Carrier Pro-Dialog CONTROL 4 Bedienungsanleitung Seite 6
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The following table summarises the connections at the user terminal block.
Contact 1: Indoor unit
fan
J4 / CH8 32-33 NRCP-BASE
master
This contact can be used to reverse indoor
fan operation. If the contact is not used, it
must be jumpered.
24 V a.c. - 20 mA. Connection: 8-pin Wago 734-168,
pitch 3.5
Contact 2: Cooling 1 J4 / CH9 63-64 NRCP-BASE
master
This contact is used to control the rst
cooling stage: connected to thermostat.
Contact 3: Cooling 2 J4 / CH10 73-74 NRCP-BASE
master
This contact is used to control the second
cooling stage: connected to thermostat.
User safety loop input J4 / CH11a 34-35 NRCP-BASE
master
This contact can be used for any customer
safety loop that requires unit shut-down, if it
is open. If the contact is not used, it must be
jumpered.
Connection to solenoid
valve A1
J2B/CH21 52-12 Customer
terminal board
Contact used for solenoid valve control of
compressor A1
Maximum 18 VA - 10 W - 24 V a.c.
Connection to solenoid
valve A2
J2B/CH22 52a-12 Customer
terminal board
Contact used for solenoid valve control of
compressor A2
Maximum 18 VA - 10 W - 24 V a.c.
Alarm relay output J3 / CH24 30-31 NRCP-BASE
master
Indicates that the unit is in alarm condition Volt-free contact 24 V a.c., max. 48 V d.c., min. 20 V a.c.
or V d.c., max. 3 A, min. 80 mA min, external supply.
Connection: 4-pin WAGO 231-304/026000. pitch 5.08
CCN bus connection J12 NRCP-BASE
master
Permits connection of the CCN
communication bus
24 V a.c. thermostat
supply
R.C Customer
terminal board
Maximum 10 VA
Contact 1: Indoor unit
fan
J4 / CH8 32-33 NRCP-BASE
master
This contact can be used to reverse indoor
fan operation. If the contact is not used, it
must be jumpered.
24 V a.c. - 20 mA. Connection: 8-pin Wago 734-168,
pitch 3.5
Contact 2: Cooling 1 J4 / CH9 63-64 NRCP-BASE
master
This contact is used to control the rst
cooling stage: connected to thermostat.
Contact 3: Cooling 2 J4 / CH10 73-74 NRCP-BASE
master
This contact is used to control the second
cooling stage: connected to thermostat.
User safety loop input J4 / CH11a 34-35 NRCP-BASE
master
This contact can be used for any customer
safety loop that requires unit shut-down, if it
is open. If the contact is not used, it must be
jumpered.
Contact 2: Cooling 3 J4 / CH9 63-64 NRCP-BASE
slave
This contact is used to control the third
cooling stage: connected to thermostat.
Contact 3: Cooling 4 J4 / CH10 73-74 NRCP-BASE
slave
This contact is used to control the fourth
cooling stage: connected to thermostat.
Connection to solenoid
valve A1
J2B/CH21 52-12 Customer
terminal board
Contact used for solenoid valve control of
compressor A1
Maximum 18 VA - 10 W - 24 V a.c.
Connection to solenoid
valve A2
J2B/CH22 52a-12 Customer
terminal board
Contact used for solenoid valve control of
compressor A2
Maximum 18 VA - 10 W - 24 V a.c.
Connection to solenoid
valve B1
J2B/CH21 53-12 Customer
terminal board
Contact used for solenoid valve control of
compressor B1
Maximum 18 VA - 10 W - 24 V a.c.
Connection to solenoid
valve B2
J2B/CH22 53a-12 Customer
terminal board
Contact used for solenoid valve control of
compressor B2
Maximum 18 VA - 10 W - 24 V a.c.
Alarm relay output J3 / CH24 30-31 NRCP-BASE
master
Indicates that the unit is in alarm condition Volt-free contact 24 V a.c., max. 48 V d.c., min. 20 V a.c.
or V d.c., max. 3 A, min. 80 mA min, external supply.
Connection: 4-pin WAGO 231-304/026000, pitch 5.08
CCN bus connection J12 NRCP-BASE
master
Permits connection of the CCN
communication bus
24 V a.c. thermostat
supply
R.C Customer
terminal board
Maximum 10 VA
Room sensor input J6 / CH1 278-0
278-1
Customer
terminal board
Permits connection of the room air sensor if
the control mode is selected.
NTC10 K
Contact 1: Start of
occupied mode
J4 / CH8 278-2
278-3
Customer
terminal board
This contact can be used to start unit operation
outside pre-dened occupany periods.
Push button
Setpoint oset input J6 / CH1 278-4
278-5
Customer
terminal board
Permits connection of the room air sensor,
includes a potentiometer to oset the setpoint
10 K
Supply air sensor input J6 / CH2 278-6
278-7
Customer
terminal board
Permits connection of the supply air sensor NTC 5 K
Output for indoor unit
fan control
J2B/CH23 278-6
278-8
Customer
terminal board
This contact can be used to control the
indoor fan or to signal that the unit is running
Maximum 18 VA - 10 W - 24 V a.c.
Output for indoor unit
fan control
J3 / CH24 NRCP-BASE
slave
This contact can be used to control the
indoor fan
Volt-free contact 24 V a.c., max. 48 V d.c., min. 20 V a.c.
or V d.c., max. 3 A, min. 80 mA, external supply.
Connection: 4-pin WAGO 231-304/026000, pitch 5.08.
One terminal strip per board.
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