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    T855S

    Universal
    Residential/Light Commercial  

    Up to 2 Heat, 2 Cool Conventional 
    Up to 3 Heat, 2 Cool Heat Pump
    Battery or Hardwire

    7 Day, 5/1/1 or Non-Programmable
    Discountinued

    Simple. Affordable. Professional.

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    The display range of temperature           
    41˚F to 95˚F (5˚C to 35˚C)
    The control temperature range
    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)
    Battery power from 2 AA Alkaline Energizer batteries
    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
    • 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

    • Two and four occupancy/unoccupancy time periods available

    • Keypad lockout

    • Adjustable 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

    • Advanced pre-occupancy purge and IAQ fan control

    • Set dual-fuel balance point with outdoor temperature sensor (R250S)

    • Remote sensor compatable (R251S) for moving sensing location or temperature averaging

    • Partial and full keypad lockout


    T801 Installation Manual

    T855S Operation Manual

    T855S Submital Sheet




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