Sanyo SPW-C366VH - Page 378

2
2-14
1
2
U2
U1
L
N
U2
U1
L
N
1
2
U2
U1
L
N
1
2
U2
U1
L
N
1
2
U2
U1
L
N
1
2NL
1
2NL
2-16-2. Basic wiring diagram 2
Group control (when a central control device is not used)
• A maximum of 8 indoor units can be connected to a single remote controller.
Example: In a refrigerant system where 2 or 3 indoor units are connected to 1 outdoor unit, set the new system
address (refrigerant system address) before turning ON the remote power switch.
(Refer to 2-16-3.) (Set using the system address black rotary switch on the outdoor unit control PCB.)
(for single-phase outdoor unit)
1. Wall-mounted units do not include a terminal plate for connecting a remote controller.
2. For group control of wall-mounted units, connect the remote controller communication
wiring to the remote controller connector (2P) on the main unit, as shown in the diagram.
(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 1 and 2 on the remote controller wiring terminal plates of the No. 1 indoor
unit and the other indoor units (as shown in Basic wiring diagram 2).
(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.
Connect the wiring in the same way from the other outdoor units to U1 and U2 on the indoor units terminal
plates (different refrigerant system).
(4) Perform automatic address setting from the outdoor unit. (For the automatic address setting procedure, refer to
2-16-4.)
NOTE
* 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)
System address rotary
switch (Change the
setting to “1”.)
System address rotary switch
(Change the setting to “2”.)
Indoor power crossover
wiring – up to 16 units
(no-heater units only)
Remote controller communication wiring
for group control ( eld-supply wiring)
(Thickness 0.5 – 2.0 mm
2
total length 200 m or less)
Up to 8 units can be
set for group control
Connection to lead wires
(White / Black)
Outdoor unit
Ground
Leakage breaker
Wall-
mounted
type
Indoor
unit No.
1
Inter-unit control wiring
Outdoor unit
Leakage breaker
Leakage breaker
Leakage breaker
Ground
Ground
Ground Ground Ground Ground
Indoor
unit No.
2
Indoor
unit No.
3
Indoor
unit No.
4
Indoor
unit No.
5
Fig. 2-12
SM830160-03ClassicPAC-iA4.ind1414SM830160-03ClassicPAC-iA4.ind1414 2010/02/1610:28:112010/02/1610:28:11