Connections At The User Terminal Block - CIAT PRO-DIALOG+ Instruction Manual

3 - HARDWARE DESCRIPTION

3.6 - Connections at the user terminal block

3.6.1 - General description
The contacts below are available at the user terminal block on
the NRCP2-BASE boards. Some contacts can only be used if
the unit operates in remote operating type (Remote).
NRCP2-BASE control board
J2A
J2B
J3
J4
The following table summarises the connections at the user terminal block.
Description
Contact 1: Start/stop
Contact 2: Heating/cooling selection
Contact 3: Demand limit selection 1
Customer safety loop input
Contact 3 bis: Demand limit selection 2 J5/CH 12
Setpoint selection
Desuperheater contact
Heat exchanger heater command
Command, water pump 1
Command, water pump 2
Alarm relay output
Unit operation relay output
Network connection
Setpoint selection
Contact 3 bis: Demand limit selection 2 J4/CH 10
Relay output for boiler command
Triac output for boiler command
Triac output for boiler command
EREBA ACCESS
Connector/ Terminal Board
channel
J4/CH 8 32-33 NRCP2-BASE
J4/CH 9 63-64 NRCP2-BASE
J4/CH 10 73-74 NRCP2-BASE
J4/CH 11A 34-35 NRCP2-BASE
NRCP2-BASE
J5/CH 13 NRCP2-BASE
J5/CH14 NRCP2-BASE
J2B/CH 21 NRCP2-BASE
J2B/CH 22 NRCP2-BASE
J2B/CH 23 NRCP2-BASE
J3/CH 24 30A-31A NRCP2-BASE
J3/CH 25 37-38 NRCP2-BASE
J12 NRCP2-BASE
J4/CH 8 65-66 NRCP2-SLAVE
75-76 NRCP2-SLAVE
J3/CH 25 NRCP2-SLAVE
J2B/CH 20 NRCP2-BASE
J3/CH 5 PD-AUX
J12
Remarks
Used with the remote operating mode (Remote).
Used with the remote operating mode (Remote) in accordance with the boiler or
heat pump configuration
Unit without NRCP2-SLAVE board.
Used with the remote operating mode (Remote), unit without NRCP2-SLAVE board.
Used on units with desuperheater
Frost protection, when the unit is stopped.
The change-over between the two pumps is configurable
RS-485 series connection
- Pin 1: signal +
- Pin 2: ground
- Pin 3: signal -
Used with the remote operating mode (Remote), unit with NRCP2-SLAVE board.
Used with the remote operating mode (Remote), use of NRCP2-SLAVE board,
depending on the size
Use of NRCP2-SLAVE board, depending on the size
Cooling only unit without NRCP2-SLAVE board
Heat pump unit without NRCP2-SLAVE board
EN - 4
Optional PD-AUX board
J3