75
PRO-
EN
2.11.3 Connections to be performed by the installer
All connections that can be made through the terminal board for external connections are summed up in the following table.
Description
Connector/Channel
Terminal
Board
Notes
Contact 1: Run / Stop
J4/CH 8
32-33
NRCP2-BASE
Used for operation mode with remote control (Remote).
Contact 2: Heating / Cooling selection
J4/CH 9
63-64
NRCP2-BASE
Used for operation mode with remote control (Remote)
according to the heat generator or heat pump configuration.
Contact 3: Selection of absorbed power limit 1 J4/CH 10
73-74
NRCP2-BASE
External safety loop input
J4/CH 11A
34-35
NRCP2-BASE
Alarm relay output
J3/CH 24
30A-31A
NRCP2-BASE
Device operation relay output
J3/CH 25
37-38
NRCP2-BASE
Connection to CCN network
J12
NRCP2-BASE
RS-485 serial connection
- Pin 1:
- Pin 2: Earth
- Pin 3: Signal -
Output from triac for heat generator control
J2B/CH 20
NRCP2-BASE
Cooling only unit, without NRCP2-SLAVE board
Output from triac for heat generator control
J3/CH 5
PD-AUX
Heat pump unit, without NRCP2-SLAVE board.
CR
Remote on/off contact
CS
Load limitation or setpoint management contact
CRH Heating/cooling mode switch contact
OC
Compressor on/off signal output
OA
Remote alarm signal output
CCS
System control contact
CCS CS CRH CR
OA OC
J4
J3
J2B
J2A
Scheda
PD-AUX
Scheda
NRCP2-BASE
J3
J12
35 34 74 73 64 63 33 32
30A 31A 37 38