Solutions / HVAC Zone Control

Wireless HVAC zone control via BACnet/IP and Modbus TCP

Thread mesh sensor nodes feed occupancy and CO2 data to your existing chiller, boiler, and AHU control systems — no gateway middleware required.

Request HVAC Pilot

Integration approach

Direct BMS integration — no extra server

MK-GW-1000 translates Thread sensor data to BACnet/IP or Modbus TCP natively. Your existing BMS polls the gateway like any other BACnet device on the network.

BACnet/IP object model

Each sensor node appears as a BACnet device with standard analog input objects for temperature, humidity, CO2, and occupancy. Your BMS sees it like a wired sensor.

Modbus TCP register map

Standard Modbus TCP slave register map for Siemens, Honeywell, and Johnson Controls systems. Register addresses are configurable per zone to match your existing BMS addressing scheme.

Occupancy-driven setpoints

Feed live occupancy counts from MK-NODE-OCC directly to HVAC zone setpoint logic. Unoccupied zones setback automatically, reducing heating/cooling to unoccupied spaces.

Compatible systems

Tested BMS compatibility

Johnson Controls Metasys

BACnet/IP + Modbus TCP. N2 bus adapter available. Tested with JCi Network Automation Engines (NAE).

Siemens Desigo CC

BACnet/IP native. Point mapping via Desigo BACnet driver. Tested with PXM50 / PXM40 controllers.

Honeywell Niagara Framework

BACnet and Modbus TCP drivers. Node-RED integration for custom logic. Tested with Niagara 4.x.

Retrofit HVAC controls without rewiring

We map your existing BMS addressing before any hardware ships. Pilot typically 50–100 nodes in one HVAC zone.