HVAC Control Solution for Residential and Light Commercial Buildings

OWON’s HVAC Control Solution is a modular, scalable platform designed for residential, hospitality, apartment, and light-commercial buildings.

Unlike standalone thermostats, our HVAC solution integrates Zigbee and Wi-Fi thermostats, field devices, gateways, and cloud or local management systems into a unified architecture.

Built upon OWON’s IoT device expertise and integration APIs, the system supports both European heating systems and North American 24VAC HVAC systems within a flexible deployment framework.

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Zigbee vs Wi-Fi HVAC Control Architecture

To help system integrators, HVAC manufacturers, and solution providers quickly select the right control architecture, the key differences between Zigbee-based and Wi-Fi-based HVAC systems are summarized below:

Item	Zigbee Heating System (EU)	Wi-Fi HVAC System (US / Middle East)
Target Market	Europe	North America / Middle East
HVAC Type	Boiler, Radiator, Underfloor	Furnace, Heat Pump, AC
Control Type	Multi-room zoning	Central HVAC control
Key Devices	PCT512, TRV527, Gateway	PCT523, PCT533, Sensors
Network	Zigbee Mesh	Wi-Fi
Integration	MQTT / Local API	Cloud API / Alexa / Google
Typical Projects	Residential heating, apartments	Smart home, utility programs
Deployment Mode	Local + Cloud	Cloud-centric

Both architectures are fully supported by OWON, enabling flexible deployment across different regions and HVAC system types.

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Scalable Wireless-BMS Architecture

To better understand how OWON’s HVAC solution is structured, the system architecture is organized into multiple layers, from field devices to cloud platforms:

Layer	Devices	Function	Value for Integrators
Field Devices	Thermostats, TRV, Sensors	Collect temperature, humidity & occupancy data	Enables precise automation triggers
Control Layer	Zigbee / Wi-Fi Thermostats	Control HVAC equipment (boiler, AC, heat pump)	Supports multiple HVAC system types
Gateway Layer	Zigbee Gateway	Device aggregation & local logic control	Ensures offline operation & stability
Platform Layer	Cloud / Private Server	Remote monitoring & centralized control	Scalable multi-site management
Integration Layer	MQTT / TCP APIs	Connect to BMS / Apps / Cloud systems	Enables custom system development

This layered architecture enables system integrators and solution providers to build flexible, scalable HVAC control systems tailored to residential and light commercial projects.
For larger deployments, the system can be extended into a full Wireless BMS system, enabling centralized management across multiple buildings, floors, and devices.

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Local + Cloud Hybrid Control

OWON HVAC systems support:

 • Local Mode (No Internet required)
• Internet Mode (Cloud-based remote control)
• AP Mode (Direct gateway access)

Device-level MQTT / TCP APIs allow system integrators to:

 • Build custom backend servers
• Integrate into BMS platforms
• Develop proprietary mobile apps
• Implement energy optimization logic