2. TRIANGLE TUBE
  3. Optimal Series SCCI

TRIANGLE TUBE Optimal Series SCCI, Optima Series SCCI Operating instructions

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The SCCI Interface provides the SCC4 (modulating
boiler control) with the capability of receiving an
external Set Point as a 4-20mA signal through an
Energy Management Systems or Building Management
Systems (EMS/BMS). In addition, the SCC4 can be
shutdown by the EMS/BMS system.


• The signal must be a two-wire 4-20mA.
• A system sensor must be installed to the SCC4.
• The External Set Point must be set up correctly (See SCC4
documentation). These settings will allow the SCC4 to read and
monitor the system temperature and also monitor the 4-20mA input
to remotely adjust the set point to the desired value.
• The SCCI Interface can source the current for the 4-20mA input
signal. It provides an excitation DC current. If using the SCCI
Interface to source the power, attach the (+) side of the EMS/BMS
signal to the SCCI Interface terminal marked +. Attach the (-) side
of the EMS/BMS signal to the SCCI Interface terminal marked
SIGNAL.
• If the EMS/BMS or other equipment signal sources the current
(provides the excitation voltage), attach the (+) side of the 4-20mA
input to the SCCI Interface terminal marked SIGNAL. Attach the
(-) side of the 4-20mA input to the SCCI Interface terminal marked
GND.
4-20mA INPUT
+
Signal GND
1
2
3
RS485
EXTENSION
CONNECTORS
SCCI
4-20mA Interface
(-)
SCCI Interface Sources
DC Excitation Voltage
(+)
EMS/BMS Input
4-20mA INPUT
+
Signal GND
1
2
3
RS485
EXTENSION
CONNECTORS
SCCI
4-20mA Interface


SCCI



(-)
EMS/BMS Sources
Excitation Voltage
(+)
EMS/BMS Input
4-20mA INPUT
+
Signal GND
1
2
3
RS485
EXTENSION
CONNECTORS
SCCI
4-20mA Interface
2 TriangleTube

TheSCCIInterfacecaneithersourceDCcurrentoracceptDCcurrentfromandEMS/
BMSSystem.Eachcongurationhasadifferentwiringschematic.Wiringthecurrent
tothe“+”and“Signal”terminalswilldamagetheSCCIInterface.

• The SCCI Interface connects to the SCC4 using an RS485 (phone plug).
• When having to use the RS485 to connect to Extensions, use the extra RS485 (phone plug).
• The control, SCCI Interface and two Extensions can be connected in series using the RS485.
F
H
J
Power
PWR
L N
1 2
E
3 4
F
5 6
G
7 8
H
9 10
I
11 12
EXTENSION
MODULE
RS-485
Ext A
E
G
I
Comm
Ext B
K
M
O
L
N
P
1716
VLTmA
CUR / VLT
201916
VLTmAGND
CUR / VLT
232219
VLTmAGND
CUR / VLT
262522
VLTmAGND
CUR / VLT
J
13 14
K M OL N P
E F G H
K ML N
15
GND
18
GND
21
GND
24
GND
2928
VLTmA
CUR / VLT
323116
VLTmAGND
CUR / VLT
27
GND
30
GND
I J
O P
SCCX6 Extension A
F
H
J
Power
PWR
L N
1 2
E
3 4
F
5 6
G
7 8
H
9 10
I
11 12
EXTENSION
MODULE
RS-485
Ext A
E
G
I
Comm
Ext B
K
M
O
L
N
P
1716
VLTmA
CUR / VLT
201916
VLTmAGND
CUR / VLT
232219
VLTmAGND
CUR / VLT
262522
VLTmAGND
CUR / VLT
J
13 14
K M OL N P
E F G H
K ML N
15
GND
18
GND
21
GND
24
GND
2928
VLTmA
CUR / VLT
323116
VLTmAGND
CUR / VLT
27
GND
30
GND
I J
O P
SCCX6 Extension B
Connecting SCC4 to Two SCCX6 Extension
Panels and SCCI 4-20mA Interface using RS485
SCC4
SYSTEM
A
B
C
D
1
2
RUNPROGRAM
DO NOT APPLY ANY VOLTAGE
TO INPUT TERMINALS
3
4
5
6
7
8
9
10
11
12
13
15
14
17
16
18
22
20
19
21
24
23
29
25
27
26
28
32
30
31
L
N
-
+
+
T
T
O
O
RS-485
mA
GND
VLT
SYS
A
B
C
D
PWR
CUR / VLT
A
-
+
+
mA
GND
VLT
-
+
+
mA
GND
VLT
-
+
+
mA
GND
VLT
+
mA
TEMP
OUTDOOR
O
O
TEMP
SYSTEM
EXTENSION
MODULE
CUR / VLT
B
CUR / VLT
C
CUR / VLT
D
---
---
PROVE
/DHW
SHUTDOWN
/SETBACK
/TSTAT
SCC4
SCCX6
SCCX6
(-)
EMS/BMS Sources
Excitation Voltage
(+)
EMS/BMS Input
4-20mA INPUT
+
Signal GND
1
2
3
RS485
EXTENSION
CONNECTORS
SCCI
4-20mA Interface
059131-00Rev.A
1TriangleLn.Blackwood,NJ08012 http://www.triangletube.com
Ph:856.228.8881Fax:856.228.3584
/