24V One Single Fan HVAC Thermostat Modulating Valve Clear Interface
Quick Summary This HTW-FC01-2PM hvac thermostat is designed for basic 2-pipe fan coil systems. It controls a single-speed fan and a modulating water valve. The unit supports both heating and cooling modes. It uses a 24Vac power supply and simple control logic. This page explains how it works in real FCU systems, covering control functions, […]