Product Overview

A heavy-duty, UL 705–listed belt‑drive fan designed for clean‑air ventilation in rooftops. Ideal for spaces like offices, restrooms, laundry rooms, or dish areas that need downward discharge through a roof-mounted curb solerpalau-usa.com+15Main Website+15WebstaurantStore+15.

🔧 Key Specifications

• Airflow: 800 CFM @ ~0.25″ SP

• Speed: 1750 RPM

• Motor: ¼ HP, single‑phase (115 V or 230 V)

• Construction:

  • Heavy‑gauge aluminum housing with rolled-bead reinforcement

  • Backward‑curved, non‑overloading impeller—precision-balanced for quiet, vibration-free operation canarm.com+10Main Website+10Main Website+10Ars Technica

• Roof Curb Compatibility: Fits 19.5″ × 19.5″ curb

• Certifications: UL 705 listed for commercial general exhaust Grainger+8Main Website+8Main Website+8

• Warranty & Origin: 2‑year warranty; Made in USA Greenheck-USA+6Grainger+6R&S Manufacturing and Sales+6

✅ Ideal Applications

• Non-grease ventilation: Suitable for dishwashers, kitchens without grease, general-purpose clean air exhaust Main Website+6WebstaurantStore+6Greenheck-USA+6. Not recommended for commercial grease-laden kitchen hoods.

• Roof-mounted only: This downblast fan directs air downward; for wall-mount, use an upblast unit instead Greenheck-USA+13Main Website+13solerpalau-usa.com+13.

• Precise functionality: Recommended for 3’–4′ hood installations or small commercial areas.

🌟 Highlights

• Quiet operation with belt-drive and vibration-isolated frame

• Durable aluminum housing and curb cap for rooftop resilience

• Field-adjustable belt pulleys allow tuning airflow to match duct resistance Main Website+15Greenheck-USA+15canarm.com+15

• Easy maintenance: Weather-tight motor compartment, quick-release fasteners, and balance‑tuned impeller

🛠️ Installation Essentials

• Requires hard-wired electrical; cord not included WebstaurantStore+1solerpalau-usa.com+1

• Must be paired with a 19.5″ × 19.5″ roof curb for proper installation Grainger+10Main Website+10WebstaurantStore+10

• Not suitable for wall mounting due to downblast design WebstaurantStore+15Main Website+15R&S Manufacturing and Sales+15

🔍 Comparison & Brands

• Greenheck GB model offers similar belt-drive downblast options in a range of 800–1100 CFM, with variable-pitch pulley models and UL/cUL certification Main Website+10Greenheck-USA+10R&S Manufacturing and Sales+10.

• PennBarry Domex and S&P/Soler & Palau SDB also provide belt-drive downblast panels but are generally offered in broader CFM ranges Greenheck-USA+3engineeringair+3Greenheck-USA+3.