Control gateway for air-to-water air conditioners. Control up to three fan-speeds and the opening and closing of valves. Compatible with 2 pipes or 4 pipes air conditioners. Externally powered at 230 Vac. Mounted on DIN rail or on wall.

Functionalities:

• Two electro-valve control relays for demand.
• Three control relays for fan-speed selection.
• Automatic speed selection according to the number of zones on demand.