Exhausto BESF 146, Installation & Operating Manual

Page: 3 / 16

3/16
1. Product Information
1.1 Function
Use EXHAUSTO Model BESF is a box ventilator that can be used for the movement of air in exhaust and air
supply systems where no explosive gases are present. The ventilator cannot be used for transport of
large particles. It is designed to provide a high capacity at a high static pressure.
The ventilator can be installed indoors as well as outdoors. No special treatment or preparation is
required for weather proofing.
Suitable uses include, but are not limited to: comfort ventilation, residential kitchen ventilation,
exhaust and air supply.
The exhaust temperature must be above 10°F(-12°C) but should not exceed 175°F(80°C). The ambient
temperature must be within -20°F(-30°C) and 105°F(40°C).
Construction The ventilator housing is made of galvanized steel and insulated with fiber insulation. The
collars are fitted with silicone seals to assure a tight assembly. The motor is a direct drive, variable
speed class B insulated type. It has permanently lubricated, sealed ball bearings and is maintenance
free.
Listings EXHAUSTO Model BESF is tested and listed to UL 705, Standard for Power Ventilators.
The BESF can be used as a component in a MCAS, Modulating Combustion Air System. The listings of
this system incorporates the BESF Box Ventilator.
Do not use with explosive gases. Do not use for transport of large particles.
1.2 Components
The box ventilator consists of the following components:
a. Housing f. Locking hinge
b. Access door g. Door handle
c. Motor h. Support legs with vibration dampers (2)
d. Centrifugal impeller i. Sheet metal screws (4)
e. Ventilator housing k. Door switch (optional)
Fig. 1
+10°F - +175°F
(-120°C - +80°C)
-20°F - +105°F
(-30°C - +40°C)