 165°F to open dampers

• Snow Load Rating: 10 lbs/ft²

• Typical Applications: Commercial roof ventilation, smoke control, emergency fire exhaust systems