Fujitsu Airstage AJYA72GALH Manuel D'installation page 19

Confi gure the setting (DIP switch SET5) of the terminal resistor of the outdoor units as
shown below from conditions 1 to 3.
SET5
Terminal resistor
4
OFF Disable
ON Enable
Figure: Terminal resistor setting
NS1 (Network segment 1)
(Set terminal resistor at outdoor units)
Terminal resistor: on
Refrigerant system1
Master unit
Terminal resistor: off
Refrigerant system2
Master unit
Refrigerant system3
Master unit
NS2 (Network segment 2) NS3 (Network segment 3)
Terminal resister: on
About the setting of terminal resistor
Outdoor unit (Master unit)
:on
:off
Signal amplifi er
Install
Do not install
7. 3. Rotary switch setting
The rotary switch (REF AD) sets the refrigerant circuit address of the outdoor unit.
Confi gure the settings only on the master unit of a refrigerant system.
If multiple refrigerant systems are connected, set the rotary switch (REF AD) as
shown in the table below.
Refrigerant circuit address
0
1
2
3
4
・
・
97
98
99
Setting Setting range
Setting
Refrigerant circuit
0–99 example
address
Rotary Switch (REF AD×1): Factory setting "0"
Rotary Switch (REF AD×10): Factory setting "0"
All manuals and user guides at all-guides.com
Remarks
(Factory setting)
-
NS4 (Network
segment 4)
Rotary Switch Setting
REF AD
×10 ×1
0 0
0 1
0 2
0 3
0 4
・ ・
・ ・
9 7
9 8
9 9
Type of switch
63
REF AD × 10 REF AD × 1
7. 4. Push button setting
Various functions can be set when necessary.
Perform settings after all indoor units have stopped operation.
Table. A: List of Settings
No Setting Item
Standard (40 to 65 m)
Short (less than 40 m)
Pipe length set-
Medium (65 to 90 m)
ting *1
00
Long 1 (90 to 120 m)
Long 2 (120 to 150 m)
Pipe length means the length between master outdoor unit and the nearest
indoor unit.
Normal
21 sec. Delay
Sequential start
shift *1
42 sec. Delay
63 sec. Delay
10
The start-up timing of outdoor unit (compressor) can be set up so that it can
delay several seconds.
This feature is useful when multiple number of outdoor units are installed and
turned on at the same time to limit the starting current.
Normal mode
Save energy mode
Cooling capacity
High power mode 1
shift *1
11
High power mode 2
(Forbidden)
Set this item when necessary.
Normal mode
Save energy mode
Heating capacity
shift *1
12 High power mode 1
High power mode 2
Set this item when necessary.
(Forbidden)
13
(Forbidden)
14
(Forbidden)
15
Switching between Batch stop
batch stop or
Emergency stop
emergency stop *1
This mode selects the pattern of the stop function to be operated by the external
input terminal (CN134).
• Batch stop: The stop of all indoor units connected to same refrigerant system
20
due to input signal coming from CN134.
• Emergency stop: When emergency stop is actuated, the indoor unit does not
accept the operation command from the remote controller. On the other hand,
when the emergency stop is released (no input from CN134), the air condi-
tioner does not return to the original operation until the indoor unit is turned on
by the remote controller.
Snow falling
Valid
protection fan
Invalid
mode *1
22
This mode operates the fans of outdoor units in order to prevent the units from stop-
ping operation when they are covered by snow.
Standard (30 minutes)
Interval setting
Short 1 (5 minutes)
for snow falling
protection fan
Short 2 (10 minutes)
23
mode *1
Short 3 (20 minutes)
When the snow falling protection fan mode is set, the operation interval of the fans
of outdoor units can be selected.
7 segment LED indicator
Factory
First 2
setting
Last 2 digits
digits
0 0
0 1
0 0 0 2
0 3
0 4
0 0
0 1
1 0
0 2
0 3
0 0
0 1
1 1 0 2
0 3
0 4
0 0
0 1
1 2
0 2
0 3
1 3 0 0
1 4 0 0
1 5 0 0
0 0
2 0
0 1
0 0
2 2
0 1
0 0
0 1
2 3
0 2
0 3
En-18