Auto Disable Air Handler Heating System

Auto disable air handler heating system when it isn't needed.
Here are some of the things I keep in my tool bag.
Backpack: http://amzn.to/2tDnYsC
My screwdriver: http://amzn.to/2uPyIDV
Small fuse puller: http://amzn.to/2uPIdDk
Combination fuse puller: http://amzn.to/2vB0dPf
Adjustable wrench: http://amzn.to/2us3akS
USB to Serial converter: http://amzn.to/2vAKHTD
Network cable: http://amzn.to/2vBpJE0
Network switch: http://amzn.to/2eHsIa7
Hex Key set: http://amzn.to/2eHvA6C
Fluke meter: http://amzn.to/2tDaZHj
Fluke temperature meter: http://amzn.to/2tDxnQO
Dell 32 bit laptop: http://amzn.to/2us2Z9n
Serial cable: http://amzn.to/2eHvyf8