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Step 12 Connecting the power and
communication cables
Power and communication cable connection
• Before wiring work, you must turn off all power source.
• Connect the power and communication cable among
the units within maximum length to set the voltage
drop under 10%.
• If multiple indoor units are connected to a single circuit
breaker (ELCB, MCCB, ELB), the circuit breaker size must
be sized based on local and national electric codes.
• If a wired controller is required, connect F3/F4 from the
indoor unit to the F3/F4 terminals on the wired controller.
• Tighten the electric wires with a proper tool within the
torque limit to connect and fix them firmly, and then
organize the wires to prevent outside pressure being
exerted on the covers and other parts. Failure to do so
may result in overheating, electric shock, and fire.
M3.5
0.8 to 1.2
M4
1.2 to 1.8
Outdoor Unit
208-230V
ELB
MCCB
Indoor Unit 1
ELB : Essential Installation
Tightening torque
lbf.ft
0.59 to 0.89
0.89 to 1.1
Indoor Unit 2
Indoor Unit 3
• To protect the product from water and possible shock,
you should keep the power and the communication
cables of the indoor and outdoor units in the iron pipe.
• Connect the power cable to the auxiliary circuit
breaker (ELCB, MCCB, ELB).
• Keep distances of 1.97inch (50mm) or more between
power cable and communication cables.
• Power 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 IEC 66 / CENELEC:
H07RN-F)
• Screws on terminal block must not be unscrewed with
the torque less than 0.87 lbf·ft (12 kgf•cm).
• When installing the indoor unit in a computer room,
use the double shielded (tape aluminum / polyester
braid + copper) cable of FROHH2R type.
Wired Remote
Control
Indoor Unit 4
Ceiling, wall-mounted indoor unit.
EEV kit
Indoor Unit 5
Indoor Unit 6
English
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