NEO
fl
o
Water
Heater
19
September
2015
On/Off
Switch
X1.1
X1.3
X1.5
X1.8
X1.10
FAN
R
B
X3.1
X3.8
X3.16
X3.3
X3.12
X3.4
X3.14
X3.5
X3.11
X3.13
X3.2
X3.10
X1.7
X1.9
X1.2
Flue Hi Limit
L
N
Remote Enable
LINK: Remove if seperate
switched live provided
G/Y
Br
B
Br
HEAT DEMAND
LOCKOUT ALARM
DE-START PUMP
L
N
N
FLAME LED
FLUE HI LIMIT
TANK SENSOR
Lockout
Running
On
X1.6
FLAME PRESENCE O/P
De-Strat
N
N
X3.18
X3.15
X3.6
ERROR LED
X3.7
HIGH LIMIT SENSOR #2
X3.9
HIGH LIMIT SENSOR #1
X3.17
DHW SETPOINT
GND
X201.1
X201.3
X201.4
X201.5
X201.2
+M
GND
+12V
RPM
-M
N
X2.1
X2.4
X2.6
X2.3
X2.5
24Vdc
Gnd
Open Therm
X2.2
Rx
Tx
LCD Display
X4.1
X4.2
X4.3
X4.4
X4.5
X4.6
Bk Black
B Blue
Gy Grey
Gy/Bk Grey/Black
Br Brown
P Pink
V Violet
Y Yellow
R/B Red/Blue
Or Orange
W White
G/Y Green/Yellow
R Red
G Green
R/Br Red/Brown
Gy/B Grey/Blue
R/Br
Or
P
R/Br
R/Br
B R Bk
Bk
Open Therm
P
V
R/B
G
Y
Gy
R
Gy/B
R
Bl
Br
Gy
W
Gy/B
Gy
Bk
R
V
Y/R
P
V
R/B
G
Y
DSP49G1053
BURNER
CONTROL
Y/R Yellow/Red
Or
WIRING DIAGRAM
Summary of Contents for NEOflo SC25/200
Page 32: ...Published date November 2015...