Main control board for controlling air-to-water individual units. Control of up to 3

speeds. Opening and closing of the electrovalves. Wired communications. Compatible

with 2-pipe and 4-pipe installations. Externally powered at 110 / 230 Vac. Mounted onDIN rail.

Functionalities:

· Input for detection of open windows.

· Input for detection of presence.

· Probe input.

· Two electro-valve control relays for demand.

· Three control relays for fan-speed selection.

· Automatic speed control based on the temperature differential.