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3 Technical specifications
3.4
Electrical diagram
85754935
X12
X28
PUMP SPEED
7696851
EHC-05
PUMP
X27
EXCHANGER
X15
X26
F
U
S
E
X1
X24
X2
7705849
7705849
7680294
PUMP
POWER SUPPLY
7673746
DHW REVERSING VALVE
ON/OFF
230V - 50Hz
7680120
CN20
SENSOR TARGET
7750947
CN21
PUMP
SW6
POWER SUPPLY
1
2
CN2A
CNX2 CNX3 CNX4
10
11
7
TB142
RED
BLACK
BLUE
PUMP CH
Hydraulic
B a c k up
Tab.16
Electrical diagram legend
230V – 50Hz
BACKUP 1
BACKUP 2
BL1 Multifonction
16
MIT-M
WATER
SENSORS
H M I
768 0047
X9
X10
X18
X21
7680501
X8
X7
X6
X17
X16
X13
X25
7680005
X4
X5
X
1
9
X23
X30
X22
BACKUP 1
BACKUP 2
S2/S3
7680155
EH812
PC
SERVICE
PORT
7680441
1
2
3
4
SW1
5
6
7
8
1
2
3
SW2
4
5
6
PAC-IF020-E
7
8
1
2
3
4
SW3
5
6
7
8
TB6
S2 S3
L N
7680130
BLUE
BROWN
BROWN
YELLOW
/GREEN
BLUE
X4
EHC-05
Pump
Boiler
X5
EHC-05
ON/OFF
FUSE
X1
X12
X13
X15
7621783
EH829
LOW NOISE
OUTDOOR
UNIT
E le c tr ic
X6
X5
B a c k up
FUSE
CB04
EH726
7680479
DISCONNECTOR
Main power supply for the indoor unit
Hydraulic version: Hydraulic back-up pump
Electrical version: Electrical back-up - stage 1
Hydraulic version: Hydraulic back-up ON/OFF contact
Electrical version: Electrical back-up - stage 2
BL1 multifunction input
X2
X3
SCB-10
X4
X14
TA
X17
+ -
OUTSIDE T° SENSOR
EHC-05
1
2 kW
230V~
4 kW
400V 3N~
8 kW
400V 3N~
7756241 - v02 - 19062020
MW-1001675-2
Harness
N° 7673502
X4
X5
EHC-05
2
2-6 kW
230V~
4-8 kW
400V 3N~
4-12 kW
400V 3N~
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