ELECTRICAL CONNECTIONS
The terminal box is located behind the lower front panel.
The electrical connections are made on the terminal strip situated in the box according to the instructions "ELECTRICAL
CONNECTIONS".
CAUTION
In the case of a casing heater it must be started according to the compressor is located: 2 hours before starting of
the unit for a temperature of 10°C and 4 hours before starting for a temperature of 0°C.
IMPORTANT
Observe the correct order for the electrical connections, including the mains supply (phase, neutral,
earth, etc...), in accordance with the markings on the terminal strip.
The outdoor units are supplied wired for a three-phase 400vAC 3-phase + Earth power supply voltage.
power supply
3 ~ 400v + Earth
(without neutral)
The shunt SHA (1) must be
removed.
L1
N
X
L1 L2 L2 L3 L3
power supply
400vAC 3-phase + Earth
(with neutral)
SHA : shunt supplied factory mounted.
L1
N
X
L1 L2 L2 L3 L3
power supply
230vAC 3-phase + Earth
L1 L1 L2 L2 L3 L3
Transformer (not supplied)
-For power supply 400vAC - 3-phase + Earth, without neutral
TRANSFORMER
air cooled models
water cooled models
Nominal input power single phase
transformer 400v - 230v
1000 vA
630 vA
3 ~ 400v - 50Hz +
1 ~ 230v - 50Hz
+
3N ~ 400v - 50Hz +
3 ~ 230 v - 50 Hz +
CHOISE OF INDOOR THE UNIT FAN SPEED
23
24
22
7
RD
VT
BK
M3*
1~
Factory connection
Fan speed
VR
(reduced)
VN
(normal)
GV
(high)
motor wire
Red
(
RD
)
violet
(
VT
)
Black
(
BK
)
Connection
22-7
23-7
24-7
14
Summary of Contents for X AO
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