Supply Voltage:20-30 VAC, 50/60 Hz
Battery:Optional, 3-AAA
Accuracy:±1°F (0.5°C), system dependent
Supply Current:H/C - 1.0A, fan - 0.6A
Memory:10 years, then 3-AAA batteries required
Sensor Type:Built-in 10K thermistor
Remote Sensor:Room or OSA (accessory required)
Contact Type:SPST relays
Control:Proportional plus Integral (PI)
Dead-band:Adjustable, 2°/9°F, (1.5°/5°C)
Setpoint/Setback:Adjustable with programmable limits
:Heating 40 to 90°F (10 to 32°C)
:Cooling 50 to 99°F (10 to 37°C)
:RH 40 to 80%, (TH8321)
Keypad Lockout:Unlocked, locked completely, or locked except setpoint
Display:3.5" x 2.5" backlit touch screen, temperature, humidity (TH8321), system, fan, time, day, setpoint, service reminders (TH), OSA temp if wired
Display Offset:±3°F (1.5°C), in 1°F (0.5°C) increments
Touch Screen Controls:
:Setpoints Up/Down
:System Heat/Off/Cool/Auto
:Fan Control On/Auto/Circ (TH), On/Auto (TB)
:Schedule 7 day, 2 or 4 periods
:Hold (TH) Permanent or time out
:Holiday (TB) Time out by days
:Clock 12-hour or 24-hour, ±1 min./month
:Screen °F/°C, backlight
:Override Occupied time out
:Menu Service set up, over 40 parameters
Wi-Fi Access (WF):Requires a Total Connect Account
Color:Premier white
Wiring:Terminals for 18 AWG wire
Operating Temperature:0° to 120°F (-18° to 49°C)
Operating Humidity:0 to 90% RH (non-condensing)
Mounting:Horizontal with base included
Enclosure Rating:NEMA 1, White plastic, indoors only
Dimensions:4.56"H x 6.0"W x 1.37"D
:(11.6 x 15.24 x 3.5 cm)
Weight:1.1 lb (0.5 Kg)
Approvals:California Title 24 (TB), ADA compliant
Warranty:5 years