Specification Sheet

367
Features UBSRD-HT UBSRD-HT1
165˚F (74˚C) Fusible Link and
Spring Damper Lifters
•
Belt tube with heat shield • •
Dual Drives • •
High Temperature Bearing
Grease
• •
1 year fan housing warranty, 1 year motor warranty
MODELS UBSRD-HT & UBSRD-HT1
REMOTE DRIVE UPBLAST PROPELLER ROOF EXHAUSTERS
FOR HEAT AND SMOKE REMOVAL
MODEL OVERVIEW
Model UBSRD-HT/HT1 has been designed and
tested for emergency heat and smoke removal. This
design also lends itself to everyday nonemergency
high capacity industrial and commercial roof
exhaust applications. Model UBSRD-HT/HT1
successfully passed heat test of 1000°F for fteen
(15) minutes, and 500°F for over four (4) hours by
an independent testing agency. Model UBSRD-HT/
HT1 exceeds I.R.I (Industrial Risk Insurers) guidelines as “Power Ventilator for Smoke Control Systems.”
The heavy-gauge design allows for years of standard commercial use and the dependability required in
a re emergency. The upblast conguration exhausts heat and smoke high above the roof line aiding in
the access and capabilities of reghters. Unlike complete design dependence on gravity vents which
are sometimes limited by air temperature and wind velocity, the UBSRD-HT/HT1 in conjunction with
gravity vents, will more effectively remove smoke, hot air, and gases when used in a properly designed
system. With the UBSRD-HT1 unit, in the event of electrical failure, the 165°F fusible link will activate
the spring assisted damper doors to provide gravity ventilation. Fan CFM, sizing and location for both
exhaust and supply air are an important part of the overall heat and smoke venting building design
needs. Refer to I.R.I., NFPA (National Fire Protection Association), and local re codes for help in
proper system design. Final approval for the complete system design should be authorized by the local
authority having jurisdiction.
Fan selections are available in 24, 30, 36, 42, 48, 54 and 60 inch sizes. Horsepower and CFM range
to 52,000 CFM and 10HP. Units are tested in accordance with AMCA Standard 301 (sound) and AMCA
210 (air) in an AMCA certied laboratory. Every unit is completely assembled and factory tested for
quality assurance prior to shipment.
MODEL FEATURES
• Exhaust air up to 52,000 CFM in static pressure applications up to 3/4” w.g.
• Motor and drives are located outside of the exhaust airstream
• Designed and tested for emergency heat and smoke removal
• Successfully passed heat test of 1000°F for 15 minutes and 500°F for
over 4 hours
• Belt drives permit easy performance adjustments when needed
• cULus 705 Listed
All specications are subject to change without notice unless approved in submittal by S&P USA.