Sanyo SPW-U255H - Page 377

2
2-13
L
N
L
N
1
2
1
2
1
2
2
1
1
2
0
L
N
L
N
2
1
N
L
LN 12
2P
2-16. System Control
System control refers to the link wiring connection for control of simultaneous operation multi systems, group
control, and main/sub remote controller control.
2-16-1. Basic wiring diagram 1
Single type and simultaneous operation multi system
• Simultaneous operation multi system
Up to 4 (Double-Twin) indoor units can be connected to 1 outdoor unit for operation.
(However, coordinate the outdoor unit capacity and the total capacity of the indoor units.)
(It is not possible to connect individual remote controllers for independent operation.)
• Be careful to avoid miswiring when connecting the wires.
(Miswiring will damage the units.)
(for single-phase outdoor unit)
Example: Using a wireless remote controller with a
simultaneous operation multi system
(Wiring procedure)
(1) Set the No. 1 wall-mounted indoor unit so that it can be operated by the wireless remote controller. (This is set
at the time of shipment.)
On the indoor unit control PCBs, set the No. 2 and following wall-mounted units to the sub remote controller.
(Refer to 2-16-5.)
(2) Connect the communication wiring to the lead wires (white/black) that extend out from the remote controller
connectors of the No. 1 indoor unit and other wall-mounted indoor units (as shown in Basic wiring diagram 1).
Connect the communication wiring to 1 and 2 on the remote controller wiring terminal plate for units (4-way,
ceiling-mounted, etc.) other than the No. 1 indoor unit.
(3) Connect the inter-unit control wiring to 1 and 2 on the No. 1 indoor unit terminal plate, and to 1 and 2 on the
outdoor unit terminal plate.
Also connect the inter-unit control wiring between the indoor units.
(4) When the indoor and outdoor unit power is turned ON, automatic address setting is performed (when there is
only 1 outdoor unit or when the system address is “0”).
NOTE
* If the system address is “0”, automatic address setting is performed when the power is turned ON (in the case
shown in Basic wiring diagram 1).This requires approximately 4 – 5 minutes (when the outdoor / indoor unit ratio
is 1:1 as shown in Basic wiring diagram 1).
During automatic address setting, LED 1 and 2 on the outdoor unit control PCB blink alternately.
These LED turn OFF when automatic address setting is completed.
* When using wall-mounted units in a simultaneous operation
multi system, connect the remote controller communication
wiring to the remote controller connector (2P) on the main
unit, as shown in the diagram.
(Using a wired remote controller with a
single-type system)
1. Wall-mounted units do not include a
terminal plate for connecting a remote
controller.
2. To connect the remote controller, a
remote controller cord is required.
For group control (wiring locally supplied)
Remote controller communication wiring
(Dia. 0.5 to 2 mm
2
)
Total length of wiring 200 m or less
Fig. 2-11
Connection to lead wire
(White / Black)
Wireless remote
controller
System address (S2)
(Setting at shipment: "0")
Outdoor unit
Ground
Leakage breaker
Wall-
mounted
type
Indoor
unit No. 1
Leakage breaker
Inter-unit control wiring
Ground
Ground
Ground
(white)
Wall-
mounted
type
Indoor
unit No. 2
Wall-
mounted
type
Indoor
unit No. 3
Ground
Leakage breaker
Indoor
unit
Leakage breaker
Ground
Out-
door
unit
4P
Terminal
plate
Wired remote
controller
white black
(Field
supply)
SM830160-03ClassicPAC-iA4.ind1313SM830160-03ClassicPAC-iA4.ind1313 2010/02/1610:28:112010/02/1610:28:11