Fujitsu ARYG LHTA 1ph, Руководство по установке

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8.3. Group control system
CAUTION
• When setting rotary switch, do not touch any other parts on the circuit board directly
with your bare hands.
• Be sure to turn off the main power.
A number of indoor units can be operated at the same time using a single remote
controller.
(1) Wiring method (indoor unit to remote controller)
1 2 3
1
R W B
2 3
1 2 3 1 2 3 1 2 3
Indoor unit 0 Indoor unit 1 Indoor unit 2 Indoor unit 3
Bus wire
Remote
controller cable
Remote controller
When ground wire is necessary
(2) Rotary switch setting (indoor unit)
Set the unit number of each indoor unit using the rotary switch on the indoor unit circuit
board.
The rotary switch is normally set to 0.
Indoor unit
Rotary Switch
NOTE
Be sure to set the unit numbers sequentially.
(3) Remote controller setting
1. Turn on all of the indoor units.
* Turn on the indoor unit with the unit number 00 last. (Within 1 minute)
2. Set the refrigerant circuit address. (Assign the same number to all of the indoor units
connected to an outdoor unit.)
Refrigerant circuit
address
Function Number Setting Value
02 00~15
3. Set the “primary” and “secondary” settings. (Set the indoor unit that is connected to
the outdoor unit using a connection cable as the “primary”.)
Function Number Setting Value
Primary
51
00
S econdary 01
4. After completing the function settings, turn off all of the indoor units, and then turn
them back on.
* If error code 21, 22, 24, or 27 is displayed, there may be an incorrect setting.
Perform the remote controller setting again.
NOTE
• When different indoor unit models are connected using the group control system, some
functions may no longer be available.
• If the group control system contains multiple units that are operated simultaneously, con -
nect and set the units as shown below.
• Auto-changeover operates under the same mode with model unit number 00.
• It should not be connected to any other Gr that is not of the same series (A**G only).
00 01 02 03 04 05
00 01 01 02 02 02
00 00 01 00 01 01
Outdoor
unit
1
Outdoor
unit
2
Outdoor
unit
3
Remote
controller

Refrigerant circuit
address

Primary/Secondary
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Indoor
unit
Standard
pair
Simultaneous
twin
Simultaneous
triple
: Connection cable, Power supply cable : Power supply cable
: Remote controller cable : Bus wire
Rotary switch setting
(unit number)
Remote controller
setting
* Make sure that the indoor unit with the unit number 00 is connected to the outdoor unit
using a connection cable.
8.4. Dual remote controllers
• Two separate remote controllers can be used to operate the indoor units.
• The timer and self-diagnosis functions cannot be used on the secondary units.
(1) Wiring method (indoor unit to remote controller)
1 2 3 1 2 3
R W B R W B
1 2 3
Remote controller
Remote controller cable
Indoor unit
Primary unit
Secondary
unit
When ground wire
is necessary
(2) Remote controller DIP switch 1 setting
Set the remote controller DIP switch 1 No. 2 according to the following table.
(Refer to 7.2. Setting the dip switches)
Number of remote
controllers
Primary unit Secondary unit
DIP SW 1 No. 2 DIP SW 1 No. 2
1 (Normal) OFF –
2 (Dual) OFF ON
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