Rotary Switch Setting; Push Button Setting - Fujitsu AJ*A72LALH Series Installation Manual

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.
Rotary
Switch Setting
Refrigerant
circuit
REF AD
address
×10 ×1
0 0 0
1 0 1
2 0 2
3 0 3
4 0 4
5 0 5
97 9 7
98 9 8
99 9 9
7. 4.

Push button setting

Various functions can be set. Set when necessary.
Perform settings after all indoor units have stopped operation.
Refer to Table A for the items that can be set.
Table. A: List of Settings
No Setting Item
Standard pipe (40 to 65m)
Short pipe (less than 40m)
Pipe length set-
0 Long pipe 1 (65 to 90m)
ting
Long pipe 2 (90 to 120m)
Long pipe 3 (120 to 150m)
No shift
Shift 1 (21 seconds)
Compressor
10 sequential start Shift 2 (42 seconds)
shift
Shift 3 (63 seconds)
Standard
Cooling capacity Save energy mode
11
shift
High power mode 1
High power mode 2
Standard
Save energy mode
Heating capacity
12
shift
High power mode 1
High power mode 2
13 (Setting disabled)
Forced stop
Emergency stop
Emergency stop/
20 Forced stop
toggle
Setting
Setting
range
Refrigerant Setting
circuit 0–99 example
address 63
Rotary Switch (REF AD×1): Factory setting "0"
Rotary Switch (REF AD×10): Factory setting "0"
7 segment LED
display
Factory
First 2 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 0
0 1
1 2
0 2
0 3
1 3 0 0
0 0
2 0
0 1
Type of switch
REF AD × 10 REF AD × 1
default
This item allows you to adjust the cooling cycle loss due to the length of the
O
connected pipe.
Set according to the length of the connected pipe.
Set only the master unit for this item.
*
Pipe length means the length between master outdoor unit and the nearest
indoor unit.
O
This item allows you to delay the start timing of the outdoor units for every
refrigerant system when multiple refrigerant systems have been confi gured.
You can also limit the start current when multiple refrigerant systems are
activated at the same time.
Set only the master unit for this item.
O
Set this item when necessary.
O
Set this item when necessary.
(Factory default)
O This item allows you to stop the outdoor/indoor units of the same refrigerant
system when a stop signal is received at the external input terminal "CN134".
• Forced stop: Operation can be resumed using a remote control.
• Emergency stop: Once emergency stop is cancelled, you can start opera-
tion with a remote control.
Set only the master unit for this item.
Content
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