Description
Product Summary
The Honeywell Residential TH109PROPLUS is a thermostat from Honeywell Residential, described by the manufacturer as: 240VAC two or four wire digital non programmable electronic thermostat for electric heating 40-86F. It is rated for 240V. It replaces TH108PLUS and TH108.
A thermostat reads the room temperature and tells the heating and cooling equipment when to run. Matching the thermostat to the system's stages, heat pump or conventional setup and power source is the key to a correct replacement. Replace a thermostat that reads the wrong temperature, will not call for heat or cooling, has a blank display or does not support the equipment's stages.
Before you order, match TH109PROPLUS to the part number on the part you are replacing or in your equipment's repair parts list, and confirm the voltage, size and connections match your equipment. If you are not sure which part your equipment needs, call us at 1.888.509.3391 with the model and serial number and we will confirm it for you.
Key Features
- Genuine Honeywell Residential part: Manufacturer part number TH109PROPLUS, factory new.
- Voltage: 240V.
- Cross-reference: Replaces TH108PLUS and TH108.
- Part type: Thermostat.
Frequently Asked Questions
Is this a genuine Honeywell Residential part?
Yes. This is the Honeywell Residential TH109PROPLUS, a factory-new thermostat from Honeywell Residential.
How do I make sure it fits my equipment?
Compare TH109PROPLUS with the part number printed on the part you are replacing or listed in your equipment's repair parts list, and confirm the voltage and connections match. If you are not sure, call us at 1.888.509.3391 with your model and serial number and we will confirm it.
What part numbers does the TH109PROPLUS replace?
The Honeywell Residential TH109PROPLUS replaces TH108PLUS and TH108.
Will this thermostat work with my system?
Check the number of heating and cooling stages, whether the system is a heat pump or conventional furnace and air conditioner, and whether a common (C) wire is available if the thermostat needs one.
Should a professional install this part?
Yes. Gas, electrical, hydronic and combustion components should be installed by a qualified technician who can test the system afterward and follow the codes that apply where you live.
