6
OPERATION & INSTALLATION MANUAL FOR PC-LH3A
9
SIMULTANEOUS OPERATION OF MULTIPLE INDOOR
UNITS
The multiple indoor units (Max. 16 units) can be
started and stopped simultaneously by one controller.
Perform this operation only in case that multiple
indoor units are installed in a room as shown in the
figure.
CAUTION:
Do not perform this operation in case that the
multiple indoor units are installed in different
rooms separately. It may happen that some
indoor units remain unchanged
Procedures
Ô
ATTENTION:
Turn OFF all the power source before the following procedures such as wiring, setting the
rotary switch, etc.
1) Installation of Air Panel for Wireless Control
In case of simultaneous operation of plural (up to 16) units by the wireless remote control switch,
apply the air panel for wireless control only to the unit to be operated, and apply the standard
panels (for wired control) to other units. In case of applying plural air panels for wireless control,
up to 2 air panels for wireless control can be used.
In case of applying two (2) air panels for wireless control, the setting of main and sub receiver part
is required. Refer to the receiver kit installation manual.
2) Perform wiring between indoor units by referring to the receiver installation manual.
3) Fix the connecting control cable (do not use the white cord of the 3-core cable) between indoor
units at certain points with bands not to run along the power supply cable inside of the indoor unit.
The same wiring is required outside of the indoor unit; keep a distance more than 30cm between
the control cable and the power supply cable, or ground one end of a conduit tube after inserting
the control cable in the metal conduit tube.
Indoor Unit
Control Cable
between Indoor
Units
Controller
Wireless
Controller
Wireless
Panel
Standard
Panel
Standard
Panel
Standard Panel or
Wireless Panel
Should be Standard Panel
