VentCool WTT User manual

www.fieldcontrols.com
This device MUST be installed by a qualified agency in accordance with the manufacturer’s installation instructions.The definition of
a qualified agency is: any individual, firm, corporation or company which either in person or through a representative is engaged in,
and is responsible for, the installation and operation of HVAC applicances, who is experienced in such work, familiar with all the
precautions required, and has complied with all the requirements of the authority having jurisdiction.
READ THESE INSTRUCTIONS CAREFULLY AND COMPLETELY BEFORE PROCEEDING WITH THE INSTALLATION.
Installed By:_______________________________________ Phone: _____________________ Installation Date: _____________
Please retain these instructions after installation.
The VentCool whole house fan wall control uses temperature or a timer to control the whole house
fan. The wall control is installed in the sleeping space of the home and connects to the FC3JF
already installed on the VentCool whole house fan using a plug&play cable included.
COMPONENTS:
1 - VentCool WTT Whole House Fan Wall Control [WTT] (p/n 580011702)
1 -
VentCool Fan Control Module [FC3JF] p/n (580011701) must be installed on
whole house fan assembly for this wall control (WTT) system to function properly.
50 Foot RJ12 Plug&Play Cable [PNP50] (p/n 580011550)
1 - VentCool Logo cover plate
1 - Mounting hardware kit
1 - Installation and User Manual
**A
WTT
R
INSTALLATION AND USER MANUAL
ON/OFF
SPEED
MODE
HON
SPEED
Indoors
Cool Set To
P/N 780104502 2/20 Rev B
VentCool
In temperature control, the homeowner turns on the whole house fan and sets their comfort
temperature. The VentCool whole house fan will cool the home until the indoor temperature drops
just below the comfort temperature then turn off. A built-in safety timer will turn the fan off the
following morning in case the homeowner forgets. In timer control, the homeowner turns the fan
on and sets the timer interval. The fan will run for the time set then turn off. The WTT wall control is
also used to adjust the fan speed.
Whole House Fan Wall Control

ON/OFF
SPEED
MODE
HON
SPEED
Indoors
Cool Set To
HON
SPEED
Indoors
Timer
Press the MODE key then press either the UP or
DOWN key to switch between Timer Mode and
Temperature Mode.
Press the SPEED key to change the fan speed.
Press ON/OFF to turn the fan on or off.
Press the UP key or DOWN key to adjust
the Timer Hours or the Cool Set To temperature.
Displays the indoor temperature where the remote is
located.
Timer Hours.
UNDERSTANDING YOUR WALL CONTROL
HON
SPEED
Indoors
Cool Set To
1
2
3
4
Key Operation
Cool Set To is the temperature that you want the house
to cool to.
Temperature
control display
Display
1
2
3
4
1
2
3
1
23
Before operating your whole house fan, be sure to open windows and close fireplace dampers.
Refer to your whole house fan manual for more information regarding operating your fan.
The WTT wall control controls the whole house fan using temperature or timer control. Temperature control optimizes your
comfort and energy savings by never overcooling your home and only running the fan when needed.
HOMEOWNER SECTION
This manual is separated into two different sections: one for the Homeowner and one for the Installer.
The Homeowner section contains information on features and operation of the wall control.
page 2 of 8 P/N 780104502 2/20 Rev B

