16
English
NOTE
1.
All transmission wiring except for the remote controller wires is polarized and must match the terminal symbol.
2.
In case of group control, perform the remote controller wiring to the master unit when connecting to the
simultaneous operation system. (wiring to the slave unit is unnecessary)
3.
For group control remote controller, choose the remote controller that suits the indoor unit which has the
most functions (as attached swing flap)
4.
When controlling the simultaneous operation system with 2 remote controllers, connect it to the master
unit. (wiring to the slave unit is unnecessary)
9. ELECTRIC WIRING WORK
•
All field supplied parts and materials and electric works must conform to local codes.
•
Use copper wire only.
•
For electric wiring work, refer to also “8. WIRING EXAMPLE” on page 15 attached to the unit body.
•
For remote controller wiring details, refer to the installation manual attached to the remote controller.
•
All wiring must be performed by an authorized electrician.
•
A circuit breaker capable of shutting down power supply to the entire system must be installed.
•
Refer to the installation manual attached to the outdoor unit for the size of power supply electric wire con-
nected to the outdoor unit, the capacity of the circuit breaker and switch, and wiring instructions.
•
Be sure to ground the air conditioner.
•
Do not connect the ground wire to gas pipes, water pipes, lightning rods, or telephone ground wires.
•
Gas pipes: might cause explosions or fire if gas leaks.
•
Water pipes: no grounding effect if hard vinyl piping is used.
•
Telephone ground wires or lightning rods: might cause abnormally high electric potential in the ground
during lighting storms.
• Specifications for field wire
Table 3
NOTE
1.
Shows only in case of protected pipes. Use H07RN-F in case of no protection. (Sheath thickness: 1mm or more)
2.
Use double insulated wire for remote controller (Sheath thickness: 1mm or more) or run wires through a
wall or conduit so that the user cannot come in contact with them.
3.
This length shall be the total extended length in the system of the group control.
CAUTION
•
Even if the top or rear penetration lid is removed, pull the remote controller cord and the wiring between
units inside the unit using conduits for each, so that the wiring does not come into contact with the opening
section of the metal casing.
•
Pass conduits through the wall and secure along with the refrigerant piping in order to prevent external
pressure being applied to the remote controller cord and wiring between units.
•
Prevent dust from entering into the unit by filling the gap between the conduits and the penetration lid (top
or rear) with corking or putty.
•
Arrange the wires and fix a lid firmly so that the lid does not float during wiring work.
•
Do not clamp remote controller cord together with wiring between units together. Doing so may cause mal-
function.
•
Remote controller cord and wiring between units should be located at least 50 mm from other electric wires.
Not following this guideline may result in malfunction due to electrical noise.
Wire
Size (mm
2
)
Length
Wiring between units
H05VV - U4G
(NOTE 1, 3)
2.5
-
Remote controller cord
Vinyl cord with sheath or cable
(2 wires) (NOTE 2)
0.75 - 1.25
Max. 500 m
(NOTE 3)
01_EN_3PN06588-4M.fm Page 16 Monday, December 19, 2011 7:04 PM
