ESi ESRTP4+ Wired Programmable Room Thermostat with OpenTherm Sensor ar-callout

ar-callout

What warranty does this rail carry

The three-phase system is achieved by distributing units evenly across L1

managing temperature and flow automatically

Stainless Steel Heat Exchanger

ESi ESRTP4+ Wired Programmable Room Thermostat with OpenTherm Sensor ar-calloutThe ESi ESRTP4+ is a wired programmable room thermostat that combines time and temperature control in a single wall mounted unit, without a separate RF receiver to install. It provides the same core energy saving intelligence as the wider ESi programmable range, including Chronoproportional Control (TPI), Delayed Start, Optimum Start, and Optimum Stop, alongside an OpenTherm interface for compatible boilers. Wired directly into the heating circuit via