Press the MODE key then press either the or key to select Timer Control (shown below). When switching
between modes, the fan turns off.
Timer Mode operates using a timer set from 1 to 12 hours (factory set to 3 hours). The ON/OFF key is used to start timer
operation. The fan will turn on and run for the time displayed.
ADJUST THE TIMER SETTING
Press and hold the or key to adjust the Timer
Setting.
Press the ON/OFF key to display ON.
START TIMER OPERATION
Select how you would like to operate your fan - Timer or Temperature Mode and follow the simple instructions to
start Timer or Temperature fan operation. Make sure windows are open before operating your whole house fan.
Adjusting the Timer while the Fan is On sets the Timer
for just that operation.
Adjusting the Timer while the fan is Off sets a preferred
timer setting that will be used each time the fan is
turned on.
OPERATING YOUR FAN
TIMER MODE
SPEED
MODE
H
SPEED
Timer
ON/OFF
OFF
Indoors
Press and hold the SPEED key until the desired speed is displayed then release.
If the number of speeds available does not match the number of speeds of your fan, see Troubleshooting.
CHANGE FAN SPEED
Temperature Mode operates using the Indoor temperature and the Cool Set To temperature. The ON/OFF key is used to
start temperature operation. The fan will turn on when the Set To temperature is below the Indoor temperature. Once the
Indoor temperature drops below the Set To temperature the fan will turn off. If the Indoor Temperature rises above your Set
To Temperature, the fan will again turn on to continue to cool your home to your Set To Temperature. Set To is adjustable
o o
from 60 to 95 .
SPEED
MODE
ON/OFF
HOFF
SetCool To
SPEED
Indoors
ADJUST SET TO TEMPERATURE
Press and hold the or key to adjust the Set To
temperature.
Press the ON/OFF key to display ON.
START TEMPERATURE OPERATION
In Temperature Mode, a built in Safety Timer will
automatically turn the fan off after 8 hours. To adjust
the Safety Timer hours, see Options.
TEMPERATURE MODE
Press the MODE key then press the or key to select Temperature Control (shown below). When switching
between modes, the fan turns off.
HOMEOWNER SECTION
Note: The WTT wall control is factory set for 2 speed operation out of box from factory. If you have a 3-speed fan but can
only select High (H) or Low (L), the number of fan speeds may not have been set properly. Refer to Step 5, Set The Number
of Fan Speeds, in the installer section of this manual.
HH
SPEEDSPEED
Homeowner can select
High (H) or Low (L). LL
SPEEDSPEED
2-Speed Fan
Homeowner can select High (H),
Medium (M) or Low (L). HH
SPEEDSPEED
MM
SPEEDSPEED
LL
SPEEDSPEED
3-Speed Fan
Homeowner can
select High (H) only. HH
SPEEDSPEED
1-Speed Fan
page 3 of 8 P/N 780104502 2/20 Rev B

The following options are usually set by the installer. Changing
these options could cause your fan not to operate correctly.
NUMBER OF FAN SPEEDS
The number of fan speeds selected is dependent on the
type of fan installed - 1-Speed, 2-Speed or 3-Speed fan.
Factory set to a 2-speed fan.
H
SPEED
HIGH SPEED START
For some installations, a low speed start may not be
adequate to fully open the damper doors. When this
option is set to ON and starting the fan in low speed, the
fan will start in high speed to open the damper doors
and after about 10 seconds will return to the low speed
setting. Default is Off.
OFF
Access Options- Press and hold the
MODE key to display the options.
Press the MODE key until Speed is
displayed.
Press the or key to
change the number of speeds. The
change is saved when the backlight
turns off.
Access Options- Press and hold the
MODE key to display the options.
Press the MODE key until HSS is
displayed.
Press the key to turn the
option on or the key to turn
the option off. The change is saved
when the backlight turns off.
L
OPTIONS
OUTDOOR TEMPERATURE LIMIT SAFETY TIMER HOURS
The built in safety timer runs in the background in
Temperature Mode and automatically turns the fan off after
8 hours in case you forget. Default is 8 hours. Adjustable
from 1 to 12 hours. The Safety Timer can be turned Off
although not recommended.
Only displayed if the optional TS3J Outdoor Temperature
Sensor is installed (see page 4 for more information on
the TS3J sensor). Fan operation will be delayed in both
Timer and Temperature Mode until the outdoor
temperature drops below the limit set. Default limit is
o o o
80 . Adjustable from 60 to 99 . LIMIT will be displayed
when operation is inhibited because the outdoor
temperature limit is too high.
Outdoor
Limit
STimer
Access Options- Press and hold the
MODE key to display the options.
Press the or key to
change the outdoor temperature
limit. The change is saved when
the backlight turns off.
Access Options- Press and hold the
MODE key to display the options.
If STimer is not displayed, press the
MODE key until STimer is displayed.
Press and hold the or key
to adjust the safety timer hours. The
change is saved when the backlight
turns off.
HOMEOWNER SECTION
page 4 of 8 P/N 780104502 2/20 Rev B

