43
SMMS High-Wall Type
Installation Manual
Toshiba
10
ELECTRIC WORK
WARNING
1. Using the specified wires, ensure to
connect the wires, and fix wires securely so
that the external tension to the wires do not
affect the connecting part of the terminals.
Incomplete connection or fixation may cause a
fire, etc.
2. Be sure to connect earth wire. (grounding
work)
Incomplete grounding cause an electric shock.
Do not connect ground wires to gas pipes,
water pipes, lightning rods or ground wires for
telephone wires.
3. Appliance shall be installed in accordance
with national wiring regulations.
Capacity shortage of power circuit or
incomplete installation may cause an electric
shock or a fire.
CAUTION
• If incorrect/incomplete wiring is carried out, it
will cause an electrical fire or smoke.
• Be sure to install an earth leakage breaker that
is not tripped by shock waves.
If an earth leakage breaker is not installed, an
electric shock may be caused.
• Be sure to use the cord clamps attached to the
product.
• Do not damage or scratch the conductive core
and inner insulator of power and inter-
connecting wires when peeling them.
• Use the power cord and Inter-connecting wire
of specified thickness, type, and protective
devices required.
• Never connect 220–240V power to the terminal
blocks (
,
,
,
, etc.) for control
wiring.
(Otherwise, the system will fail.)
REQUIREMENT
• For power supply wiring, strictly conform to the
Local Regulation in each country.
• For wiring of power supply of the outdoor units,
follow the Installation Manual of each outdoor
unit.
• Perform the electric wiring so that it does not
come to contact with the high-temperature part
of the pipe.
The coating may melt resulting in an accident.
• After connecting wires to the terminal blocks,
provide a trap and fix wires with the cord clamp.
• Run the refrigerant piping line and control wiring
line in the same line.
• Do not turn on the power of the indoor unit until
vacuuming of the refrigerant pipes completes.
A
B
+1111050501_01EN_SMMS_HighWall_IM_B5.book Page 15 Wednesday, November 12, 2008 2:45 PM
SMMS High-Wall Type
Installation Manual
Toshiba
Power supply wire and communication wires specifications
Power supply wire and communication wires are procured locally.
For the power supply specifications, follow the table below. Power supply wiring and communication wiring
are to be procured locally.
For specifications of the power capacity of the outdoor unit and the power supply wires, refer to the
Installation Manual supplied with the outdoor unit.
Indoor unit power supply
• Prepare an exclusive power supply for the indoor unit independently of the outdoor unit.
• Arrange the power supplies to the indoor and outdoor units, so that a common earth leakage breaker and
main switch can be used.
• Power supply wire specification: Cable 3-core 2.5mm²,
in conformity with Design H07 RN-F or 60245
IEC 57
.
▼
Power supply
Control wiring, Central controller wiring
• Use a 2 core non polarity wire.
• To prevent any possible noise issues, use a shielded 2 core wire.
• The total stated length of communication wiring is determined by the interconnecting length of indoor to
outdoor wire plus the length of the central control communication wire.
▼
Communication line
Wired remote controller wiring
This wiring is not required when using the supplied wireless remote controller.
• For wiring remote controllers a 2 core non polarity wire must be used.
CAUTION
The remote controller wire (Communication line) and AC220–240V wires cannot be parallel to contact
each other and cannot be stored in the same conduits. If doing so, a trouble may be caused on the control
system due to noise, etc.
Power supply
220–240V ~ 50Hz
220V ~ 60Hz
Power supply switch/Earth leakage breaker or power supply wiring/fuse rating for indoor units should be selected by
the accumulated total current values of the indoor units.
Power supply wiring
Below 50m 2.5 mm²
Control wiring between indoor units, and outdoor
unit (2-core shield wire)
Wire size
(Up to 1000m) 1.25 mm²
(Up to 2000m) 2.0 mm²
Central control line wiring (2-core shield wire)
Wire size
(Up to 1000m) 1.25 mm²
(Up to 2000m) 2.0 mm²
Wired remote controller wiring, remote controller inter-unit wiring Wire size: 0.5mm² to 2.0mm²
Total wire length of wired remote controller wiring and remote
controller inter-unit wiring = L + L1 + L2 + … Ln
In case of wired type only
Up to 500m
In case of wireless type included
Up to 400m
Total wire length of wired remote controller inter-unit wiring = L1 + L2 + … Ln
Up to 200m
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