UBSRD and UBSRD-PRemote Drive Upblast Propeller Roof Exhaust Fan
Roof Top Fan Series
Model Features
- Exhaust air up to 67,000 CFM in static pressure applications up to 1" w.g.
- Motor and drives are located outside of the exhaust airstream
- UBSRD is suited for removal of heated or contaminated air
- Capable of continuous operation exhausting air up to 200°F
- Belt drives permit easy performance adjustments when needed
- cULus 705 Listed
Model Overview
Model UBSRD units are high capacity, belt driven roof mounted exhausters rated from 3,700 to 67,000 CFM. The motor and drives are located outside of the exhaust airstream, making these units especially suited for the removal of heated or contaminated air from commercial and industrial buildings or processes where these conditions exist. All models are capable of continuous operation exhausting air to 200°F.
The remote drive construction allows for easy rooftop belt and motor access for maintenance. For increased air performance (in clean conditions) with the same easy maintenance access, the UBSRD is available without the belt and bearing enclosures. Straight-through air flow design results in maximum exhaust efficiency. During operation, high air flow velocity opens butterfly dampers and prevents rain or snow from entering. Dampers close and cover the venturi opening when unit is not in use.
The roof mounted location eliminates interference with processes and equipment inside the building. It also permits locating the exhauster over a source of heated or contaminated air, allowing direct upward venting to the outside, unlike an wall mounted exhauster which may move contaminated air through adjacent work spaces.
The UBSRD-P is an excellent choice for applications that require access to the internal components of the fan from the roof, and do not need UL793 high temperature components. The UBSRD-P also has a highly efficient polypropylene propeller that can withstand most applications.
2-year fan housing warranty, 1-year motor warranty
UBSRD Specifications
| Size | Max HP | CFM Range | Max SP | Avg. Ship Weight (lbs) |
| 24L | 1-1/2 HP | 4977 to 8800 | 5/8" | 310 |
| 30L | 2 HP | 7404 to 14235 | 1/2" | 340 |
| 30H | 5 HP | 11156 to 17664 | 3/4" | 340 |
| 36L | 3 HP | 6217 to 19128 | 1/2" | 430 |
| 36H | 5 HP | 12076 to 22599 | 3/4" | 430 |
| 42L | 5 HP | 11847 to 25056 | 1/2" | 490 |
| 42H | 7-1/2 HP | 18996 to 30440 | 3/4" | 490 |
| 48L | 5 HP | 15444 to 31937 | 5/8" | 640 |
| 48H | 10 HP | 24225 to 40214 | 3/4" | 640 |
| 54L | 5 HP | 16227 to 36726 | 1/2" | 840 |
| 54H | 10 HP | 22967 to 45565 | 3/4" | 840 |
| 60L | 7-1/2 HP | 18214 to 50459 | 5/8" | 1,000 |
| 60H | 10 HP | 27799 to 25173 | 3/4" | 1,000 |
UBSRD-P Specifications
| Size | Max HP | CFM Range | Max SP | Avg. Ship Weight (lbs) |
| 24 | 1-1/2 HP | 3,739 to 10,137 | 3/4" | 310 |
| 30 | 3 HP | 5,160 to 16,049 | 1" | 340 |
| 36 | 5 HP | 6,846 to 23,564 | 1" | 430 |
| 42 | 7-1/2 HP | 10,526 to 35,033 | 1" | 490 |
| 48 | 10 HP | 8,468 to 47,896 | 1" | 640 |
| 54 | 10 HP | 15,138 to 52,973 | 1" | 840 |
| 60 | 10 HP | 15,799 to 67,191 | .875" | 1,000 |
| Model 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 S&P Representative for more information about these accessories.
Standard Accessories
| Roof Curb | |
| Outlet Guard | |
| Disconnect Switch | |
| Magnetic Latches | |
| Non-insulated Belt Cover | |
| Propeller Blade Side Safety Guard | |
| Extended Grease Lines |
- General / Clean Air
- Contaminated Air
- High Temperature Above 200°F