System Address Switch On Outdoor Interface P.c. Board - Toshiba Super MMU-AP0091H Service Manual

REQUIREMENT
• When a group control is performed over the
multiple refrigerant lines, be sure to turn on the
power supplies of all the indoor units connected
in a group in the time of address setup.
• If turning on the power for each refrigerant line
to set up address, a header indoor unit is set for
each line. Therefore, an alarm code "L03"
(Duplicated indoor header units) is output in
operation after address setup. In this case,
change the group address from the wired
remote controller for only one header unit is set
up.
Address setup procedure 2
1. Using SW13 and 14 on the interface P .C. board of
the header unit in each system, set up the system
address for each system.
(At shipment from factory: Set to Address 1)
Note) Be careful not to duplicate with other refriger-
ant line.

System address switch on outdoor interface P.C. board

SW13
System
address
1 2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
: Is not used for setup of system address. (Do not change setup.)
2. Check that the relay connectors between [U1U2] and
[U3U4] terminals are come out in all the header units to
which the central control is connected.
(At shipment from factory: No connection of connector)
3. Turn on power of indoor/outdoor.
(In order of indoor → → → → → outdoor)
4. After approx. 1 minute, check that 7-segment display is
U.1.L08 (U.1. flash) on the interface P .C. board of the
header unit.
5. Push SW15 and start setup the automatic address.
(Max. 10 minutes for 1 line (Usually, approx. 5 minutes))
6. When the count Auto 1 → → → → → Auto 2 → → → → → Auto 3 is displayed
in 7-segment display section, and it changes from
U. 1. - - - (U. 1. flash) to U. 1. - - - (U. 1. light) , the
setup finished.
7. Procedure 4. to 6. are repeated in other refrigerant lines.
SW14
3 4 1 2 3
× × × ×
¡
× × ×
¡
× × ×
¡ ¡
× ×
× × × ¡
¡ ¡
× ×
¡ ¡
× ×
¡ ¡ ¡
×
× × × ×
¡
× × ×
¡
× × ×
¡ ¡
× ×
× × × ¡
¡ ¡
× ×
(Example)
Cabling
systematic
diagram
Header unit interface P.C. board
ON
1 2 3 4
SW11
ON
1 2 3 4
SW06
System
address
4 1
×
15
×
16
×
17
×
18
×
19
×
20
×
21
×
22
¡
23
¡
24
¡
25
¡
26
¡
27
¡
28
2
95
Group control over
multiple refrigerant lines
Outdoor Outdoor
Indoor Indoor Indoor
Remote
controller
ON ON ON
1 2 3 4 1 2 3 4 1 2 3 4
SW12 SW13 SW14
ON ON ON ON
1 2 3 4 1 1 2 3 4 1 2 3 4
SW07 SW08 SW09 SW10
×
(¡: Switch ON, : Switch OFF)
SW13 SW14
2 3 4 1 2
¡
× ×
¡ ¡
×
¡
× ×
¡ ¡
×
¡ × ¡
¡ ¡ ¡
¡
× ×
¡ ¡
×
¡ ¡
×
¡ ¡ ¡
¡
× ×
¡ ¡
×
¡ × ¡
¡ ¡ ¡
U1 U2 U3 U4
For internal For wiring of
wiring between central control
indoor and system
outdoor
Indoor
3 4
¡ ¡
¡ ¡
× ×
× ×
× ×
× ×
¡
×
¡
×
¡
×
¡
×
¡
×
¡
×
× ¡
¡
×
U5 U6
For internal
wiring between
outdoor units