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Aprilaire Model 8800 Communicating Touchscreen Thermostat

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Aprilaire Model 8800 Communicating Touchscreen Thermostat

The Model 8800 is a "smart" thermostat designed for today's smart homes. The "smarts" the thermostat posses is an open communications protocol that allows for a home automation system to control the thermostats remotely. This adds convenience for the homeowner by controlling multiple systems, HVAC included, from their touch screens, smart phones and tablets.



  • Optional temperature and relative humidity support modules for elaborate applications
  • Dual fuel operation (lockout of heat pump w/ call for back-up fossil fuel heat)
  • Commercial and residential applications (2 or 4 events per day)
  • Remote indoor sensor option w/ 8051/8053 sensors
  • Temperature offset ± 8°
  • Integrated dual fuel kit w/ high and low balance point control (requires 8052 sensor)
  • Geothermal water to water friendly - B & O de-energize in the off mode to prevent unnecessary heating and cooling of the buffer tank
  • 2H/2C Conventional and 4H/2C Heat Pump
  • Universal Thermostat - One stat fits all applications
  • Configurable manual heat/cool or auto changeover modes
  • Configurable heating and cooling, heating only or cooling only operation
  • Direct connect an outdoor and indoor sensor
  • On board Relative Humidity sensor
  • Configurable to control humidifier and dehumidifier
  • Large, easy-to-wire terminal block
  • Adjustable differential for 1st, 2nd, 3rd and 4th stages


  • Maintenance reminders - Humidifier, air filter, dehumidifier, HVAC
  • Global reports outdoor temperature to all thermostats on the network
  • Circulate fan mode
  • Programmable fan
  • Progressive recovery
  • Built-in equipment protection
  • Equipment stage indication
  • High and low setpoint temperature limits
  • Five year warranty
  • "Copy" function for quick and easy programming
    Multiple hold options maximizes comfort and energy savings
    - Vacation hold
    - Customizable timed hold
    - Permanent hold
  • Real time clock automatically adjusts for daylight savings time
  • Permanent memory - programming and date isn't lost during a power outage
  • Battery back up maintains clock


  • Large 10.3 sq. in. touch screen
  • Large font size
  • Fully back lit w/ constant low intensity light option
  • Exclusive message center (provides feedback and real language instructions)
  • Displays outdoor temp (w/ optional 8052 sensor)
  • Real language programming/set up - no manual needed
  • Full or limited screen lockout

4 15/16" High x 6" Wide x 1 5/16" Deep
Control range: 45º to 99ºF (7º to 32ºC)
Display range: 32º to 99ºF (0º to 40ºC)
Accuracy: ± 1ºF (± .5ºC)
Storage temperature: -30º to 140ºF (-34.4º to 60ºC)
Operating humidity: 5% to 90% relative humidity
Operating ambient temperature: 32º to 120ºF (0º to 48.9ºC)
24 VAC (18-30 VAC)
1 amp maximum load per terminal
2.5 amp total maximum load (all terminals)
AC Power: 18-30 Volt AC
DC Power: 3.0 Volts DC (2 "AA" Alkaline batteries included)
Standard systems gas, oil, electric
Single stage/heat pump/multi-stage
Terminal Designations: Rc, R, W, Y, G, C, S1, S2, O, B, L, W2, Y2, T1, T2, C, B, O, Y, Y2, G, RC, R, W2, WL, S2, S1, T1, T2, A-, B-, A+, B+, RSA, RSB