Toshiba MMY-SAP0806HT8P-E Service Manual page 93

2) Turn on DIP switch 2 of SW30 on the interface P.C. board of the outdoor unit if the switch is OFF.
(Leave it as it is if it has already been set to ON.)
Outddor
unit
U3 U4
U1 U2
U1 U2
A B
Remote
controller
Turn on the indoor and outdoor units of the refrigerant line to be initialized in addresses.
2
About one minute after turning on the power, confirm that the 7-segment display on the outdoor
unit indicates "U.1. - - -" and operate the interface P.C. board on the outdoor unit of the
refrigerant line as follows.
S W 0 1 S W 0 2 S W 0 3
2 1 2
2 2 2
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.
Outdoor
unit
U1 U2
U1 U2 U1 U2
A B
Remote
controller
Indoor units to have their addresses initialized
S W 0 4
Confirm that the 7-segment display indicates
"A.d.buS" and turn SW04 ON for more than five
seconds.
Confirm that the 7-segment display indicates
"A.d.nEt" and turn SW04 ON for more than five
seconds.
U3 U4
U1 U2
A B A B
Remote
controller
System/indoor unit/group address
- 93 -
Central remote
controller
U1 U2
U3 U4
Outdoor
unit
U3 U4
U1 U2
U1 U2
A B
Remote
controller
C e l a a r b e l a d d e r s s e s
Central control address