Sanyo Big PACi 18 Series Technical Data & Service Manual page 152

(Wiring procedure)
(1) Connect the remote controller to the indoor unit re-
mote controller wiring terminal plate (1, 2). (Remote
controller wiring)
(2) Connect the indoor units (U1, U2) and the outdoor
units (1, 2). Connect the other outdoor units and
indoor units (with different refrigerant systems) in
the same way. (Inter-unit control wiring)
Connect the remote controller crossover wiring to
the indoor units (U1, U2) for each refrigerant system.
(Interunit control wiring)
(3) Connect the remote controller crossover wiring (2
wires) from the remote controller wiring terminal
plate (1, 2) on the indoor unit (unit where the remote
controller is connected) to the remote controller
terminal plates (1, 2) on the other indoor units.
(Remote controller crossover wiring)
(4) Turn ON both the indoor and outdoor unit power and
perform automatic address setting from the remote
controller. (For the automatic address setting
procedure, refer to 2-8-4.)
N O TE
* Models with auxiliary heaters cannot be used for
crossover wiring of the indoor unit power wires.
(Use a pull box to divide the wiring.)
Be sure to use the indoor unit temperature sensor
(body sensor) when using this control. (Status at
shipment.)
2-7
2