FCRY 3 is a 3 speed fan coil control relay, with 0..10Vdc control input.
Adjustable switching voltages and hysteresis. 24 Vac/dc power supply. 3
x 230 Vac 8 A relays. Internal interlocks prevent simultaneous
switching. Often used with a room controller.
Relays are interlocked so that only one relay (RL1, RL2 or RL3) can be active at a time. Active relay is indicated by an indicator light (1, 2 or 3).