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Installation Manual
EN-65
EN-66
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
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.)
UNIT LOUVER
U1 U2
A
B
U1 U2
A
B
U1 U2
A
B
U1 U2
A
B
U1
U3
U2
U4
U1 U2
A
B
U4
U3
U2
U1
CN02
CN10
U4
U3
U2
U1
CN02
CN10
U4
U3
U2
U1
CN02
CN10
Remote
controller
Central controller
Remote
controller
Remote
controller
Remote
controller
Indoor units to have their addresses initialized
Outdoor unit
[U1, U2] and
[U3, U4] connected
[U1, U2] and
[U3, U4] connected
[U1, U2] and [U3, U4]
not connected
Outdoor unit
Outdoor unit
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 outdoor unit
indicates
and operate the interface P.C. board on the outdoor unit of the refrigerant line as
follows.
3
Confirm that the 7-segment display indicates
and set SW01, SW02 and SW03 to 1, 1, 1
respectively.
4
After a time
appears on the 7-segment display if the address clearing has been completed
successfully.
If
appears on the 7-segment display, the outdoor unit may still be connected to another
refrigerant line. Check again the connection of the relay connectors (CN10) between the [U1, U2] and [U3,
U4] terminals.
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.
SW01
SW02
SW03
SW04
Clearable addresses
2
1
2
Confirm that the 7-segment display indicates
and turn SW04 ON for more than
five seconds.
System / indoor unit / group address
2
2
2
Confirm that the 7-segment display indicates
and turn SW04 ON for more than
five seconds.
Central control address
U. 1. - - -
A.d.buS
A.d.nEt
A.d. c.L.
U.1.L08
A.d. n.G.
1FAN_IM_DHV0100301-00_EN.book Page 33 Saturday, November 4, 2017 2:39 PM
