Toshiba Carrier MMY-MAP0726HT6P-UL Installation Manual page 24

8
If the addresses have been changed
correctly, push the "TEST SET " button to
fi nish the procedure.
▼ How to change indoor unit address for 2 or
more refrigerant lines (that are interconnected
for central control), when the original
addresses were set automatically, by using
single wired remote control.
This must be done while the units are not
operating.
CODE No.
SET DATA SETTING
UNIT No.
R.C. No.
TEMP. ON / OFF
TIMER SET
1
TIME
FILTER
RESET TEST SET CL
3
Cancels the line selection
1
Simultaneously push and hold the "TIME
" and "TEST TEST " for more than 4
seconds.
"LINE " and "CODE No.
displayed on the LCD.
2
Push the left end of the "UNIT LOUVER
" button and the "SWING/FIX
repeatedly to select a system address.
3
Push the "SET SET " button and the address
of one of the indoor units on the selected
refrigerant line will be displayed on the LCD
in the "SET DATA" fi eld. The fan and
louvers of the addressed unit will operate.
CODE No.
SET DATA
SETTING
UNIT No.
R.C. No.
TEMP. ON / OFF
4 TIMER SET
TIME
FILTER
8 RESET TEST SET CL
Finish
5, 7
Press to fi nish
setting.
45-EN
4
Push the "TIME / " buttons repeatedly
to change the value of the indoor unit
address in SET DATA.
Change the value in SET DATA to that of a
new address.
5
Push the "SET SET " button to confi rm the
new address in SET DATA.
6
Push the left end of the "UNIT LOUVER
" button repeatedly to an address to
change. Each push of the button indicates
another indoor unit address in the selected
refrigerant line. When an indoor unit address
is selected for change the fan and louvers of
that unit will operate. Repeat steps
6
to change an indoor unit address.
Each address must be unique.
7
Push the "SET SET " button to save the
changed addresses.
2
8
TEST
Push the "TEST " button to fi nish the
procedure.
" will be
SWING/FIX "
6
– 23 –
■ Resetting to factory default address
Method 1
Follow steps 1 through 11 by using a direct wired remote control (page 21) to reset line (system) address, indoor
unit addresses and group addresses to "0099".
Method 2
Clearing all the indoor unit addresses on a single refrigerant line and reset all addresses to the factory default
settings follow the steps below:
1. To turn off the refrigerant line and reset all address to the factory default settings follow the steps below:
A. On the header outdoor unit, open the connector between (U1, U2) and (U3, U4) terminals.
B. On the header outdoor, interface PC board, SW30 DIP switch 2, set to ON.
4 5
, and
Header
unit
U3 U4
U1 U2 U5 U6
U1 U2 U1 U2
A B
Remote
control
1
Turn on the indoor and outdoor units of the refrigerant line for which initialize the addresses to
be initialized. About one minute after turning on the power, confi rm 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
2 1 2
2 2 2
2
Confi rm that the 7-segment display indicates "A.d. c.L." and set SW01, SW02 and SW03 to 1, 1, 1
respectively.
3
After a time "U.1.L08" appears on the 7-segment display if the address clearing has been
completed successfully.
4
Set the addresses again after fi nishing the clearance.
Header
Follower unit Follower unit
unit
U3 U4 U3 U4 U3 U4
U1 U2 U5 U6 U1 U2 U5 U6 U1 U2
U1 U2 U1 U2
A B A B A B
Remote
Remote
control
control
Indoor units to have their addresses initialized
SW04
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.
Central control
U1 U2
U3 U4
Header
unit
U3 U4
U5 U6 U1 U2 U5 U6
U1 U2
A B
Remote
control
Clearable addresses
System/indoor unit/group address
Central control address
46-EN