Clearance Of Address - Toshiba MiNi-SMMS MCY-MAP0501HT Service Manual

• To change all the indoor addresses from an arbitrary wired remote controller;
(When the setup operation with automatic address has finished, this change is available.)
Contents : Using an arbitrary wired remote controller, the indoor unit address can be changed for each same
refrigerant line
∗ ∗ ∗ ∗ ∗ Change the address in the address check/change mode.
<Procedure> (Operation while air conditioner stops)
1
TEST
Push the timer time + buttons simultaneously for 4 seconds or more.
AC
Firstly, the line 1, item code (Address Change) is displayed.
2
Using UNIT + SWING/FIX buttons, select the line address.
3
SET
Push button.
• The indoor unit address, which is connected to the refrigerant pipe of the selected outdoor unit is dis-
played and the fan is turned on.
First the current indoor address is displayed on the setup data. (Line address is not displayed.)
4
The indoor address of the setup data moves up/down by the timer time
Change the setup data to a new address.
5
Push SET button to determine the setup data.
6
UNIT
Every pushing button, the indoor unit numbers in the identical pipe are successively
displayed. Only fan of the selected indoor unit operates.
4 6
Repeat the procedure to and change all the indoor addresses so that they are not duplicated.
7
SET
Push button.
(All the displays on LCD go on.)
8
TEST
Push button to finish the procedure.
CODE No.
SET DATA
SETTING
UNIT No.
R.C. No.
TEMP. ON / OFF
TIMER SET FAN MODE
1
TIME SWING/FIX VENT
2
FILTER
RESET TEST SET CL UNIT
3
Cancel of line selection
Here, if the unit No is not called up, the outdoor unit in
this line does not exist.
CL
Push button, and then select a line according to
2
procedure .
/ buttons.
CODE No.
SET DATA
SETTING
UNIT No.
R.C. No.
TEMP. ON / OFF
TIMER SET FAN MODE
4
TIME SWING/FIX VENT
FILTER
6
RESET TEST SET CL UNIT
8
5, 7
To finish the set
Operation procedure
® ® ® ®
1 2 3 4
® ® ®
5 6 7 8
End

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 remote controller.
(For the setup procedure, refer to the abovementioned address setup from the 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, and change the outdoor
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 outdoor unit if it is OFF.
(If it has been already ON, leave it as it is.)
Outdoor unit Outdoor unit Center unit
U3 U4
U1 U2 U5 U6
U1 U2 U1 U2
A B A B
Remote Remote
controller controller
Unit of which address is to be returned to the initial status
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 outdoor
unit of which address is to be cleared in the refrigerant line.
SW01 SW02 SW03 SW04
After checking that "A.d.buS" is displayed on 7-degment
2 1 2
display, and then push SW04 for 5 seconds or more.
After checking that "A.d.nEt" is displayed on 7-degment
2 2 2
display, and then push SW04 for 5 seconds or more.
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 line. Check again the relay connector between [U1U2] and [U3U4] terminals.
NOTE) Be careful that the other refrigerant line address may be also cleared if clearing operation is not
correctly executed.
5. After clearing of the address, set up an address again.
Central control
device
U1 U2
U3 U4
Outdoor unit Center unit
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
controller controller
Address which can be cleared
Line + Indoor + Group address
Central address