Electrolux EN18WI30LS, Service Manual

Page: 18 / 46

<EN19WI30LS, EP19WI30LS>
18
Y
PO
WE
R
CIR
CUIT
BOAR
D
<CN102> G
<CN78>
<CN186>
MAIN CIR
CUIT
BOAR
D
R
BL BL
W
BK
G
BL
O
R
G
BL
<CN101>
<CN42>
R
O V
W BL
G
Y
BK
Y
R
<CN38>
<CN197>
BK
BL BL
W
<CN103>
BK BK
W
<CN92>
O
<CN104>
W
Y
R
<CN27>
BL BR Y
HEAT EXCHANGE
R
FLOW SENSOR
BL
BL
R Y
R Y
(GND)
(Vcc)
(P
ulse
)
GY
W
R
BL
BL
Minimum Manifold P
ressure Set Button
Maximum Manifold P
ressure Set Button
BL W G
R BK
BL
Quick Connect
Cord 2(Optional)
ＢＬ
Ｗ（Ｒ） ＢＫ（Ｇ） Ｒ（Ｗ） Ｇ（ＢＫ）
ＢＬ
(ＢＫ)Ｇ (Ｒ)Ｗ
ＢＬ
(Ｗ)Ｒ (Ｇ)ＢＫ
ＢＬ
Other Unit
in Q
uick Connect
Mult
i System
(For Quick Connect Mult
i Sy
st
em Only)
Decrease But
ton
Increase Butt
on
Manifold Gas P
ressure
Manifold Gas P
ressure
BL
BL
<CN186>
BL
G
R
BK W
BL G R BK W
MAIN CIRCUIT
BOARD
FLAME ROD
BL
R
R
R
(Vcc)
FAN MOTOR
BL(GND)
BR
(Vdc) Y(FG)
BR
BL
Y
BR BL
Y
G
GROUND
LIGH
TNING
P
R
OTECTION
CIRCULATIO
N P
UMP
(OP
TIONAL)
FRE
EZ
E P
RE
VENTION HE
ATER
W
W
W
HEAT EXCH
ANGER
FLOW CONTR
OL
VALVE
R
R
(VCC) (Fully
open)
(GND)
BL
Y
BL
Y
(VDC)
BK V
G O
W
BK V
G O W
BL BL BL BK
W
HIGH-LIMIT
SWITCH
W W
W W
THE
RMAL F
USE
R
BK
R
BK
R
BL
Ｒ
BK BK
W W
BL
R
BK(W)
W(BK)
BK
W W
W W
W
W
W W
W W
W W
W W
W W
W W
G
GROUND
G
GROUND
<DIP
SWITCH>
FLAME DETECTING CIRCUIT
GAS P
ROP
O
RTION VALVE
P
OWER CO
NTR
OL CIRCUIT
WATER
FLOW SENSOR
15V PO
WER CIRCUIT
HEAT EXCH
ANGER FLOW CONTRO
L VALVE
DC15V
GND
DC140V
HOT
HEAT EXCHANGER THERMISTOR 5V P
OWER CIRCUIT
AIR INLET THERMISTOR
FLAME ROD
FR
DU
EAR
TH
RELAY 2
D
GND
WATER
OUTLET
THERMISTOR WATER
INLET
THERMISTOR FAN P
ULSE
CONTROL CIRCUIT
RELAY DRIVING CIRCUIT
RELAY 1
CPU CENTRAL P
R
OCESSING
UNIT
D
FAN CURRENT VALUE INPUT
P
OWER
CONTRO
LLER
DC12V
C
SECONDARY P
RIMARY
CO
MBUTION FAN
FAN
FAN CONTROL OUTPUT
FAN ROTATION SP
EED INP
UT
DC140V
C
Sub-CP
U
SUB
CO
NTROL
UNIT
A B
EARTH
AR
RESTER
NEUTRAL
VARISTOR
RELAY 2 RELAY 1
FREEZE P
REVENTION
HEATER
CIRCULATION P
UMP
10A(FUSE)
VARISTOR
SOLENOID VALVE 0
SV0 SV3 SV2 SV1
SOLENOID VALVE Q2 SOLENOID VALVE Q3 SOLENOID VALVE Q1
HIGH
LIMIT
SWITCH
IG
IGNITER
E
E
IG DRIVING CIRCUIT
GAS SOLENOID VALVE DR
IVING CIR
CUIT
THERMAL FUSE
W
W
WATER LEVEL
ELECTRODE
W
(GND)
R
W
R
W R BL
W
W W
W W
W W
W W
W W
W W
W W
W W
EXH
AUST
THERMISTOR
<CN89>
REMOTE CONTROLLER
BL BL
W W
W W
BK(W) W(BK)
<AC120V>
BR
: Brown
Y : Yellow
R
: Red
O : Orange
BK : Black GY : Gray
G : Green BL : Blue V : Violet
W : White
COLOR CODING
WIR
ING DIAGRAM
B
A
BYP
ASS FLOW
CONTROL
VALVE
SV4
SOLENOID VALVE Q4
BYP
ASS
FLOW CONTRO
L
VALVE
R
R
(VCC) (Fully
open)
(GND)
BL
Y
BL
Y
(VDC)
BK V
G O
W
BK V
G O
W
Y
G
O
V
BK
O
BL
BL
R
W
BK W
ELECTRODE
W
BK
IGNITE
R
GROUND
W
W
R
HEAT EXCHANGER THE
RMISTOR
WATER O
UTLET
THE
RMISTOR
AIR INLE
T
THE
RMISTOR
WATER INLET THE
RMISTOR
EXHAUST THE
RMISTOR
BL BL
BL BL
WATER
LEVEL ELECTRO
DE
DETECTIO
N CIRCUIT
BR