BIG ASS FANS Basic 6 - Page 12

WWW.BIGASSSOLUTIONS.COM © 2016 DELTA T CORP. ALL RIGHTS RESERVED.
6
Clearance from HVAC equipment and radiant heaters
The fan must be installed at the minimum distances shown below in relation to HVAC (Heating, Ventilation, and
Cooling) systems.
HVAC Equipment
≥1x fan diameter if at the same level or above diuser. ≥2x fan diameter if below diuser.
Refer to the illustrations below.
Radiant Heaters
See the manufacturer’s requirements for the minimum clearance to combustibles.
Fan located at or above HVAC discharge or intake
If the fan is at the same level or above the HVAC diuser, it must have a clearance of ≥1x fan’s diameter.
Fan located below HVAC discharge or intake
If the fan is located below the HVAC diuser, it must have a clearance of ≥2x the fan’s diameter.
≥ 2 x fan’s diameter
40 ft (12.1 m)
Diameter: 20 ft (6.1 m)
HVAC
Diuser
HVAC
Diuser
≥ 1 x fan’s diameter
20 ft (6.1 m)
Diameter: 20 ft (6.1 m)