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10
Communication setting
This product needs setting either TU2C-Link or TCC-Link communication after the address setting. Follow the
procedure below for the communication setting .TCC-Link communication has been set as the factory default.
CAUTION
• Be sure to complete the electric wiring before setting the addresses.
• It may takes approximately 1 to 3 minutes to address one refrigerant line.
• Settings on the outdoor unit are required for communication setting.
(Communication setting is not started simply by turning on the power.)
• If outdoor units for which communication setting has already been made are connected, the setting cannot be
made correctly.
In this case, reset the communication setting and perform the setting again.
Communication setting
1
Turn on indoor units first, and then turn on outdoor units.
2
Set the rotary switch of the interface P.C. board on the header outdoor unit to SW01= [2],
SW02= [16] and SW03= [2].
3
The 7-segment display switches between "c.c. b p s" and "c.c. 0" at 1-second intervals.
4
Push and hold SW04 for more than 5 seconds.
5
The 7-segment display flashes "c.c.i n".
6
The 7-segment display switches between "c.c. i n" and "c.c.
The number of connected indoor unit is displayed in [
In parentheses are the measures to be taken when the number of indoor units is different.
(When the number of the connected indoor units differs from the number of indoor units
displayed on the 7-segment display, clear the communication type setting to eliminate the
cause. To clear the communication type setting, push and hold the SW05 for 5 seconds or more.
The 7-segment display flashes "c.c.r S t".
After a while, the 7-segment display switches between "c.c. b p s" and "c.c. 0".
Set the rotary switch back to SW01 to [1], SW02 to [1] and SW03 to [1].)
7
Push and hold SW06 for more than 5 seconds.
8
The 7-segment display flashes "c.c.b p s".
After that, the setting is complete when the 7-segment display changes to "c.c F i n".
(If the 7-segment display changes to "c.c. E r r ", try again.)
9
After a while, the 7-segment display switches between "c.c. b p s" and "c.c. 1" (or "c.c. o ") at
1- second intervals.
10
Set the rotary switch on the interface P.C. board of the header outdoor unit back to SW01= [1],
SW02= [1], SW03= [1].
7
s -
e
g
m
e
t n
d
s i
p
a l
y
[A]
[B]
[c.c.]
[b p s]
(U series and future models)
[c.c.]
[1
]
[A]
[B]
[c.c.]
[b p s]
[c.c.]
[0
]
57-EN
" at 1-second intervals.
], so if it is correct, proceed to " 7 ".
C
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c i
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TU2C-Link
TCC-Link
(Other than U series)
– 29 –
Interface P.C. board on the header outdoor unit
4
Resetting the communication (Return to factory default)
1
Turn off indoor units first, and then turn off outdoor units.
2
Set SW106-2 on the interface P.C. board of the header outdoor unit to ON.
3
Turn on outdoor units first, and then turn on indoor units.
(Turn on the header unit, and then 20 seconds or more later, turn on the follower units and
indoor units. If the follower units cannot be turned on after the header unit has been turned
on, turn on both of them simultaneously. After that, turn on the indoor unit.)
4
The 7-segment display indication " - r S t. - ". Check all the units have turned on more than
approx. 1 minute. Turn off all the indoor and outdoor units.
5
Set SW106-2 on the interface P.C. board of the header outdoor unit to OFF.
7
3,5,6,8,9,10
2
EN
58-EN
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