108-EN
107-EN
– 54 –
EN
7-segment display
Communication type
[A]
[c.c.]
[c.c.]
[B]
[b p s]
[1 ]
TU2C-Link
(U series, advance series
and future models)
Interface P.C. board on the header outdoor unit
3,5,6,8,9,10
ĸ
2
ĸ
7
ĸ
4
ĺ
Resetting the communication (Return to factory default)
1
Turn off indoor units
fi
rst, 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
fi
rst, 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.
Setting when connecting indoor units to Flow Selector (FS)
unit or Shut-off Valve (SV) unit, and when connecting safety
equipment
[Cautions to connection of indoor unit ]
• When connecting the indoor units to a single port type Flow Selector unit, a branch of the multi port type Flow
Selector unit and a Shut-off Valve unit, it is necessary to set up the CODE No.
Be sure to set up the CODE No. after setup of address.
• When connecting the indoor units to a single port type Flow Selector unit and a branch of the multi port type
Flow Selector unit and Shut-off Valve unit, it is possible to connect with multiple groups and connect individually.
• When connecting the indoor units to a branch of the multi port type Flow Selector unit, it is necessary to set up
the port address No. (the CODE No. [105]).
Be sure to set up the port address No..
• When connecting the indoor units to combining branches of the multi port type Flow Selector unit, it is necessary
to set up the CODE No. [106].
Be sure to set up the CODE No. [106].
• Even if you do not add safety equipment, be sure to set safety measures (the CODE No. [107]).
[Connection rules]
• It is possible to branch after the port.
• It is possible to set the group of indoor units after the port.
• The multi-port type Flow Selector unit can group indoor units with adjacent ports.
1) Group settings across ports are allowed only adjacent (contiguous) ports.
2) Only some indoor units in one port are not allowed to be grouped with the indoor units on other ports.
(It is allowed to group all indoor units in one port with the indoor units of other ports.)
• Ports can be combined and used.
1) Port combined use should be up to 2 ports, and combined use of 3 or more ports is not allowed.
2) Port combined use is allowed only for adjacent ports.
• Group settings across Flow Selector units or Shut-off Valve units are not allowed.
• The Flow Selector unit and Shut-off Valve unit are allowed in the system.
• Simultaneous connection of Flow Selector units and Shut-off Valve units to the same indoor unit is not allowed.
• It is not possible to set the port combined use across the P.C. board of the multiport type Flow Selector unit.
• Be sure to connect the No.1 port of the multiport type Flow Selector unit to the indoor unit.
(If the indoor unit is not connected to No.1 port, the air conditioning system will not operate.)
• In the case of the same group, connect one communication line to the Flow Selector unit (one place).
(The connection location should be made at the sub bus terminal of the address with the smallest port address
of the Flow Selector unit.)
[Setting rules]
• The safety measures for indoor units set in the group shall be the same. (Allow mixing in the system.)
• Only one detector is used in a group.
