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Pro1 IAQ Universal 3 Heat / 2 Cool 7-Day Programmable Thermostat | T855

Pro1 IAQ Universal 3 Heat / 2 Cool 7-Day Programmable Thermostat | T855

Name: Pro1 IAQ Universal 3 Heat / 2 Cool 7-Day Programmable Thermostat | T855
Brand: Pro1 IAQ
SKU: T855
Price: 232.78 USD
Availability: InStock

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Pro1 IAQ Universal 3 Heat / 2 Cool 7-Day Programmable Thermostat front view, model T855

UPC:
Condition:: New
Width:: 6.00 (in)
Height:: 6.00 (in)
Depth:: 2.50 (in)

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Overview

Pro1 IAQ Universal 3 Heat / 2 Cool 7-Day Programmable Thermostat | T855

Product details

Description

Overview

The Pro1 IAQ T855 is a universal programmable thermostat built around a large 8 square inch backlit display that is easy to read from across the room. It handles up to 3 stages of heat and 2 stages of cool, so one model covers gas, electric, oil and heat pump systems with auxiliary heat.

Scheduling can be set as 7-day or 5-1-1, and the thermostat runs on 24V power or on batteries when a common wire is not available at the wall. Installers like it because the same unit fits most of the systems they see in a week, which keeps truck stock simple. Homeowners get clear setpoints, a real schedule and a display that does not need reading glasses.

Frequently Asked Questions

Will the T855 work with my heat pump?

Yes. It supports heat pump systems with auxiliary or emergency heat, as well as conventional gas, electric and oil systems, up to 3 heat and 2 cool stages.

Does it need a C wire?

No. It can be powered by 24V with a common wire or run on batteries.

Comfort for the people who live there

The right equipment keeps the rooms you live in steady and quiet, whether it's dinner in the kitchen or a weekend project in the garage.

Specifications

Extra Information

Find your comfort-ready size with confidence

Get a fast, learning-friendly estimate for tons and BTUs, then review it with a Pro to dial in the perfect fit for your home.

Quick sizing snapshot

Enter your home size and a few basics to see a quick HVAC365 sizing snapshot you can review with a Professional.

Home size (sq ft)

Enter at least 100 sq ft.

Use conditioned square footage only; skip garages and unfinished basements.

Climate

We’ll auto-detect for U.S. visitors.

Home type

Select your home type.

Shared walls and insulation levels change the load—pick what matches your structure.

System type

Choose a system type.

Match the system to your ductwork, fuel, or preferred heat source for best comfort.

This is a sizing estimate for general guidance only. Always confirm final size, duct design, and fuel type with a Professional before purchasing equipment or pulling permits.

Brand:

Pro1 IAQ

Width:

6.00 (in)

Height:

6.00 (in)

Depth:

2.50 (in)

Weight:

1.00 LBS

Safety Information:

⚠ WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Prop 65 Warning:

Yes

Product Type:

Thermostat

Programmable:

Programmable

Stages (Heat/Cool):

3 Heat / 2 Cool

Heat Pump Compatible:

Yes

Power Source:

24V or Battery

C-Wire Required:

Display:

Digital

Wi-Fi:

Scheduling:

7-Day or 5-1-1

Please Note: To validate the manufacturer's warranty, equipment must be installed by a qualified licensed professional in accordance with local codes and the manufacturer's installation requirements.