▶Main Features:
• 24VAC HVAC & Heat Pump Compatibility — Supports up to 2H/2C conventional and 4H/2C heat pump systems, including dual fuel/hybrid, auxiliary heat, and emergency heat.
• Up to 10 Wireless Remote Room Sensors — Extend temperature and occupancy sensing beyond the thermostat for improved multi-room comfort.
• Occupancy, Temperature & Humidity Sensing — Built-in sensing supports more intelligent HVAC control.
• 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 WiFi App Control — Remote temperature control, scheduling, and compatible smart home automation through the Tuya Smart app.
• Open API Support — Supports OEM and third-party smart HVAC integration projects.
▶Ideal Applications for PCT5231
The PCT5231 smart WiFi thermostat is designed for residential, multifamily, and light commercial HVAC projects requiring multi-room comfort control, advanced heat pump compatibility, and connected thermostat management.
• Multi-Room Homes & Apartments – Improved comfort with wireless room sensors.
• Multifamily & Property Management – Connected HVAC control for residential properties.
• Hotels & Extended-Stay Properties – Smart temperature management for compatible 24VAC HVAC systems.
• Heat Pump & Dual-Fuel Systems – Advanced heating and cooling control for North American HVAC applications.
• HVAC OEM/ODM Projects – Customizable thermostat solutions for HVAC brands and system integrators.
▶ PCT5231 24VAC HVAC Wiring Diagrams
The OWON PCT5231 supports various 24VAC HVAC configurations, including conventional heating and cooling, multi-stage heat pumps with auxiliary and emergency heat, and dual-fuel systems.
The diagrams below show typical wiring configurations. For detailed installation instructions and system-specific wiring requirements, refer to the PCT5231 Quick Start Guide.
▶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 requires 24VAC power. For compatible HVAC systems without an existing C-wire, an optional C-wire adapter can be used to support installation.
Compatibility |
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HVAC systems
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• 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
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Wiring Terminals |
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Rc
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• 24VAC power from cooling transformer
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Rh
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• 24VAC power from heating transformer
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C
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• 24VAC common
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W1
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• 1st stage Primary heating relay in conventional system / Auxiliary or
Alternative 1st stage heat in heat pump system
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W2
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• 2nd stage Secondary heating relay in conventional system / Auxiliary or
Alternative 2nd stage heat in heat pump system / Emergency heat
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Y1
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• 1st stage Primary compressor contactor
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Y2
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• 2nd stage Secondary compressor contactor
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G
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• Fan relay
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O/B
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• Changeover valve for heat pumps
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S
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• C-Wire Adaptor terminal
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Connectivity |
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Wi-Fi
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• 802.11 b/g/n @ 2.4GHz
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BLE
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• For Wi-Fi Pairing
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Radio
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• 915MHZ
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Physical Specifications |
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Display
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• 3-inch single-color LED display
• Acrylic front panel
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Control Interface
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• Touch-sensitive buttons
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Sensors
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• Occupancy
• Temperature
• Humidity
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Power
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• 24 VAC, 50/60 Hz
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Dimensions
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• 96 (L) × 96 (W)× 24 (H) mm
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Mounting Type
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• Wall Mounting
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Accessories
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• Trim plate
• C-Wire Adaptor (Optional)
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Remote Zone Sensor |
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Battery
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• 2*AAA batteries
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Radio
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• 915MHz
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LED
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• 2-color LED (Red, Green)
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Sensors
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• Occupancy
• Temperature
• Humidity
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Mounting Type
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• Tabletop stand or Wall mounting
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