INSTALLER SECTION
This manual is separated into two different sections: one for the Homeowner and one for the Installer.
The Homeowner section contains information on features and operation of the wall control.
CAUTIONS
Use cautions when mounting components to surfaces that may have
concealed wiring beneath the surface.
Turn off power before installing whole house fan and controls.
Read and follow all instructions carefully, including those included with
the whole house fan. Read entire manual before installing products.
Follow all local electrical codes during installation. All wiring must
conform to local and national electrical codes.
Installation should be performed by a qualified individual with
sufficient experience and skill.
!
When servicing WHF controls, turn off all power to these items.
Connect one end of the “RED” Plug&Play cable into the
FC3JF fan control module already installed on the
junction box on the fan.
Step 2. Connect Cable to the FC3JF
Feed this
end to the
gang box
Insert into
FC3JF already
installed on
fan.
The WTT is installed in the upstairs
sleeping space. Install a plastic
retrofit single gang box about 5’
off the floor in a location that will
best sense the temperature for the
space. Do not install in a location
where the temperature will be
influenced such as in direct
sunlight, on an exterior wall, etc.
Do not install WTT in a metal
gang box.
Step 1. Install a Plastic Retrofit Gang Box
Pass the other end of the cable
through the opening in the gang box.
Attach the WTT wall
control to the plastic gang
box using the screws
provided. Attach the wall
plate to the WTT using the
screws provided in the
wall plate.
Step 4. Attach the WTT and Wall Plate
Connect the other end of the “RED” Plug&Play cable into
the”RED” connector on the back of the WTT wall control.
Connect to
“RED”
connector on
back of WTT
Step 3. Connect Cable to the WTT
Apply 120VAC power the whole house fan. The LCD on the
WTT should light up.
page 5 of 8 P/N 780104502 2/20 Rev B

Step 5. Set Options Step 6. Commissioning
The WTT wall control is factory set for 2 speed operation
from the factory. Refer to your VentCool Whole House
Fan for number of fan speeds available with your model
and adjust your WTT to match.
Check Fan Operation
INSTALLER SECTION
H
SPEED
L
Access Options- Press and hold the
MODE key to display the first option.
Press the MODE key until Speed
is displayed.
Press the or key to
change the number of speeds. The
change is saved when the
backlight turns off.
Set the Number of Fan Speeds
High Speed Start
For some installations, a low speed start may not be
adequate to fully open the damper doors. When this
option is set to ON and starting the fan in low speed, the
fan will start in high speed to open the damper doors
and after about 10 seconds will return to the low speed
setting. Default is Off.
OFF
Access Options- Press and hold the
MODE key to display the first option.
Press the MODE key until HSS is
displayed.
Press the key to turn the
option on or press the key to
turn the option off. The change is
saved when the backlight turns off.
Verify that the fan is running in High speed.
Press the SPEED key to change to Low (L). Verify the fan
is running in Low speed.
Press the SPEED key to change to Medium (M). Verify the
fan is running in Medium speed.
Press the SPEED key to return to High (H) speed.
CHECK FAN SPEEDS
The fan defaults to Timer Mode. Press the ON/OFF key
to turn the fan ON.
3-Speed Fan
Verify that the fan is running in High speed.
Press the SPEED key to change to Low (L). Verify the
fan is running in Low speed.
Press the SPEED key to return to High (H) speed.
2-Speed Fan
Press the ON/OFF key to turn the fan OFF.
page 6 of 8 P/N 780104502 2/20 Rev B

