andrews NEOflo SC25/200 Installation, Operation And Maintenance Manual page 21

WIRING DIAGRAM
LCD Display
DSP49G1053
B Blue
Bk Black
Br Brown
G Green
G/Y
Gy Grey
Gy/Bk
Gy/B
Or Orange
P Pink
R Red
R/B Red/Blue
R/Br Red/Brown
V Violet
W White
Y Yellow
Y/R Yellow/Red
NEOfl o Water Heater
N
N
B R Bk
Or
B
G/Y
R/Br
R/Br
P
X4.1
V
X4.2
R/B
X4.3
G
X4.4
Y
X4.5
X4.6
Green/Yellow
Grey/Black
Grey/Blue
FAN
LINK: Remove if seperate
L
switched live provided
Br
P
Switch
On/Off
R/Br
Or
R
Br
Bk
B
P
V
R/B
G
Y
Gy
R
Gy/B
R
Bl
Br
Gy
Gy/B
W
Gy
Bk
R
V
Y/R
19
X1.1 HEAT DEMAND
X1.2
LOCKOUT ALARM
DE-START PUMP
X1.3
X1.5 L
FLAME PRESENCE O/P
X1.6
N
X1.7
N
X1.8
N
X1.9
X1.10 N
X2.1 24Vdc
X2.2 Rx
X2.3 Open Therm
Gnd
X2.4
X2.5
Tx
X2.6
Open Therm
BURNER
X3.1
CONTROL
X3.2
X3.3
FLAME LED
X3.4
X3.5
FLUE HI LIMIT
X3.6
ERROR LED
X3.7 HIGH LIMIT SENSOR #2
TANK SENSOR
X3.8
X3.9
HIGH LIMIT SENSOR #1
X3.10
DHW SETPOINT
X3.11
X3.12
X3.13
X3.14
X3.15
X3.16
X3.17
X3.18
GND
X201.1
+M
X201.2
GND
X201.3 +12V
X201.4 RPM
X201.5 -M
September 2015