background image

2

TIMER - ON - OFF

SPEED

4

LO

6

MED

8

HI

WHF

Smart

Homeowner and Installer Manual

Model WTK WHF Wall Timer Control Kit

For 1, 2 or 3-Speed PSC or ECM Fans

Rev D Apr 2019

The WT3 is a low voltage Wall Timer and Speed 
Control that uses a low voltage cable provided with 
the control that connects to the FC3JU control board 
installed in the electrical box on the WHF. 

The WT3 features a selectable 2, 4, 6 or 8-hour 
timer and Lo, Med or Hi fan speeds.

Easily add a wireless remote control or WiFi control 
to the wall timer installation without any additional 
line voltage wiring in the electrical box on the WHF. 
See page 3 for add on information.

Pat. Pending

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

LEDs display the Timer hours 

or the fan speed.

Can be installed directly to a wall or
in a single gang switch box.

Timer Switch
Press momentarily to stop or start 
Timed WHF operation. Press and 
hold to change the Timer hours.

Speed Switch

Press momentarily to 

display the WHF Speed

Press and hold to 

change the Speed.

For more information on using the WT3, visit the 

eControls WHF Channel

”, WT3 Homeowner Video.

WHF

Smart

C o n t r o l

2

TIMER - ON - OFF

SPEED

4

LO

6

MED

8

HI

WHF

Smart

On initial start up, the timer will default to 4 hours and the speed will default to Hi speed. See page 2 for simple 
instructions on how to set the hours and the speed.

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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