72
FIGURE 11.
System Wiring Diagram (E110)
NXD410 (front)
NXD410 (rear)
1
1
1
1
1
Shield
Twisted
Pairs
Jacket
Drain
24Vdc (Red)
Servo B (RS-485 -)
Servo A (RS-485 +)
Jacket
1
Daisy
Chain
Wiring
To Next
Servo
6
7
14
15
P2
P12
P11
P13
P3
P15
24Vdc (Red)
24Vdc Return (Black)
24 Vdc (Red)
24 Vdc Return (Bla
1
2
3
4
5
6
7
9
10
8
11
2
3
4
5
6
7
8
9
10
11
1
1
1
12
10
12
11
2
3
8
9
7
6
5
4
1
1
2
1
1
3
2
1
1
1
6
5
4
3
1
2
TDB-
TDB+
59-562-2
Burner Switch
and other
Recycling Running
Interlocks
FX20-1
(ORG)
(BRW)
All drain wires to be attached to
grounding screw (EARTH)
+
+
-
AUX1
PCV
T
P
T
P
P
T
-
AUX1
B
B
A
A
Touchscreen/
Modbus
Boiler
Sequencing
Consult the NXTSD-4001
bulletin for connection to
a touchscreen.
T
Inlet
temp
sensor
PCV
24Vdc Return (Black)
Display Tx (Yellow)
Display Ty (Blue)
Display Rb (Brown)
Display Ra (Orange)
24Vdc
Earth ground and
all drain wires
connect here.