Panasonic R410A service manual Test run, Basic wiring diagram, 6a Wiring procedure, 6b

6. Test run

Basic wiring diagram 2

Group control (when a central control device is not used)

Simultaneous-operation multi system

A maximum of 8 indoor units can be connected to 1 remote controller.

Set the system address (refrigerant tubing system address) before turning on the remote power switch. (Refer to “Setting the system addresses” on next page.)

(Set using the system address rotary switch on the outdoor unit control PCB.)

1

System address rotary switch (Set to “0” at the time of shipment.)

2

System address rotary switch

(Set to “0” at the time of shipment.)

Power supply Single-phase 230 / 208 V

Outdoor unit
L1 L2	1	2	G U1 U2
powerline	60V,Hz
Ground
Inter-unit	230 / 208
1
2
Indoor
unit
U1
U2
RC

Power supply Single-phase 230 / 208 V

Outdoor unit
L1 L2	1	2	G U1 U2
powerline	60V,Hz
Ground
Inter-unit	230 / 208
1
2
Indoor
unit
U1
U2
RC

Remote controller wiring

WHT	BLK	(Field supply)
1 2
(Optional)

Wired remote controller

Fig. 6-6a

(Wiring procedure)

Remote controller crossover wiring for group control

(1)Connect the remote controller to the indoor unit remote controller wiring.

Use the remote controller connection wire coming from the indoor unit, and field-supply wire and a wire joint to complete the connection as shown in Fig. 6-6b. The remote controller connection wire coming from the indoor unit includes a connector, therefore cut off the connector and use the wire joint to connect the wire from the remote controller.

(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. Connect the inter-unit control wiring to the indoor units (U1, U2) for each refrigerant system.

(Inter-unit control wiring)

Indoor	Indoor
unit 1	unit 2
RC	RC

WHT BLK

12

(Optional)

Wired remote controller

Fig. 6-6b

Indoor

unit 3

RC

6

6-7