
We reserve the right to make changes without prior notice
32
NO15
Free cooling/heating enabled
NO16
Cycle reversing valve in circuit 2
NO17
Heating valve status
NO18
Humidifier ON/OFF control
Analogu
e
outputs
Y1
External air damper
Heat recovery analogue output
Y2
Supply plug-fans
Modulating control in humidifier
Y3
Axial fans circuit 1
Hot water coil valve
Y4
Return plug-fan
Y5
Axial fans circuit 2
Y6
Recirculation air damper