Row of Carel e2V to e7V electronic expansion valves under the red cube

Photo: Mariusz Młynarczyk / CloudAir.tech

Red-headed electronic expansion valves from the e2V, e3V, e4V, e5V, e6V and e7V ranges line the top of a Carel display, colour-coded for HFC, CO2, NH3 and other refrigerants. The wall below explains compressor drive functions such as crankcase heater control and Safe Torque Off, beneath a suspended red Carel cube.