ask the electrician
Electrician Training Electrical Certification wiring recessed light fixtures Electrical Wiring Electrical Troubleshooting and Electrical Repairs wire outdoor light fixture Home Electrical Wiring Diagrams
wiring home generator and transfer switch wiring a 220 volt range cord outlet Wiring for GFCI Outlets Wiring Outlets and a Switched Outlet Wiring and Installing Ceiling Fans and Remote Controls wire dimmer switch wiring diagrams for switches wiring a dryer cord and 220 outlet circuit breaker panel
Electrical Wire and Cable


Wire a Attic Exhaust Fan to a Thermostat Control

Wiring a Attic Exhaust Fan Electrical Question: How can I  control an attic fan (120 volt) with 2 wires (black and white) with a regular 24 volt thermostat. I am having an issue with how to wire a White Rodgers Emerson model # 90 113 SPDT Relay which is mounted to a 4×4 box. How […]

Electrical Video #1

Electrical Wiring Tips

Helping You to Wire It Right!

See more Home Electrical Wiring Videos

Check out my YouTube Channel, and Subscribe!

See the Electrical Wiring Video #2 Below:

Wiring a Attic Exhaust Fan

Electrical Question: How can I  control an attic fan (120 volt) with 2 wires (black and white) with a regular 24 volt thermostat. I am having an issue with how to wire a White Rodgers Emerson model # 90 113 SPDT Relay which is mounted to a 4×4 box.

How to Wire Attic Exhaust Fan

Lou asks:
I am trying to control an attic fan (120 volt) with 2 wires (black and white) with a regular 24 volt thermostat.
I am hving issue with how to wire White Rodgers Emerson model # 90 113 SPDT relay which is mounted to a 4×4 box.
I have 18 4 thermostat wire along with 12 2 wire for power and the 2 attic fan wires (black and white) connected to 4×4 box.
I have 5 wires coming from SPDT, (2 Black with 1 of black marked common, white, red, and brown).
I was told by rep from Emerson that white wire from SPDT was the hot wire.
I just need to know where to connect which wires to SPDT.
Thank you for your help.

This electrical wiring question came from Lou in Staten Island, Texas.

Dave’s Reply:

Thanks for your electrical wiring question Lou.

How to Wire a Attic Exhaust Fan

Application: How to Wire a Attic Exhaust Fan.
Skill Level: Intermediate to Advanced – Best performed by a Licensed Electrical Contractor, or Licensed HVAC Contractor.
Electrical Tools Required: Basic Electricians Pouch Hand Tools, Voltage Tester, and appropriate Safety Gear.
Estimated Time: Depends on the personal level experience, ability to work with tools, install electrical circuit wiring, and the available access to the project area.
Electrical Safety: Identify the electrical power source to the Attic Exhaust Fan, turn it OFF and Tag with a Note before working with the electrical wiring.
Electrical Wiring Parts and Materials: Electrical parts and materials for the Attic Exhaust Fan should be approved for the specific project and compliant with local and national electrical codes.
Electrical Codes and Inspections: Installing or changing home electrical wiring should be done according to local and national electrical codes as adopted in Staten Island, Texas. A permit and inspections may also be required.

How to Wire a Attic Exhaust Fan in a Attic

This electrical wiring project is about How to Wire a Attic Exhaust Fan to a thermostat and control relay.
attic fan control

Attic Exhaust Fan Thermostat Control Wiring

attic fan thermostat

Attic Exhaust Fan Thermostat and Control Relay

basic control circuit

A Basic Control Circuit

The Following Resources may Assist You with this Question:
Installing Attic Electrical Wiring
Is it standard for electrical wiring to be strung in a disorderly fashion in the attic? Methods of Proper Attic Electrical Wiring.
Install an Attic Exhaust Fan to Help Cool Your Home
I want to install attic fans to help cool my house and reduce my electric bill, what do you recommend? Here are some considerations when Selecting and Installing an Exhaust Fan to Help Cool Your Attic and Your Home.
Attic Wiring, Junction Boxes and Electrical Safety
How to Store Unused Electrical Wires: Is it safe to leave live wires capped in switch box covered by flat plate?
Installing Attic Electrical Wiring
Is it standard for electrical wiring to be strung in a disorderly fashion in the attic? Methods of Proper Attic Electrical Wiring.
Installing a Whole House Fan
I am installing a whole house fan that runs on 120v 250 watts max. The fan comes with 2 grounded plugs, 1 to fan, one to damper system to simply plug into an existing outlet in the attic…

More about How to Wire a Attic Exhaust Fan

All About Electrical Relays
electrical-relays

Understanding Electrical Relays

The use of relays that are sometimes needed to control special device loads such as Air Conditioners and other high demand equipment from starting at the same time.

Guide to Home Electrical Wire
electrical-wire

Electrical Wire for the Home

Complete listing of electrical wire types and parts used for home projects with electrical code information serves as selection guidelines.

Electrical Boxes for Electric Repairs and Home Wiring Projects
electrical-wiring

Electrical Junction Boxes for Home Wiring

Understanding electrical junction boxes and what they are used for. Home electrical wiring is the process of installing electrical wire to a location that will serve electrical devices or an appliance. One very important component is the box where the wire will be installed. The type and size of the home wiring electrical boxes will depend upon the circuit size, application and its location.

home-improvement-electrical-projects
Wiring a Honeywell Thermostat

Wiring A Thermostat

How to Wire a Bath Exhaust Fan
Bath Exhaust Fan

Bathroom Exhaust Fan

Answers to all of your questions about installing a bath exhaust fan and your bathroom exhaust fan replacement project.

See more about Home Wiring for Texas



The following may also be helpful for you:

Electrical Wiring Video #2



Home Electrical Wiring Videos about this Topic and More

Check out my YouTube Channel, and Subscribe!



Learn more with my Home Electrical Video Course:

Basic Home Electrical Wiring by Example

Dave's Guide to Home Electrical Wiring:

» You Can Avoid Costly Mistakes! «

Here's How to Do It:
Wire It Right with the help of my Illustrated Wiring Book

Great for any Home Wiring Project.
  electrical wiring  

Complete Guide to Home Electrical Wiring

Perfect for Homeowners, Students,
Handyman, Handy Women, and Electricians
Includes:
Wiring GFCI Outlets
Wiring Home Electric Circuits
120 Volt and 240 Volt Outlet Circuits
Wiring Light Switches
Wiring 3-Wire and 4-Wire Electric Range
Wiring 3-Wire and 4-Wire Dryer Cord and Dryer Outlet
How to Troubleshoot and Repair Electrical Wiring
Wiring Methods for Upgrading Electrical Wiring
NEC Codes for Home Electrical Wiring
....and much more.



Be Careful and Be Safe - Never Work on Energized Circuits!
Consult your Local Building Department about Permits and Inspections for all Electric Wiring Projects.

More articles about attic exhaust fan, Attic Questions, Electrical Repair and Home Electrical Wiring:
« Previous Next »
How to Wire More than One Light Switch Wire a Inline Exhaust Fan for Two Bathrooms