Ideal Boilers LOGIC MAX HEAT H 18, Installation & Servicing

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38
Installation and Servicing
SECTION 2 - INSTALLATION
2.24 WIRING DIAGRAM
3
2
1
6
5
4
3
2
1
3
2
1
6
5
4
3
2
1
6
5
4
3
2
1
6
5
4
3
2
1
8
7
6
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
SER
VICE
CONNECT
OR
2 3 4
1
PE
1
5
2
N
2
1
2
3
L
3
1
C
ha
ss
is
Earth
SL 1 - IN
4
2
5
SL - L SL 2 - IN
3
6
1
2
4
7
1 2 3 4
2
3
4
1 2 3
PE
LV
X
4
230
V
50
H
z
M
ai
ns
NO. 2 B2 24V
NO. 5 A2 24V
NO. 6 B1
NO. 4 B3
NO. 3 A3
NO. 1 A1
X
6
WPS 5V
X
5
FLO W +
FAN FEE DBA CK
FAN PW M
FAN GN D
PU MP FE ED BAC K
PU MP P WM
NC
GA
S VA LVE -
GA S VA LVE +
TUR BIN E S IGNA L
TUR BIN E GN D
X
1
TUR BIN E 5 V
CH LI VE
IGNITION LIV E
PE
X
2
DHW LI VE
X
3
PU MP GND
X
9
X
8
OW C +
OW C -
OP EN TH ER M +
OP EN TH ER M -
OP EN TH ER M 5 V
CHIP COM B US TX
CHIP COM B US 24 V
CHIP COM B US GND
CHIP COM B US 5V
CHIP COM B US RX
MA INS LI VE
MA INS NE UTR AL
AU XIL IA RY LI VE
IONIS ATIO N
2 2
FLO W -
DHW +
DHW -
X
7
1
3
2
1
1
2
WPS S IGNA L
WPS GND
FLU E +
FLU E -
RE TURN +
RE TURN -
1
black grey red green blue brown green/yellow orange pink violet yellow
- - - - - - - - - - -
bk gy
r g b br
g/y
o p v y
KEY
1 2 3 4
W
EATHER
COMPEN
SATION
OPEN THERM
DETECTION ELECTRODE
FA
N
RETURN
THERMIST
OR
FLOW
THERMIST
OR
GAS VA
LV
E
SP
ARK
GENERA
TOR
IGNITION
ELECTRODE
W
ATER FLOW
SENSOR
g/y
g/y
g/y
g/y
b
r
bk
bk
bk b
g/y
b
b
br
r
r
bk
bk
w
br
b
br
bk
w
p
bk
y
p
r
bk
bk
bk
bk
bk
v
v
r
y
g
bk
gy
v
r
b
bk
INST
ALLA
TION