The Aciq STN855W is a Wi-Fi programmable thermostat that supports 7-day, 5/1/1, or non-programmable scheduling and runs on 24V power. It controls conventional and heat pump systems (2H/2C or 3H/2C), offers a temperature range of 32°F to 99°F with a control range of 44°F to 90°F and ±1°C accuracy, and provides touchscreen operation with selectable backlight and Alexa compatibility.
Programmability: 7-day, 5/1/1 or non-programmable modes; easy menu-driven programming and keypad lockout.
System compatibility: Works with 2 Heat/2 Cool conventional or 3 Heat/2 Cool heat pump systems; supports single- and two-stage systems with auxiliary/emergency heat and HA/HB non-polarity communication.
Controls and indicators: Touchscreen display, selectable white/blue/green backlight, heating/cooling setpoint limits, toggleable filter change indicator, and Alexa support.
Product Highlights
Wi-Fi touchscreen thermostat, 24V power, 32°Fâ99°F operating range, ±1°C accuracy, compact 120 x 98 x 28 mm housing.
Product Information
Standard Information
Brand: ACIQ
Manufacturer Part Number: STN855W
Technical Specifications
Brand
ACiQ
Model
STN855W
Product Type
Wi-Fi programmable thermostat
Input Voltage
24V
System Compatibility
2 Heat / 2 Cool conventional or 3 Heat / 2 Cool heat pump; supports single- and two-stage heating/cooling and heat pump systems with auxiliary/emergency heat; compatible with HA/HB non-polarity communication systems
Programmability
7-Day, 5/1/1 programmable or non-programmable
Temperature Range
32°F to 99°F (1°C to 40°C)
Control Temperature Range
44°F to 90°F (7°C to 32°C)
Temperature Accuracy
±1°C (at 20°C)
Display
Touchscreen
Backlight Options
White, blue, or green
Connectivity
Wi-Fi; compatible with Alexa
Features
Easy menu-driven programming; keypad lockout; heating and cooling setpoint limits; filter change indicator (toggleable); configurable for electric or gas setups