©2014 – 2020 Twin City Fan Companies, Ltd.
Models: BSBP, BSDDP
Aerovent Catalog 172 provides additional information on this equipment. This catalog
can be found at www.aerovent.com or by contacting your local Aerovent sales representative.
Model Nomenclature
BSBP
BSDDP
BSBP - E - 24 - B - 1 - 05 - 25
Model
BSDDP = Wall Mounted Fan, Direct Drive
BSBP = Wall Mounted Fan, Belt Driven
E = Exhaust, S = Supply
Fan Size
Impeller Type
L1 & L2 = Level 1 & Level 2, Fabricated Steel, Fixed Pitch (5-Bladed)
B = Cast Aluminum, Adjustable Pitch (4-, 5- and 6-Bladed)
E = Cast Aluminum, Adjustable Pitch (4- and 8-Bladed)
C = Cast Aluminum, Adjustable Pitch (4- and 6-Bladed)
Z = Fabricated Steel, Fixed Pitch (5-Bladed)
Hub Designation (B Impellers Only)
No. of Blades
Impeller Blade Angle (B, C, E and Z Impellers Only)
Throughout this manual, there are a number of HAZARD WARNINGS that must be read and adhered to in order
to prevent possible personal injury and/or damage to equipment. Two signal words "WARNING" and "CAUTION"
are used to indicate the severity of a hazard and are preceded by the safety alert symbol.
WARNING
Used when serious injury or death MAY result from misuse or failure to follow specific instructions.
CAUTION
Used when minor or moderate injury or product / equipment damage MAY result from misuse or failure to follow
specific instructions.
NOTICE
Indicates information considered important, but not hazard-related.
It is the responsibility of all personnel involved in installation, operation and maintenance to fully understand the
Warning and
Caution procedures by which hazards are to be avoided.
General Installation, Operation and Maintenance Instructions For Aerovent Products
IM-172
December 2020
Wall Mounted Fans
