Government-Driven Residential Heating Energy Saving System

Background

A government initiative to reduce residential heating energy consumption required a system that manages all mainstream European heating equipment — boilers, heat pumps, hot water, hydraulic and electric radiators, underfloor heating. Critical requirements: full offline operation, mobile app control without a Wi-Fi router (AP mode), and complete device-level local APIs for custom cloud and mobile development.

Our Solution

OWON provided a full ZigBee ecosystem centered on an Edge Gateway. PCT512 controls boilers/heat pumps, TRV517 handles hydraulic radiators, PIR323 + SLC621 manage electric heaters, and THS317-ET + SLC651 control underfloor heating. The gateway supports three modes — Local (same Wi-Fi), Internet (remote cloud), and AP (direct hotspot). TCP/IP and MQTT APIs provided for system integration.

• Provide various field devices to control HVAC equipment: PCT512 controls the boiler or heat pump; TRV517 controls hydraulic radiators in each room; PIR323 + SLC621 detect room temperature and control the electric heater using the Smart Relay; THS317-ET + SLC651 detect floor temperature and control the manifold using the Underfloor Heating Controller.
• Provide an Edge Gateway to support multiple system working modes: Local mode (mobile app accesses the Edge Gateway under the same Wi-Fi router), Internet mode (mobile app accesses the cloud server and controls the HVAC system remotely), AP Mode (mobile app accesses the Edge Gateway directly while the gateway works as a Wi-Fi hotspot).
• Provide APIs for System Integration: OWON TCP/IP API designs the mobile APP supporting Local Mode and AP Mode; OWON MQTT API designs the cloud server and mobile APP under Internet Mode.