Toshiba RAV-SM562KRT-E Installation Manual page 20

10
INDOOR UNIT OPERATION WHEN
CONNECTED TO MULTIPLE UNITS
Twin combination
Two indoor units can be operated with single outdoor unit.
(However, each indoor unit cannot be operated individually).
• Use RBC-TWP30E and 50E of branch pipe kit (optional) for twin combination.
• For piping connection, refer to this manual and the installation manual of outdoor branch pipe kit.
Wiring diagram for twin combination
Wiring of each indoor unit should be H07RN-F or 245IEC66 (1.5 mm or more).
Wiring of remote controller should be Twist wire (2-core with non-polarity: 0.5 mm
Address can be set automatically. (Address setting will be executed for 5 minutes after the power is turned on.)
There is no need to change the address setting. (The main unit is indoor unit that receives START/STOP signal
from the wireless remote control.)
A B
1
1
L
Make sure to check the wiring before turning on the power.
When connecting by twin combination, make sure that no wiring is made to No.3 terminal block of sub unit.
(Air conditioner may not work after the power is turned on.)
Group combination
When executing group control on multiple unit system
Group control of up to 8 units is available with single remote controller.
Use wired remote controller for group control.
• For wiring and wiring procedures for individual system (using the same refrigerant), refer to the installation
manual of each combination.
• Wiring between systems should be done by the following procedures:
Connect the remote-controller terminal plate (A, B) on the indoor unit, to which the remote controller is
connected, to the terminal plate (A, B) on each of other indoor units by linking them with each other with remote
controller wiring.
• Automatic address setting commences when the power is turned on. After 3 minutes, "SETTIN" will be indicated
on the display panel to show that the address is being set.
EN
Remote Controller
Main Indoor Unit
3
2
3
2
Outdoor Unit
N
Power supply
A B
Sub Indoor Unit
3
1 2
CAUTION
17
2 2
- 2.0 mm .
Indoor unit connecting line
Control line
Other connecting line