HRV hooded roof ventilators are suitable for supply or exhaust applications, and offer aerodynamically superior performance. Constructed with a heavy duty welded steel base and aluminum hood with bird screen, this powerful fan is available in diameters from 24" through 60". The adjustable pitch airfoil axial impeller is constructed of spark resistant die cast aluminum, and is factory set for precise performance matching. HRV hooded roof ventilators are available in either direct drive (HRVD) or belt drive (HRVB) configurations.
Features & Benefits
- Supply or exhaust applications
- Direct drive (HRVD) or belt drive (HRVB) arrangements
- Spark resistant, cast aluminum airfoil axial impeller
- Factory set adjustable pitch blades
- Aerodynamically efficient performance
- Heavy duty welded steel base
- Air dried enamel paint finish
- Aluminum hood with birdscreen
- TEFC industrial duty motor
- Direct drive units are easily maintained – no belts or pulleys
- Belt drive units have self-aligning pillow block bearings
- Belt drive units use v-belt drive for low speed operation
- Sizes range from 24" to 60" diameters
Applications
- Fume and smoke exhaust
- Make-up air
- Heat exhaust
- General ventilation
- Filtered air supply
Accessories / Options
- Filtered intake unit
- Gravity shutter for exhaust only
- Pre-fabricated roof curb
- Custom curb panel to match existing curb
- Epoxy or Eisenheiss coatings
- 2" thick disposable filters, for filtered intake unit
- Variable pitch sheaves for easy and accurate adjustment
- Disconnect switch – mounted, or mounted and wired
- Motor operated damper for supply or exhaust applications
- Explosion proof and special duty motors
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