Toshiba MCY-MHP0404HS8-E Installation Manual page 34

To change all the indoor unit addresses using an arbitrary wired remote controller.
(The method is available when the addresses have already been set automatically.)
(When communication wirings of 2 or more refrigerant lines are interconnected for central control)
NOTE
You can change the addresses of indoor units in each refrigerant line using an arbitrary wired remote controller.
* Enter the address check / change mode and change the addresses.
1
3
If no number appears on UNIT No., no outdoor unit exists on the line. Push
step 2.
(Execute it while the units are stopped.)
1
Push and hold the TIME and
At first, the line 1 and CODE No.
2
Push UNIT LOUVER (left side of the button) and
3
Push the button.
• The address of one of the indoor units connected to the selected refrigerant line is indicated on the LCD display
and the fan and louvers of the unit are activated.
At first, the current indoor unit address is displayed in SET DATA.
(No system address is indicated.)
4
8
Finish
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CODE No.
SET DATA SETTING
UNIT No.
R.C. No.
TEMP. ON / OFF
TIMER SET
TIME
FILTER
RESET TEST SET CL
2
Cancels the line selection
button and select another line following
buttons at the same time for more than 4 seconds.
(Address Change) are indicated on the LCD display.
SWING/FIX buttons repeatedly to select a system address.
CODE No.
SET DATA SETTING
UNIT No.
R.C. No.
TEMP. ON / OFF
TIMER SET
TIME
FILTER
RESET TEST SET CL
6
5, 7 Press to finish
setting.
– 33 –
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 button to confirm the new address on SET DATA.
6
Push the UNIT LOUVER button (left side of the button) repeatedly to select another address to change.
Each time you push the button, the indoor unit numbers in a refrigerant line are indicated one after
another. Only the fan and louvers of the selected indoor unit are activated.
Repeat steps 4 to 6 to change the indoor unit addresses so as to make each of them unique.
7
Push the button.
(All the segments on the LCD display light up.)
8
Push the button to finish the procedure.
Resetting the address
(Resetting to the factory default (address undecided))
Method 1
Clearing each address separately using a wired remote controller.
Set the system address, indoor unit address and group address to "0099" using a wired remote controller.
(For the setting procedure, refer to the address setting procedures using the wired remote controller on the previous
pages.)
Method 2
Clearing all the indoor unit addresses on a refrigerate line at once from the outdoor unit.
1
Turn off the refrigerant line to reset to the factory default and set the outdoor unit of the line as below.
1) Disconnect the relay connectors between the [U1, U2] and [U3, U4] terminals.
(Leave them as they are if they have already been disconnected.)
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.)
[U1, U2] and [U3, U4]
Outdoor unit
not connected
U3 U4
CN10
CN02
U1 U2
U1 U2 U1 U2
A B A B
Remote Remote
controller controller
[U1, U2] and [U1, U2] and
Outdoor unit
[U3, U4] connected [U3, U4] connected
U3 U4
CN10
CN02
U1 U2
U1 U2 U1 U2
A B A B
Remote
controller
Indoor units to have their addresses initialized
Installation Manual
Central controller
U1 U2
U3 U4
Outdoor unit
U3 U4
CN10
CN02
U1 U2
U1 U2
A B
Remote
controller
EN-66