The universal auto changeover thermostat shall be a Braeburn® model number 5020, 3.86 in H x 5.11 in W x 1.42 in D, powered with either 24 Volt AC or with two "AA" Alkaline batteries (3.0 Volt DC). In the event of a power failure, the unit shall retain all user, installer and program settings. The thermostat shall be compatible with low voltage single stage gas, oil, or electric heating or cooling systems, and single stage heat pump systems. Also compatible with 250 mv to 750 mv millivolt heating only systems and 2 or 3 wire hydronic zone systems. The thermostat shall have a bright blue backlight display, SpeedBar®, separate sub-base and multi-level keypad lockout. Temperature control range shall be between 45 and 90 deg F, accuracy of +/- 1 deg F and operating humidity range between 5% and 95% relative humidity. The thermostat shall include separate installer and user setup modes, permanent non-volatile memory to retain user settings, filter, UV and humidifier pad check monitor, adaptive recovery mode (ARM™), programmable fan mode, residual cooling fan delay and indoor or outdoor remote sensor capability. A front reset button will return user settings to default values when pressed. Meets Energy Aware® Guidelines.

Braeburn® Thermostat, Series: Premier™, Programmable Thermostat, 45 to 90 deg F Control, 0.5 to 2 deg F Differential, RC, RH, O/B/V3, Y1, W1, G, C, S1, S2 Terminal Designations, 3 Stage, 2 Heat Pump, 1 Conventional Stages Heat, 1 Heat Pump, 1 Conventional Stages Cool, 7 or 5-2 Days Programs per Week, 5 sq-in Bright Blue Back-Lit Display, 24 VDC, Battery/Hardwired Power Source, 3.86 x 5.11 x 1.42 in Dimensions, Import

• Auto or manual changeover
• Speedbar multi function button
• Adjustable temperature limits
• Indoor or outdoor remote sensing
• SpeedSet® programming mode
• Separate user and installer reset buttons
• Programmable fan mode with ON or auto modes
• Adaptive recovery mode
• Temporary override limits
• Residential or commercial mode
• Compatible with 2 or 3 wire hydronic zone systems
• 2 heat/1 cool heat pump
• 1 heat/1 cool conventional
• Multi-level keypad lockout
• 18 to 30 V AC supply
• 3 V DC supply
• 5 to 95 % relative humidity
• +/- 1 deg F accuracy
• 14 to 140 deg F storage temperature
• Compatible with single stage gas, oil or electric systems, single stage heat pump systems, 250 to 750 mV heating systems

• https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/Braeburn_5020_Specification_Sheet.pdf https://www.hirsch.com//ASSETS/DOCUMENTS/ITEMS/EN/https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/Braeburn_5020_Specification_Sheet.pdf