Whole house fans (WHF) provide free cooling by bringing cool, outside air into the home and exhausting the stale, warm air out of the home. Traditionally, WHFs are controlled by a timer that is set by the homeowner. If during the night, the temperature inside becomes too cool, the homeowner must get up and turn the fan off. The WHF thermostat offers a better approach by controlling the whole house fan by temperature.

An optional outdoor temperature sensor and optional upstairs temperature sensor can be installed for even more comfort and control. The outdoor temperature sensor can be used to inhibit whole house fan operation when the outside temperature is too warm. The upstairs temperature sensor can be used to control heating, cooling and WHF operation at night using the sleeping area temperature.

How It Works

Contractor Resources

Click on the Resources link for contractor resources including videos, manuals, brochures and other materials for all Comfort365 products.

Whole House Fan Control for

Where To Buy

Click on the Distributor link to find a distributor in your area. If there is not a distributor in your area, please contact us.

Features

Easily Upgrade to WiFi

The WHF thermostat can easily be upgraded to WiFi to provide homeowners with remote access to their home's

Nighttime Energy Savings and Comfort

The WHF thermostat includes Energy Star nighttime setback temperatures. For additional savings, homeowners can control the whole house fan using temperature control rather than timer control which will eliminate running the fan once the desired temperature is reached. For additional

Meets Title 24

Meets Title24 and HERS credit for whole house fan with added energy savings.

heating and cooling system and the whole house fan. The WiFi version simply plugs into the same subbase - no additional wiring needed. Eliminates the need for the whole house fan WiFi module and app.

One Device for Integrated Control

The touch screen thermostat with integrated control features a high definition LCD display and controls heating, cooling and the whole house fan. Integrated control eliminates the need for a timer to be installed and prevents compressor cooling when whole house fan cooling is selected.

(949) 916-0945

Contractor

Builder

Homeowner

26072 Merit Circle #110 / Laguna Hills, CA 92653 / 949-916-0945 / Fax 949-458-8502

eControls

Copyright 2017

Whole House Fan Control
Wired Solution for RNC

Programmable Thermostat

Optional Temperature Sensors

T511FC

Use with gas/electric equipment with 1H/1C.

TS510W

TS520W

Temperature sensor for single sensor installations.

Temperature sensor for two sensor installations.

TS3

Outdoor temperature sensor. Required when using dual fuel heat pump equipment.

Whole House Fan Control Boards

RLY24

FC2T

For single speed WHF. Installed in electrical box on the fan.

For 2 speed or variable speed WHFs using ECM and PWM speed control. Installed in electrical box on the fan.

All wiring done at rough-in.

Thermostat cost is less than using a builder model thermostat and wall timer.

This solution does not offer an easy upgrade to whole house comfort controls.

Eliminates installing wiring hub.

The homeowner sets the system mode to eCool to activate the whole house fan and then sets the desired set point temperature. Once the inside temperature reaches the desired temperature, the thermostat will turn the WHF off, saving energy. If the temperature rises, the thermostat turns the WHF on again. In addition, the thermostat prevents compressor cooling when the whole house fan is on.

comfort, an optional temperature sensor can be installed in the sleeping area to control heating, cooling and whole house fan operation rather than using the temperature at the thermostat.

T521FCWF

Use with gas/electric equipment with 1H/1C. WiFi Enabled.

TS510W (1)
Wired Temp. Sensor,
Install in
Bedroom Hallway

TS520W (2)
Wired Temp. Sensors,
Install (1) in Bedroom Hallway and (1) in Master Bedroom

Optional Temperature Sensors

Optional
TS3 Outdoor Temp Sensor

T511FC, T511FCWF,
T521FC or T521FCWF
Thermostat

HVAC
Equipment

RLY24 Relay Board
Installed in
WHF Box

FC2T Relay Board
Installed in
WHF Box

TS510W (1)
Wired Temp. Sensor,
Install in
Bedroom Hallway

TS520W (2)
Wired Temp. Sensors,
Install (1) in Bedroom Hallway and (1) in Master Bedroom

Optional Temperature Sensors

Optional
TS3 Outdoor Temp Sensor
Required when using DFHP

TC42E or TC42EWF
Thermostat

HVAC
Equipment

FC2J Relay Board,
Plug&Play.
Installed in
WHF Box

FC2J Relay Board,
Plug&Play.
Installed in
WHF Box

WH33F Wiring Hub

Programmable Thermostat

Optional Temperature Sensors

TC42E

TC42EWF

Communicating Thermostat.

Communicating Thermostat.
WiFi Enabled.

TS510W

TS520W

Temperature sensor for single sensor installations.

Temperature sensor for two sensor installations.

TS3

Outdoor temperature sensor. Required when using dual fuel heat pump equipment.

Whole House Fan Control Board

FC2J

Plug&Play. For 2 speed or variable speed WHFs using ECM and PWM speed control. Installed in electrical box on the fan.

Wiring Hub

WH33F

Use with gas/electric, heat pump and dual fuel heat pump with 3H/2C.

FC2J Relay Board,
Plug&Play.
Installed in
WHF Box

Whole House Fan Control
Wiring Hub Solution for RNC

WHF relay board and optional sensors are wired to the thermostat.

Thermostat cost is about the same as using a builder model thermostat and wall timer.

Easy upgrade to whole house comfort control - Integrated control of airflow, whole house fans, fresh air, ERV/HRV units and humidity by simply changing out the wiring hub.

Plug&Play connections reduce wiring errors.

Controls single or two-speed whole house fans with PSC or ECM motors.

One or two sensors can be used in the sleeping area.

Temperature control or built-in timer.

Temperature control improves energy savings by only operating the whole house fan when needed.

Easy Upgrade to WiFi.

Optional temperature sensor in sleeping area controls heating, cooling and whole house fan operation at night.

Controls variable speed whole house fans with ECM motors using PWM with speed ramping for quiet operation.

T521FC
Thermostat

Optional Wired Temperature Sensor

Optional Wired Outdoor
Temperature Sensor

Relay or Relay Board Installed in Electrical Box on WHF

Residential New Construction

T521FC

Use with gas/electric or heat pump equipment with 2H/1C or 1H/2C.

T521FCWF

Use with gas/electric or heat pump equipment with 2H/1C or 1H/2C. WiFi Enabled.

Home

Products

Resources

About Us

Contact Us