T855i WIFI Thermostat


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    • 7 Day or 5/1/1 progammable

    • Auto Changeover

    • Easy menu driven programming

    • Intuitive wake, leave, return, sleep programming icons

    • 8 sq. inch display 

    • Blue backlight

    • Glow in the dark light button

    • Programmable fan

    • Electric or Gas configurable

    • Room temperature calibration adjustment

    • Separate heating and cooling swing (cycle rate) adjustments

    • Keypad lockout

    • Heating and cooling setpoint limits

    • 5 minute compressor delay protection (selectable on or off)

    • Filter change indicator(selectable on or off)

    • Simple private label badge system

    • Easy wire color coded terminal blocks

    • Universal sub-base

    • Mounts on wall or junction box

    • 24v power





    800 Family Brochure Pro1 Linecard


    T855i Thermostat
    The display range of temperature 41°F to 95°F (5°C to 35°C)
    The control range of temperature 44°F to 90°F (7°C to 32°C)

    Load rating

    1 amp per terminal, 1.5 amp maximum all terminals combined
    Display accuracy ± 1 °F 
    Swing (cycle rate or differential) Heating is adjustable from 0.2°F to 2.0°F 
    Cooling is adjustable from 0.2
    °F to 2.0°F 
    Power source 18 to 30 VAC, NEC Class II, 50/60 Hz for hardwire (common wire) 
    Operating ambient

    32° to +105° (O° to + 41°C) 

    Operating humidity

    90% non-condensing maximum

    Dimensions of thermostat

    4.7"W x 4.4"H x 1.1"D



    Wi-Fi Module

    Supporting 802.11 B/G/N Standards


    2.4 GHz ISM radio band

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