Pro1 IAQ Programmable 3H/2C Thermostat
Pro1 IAQ Programmable 3H/2C Thermostat
Item # T855

A great multistage thermostat at a value price - choose from 7 day or 5+1+1 day program.  This value-priced programmable thermostat is packed with features and designed to keep your customers comfortable.

Features and Benefits
  • Up to 2H/2C conventional and heat pump systems
  • 7 day or 5/1/1 day programmable
  • Auto changeover
  • Easy menu driven programming
  • Intuitive wake, leave, return and sleep programming icons
  • Large 8 in2 display with blue backlight
  • Glow in the dark light button
  • Programmable fan
  • Room temperature calibration adjustment
  • Keypad lockout
  • Heating and cooling setpoint limits
  • Filter change indicator
  • Easy wire color coded terminal blocks
  • Universal sub-base
  • Hardwired or battery powered
  • 5-year warranty
Product Specifications
Up to 2H/2C conventional and heat pump systems
4.70” x 4.40” x 1.10” (WHD)
Display Size
8 in2
Input Voltage
24VAC or 2 AA alkaline batteries
Operating Temperature
32° to 105° F
Operating Humidity
0% to 90% non-condensing
Storage Temperature
-4° to 140° F
Temperature Sensors
Not applicable
Short Cycle Protection
5 minutes or OFF
Control Range
44° to 90° F


5418 Elmwood Ave | Indianapolis IN 46203 | 888-652-9663