Soler Palau SDB12QH1S Downblast Belt Drive Roof Exhauster 12 in

Product Description

The SOLER PALAU SDB12QH1S is a downblast belt drive centrifugal roof exhauster designed for continuous-duty commercial ventilation. It uses a 12-inch backward inclined wheel spinning at 1750 RPM to move up to 1925 CFM at zero static pressure, with a maximum static pressure rating of 1-1/4 inches WG. The belt drive configuration keeps operating RPM lower than direct drive alternatives, which reduces sound output to a rated 16 sones at 1/4-inch static pressure. The unit is built for roof mounting, placing it close to the ventilated space and allowing shorter duct runs for more efficient airflow. A 1/2 HP single-speed open drip-proof motor powers the unit, and the cover removes easily for motor access during maintenance. Heavy-duty construction supports long service life in demanding commercial settings.

The SDB12QH1S suits commercial facilities requiring removal of relatively clean exhaust air. It is compatible with both ducted and non-ducted applications, making it adaptable across a range of building types including offices, retail spaces, light industrial facilities, and schools. The unit mounts on a standard roof curb opening of 15.5 inches. An optional 100070 Automatic Belt Tensioner is available and must be factory-ordered at the time of purchase to prevent over-tensioning of drive components. Licensed HVAC contractors and mechanical contractors typically handle installation and commissioning of commercial roof exhausters of this class.

Key Features

• Backward inclined wheel design supports non-overloading performance across the fan curve
• Belt drive reduces operating RPM and lowers sound levels compared to direct drive units
• Rated 1925 CFM at zero static pressure with up to 1-1/4 inches WG maximum static pressure
• Single-speed open drip-proof motor with tool-accessible cover for field maintenance
• Housing includes birdscreen, stainless steel exterior fasteners, and a disconnect
• AMCA Air and Sound Licensed and UL 705 Listed for verified performance and safety compliance
• Optional 100070 Automatic Belt Tensioner available as a factory-installed accessory

Compatibility

The SDB12QH1S is documented as a compatible replacement for Greenheck GB, Loren Cook ACEB, Pennbarry DX, Carnes VEBX, Acme PRN, and Fantech 5BDD series belt drive downblast roof exhausters. Verify curb opening dimensions and electrical requirements before substitution.

Installation Notes

Installation is typically performed by licensed mechanical or HVAC contractors in accordance with local mechanical codes and SMACNA guidelines. Disconnect and lock out all electrical power at the service panel before servicing the unit or accessing internal components. Confirm roof curb dimensions match the 15.5-inch required roof opening prior to setting the unit. Do not operate the exhauster without the birdscreen and all fasteners properly secured.

Technical Specifications

• Product Type: Commercial Exhauster
• Exhaust Type: Downblast
• Drive Type: Belt Drive
• Wheel Size: 12 inches
• CFM at Zero Static Pressure: 1925 CFM
• Max Static Pressure: 1-1/4 inches WG
• Horsepower: 1/2 HP
• Max BHP: 0.49
• Motor Speed: 1750 RPM
• Sound Level: 16 sones at 1/4-inch SP
• Voltage: 115 volts
• Roof Opening: 15.5 inches
• Width: 27.625 inches
• Depth: 27.625 inches
• Height: 31.75 inches
• Net Weight: 100 pounds
• Installation: Roof Mount
• Certifications: AMCA Air and Sound Licensed, UL 705 Listed

Standard Information

• Brand: SOLER PALAU
• Manufacturer Part Number: SDB12QH1S