WIRING
ENGLISH
WARNING
• Do not use tapped wires, extension cords, or starburst connections, as they may cause overheating, electric shock, or fire.
• Do not use locally purchased electrical parts inside the product. (Do not branch the power for the drain pump, etc., from the
terminal block.) Doing so may cause electric shock or fire.
• Be sure to install an earth leakage circuit breaker. (One that can handle higher harmonics.)
(This unit uses an inverter. Therefore, an earth leakage circuit breaker capable of handling higher harmonics must be used in
order to prevent the earth leakage circuit breaker malfunctioning.)
• Use an all-pole disconnection type circuit breaker with at least 3mm (1/8 inch) between the contact point gaps.
• When carrying out wiring, take care not to pull at the conduit.
• Do not connect the power wire to the indoor unit. Doing so may cause electric shock or fire.
• Do not turn on the circuit breaker until all work is completed.
1) Strip the insulation from the wire (20mm).
2) Connect the inter-unit wires between the indoor and outdoor units so that the terminal numbers match. Tighten the terminal
screws securely. It is recommended that a flathead screwdriver be used to tighten the screws.
The screws are packed with the terminal block.
Firmly fix the wires with
the terminal screws.
Inter-unit wire 4-core 60245
IEC 57 H07RN-F
1
1 2 3
L N
Indoor
unit
2
3
Firmly fix the wires
Power supply wire
3-core 60245 IEC 57
H07RN-F
Circuit Earth leakage Power supply
breaker circuit breaker 50Hz 220-240V
screws.
Power supply
terminal block
with the terminal
Earth
RXC20/25/35
*
16A
RXC50/60/71
*
16A
1
2
3
L
N
Shape wires so
that the service
lid and stop valve
cover fit securely.
SPECIAL PRECAUTIONS WHEN DEALING WITH R32 UNIT
Models
R32 charge, kg Minimum floor area, Xm
2
R32 charge, kg for max Minimum floor area, Xm
2
(based
for 7.5m piping
(based on 7.5m piping) allowable pipe length
*
on max allowable pipe length
*
)
ATXC20D - ARXC20D
ATXC25D - ARXC25D
ATXC35D - ARXC35D
ATXC50D - ARXC50D
ATXC60D - ARXC60D
ATXC71D - ARXC71D
0.55
0.55
0.75
1.00
1.10
1.15
0.29
0.29
0.54
0.95
1.15
1.26
0.76
0.76
0.96
1.38
1.48
1.53
0.55
0.55
0.88
1.82
2.10
2.24
*
Max. Allowable Length (L),m for:-
ATXC20/25/35D - ARXC20/25/35D : 20
ATXC50/60/71D - ARXC50/60/71D : 30
• Installation of pipe work shall be kept to a minimum and pipe work shall be protected from physical damage and shall not be
installed in an unventilated space.
• Reusable mechanical connectors and flare joints shall be accessible for maintenance purposes.
12
