4T01

Electronic digital device designed to work alone or with further 4To1s to control zoned heating systems

In stand-alone mode some configurations are supported (1LT + 1HT, or up to 4HT), and further ones are available if it's connected to other 4To1 (or to Master Zone) and as a part of the system "One for All, All for One". The remote units connected via Bus allow to read anomalies, and manage parameters regarding the heating plant. 5 leds  (ON, OFF, blinking) are on board for basic diagnostics and to check the status of the zoned heating systems.
LT Zones are controlled by remote unit, one pump, one diverting valve, one temperatura probe and high limit switch. In case HLS is activated only HT zone runs.
Most of the available functions can be activated through SW parameter, like Outside Temperature compensation (OTC), and smart algorithms have been developed in order to optimize the heating management.