Temperature regulator EL-480 MULTI zPID is designed for central heating boilers equipped with an a screw feeder. Controls the water circulation pump, pump hot water, underfloor heating pump,circulation pump, blower (fan) and fuel feeder. The controller has a built-in control module to the valve. The device can also operate with two mixing valves (via additional modules ST-61), room temperature regulator or with RS, GSM module and Ethernet module.

The advantage of this driver is its simplicity to use.The user makes any changes parameters using the encoder knob. Another advantage is the large and clear graphic display which the user sees exactly the current state of the boiler.

Controller EL-480 MULTI zPID a controller with continuous output signal using a modified PID control algorithm. In this type of fan power driver is calculated based on the measured temperature of the boiler and the exhaust gas temperature measured at the boiler outlet. Fan operation is carried out continuously over time, and the fan power depends directly on the measured temperature of the boiler, flue gas temperature and the difference of these parameters and their setpoint values. To maintain a stable setpoint temperature without unnecessary overshoot and oscillations are the advantages regulator zPID.

Using this type of sensor controller exhaust fuel savings can range from a few to several percent; the temperature of the output water is very stable, resulting in longer life of the heat exchanger (boiler). Checking the flue gas temperature at the outlet causes a low emission of dust and gases harmful to the environment. Thermal energy from the flue gas is not wasted and released into the chimney, but used for heating.