The Model 8800 communicating thermostat adds a touch of class to any décor, provides comfort your customers expect and is easy to install.

Thermostat Features

• Large 10.3 sq. in. backlit display
• One thermostat for all applications
• Programmable or non-programmable
• Direct connection of outdoor and indoor sensors
• Commercial or residential applications
• Backward compatible
• Equipment maintenance reminders

Installation

• 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

Operation

• 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
• "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

Screen

• 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

Thermal Specifications

• 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)
• Shipping temperature range: -30º to 140ºF (-34.4º to 60ºC)

Dimensions

• 4-15/16" High x 6" Wide x 1-5/16" Deep

Electrical Specifications

• 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

Accessories - Sold Separately

• 8052 Outdoor Temperature Sensor
• 8051 Flush Mount Indoor Temperature Sensor
• 8053 Surface Mount Indoor Temperature Sensor
• 8081 Temperature Support Module
• 8082 Relative Humidity Support Module