88
Basic segment display
Step Display content Display
At initial power input Checking segment display
SEG 1 SEG 2 SEG 3 SEG 4
“8” “8” “8” “8”
While setting communication
between indoor and outdoor unit
(Addressing)
Number of connected indoor units
SEG 1 SEG 2 SEG 3 SEG 4
“A” “d ”
Number of communicated
units
❋ Refer to "View Mode"
for communication
address
After communication setting
(usual occasion)
Transmit/Reception address
SEG 1 SEG 2 SEG 3 SEG 4
I/U: “A”
MCU: “C”
I/U: “0”
MCU: “1”
Reception address (in
decimal number)
❇ I/U : Indoor unit
Setting outdoor unit option switch and key function
Setting outdoor unit option switches : A TYPE
❇ If you install HR products, you must match the address between the MCU and the indoor unit.
Switch Setting Function Remarks
SW51 /
SW52
Setting total number of installed indoor unit
SW51: Tens digit, SW52: Units digit
Setting can be done from the main outdoor unit
only (sub unit: setting is unnecessary)
Ex) When 12 indoor units are installed SW51:1,
SW52:2
SW53
K6
On
Enable maximum capacity restriction for cooling
operation
Restrict excessive capacity increase when
operating indoor units with small capacity
O
Disable maximum capacity restriction for cooling
operation
-
K7 K8 Selecting outdoor unit address
On On Outdoor unit address: No. 1 Main unit
On O Outdoor unit address: No. 2 Sub unit 1
O On Outdoor unit address: No. 3 Sub unit 2
O O Outdoor unit address: No. 4 Sub unit 3
SW57 Setting total number of connected MCU
Setting can be done from Main unit only.
Ex) When 3 MCUs are installed ´ SW57:3, When
10 MCUs are installed ´ SW57:A