Toshiba MMY-MAP0804FT8-E Installation Manual page 30

Header
Follower unit
unit
U3 U4 U3 U4
U1 U2 U5 U6 U1 U2 U5 U6
U1 U2 U1 U2
A B A B
Remote Remote
controller
controller
Indoor units to have their addresses initialized
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, confirm that the 7-segment display on
the header outdoor unit indicates "U.1. - - -" and operate the interface P.C. board on the header
outdoor unit of the refrigerant line as follows.
SW01 SW02 SW03
Confirm that the 7-segment display indicates
2 1 2 "A.d.buS" and turn SW04 ON for more than five
seconds.
Confirm that the 7-segment display indicates
2 2 2 "A.d.nEt" and turn SW04 ON for more than five
seconds.
3
Confirm that the 7-segment display indicates "A.d. c.L." and set SW01, SW02 and SW03 to 1, 1, 1
respectively.
4
After a time "U.1.L08" appears on the 7-segment display if the address clearing has been
completed successfully.
If the 7-segment display indicates "A.d. n.G.", the outdoor unit may still connected with other
refrigerant lines. Check the connection of the relay connectors between [U1, U2] and [U3, U4].
NOTE
Take care to carry out the procedure above correctly; otherwise, addresses in other refrigerate lines may also be cleared.
5
Set the addresses again after finishing the clearance.
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Header
Header
Follower unit
unit unit
U3 U4 U3 U4 U3 U4
U1 U2 U5 U6 U1 U2 U5 U6 U1 U2
U1 U2 U1 U2 U1 U2
A B A B A B
Remote Remote
controller
controller
SW04 Clearable addresses
System / indoor unit / group address
Central control address
– 29 –
 Setting when connecting
multiple indoor units to a FS
Central control
controller
(Flow Selector) unit
U1 U2
U3 U4
◆ Cautions to connection of indoor
unit
• When connecting the multiple indoor units to a single
FS unit, it is necessary to set up the CODE No..
U5 U6
Be sure to set up the CODE No. after setup of
address.
• When connecting the multiple indoor units to a single
FS unit, only group control is available.
For the indoor unit, a remote controller cannot be
individually connected.
• FS unit must be connected to one of the multiple
indoor units which is under group control of a remote
controller. The distance between FS unit and the
indoor unit must be within 15 m.
FS unit
Control wiring
between indoor
unit and FS unit
(Within 15 m)
Incorrect example of connection
FS unit
Control wiring
between
indoor unit
and FS unit
FS unit
Control wiring
between
indoor unit
and FS unit
Remote controller
◆ How to set up CODE No.
2
5
4
1
Push
for 4 seconds or more.
•
• In this time, the fans of all the indoor units in the
group control start the fan operation.
2
Piping Using the set temperature buttons
3
Change SET DATA to "
buttons
Indoor
unit 4
Remote controller Push
5
Push
Group control
FS unit
Piping
Piping
Indoor
unit
NG
Remote controller
Group control
Piping
Indoor
unit
NG
.
1
3
VENT TEST
+ buttons simultaneously
is displayed in the UNIT No. window.
/
, select the CODE No. " ".
" by the timer
/ .
SET
button.
TEST
button. Then the setup finished.
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