STANDARD INPUT/OUTPUT
CLIMATIC™50 –
Chiller / Heat Pump
–
Customer version
Page 14
CL50-CHILLER-IOM_CUST-0808-E
Function
The Climact
ic™50 main board (BM.50) offers free dry contact
s to control the unit. These free dry contacts are
connected directly to terminals (orange colour) identified as follow:
[824 - 825] : 24V relay customers power supply (Option),
[826 - 827] : 24V power ON the unit (Option),
[804 - 805] : Remote alarm reset (NC = Enable Reset),
[808 - 809] : Water evaporator customer flow switch,
[890 - 891] : Remote ON / OFF of the unit.
[870
–
871 - 872] : Alarm relay (NC = Alarm OFF).
Connection
The following figure described how to connect the free dry contacts of
Climactic™50.
For the contacts [824 - 825] and [826 - 827], refers to the electrical diagram.
Remote ON / OFF
Open = Unit OFF
Closed = Unit ON
890
891
Remote Reset Alarm
Open = Reset OFF
Closed = Reset ON
The reset is enable only on a
positive front edge of the signal
( ).
804
805
Water Evaporator Flow Switch
Open = Flow OFF
Closed = Flow ON
808
809