https://365-US.com/#/Home
Smart Controls Home
Welcome, PeterW
Log Out
Copyright 2019
Account Info
Whole House Fan
Status:
Speed:
Attic:
On
High
o
105 F
Control:
Set To:
Timer
3 Hours
MAINTENANCE, TROUBLESHOOTING AND ADD ONS
Ensure that the cable is completely plugged into the
“RED” connector on the WTT and the FC3JF. You should
hear the connectors click. Ensure that the fan is powered.
Ensure the wiring from the FC3JF fan control to the whole
house fan is correct.
The WTT LCD is not lit.
Ensure that the number of speeds set in Step 5
correspond to the type of fan installed - 1-speed, 2-speed
or 3-speed fan.
Fan speeds available is not correct.
Verify HS, MS and LS wire connections of fan control
module (FC3JF) located on fan assembly in attic are
correctly wired per the WHF product model installed.
Refer to specific WHF Installation manual for wiring
diagrams.
Fan speed operation does not match wall control
setting.
If On is not blinking and the WTT is in Temperature
Control, make sure the Set To temperature is a few
degrees lower than the Indoor temperature. On will blink
when the fan is running.
The display indicates On but the fan is not running.
If On is blinking but the fan is not running, check the
wiring from the FC3JF fan control to the whole house fan.
If an outdoor temperature sensor is installed and the
outdoor temperature is above the limit set, whole house
fan operation may be delayed. When delayed, “LIMIT”
blinks.
The WTT wall control enables you to easily add optional
Wireless or WiFi control without having to go into the attic
or giving up the wall control.
For wireless control, a WLM
Wireless Module is plugged into the
back of the WTT and the RTT
Wireless Remote is used to control
the fan from anywhere within your
home.
For WiFi control, a WFM WiFi
Module is plugged into the back of
the WTT and your smart phone is
used to control the fan from
anywhere.
Contact Customer Service at [email protected] or
252-522-3031 to purchase optional upgrade
components.
Model WLM-RTT
Wireless Remote
and Plug-in
Wireless Module
ON/OFF
SPEED
MODE
HON
SPEED
Indoors
Cool Set To
Model WFM
Plug-in WiFi
Module (smart phone
product provided
by homeowner)
Wi Fi
page 7 of 8 P/N 780104502 2/20 Rev B

SPARE PARTS AND ACCESSORY LIST
Field Controls
Part Number
Model
Number Description
580011702
580011701
580011704
580011705
580011706
580011707
580011550
WTT
FC3JF
WLM-RTT
WFM
WLM
RTT
PNP50
Whole House Fan Wall Control with Temperature, Timer and Speed Control. For 1, 2 or 3-Speed
PSC or ECM fans. Includes 50 FT plug&play cable and hardware kit.
Whole House Fan Control Board. For 1, 2 or 3-Speed PSC or ECM fans.
Wireless Remote Control Upgrade Kit. Includes WLM Wireless Plug-In Module and
RTT Wireless Remote Control.
Replacement WLM wireless plug-in module.
Replacement RTT wireless remote control.
Cable 50 FT PNP50 VentCool
WiFi Control Upgrade Kit. Includes WLM WiFi Plug-In Module.
This manual may be downloaded and printed from the Field Controls website (www.fieldcontrols.com)
WARRANTY
For warranty information about this or any Field Controls product, visit:
www.fieldcontrols.com
Field Controls Technical Support
1.800.742.8368
[e-mail]
Phone: [phone] Fax: [phone]
www.fieldcontrols.com
Field Controls, LLC
c
Field Controls Customer Service
1.252.522.3031
[e-mail]
9154 Stellar Ct
Corona, CA 92883
2630 Airport Road
Kinston, NC 28504
P/N 780104502 2/20 Rev B