Smart WiFi Thermostat for 24VAC HVAC Systems | PCT5231

Main Feature:

The OWON PCT5231 is a 24VAC smart WiFi thermostat designed for residential and light commercial HVAC systems. It supports conventional, multi-stage, heat pump and dual-fuel applications, with up to 10 remote room sensors for multi-room comfort and occupancy-aware HVAC control. Features include 7-day scheduling, HVAC energy reports, Tuya Smart connectivity and Open API support for OEM and smart HVAC integration. It is suitable for compatible 24VAC HVAC projects in North America and other markets.


  • Model: PCT5231
  • Dimensions: 97 (L) × 97 (W) × 21 (H) mm
  • Weight: 200g
  • Certification: FCC,RoHS




  • Product Detail

    Main Spec

    VIDEO

    Product Tags

    ▶Main Features:

    • North American 24VAC HVAC Compatibility — Supports conventional, multi-stage, and heat pump systems, including dual fuel, hybrid heat, auxiliary heat, and emergency heat.
    • Up to 10 Remote Room Sensors — Extend temperature and occupancy sensing beyond the thermostat location for better multi-room comfort.
    • Occupancy, Temperature & Humidity Sensing — Built-in sensing supports more intelligent HVAC control.
    • Advanced Heat Pump Control — Supports up to 4H/2C heat pump configurations and up to 2H/2C conventional systems.
    • 7-Day Smart Scheduling — Configure temperature, fan, and sensor preferences around daily occupancy patterns.
    • Preheating & Precooling — Helps reach the scheduled temperature at the desired time.
    • HVAC Energy Usage Reports — View daily, weekly, and monthly HVAC energy information.
    • Comfort & HVAC Protection — Fan circulation, adjustable temperature swing, maintenance reminders, and keypad lock.
    • Tuya Smart Connectivity — Remote control, scheduling, and compatible smart home automation.
    • Open API Support — Supports OEM and third-party smart HVAC integration projects.

    WiFi 24VAC smart thermostat for HVAC systems with touchscreen display PCT5231
    OWON PCT5231 white 24VAC smart WiFi thermostat for conventional and heat pump HVAC systems
    WiFi thermostat with up to 10 remote sensors for multi-zone HVAC temperature control
    24VAC WiFi thermostat compatible with heat pump, dual fuel, and conventional HVAC systems

    ▶Ideal Applications for PCT5231

    The PCT5231 is designed for North American 24VAC HVAC applications where multi-room sensing, heat pump control, and connected thermostat management are important. With support for up to 10 remote room sensors, it is particularly suitable for projects that need temperature and occupancy information beyond the thermostat location.

    Multi-Room Homes & Apartments

    Use remote room sensors to monitor conditions across bedrooms, living areas, and other spaces, helping reduce the impact of hot and cold spots.

    Multifamily & Property Management

    Suitable for apartment and managed residential projects requiring connected 24VAC thermostat control, scheduling, temperature limits, energy usage visibility, and multi-room sensing.

    Hotels & Extended-Stay Properties

    For properties using compatible 24VAC HVAC systems, PCT5231 can support multi-room temperature and occupancy sensing, scheduling, temperature limits, and remote thermostat management.

    Heat Pump & Dual-Fuel HVAC Systems

    Supports conventional, multi-stage, heat pump, dual-fuel/hybrid, auxiliary-heat, and emergency-heat applications, making it suitable for a broad range of North American HVAC projects.

    OEM & Smart HVAC Projects

    Available for HVAC equipment manufacturers, smart home brands, and system integrators that require a connected thermostat platform with remote sensing and API integration options.

    PCT5231 24VAC smart WiFi thermostat with up to 10 remote sensors, heat pump and dual fuel support, and Open API integration

    ▶FAQ:

    Q1: What HVAC systems is the PCT5231 compatible with?
    The PCT5231 is designed for North American 24VAC HVAC systems and supports up to 2H/2C conventional and 4H/2C heat pump configurations. It also supports multi-stage HVAC, dual fuel/hybrid heat, auxiliary heat, and emergency heat applications.
    Q2: How do remote room sensors improve multi-room HVAC control?
    The PCT5231 supports up to 10 remote room sensors for monitoring conditions beyond the thermostat location. Depending on the sensor configuration, room-level temperature, humidity, and occupancy information can support more flexible comfort management across bedrooms, living areas, apartments, suites, and other multi-room spaces.
    Q3: Does the PCT5231 work with the Tuya Smart platform?
    Yes. The PCT5231 connects to the Tuya Smart platform, enabling remote control, scheduling, automation, and integration with compatible voice assistants and smart home devices.
    Q4: Is the PCT5231 suitable for hotels and multifamily HVAC projects?
    Yes. For properties using compatible 24VAC HVAC systems, the PCT5231 is suitable for multifamily apartments, managed residential properties, hotels, and extended-stay applications that benefit from remote room sensing, scheduling, temperature limits, and connected thermostat management. Project requirements should be evaluated according to the HVAC system and property-control architecture.
    Q5: Can the PCT5231 be installed without a C-wire?
    The PCT5231 operates on a 24VAC HVAC system. For retrofit projects where a C-wire is unavailable, an optional C-wire adapter can simplify installation while providing reliable thermostat power.

    Compatibility

    HVAC systems
    • Works with most 24V heating and cooling systems, including furnaces,
    air conditioners, boilers, and heat pumps with either forced air or radiant
    delivery.
    • Conventional: 2-stage heating and 2-stage cooling HVAC systems
    • Heat Pump: 2-stage heating, 2-stage cooling, 2-stage Auxiliary or
    Alternative heating, Emergency heat
    • Supports Dual Fuel switching/Hybrid Heat

    Wiring Terminals

    Rc
    • 24VAC power from cooling transformer
    Rh
    • 24VAC power from heating transformer
    C
    • 24VAC common
    W1
    • 1st stage Primary heating relay in conventional system / Auxiliary or
    Alternative 1st stage heat in heat pump system
    W2
    • 2nd stage Secondary heating relay in conventional system / Auxiliary or
    Alternative 2nd stage heat in heat pump system / Emergency heat
    Y1
    • 1st stage Primary compressor contactor
    Y2
    • 2nd stage Secondary compressor contactor
    G
    • Fan relay
    O/B
    • Changeover valve for heat pumps
    S
    • C-Wire Adaptor terminal

    Connectivity

    Wi-Fi
    • 802.11 b/g/n @ 2.4GHz
    BLE
    • For Wi-Fi Pairing
    Radio
    • 915MHZ

    Physical Specifications

    Display
    • 3-inch single-color LED display
    • Acrylic front panel
    Control Interface
    • Touch-sensitive buttons
    Sensors
    • Occupancy
    • Temperature
    • Humidity
    Power
    • 24 VAC, 50/60 Hz
    Dimensions
    • 96 (L) × 96 (W)× 24 (H) mm
    Mounting Type
    • Wall Mounting
    Accessories
    • Trim plate
    • C-Wire Adaptor (Optional)

    Remote Zone Sensor

    Battery
    • 2*AAA batteries
    Radio
    • 915MHz
    LED
    • 2-color LED (Red, Green)
    Sensors
    • Occupancy
    • Temperature
    • Humidity
    Mounting Type
    • Tabletop stand or Wall mounting

     


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