UBSRD-HT and UBSRD-HT1 Remote Drive Upblast Propeller Roof Exhaust Fans for Heat and Smoke Removal

Roof Propeller Fan Series

UBSRD-HT Model

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

cULus

Model Overview

UBSRD-HT and UBSRD-HT1 are available in 24, 30, 36, 42, 48, 54 and 60 inch sizes. Horsepower and CFM range to 52,000 CFM and 10HP. These units have been designed and tested for emergency heat and smoke removal. This design also lends itself to everyday non-emergency high capacity industrial and commercial roof exhaust applications. These fans successfully passed heat tests of 1000°F for fifteen (15) minutes, and 500°F for over four (4) hours by an independent testing agency. UBSRD-HT and UBSRD-HT1 exceed 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 fire emergency. The upblast configuration exhausts heat and smoke high above the roof line aiding in the access and capabilities of firefighters. Unlike complete design dependence on gravity vents which are sometimes limited by air temperature and wind velocity, the UBSRD-HT and UBSRD-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.

1-year fan housing and motor warranty

Size CFM Range Max SP
24L 4,977 to 8,800 5/8"
30L 7,404 to 14,235 1/2"
30H 11,156 to 17,664 3/4"
36L 6,217 to 19,128 1/2"
36H 12,076 to 22,599 3/4"
42L 11,847 to 25,056 1/2"
42H 18,996 to 30,440 3/4"
48L 15,444 to 31,937 5/8"
48H 24,225 to 40,214 3/4"
54L 16,227 to 36,726 1/2"
54H 22,967 to 45,565 3/4"
60L 18,214 to 50,459 5/8"
60H 27,799 to 25,173 3/4"
Dimensional Drawing for the UBSRD-HT Model

Dimensional data is displayed in inches.

Size A B C D E F G H I
24 30 49 22 2 17-1/2 15 29-1/2 28-1/2 25-1/2
30 36 52 22 2 17-1/2 15 35-1/2 34-1/2 31-1/2
36 42 58 22 2 17-1/2 15 41-1/2 40-1/2 37-1/2
42 48 61 22 2 17-1/2 15 47-1/2 46-1/2 43-1/2
48 54 64 22 2 17-1/2 15 53-1/2 52-1/2 49-1/2
54 60 67 22 2 17-1/2 15 59-1/2 58-1/2 55-1/2
60 66 70 22 2 17-1/2 15 65-1/2 64-1/2 61-1/2

Additional accessories are available for certain products. Contact your S&P Representative for more information about these accessories.

Standard Accessories

Roof Curb  
Outlet Guard  
Disconnect Switches  
Propeller Side Safety Guard  

General Catalog Section
Submittal (UBSRD-HT)
Submittal (UBSRD-HT1)
Instruction and Operation Manual

  • General/Clean Air
  • Contaminated Air
  • Smoke Control (UL)
  • High Temperature above 200°F