Full Product Manual

Humidex
15
Installation HCS-BSF
1. To minimize noise propagation, install at least 6 ft. of 6 in. insulated flex between the universal
duct boot (connected to the floor register) and the HCS-BSF.
2. To further decrease noise propagation, 6 ft. of insulated flex can be used on the exhaust side
of the unit. (Not Included)
3. Flex to pipe the HCS-BSF away from the exhaust system. Note the airflow arrow directions
4. If the building codes in your area require a backdraft damper to be installed, it must be placed
on the exhaust side of the booster fan to limit the impact on the total airflow through the
unit.
5. This unit is typically sold with an HCS exhaust system. If this is the case, then the HCS-BSF
system is made to replace your Replenishment vent required in other HCS exhaust systems.
Typical Installation Diagram