Fujitsu WGYA050DG6 Design & Technical Manual page 185

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Make the connections in accordance with the diagram(s)3
Do not place the sensor lines and the sector supply lines in parallel in order to avoid causing inadvertent
interference due to voltage points in the sector supply.
Ensure that all the electrical cables are housed in the spaces provided for this purpose inside the space
provided for this purpose.
Single phase model
1 2 3 4 5 6
External component
contact *
WSY model only
3 phase model
Hydraulic unit
1 2 3 4 5 6
External component
contact *
WSY model only
Note:
Ensure that the general electrical power supply has been cut off before starting any repair work.
The rearmament of safety thermostat should be done by a professional.
Hydraulic unit
L N
230 V
Circuit breaker 1 Circuit breaker 3
L N LN
Electrical back-up DHW Electricity
supply 230 V supply 230 V
single phase
1 2 3 4 5 6
230 V
L1 L2 L3
COMMUN
Circuit breaker 1 Circuit breaker 3
L1L2L3
Electrical back-up DHW Electricity
supply 400 V supply 230 V
3-phase
- (CS01 - 69) - - (CS01 - 69) -
2 4
L N
Green / yellow
Brown
Blue
Red
Interconnection
between the outdoor unit
and the hydraulic unit
2 4
L N
L N
Outdoor unit single phase
Circuit breaker 2
L N
Electricity supply
230 V single phase
Outdoor unit 3-phase
1 2 3 L1 L2 L3 N
Green / yellow
Brown
Blue
Red
Interconnection
between the outdoor unit
and the hydraulic unit
Circuit breaker 2
L1 L2 L3 N
Electricity supply
400 V 3-phase
Control system