Table of Contents
Advertisement
10
ELECTRICAL CONNECTION
• Use the specified wires for wiring connect the terminals. Securely fix them to prevent
external forces applied to the terminals from affecting the terminals.
Incomplete connection or fixation may cause a fire or other trouble.
• Connect earth wire. (grounding work)
Incomplete grounding cause an electric shock.
Do not connect earth wires to gas pipes, water pipes, lightning conductor or telephone earth wires.
• 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.
• For power supply specifications, follow the Installation Manual of outdoor unit.
• Do not connect 208/230V~60Hz power to the terminal blocks ( A , B ) for control wiring.
Otherwise, the system will fail.
• Do not damage or scratch the conductive core and inner insulator of power and system
interconnection wires while peeling them.
• 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.
• Do not turn on the power of the indoor unit until vacuuming of the refrigerant pipes completes.
System interconnection wires specifications
System interconnection wires*
*Number of wire × wire size
Remote controller wiring
Remote controller wiring, remote controller
inter-unit wiring
Total wire length of remote controller wiring
and remote controller inter-unit wiring
= L + L1 + L2 + ... Ln
Total wire length of remote controller inter-unit wiring = L1 + L2 + ... Ln
The remote controller wire and system interconnection 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 or other factor.
Indoor unit
Remote
L
controller
wiring
controller
25-EN
Indoor unit
L1
Remote
Remote controller inter-unit wiring
WARNING
CAUTION
AWG16 or more
(H07RN-F or 60245 IEC 66)
Wire size: 2 × AWG20 to AWG16
In case of wired type only
2 remote controllers
2 remote controllers including a
wireless remote controller
CAUTION
Indoor unit
L2
‒ 25 ‒
Installation Manual
Up to 229' 7" (70 m)
Up to 1640' 5" (500 m)
Up to 984' 3" (300 m)
Up to 1312' 4" (400 m)
Up to 656' 2" (200 m)
Indoor unit
Ln
(max. 8 units)
Advertisement
Table of Contents
