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HOMEOWNER

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Before operating your Whole House Fan (WHF), always OPEN windows. See the WHF 
Owners manual for more information. Your A/C should be off during WHF operation. 

To change the Timer Hours, PRESS and HOLD the 
TIMER 

 to select the timer period.  The LEDs 

will cycle from 2 to 4 to 6 to 8 hours while the Timer 
switch is pressed.  RELEASE the TIMER 

 when 

the desired number of hours is indicated. If the WHF was 
on, it will remain on. If the WHF was off, setting the timer 
will turn the WHF on.

SWITCH

SWITCH

To view the WHF speed, PRESS the SPEED 

 

and the LED corresponding to the selected speed will be 
lit. The wall timer will then return to displaying the timer 
hours.

SWITCH

To change the WHF speed, PRESS and HOLD the 
SPEED 

 to select LO, MED or HI speed.  The 

LEDs will cycle between the available speeds while the 
Speed switch is pressed. RELEASE the SPEED 
SWITCH when the desired speed is indicated.

SWITCH

The Speed switch will not change the speed and the 
speed will remain as HI.

The Speed switch will cycle between LO and HI.

The Speed switch will cycle between LO, MED and HI.

Changing the Timer Hours

Viewing the Selected WHF Speed

Changing the WHF Speed

If you have a Single Speed WHF:

If you have a Two-Speed WHF:

If you have a Three-Speed WHF

When the WHF is OFF, the LEDs on the wall timer are 
not lit.

Turning the WHF ON or OFF

To turn the WHF ON, press the TIMER 

. The 

WHF will go ON and an LED will indicate the number of 
timer hours set, either 2, 4, 6 or 8. 

To turn the WHF OFF, press the TIMER 

. The 

WHF will go OFF and no LEDs will be lit.

SWITCH

SWITCH

The wall timer remembers the last timer setting and 
when the WHF is turned on, the wall timer will use this 
timer setting.

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Summary of Contents for FC3JU

Page 1: ...nding Made in USA QUICK START FOR HOMEOWNERS Before operating your Whole House Fan WHF always OPEN windows See the WHF Owners manual for more information Your A C should be off during WHF operation i...

Page 2: ...or HI speed The LEDs will cycle between the available speeds while the Speed switch is pressed RELEASE the SPEED SWITCH when the desired speed is indicated SWITCH The Speed switch will not change the...

Page 3: ...ay connections makes upgrading simple and quick iMAKS Add On Kit For WHF control using the wall timer or WiFi App Temperature control improves comfort and energy efficiency by never overcooling the sp...

Page 4: ...ructions carefully including those included with the whole house fan Follow all local electrical codes during installation All wiring must conform to local and national electrical codes i ATTENTION IN...

Page 5: ...el FC3JU Ground screw Electrical box on WHF PO W E R PO W E R WH F Power Cord or Romex For 2 speed WHFs the yellow wire is not used and needs to be cut off at the PC Board Use wire nuts to connect the...

Page 6: ...WHF High Speed WHF Low Speed WHF Low Speed WHF ed Speed Connects Connects Not Used WHF Neutral and WHF Neutral and 120VAC Neutral 120VAC Neutral WHF Ground and WHF Ground and Power Ground Power Ground...

Page 7: ...hes are pressed Releasing the switches after one blink sets the WT3 for single speed High operation Releasing after two blinks sets the WT3 for 2 speed High and Low operation and releasing after 3 bli...

Page 8: ...trical box and connected to the damper actuators and either 24VAC or 120VAC depending on the actuators and corresponding Damper Control being used See DCXX datasheet for more information The number of...

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