Electrical Connections On The Hydraulic Indoor Unit - Fujitsu Super High Power Series Design & Technical Manual

4-2. Electrical connections on the hydraulic indoor unit

CAUTION
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.
• Open the front cover.
• Open the power control box.
• Make the connections in accordance with the diagrams.
– Single phase model
Hydraulic indoor unit
N
L
Power supply for
Electrical backup
single phase 230 V
– 3-phase model
Hydraulic indoor unit
1 2 3 4 5 6
L1 L2 L3
COMMUN
L1 L2 L3
Power supply for
Electrical backup 3
phase 400 V
4-2. Electrical connections on the hydraulic indoor unit
1 2 3 4 5 6
towards external
component contact
between outdoor unit
1 2 3 4 5 6
towards external
component contact*
- (03-66) -
brown
blue
red
green/yellow
Interconnection
and hydraulic unit
brown
blue
red
green/yellow
Interconnection
between outdoor unit
and hydraulic unit
Single phase outdoor unit
L N 1 2 3
L N
Electricity supply
single phase 230 V
3 phase outdoor unit
L1 L2 L3 N 1 2 3
L1 L2 L3 N
Electricity supply
3 phase 400 V
4. Electrical connections