Supply Voltage: 20-30 VAC @ 2 VA, 50/60 Hz

Display: Two-line backlit LCD

Controls: Five menu-driven push buttons - up, down, menu, no, yes/scroll

Thermostat Type: Seven-day programmable models, non-programmable models

Optimal Start: Progressive recovery (enable/disable)

Heat Pump High/Low: OSA lockout (emergency heating/compressor heating)

Stages: (Dependent upon model)

1H/1C, 2H/2C, (3H/2C heat pump) 2H/2C + proportional mixed-air economizer

Memory (schedule): Permanent EEPROM

Clock: (12 or 24 hour); Six-hour power fail retention

System Switching: Off/Auto/Cool/Heat

Fan Switching: On-continuous; Auto-on demand; Smart-on/occupied, off/unoccupied

Control Accuracy: ±0.9°F, (±0.5°C) @ 70°F (21°C)

Setpoint Range

Heating 40° to 90°F (4.5° to 32°C)

Cooling 54° to 100°F (12° to 37.5°C)

Setpoint High/Low Limits: Individually adjustable, H/C

Remote Sensor

Room Sensor: Room Sensor input auto-detected 10K Type 2 thermistors

Outside Air: Outside air input auto-detected 10K Type 2 thermistors

Mixed Air: Mixed air input auto-detected (economizer model only) 10K Type 2 thermistors

Auxiliary Inputs: Two dry contact digital inputs; Four Types Service/status reminders; Filter alarm; Central night setback clock; Remote occupied override timer

Control Output: 1A relay, 30 VAC, 3A surge maximum

Auxiliary Contact Output: 1A relay 30 VAC, N.O./N.C. follows occupied schedule

Mixed Air Output: Proportional 0-10V DC, 2k O minimum (economizer model)

Control Type: Proportional plus integral

Deadband: Adjustable 2° to 4°F (1° to 2°C)

OSA Lockout Limits

Heating: 15° to 120°F (26° to 49°C), 5°F increments

Cooling: -40° to 95°F (-40° to 35°C), 5°F increments

Low Limit Protection: Enable/disable, heating @ 47°F (5.5°C)

Power Up Delay: 10 to 120 seconds

Keypad Lockout: Three levels (full, none, partial)

Cycles Per Hour: Adjustable, heating 3-8 CPH, cooling 3-4 CPH

Display Offset: Adjustable ±5°F (2.5°C), 1°F increments

LED Indicators: Three green "on" (fan, cooling, heating)

Wiring: 18 AWG to 22 AWG

Operating Temperature: 32° to 122°F (0° to 50°C)

Operating Humidity: 0% to 95% RH (non-condensing)

Color: White

Mounting: Standard vertical 2" x 4" box

Enclosure Rating: NEMA 1, ULFR1 flame-retardant plastic

Dimensions: 4.94"H x 3.38"W x 1.13"D (12.5 x 8.6 x 2.9 cm)

Weight: 0.75 lb (0.34 Kg)

Approvals: UL, File #E234137, CE, RoHs, BACnet, Lonmark

Warranty: 1 year