20
Clearance of address (Return to status (Address undecided) at shipment from factory)
Method 1
An address is individually cleared from a wired remote controller.
“0099” is set up to line address, indoor address, and group address data from the wired remote controller.
(For the setup procedure, refer to the above-mentioned address setup from the wired remote controller.)
Method 2
Clear the indoor addresses in the same refrigerant line from the outdoor unit.
1. Turn off the power of the refrigerant line to be returned to the status at shipment from factory, and change the
header unit to the following status.
1) Remove the relay connector between [U1U2] and [U3U4].
(If it has been already removed, leave it as it is.)
2) Turn on SW30-2 on the interface P.C. board of the header unit if it is ON.
(If it has been already ON, leave it as it is.)
2. Turn on the indoor/outdoor power of which address is to be cleared. After approx. 1 minute, check that
“U.1. - - -” is displayed, and then execute the following operation on the interface P.C. board of the header unit of
which address is to be cleared in the refrigerant cycle line.
3. After “A.d. c.L.” has been displayed on 7-degment display, return SW01/SW02/SW03 to 1/1/1.
4. When the address clearing has correctly finished, “U.1.L08” is displayed on 7-degment display after a while.
If “A.d. n.G.” is displayed on 7-degment display, there is a possibility which is connected with the other
refrigerant cycle line. Check again the relay connector between [U1U2] and [U3U4] terminals.
NOTE) Be careful that the other refrigerant cycle line address may be also cleared if clearing operation is not
correctly executed.
5. After clearing of the address, set up an address again.
U3 U4
U1 U2
U5 U6
U1 U2
A B
Header unit
Remote
controller
U3 U4
U1 U2
U5 U6
U1 U2
A B
Follower unit
Remote
controller
U3 U4
U1 U2
U5 U6
U1 U2
A B
Remote
controller
U3 U4
U1 U2
U5 U6
U1 U2
A B
Follower unit
U3 U4
U1 U2
U1
U3
U2
U4
U5 U6
U1 U2
A B
Remote
controller
Center unit
Center unit
Header unit
Header unit
Central control
device
Unit of which address is to be returned to the initial status
SW01
SW02
SW03
2
1
2
2
2
2
SW04
After checking that “A.d.buS” is displayed on 7-degment
display, and then push SW04 for 5 seconds or more.
After checking that “A.d.nEt” is displayed on 7-degment
display, and then push SW04 for 5 seconds or more.
Address which can be cleared
Line + Group address
Central address
Summary of Contents for MAP0601HT7
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