Toshiba MMU-AP0091H service manual End, Push SET button to determine the setup data, Method

•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)

1Push the timer time + TEST buttons simultaneously for 4 seconds or more. Firstly, the line 1, item code AC (Address Change) is displayed.

2	Using	UNIT + SWING/FIX buttons, select the line address.
3	Push SET	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 / buttons.

Change the setup data to a new address.

	5	Push SET button to determine the setup data.
	6	Every pushing	UNIT	button, the indoor unit numbers in the identical pipe are successively
		displayed. Only fan of the selected indoor unit operates.
		Repeat the procedure 4 to 6 and change all the indoor addresses so that they are not duplicated.
	7	Push SET button.
		(All the displays on LCD go on.)
92	8	Push TEST button to finish the procedure.

	CODE No.		CODE No.
SET DATA SETTING		SET DATA SETTING
UNIT	No.	UNIT	No.
R.C.	No.	R.C.	No.

	TEMP.			ON / OFF		TEMP.			ON / OFF
		TIMER SET	FAN	MODE	4		TIMER SET	FAN	MODE
1		TIME	SWING/FIX	VENT			TIME	SWING/FIX	VENT
	FILTER			2		FILTER			6
	RESET TEST	SET CL	UNIT		8	RESET TEST	SET CL	UNIT
3
		Cancel of line selection				5, 7 To finish the set

Here, if the unit No is not called up, the outdoor unit in	Operation procedure
	1 2	3	4	Æ
this line does not exist.
CL	5 Æ6	Æ7	Æ8
procedurePush button,2 . and then select a line according to				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 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 OFF. (If it has been already ON, leave it as it is.)

Central control

device

U1 U2

U3 U4

Header unit	Follower unit			HeaderCent unitnit	Follower unit			HeaderCenter unitunit
U3 U4		U3 U4		U3 U4		U3 U4		U3 U4
U1 U2	U5 U6	U1 U2	U5 U6	U1 U2	U5 U6	U1 U2	U5 U6	U1 U2	U5 U6
U1 U2		U1 U2		U1 U2		U1 U2		U1 U2
A	B	A B		A	B	A B		A	B
Remote		Remote		Remote				Remote
controller		controller		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 header unit of which address is to be cleared in the refrigerant line.

SW01	SW02	SW03	SW04	Address which can be cleared
2	1	2	After checking that “A.d.buS” is displayed on 7-degment	Line + Indoor + Group address
			display, and then push SW04 for 5 seconds or more.
2	2	2	After checking that “A.d.nEt” is displayed on 7-degment	Central address
			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.