differential thermostat solar

It drives both conventional and PWM circulators at constant speeds and has an output for activating the auxiliary source (burner, electric resistor).

If your solar system consists of a collector field, a dual or triple energy boiler with two or more sensor positions and an external power source such as a boiler this is the controller you should choose.

Incorporates useful features such as:

Constant circulator speed control (conventional or PWM)
Connection with 2 or 3 sensors with automatic recognition of the 3rd sensor
Sensors (2 included) RS301k5, PS301k0
Antifreeze, electrostatic and triple lightning protection
Advanced self-diagnosis system.
Flexible 2-way menu
Continuous operation of the circulator in case of failure
Set minimum pump circulation temperature