Installation Instructions

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8
Two Speed Wiring (for STL PRO-2.5) (see Figure C)
1. Using a wire nut, connect the black wire from the power cord and the black wire
from the fan to the black wire from the Hub.
2. Connect the white wire from the power cord and the white wire on the fan to the
white wire from the Hub.
3. Connect the red wire from the fan to the red wire on the hub
4. Connect the yellow wire from the fan to the blue wire on the hub
5. Cap the gray, and yellow wires from the Hub.
6. Ground the green wire from the fan and the green wire from the power cord to
the ground screw in the hub.
Power
Cord
Attach green ground wires to ground screw
All White Common Wires Together
Whole House Fan
POWER STATUS SPEED
JOIN FAN
Power
Cord
Attach green ground wires to ground screw
All White Common Wires Together
Whole House Fan
POWER STATUS SPEED
JOIN FAN
Figure C