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53
English
INSTALLATION PARTS
NOTE
• Supply cords of parts of appliances for outdoor use shall not be lighter than polychloroprene sheathed
flexible cord. (Code designation IEC:60245 IEC 57 / CENELEC: H05RN-F or IEC:60245 IEC66 / CENELEC
H07RN-F)
• This equipment complies with IEC 61000-3-12 provided that the short-circuit power Ssc is greater than
or equal to Ssc (*2) at the interface point between the user's supply and the public system. It is the
responsibility of the installer or user of the equipment to ensure, by consultation with the distribution
network operator if necessary, that the equipment is connected only to a supply with a short-circuit
power Ssc greater than or equal to Ssc(*2). [Ssc (*2)]
MODEL Ssc[MVA]
AC078B*PD*C 3.57
AC096B*PD*C 5.08
Power wiring diagram
Connect the power cable of the outdoor unit after checking that R-S-T-N (3-phase 4 wires) is properly
connected. If the power of 380 V is supplied to the N phase, PCB and other electrical parts will be damaged.
NOTE
• Before supplying power to the outdoor unit, be
sure to check the voltage of the distribution board.
The voltage between phases for the 3 phase 4
wires 380 V is as follows:
R phase and S phase: 380 V
R phase and T phase: 380 V
S phase and T phase: 380 V
R phase and N phase: 220 V
S phase and N phase: 220 V
T phase and N phase: 220 V
• Communication cables between the indoor and
outdoor units do not have polarity.
3 phase 4 wires
380 V
Communication cabale
(outdoor-to-indoor unit)
Outdoor
Unit
Single phase
220 V
Indoor
Unit
Earth
Earth
Or
Or
ELCB
ELCB
MCCB+
ELB
MCCB+
ELB
CAUTION
• Arrange the cables with a cable tie. ELCB and ELB must be installed because there is risk of electric
shock or fire.
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