Heating Season - BIG ASS FANS Powerfoil 8 Installation Manual

40
Big Ass
speed. Moving at a low speed means less energy used for operation, translating into more energy savings year-round. Follow the
To ensure proper fan rotation:
1. Turn on the fan.
2.
3. If the fan is not rotating counterclockwise, reverse the fan direction by pressing the R/F button on the controller.

Heating season

The Powerfoil ®
fan should be operated continuously during the heating season and should not be operated in reverse (clockwise). Big Ass Fans are
Adjust the fan speed to the appropriate starting fan speed listed in the table below.
Floor-to-ceiling height (ft)
< 40
Stand directly below the tips of the airfoils with hand outstretched. If you feel a draft, slightly decrease the fan speed (0.5). Repeat until
the draft is no longer noticeable.
Cooling season
The cooling effect created by the breeze from the Powerfoil8 fan keeps occupants comfortable with the thermostat at a higher setting.
During the cooling season, every degree higher that the thermostat is reset reduces the energy consumed by the air conditioner by
1.5–2%. To minimize energy usage during the cooling season, operate the fan only when building occupants are present.
Adjust the fan speed to the appropriate starting fan speed listed in the table below.
Floor-to-ceiling height (ft)
< 40
Increase the speed of the fan until desired air speed or maximum fan speed is reached. In air conditioned facilities, increase the
thermostat setting by 2–7°F to save energy.
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12'–24' POWERFOIL
Operating the Fan
Starting fan speed
15 Hz
20 Hz
Starting fan speed
25 Hz
40 Hz
©2012 DELTA T CORP.
® ®
8, 12'–24' POWERFOIL 8PLUS
Ass Fan.
Display %
20–30%
30–40%
Display %
40–50%
60–70%
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