Branch Box Installation Manual

13
8. Electrical work
8.3. Switch setting
SW4 SW5SW11SW12
Address setting
ONES DIGIT
Address setting
TENS DIGIT
Model selection
Indoor unit
setting
SW1
Indoor unit
connections
Dip switch setting (Effective only before turning on the power)
123 456
ON
OFF
SW1
123 456
ON
OFF
SW4
78910
Switch OFF ON
Indoor Unit A SW1-1 Not connected Connected
Indoor Unit B SW1-2 Not connected Connected
Indoor Unit C SW1-3 Not connected Connected
Indoor Unit D SW1-4 Not connected Connected
Indoor Unit E SW1-5 Not connected Connected
Not used SW1-6
When connecting the Cylinder or the Hydro box unit to the unit in the house, connect
the air to air system indoor unit connected in the bedrooms to A to C ports and make
the following switch settings below.
Also, after referring to the outdoor unit installation manual, add refrigerant.
Port A to C are available for setting for up to a maximum of 3 rooms.
SW5
Port setting
456
Off Off Off Not specifi ed
On Off Off Port A
Off On Off Port B
On On Off Port A+B
Off Off On Port C
On Off On Port A+C
Off On On Port B+C
On On On Port A+B+C
Address switch (Effective only before turning on the power)
Actual indoor unit address setting varies in different systems. Refer to the installation manual for the outdoor unit for details on how to make the address setting.
Each address is set with a combination of the settings for the tens digit and ones digit.
(Example)
• When setting the address to “3”, set the ones digit to 3, and the tens digit to 0.
• When setting the address to “25”, set the ones digit to 5, and the tens digit to 2.
(Example)
• When setting the address of the branch BOX to “3”, an address is assigned to each indoor unit starting with Unit A as shown below no matter if each indoor unit is con-
nected. (SW1-1~5 ON)
Indoor Unit A Address 3
Indoor Unit B Address 4
Indoor Unit C Address 5
Indoor Unit D Address 6
Indoor Unit E Address 7
• When the address is set to “25” and also 3 indoor units (Unit A, Unit C, and Unit E) are connected. (SW1-1, 1-3, 1-5 ON)
Indoor Unit A Address 25
Indoor Unit C Address 26
Indoor Unit E Address 27
Ports available
for setting
Port A
Port B
Port C
Port D
Port E
Ports available
for setting
Port A
Port B
Port C
Port D
Port E
Switch OFF ON
SW4-5 Cooling & Heating system Cooling only system
(Example)
When the indoor units are
connected to Indoor unit
A and C, turn SW1-1 and
SW1-3 to on.
•
(Example)
When the indoor unit is
cooling only system, turn
SW4-5 to on.
•