All-in-one Design Smart Thermostat WiFi RS485 Modbus

Quick Summary HTW-FC24-Altra is a fan coil smart thermostat for FCU projects that need flexible fan and valve control. It supports 3-speed fan control and EC fan control. It can work with 2-pipe or 4-pipe systems, including on/off valve control and modulating valve control under a suitable configuration. This page explains how the model works […]
HVAC Thermostat Modbus 2 Pipe 4 Pipe Modulating Thermostat Keycard Remote Sensor Popular Design

Quick Summary HTW-EW002 is a Modbus HVAC thermostat designed for fan coil unit control in hotel, apartment, and light commercial rooms. It uses a split structure with a wall thermostat and a DIN rail relay module. It can control 3-speed fans, EC fans, 2-pipe or 4-pipe systems, and configurable valve outputs. This page explains the […]
Powerful Split Thermostat FCU Controller RS485 Modbus Digital Modulating Controls

Quick Summary HTW-EW002-WG is a split thermostat for fan coil unit systems using a separate wall thermostat and relay module. It controls 3-speed fan or EC fan operation, 2-pipe or 4-pipe systems, and on/off or modulating valves. It supports heating and cooling control, external sensor input, keycard, window card, and Modbus communication. This page explains […]