106-EN
105-EN
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NOTE
1. The CODE NO. [E04] (Indoor / outdoor communication trouble) will appear if line (system) addresses are
mistakenly set.
2. If you set addresses to indoor units in 2 or more refrigerate lines manually using the remote controller and will
control them centrally, set the header outdoor unit of each line as below.
• Set a system address for the header outdoor unit of each line with SW101 and 102 of their interface
P.C. boards.
• Turn on DIP switch 1 of SW100 on the header outdoor unit interface P.C. board of the lowest system address
number.
• After
fi
nishing all the settings above, set the address of the central control devices. (For the setting of the
central control address, refer to the installation manuals of the central control devices.)
Resetting the address
(Resetting to the factory default (address undecided))
Method 1
Clearing each address separately using a wired remote controller.
Set the system address, indoor unit address and group address to “00Un” using a wired remote controller.
(For the setting procedure, refer to the address setting procedures using the wired remote controller on the
previous pages.)
Method 2
Clearing all the indoor unit addresses on a refrigerate line at once from the outdoor unit.
1
Turn off the indoor and outdoor units of the refrigerant line to reset to the factory default and set
outdoor unit of the line as below.
2
Turn on the indoor and outdoor units of the refrigerant line for which you want to initialize the
addresses. About one minute after turning on the power, con
fi
rm that the 7-segment display on
outdoor unit indicates “U.1. - - -” and operate the interface P.C. board on the outdoor unit of the
refrigerant line as follows.
SW01
SW02
SW03
SW04
Clearable addresses
2
1
2
Con
fi
rm that the 7-segment display indicates
“A.d.buS” and turn SW04 ON for more than
fi
ve seconds.
System / indoor unit / group address
2
2
2
Con
fi
rm that the 7-segment display indicates
“A.d.nEt” and turn SW04 ON for more than
fi
ve seconds.
Central control address
3
Con
fi
rm that the 7-segment display indicates “A.d. c.L.” and set SW01, SW02 and SW03 to
1, 1, 1 respectively.
4
After
fi
nished clearing the address successfully, “U.1.Err” and “L08” appear alternatively at 1 second
intervals on the 7-segment display.
5
Set the addresses again after
fi
nishing the clearance.
This product needs setting TU2C-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
fi
rst, 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
fl
ashes “c.c.i n”.
6
The 7-segment display switches between “c.c. i n” and “c.c.
ᅷᅷᅷ
” at 1-second intervals.
The number of connected indoor unit is displayed in [
ᅷᅷᅷ
], so if it is correct, proceed to “ 7 ”.
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
fl
ashes “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
fl
ashes “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.)
When either a TU2C-Link incompatible device or indoor unit incompatible with R32 refrigerant
is connected, “L02” will be displayed for 30 minutes.
If “L02” is displayed, please check whether the connected device is a device compatible with
TU2C-Link or A2L refrigerant.
9
After a while, the 7-segment display switches between “c.c. b p s” and “c.c. 1” 1- second
intervals.
When a TCC-Link compatible device is connected, “L02” is displayed.
If “L02” is displayed, please check whether the connected device is a device compatible with
TU2C-Link.
10
Set the rotary switch on the interface P.C. board of the header outdoor unit back to SW01= [1],
SW02= [1], SW03= [1].
11
Communication setting
