Holiday Announcement

On Wednesday, November 21st, please be informed that JencoFan’s USA Division will close at 2:00 PM EST in observance of Thanksgiving Day. Our offices will reopen and resume production on Monday, November 26th, during regular business hours found here. We wish everyone a safe and Happy Thanksgiving!

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

Roof Propeller Fan Series

UBSRD-HT and UBSRD-HT1 Models

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 Listed

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 normal 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 warranty, 1-year motor warranty

Size CFM Range Max SP
24L 4977 to 8800 5/8"
30L 7404 to 14235 1/2"
30H 11156 to 17664 3/4"
36L 6217 to 19128 1/2"
36H 12076 to 22599 3/4"
42L 11847 to 25056 1/2"
42H 18996 to 30440 3/4"
48L 15444 to 31937 5/8"
48H 24225 to 40214 3/4"
54L 16227 to 36726 1/2"
54H 22967 to 45565 3/4"
60L 18214 to 50459 5/8"
60H 27799 to 25173 3/4"
Dimensional Drawing UBSRD-HT
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"

Note: Additional accessories are available for certain products. Contact your JencoFan Representative for more information about these accessories.

Standard Accessories

Description  
Roof Curb  
Outlet Guard  
Disconnect Switches  
Propeller Side Safety Guard  

Description  
UBSRD-HT and UBSRD-HT1 Catalog Pages  
UBSRD-HT Product Submittal  
UBSRD-HT1 Product Submittal  
UBSRD-HT and UBSRD-HT1 Product IOM  

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