Toshiba MMU-AP0091H service manual Address Setup Procedure, Address setup procedure

8-4-3. Address Setup Procedure

In this air conditioner, it is required to set up address to the indoor unit before starting opera- tion. Set up the address according to the following setup procedure.

CAUTION

1.Set up address after wiring work.

2.It requires maximum 10 minutes (Usually, approx. 5 minutes) to set up automatically an address to 1 line.

3.To set up an address automatically, the setup at outdoor side is necessary. (Address setup cannot be performed by power-ON only.)

4.To set up an address, it is unnecessary to operate the air conditioner.

5.Manual address setup is also available besides automatic setup.

Automatic address	: Setup from SW15 on the interface P.C. board of the header unit
Manual address	: Setup from the wired remote controller

REQUIREMENT

•When a group control is performed over the multiple refrigerant lines, be sure to turn on the power supplies of all the indoor units connected in a group at the time of address setup.

•If turning on the power for each refrigerant line to set up address, a header indoor unit is set for each line. Therefore, an alarm code “L03” (Duplicated header indoor units) is output in operation after address setup. In this case, change the group address from the wired remote controller for only one header unit is set up.

(Example)		Group control over
	multiple refrigerant lines
Cabling
systematic	Outdoor			Outdoor
diagram
	Indoor		Indoor	Indoor	Indoor
	Remote
	controller

∗It is temporarily necessary to set the indoor unit and wired to 1 : 1. (In group operation and in time without remote controller)

Automatic Address Setup

Without central control : To the address setup procedure 1

With central control	: To the address setup procedure 2
	(However, go to the procedure 1 when the central control is performed in a single refrigerant line.)

Address setup procedure 2

1.Using SW13 and 14 on the interface P.C. board of the outdoor unit in each system, set up the address for each system. (At shipment from factory: Set to Address 1)

Note) Be careful not to duplicate addresses with the other refrigerant line.

Line address switch on outdoor interface P.C. board

Header unit interface P.C. board

	ON		3	4	ON		3	4		ON		3	4	ON		3	4
	1	2			1	2				1	2			1	2
		SW11				SW12					SW13				SW14
ON		3	4	ON		3	4		ON		ON		3	4	ON		3	4
1	2			1	2				1		1	2			1	2
	SW06				SW07				SW08			SW09				SW10

(¡: Switch ON, × : Switch OFF)

89

(Example)	In case of central control in a single refrigerant line					In case of central control over refrigerant lines
Address setup procedure			To procedure 1					To procedure 2
Cable systematic diagram
		Outdoor	Central	Outdoor	Central		Outdoor		Outdoor	Central
			remote controller		remote controller					remote controller
		Indoor	Indoor	Indoor	Indoor		Indoor	Indoor	Indoor	Indoor
		Remote	Remote	Remote			Remote	Remote	Remote
		controller	controller	controller			controller	controller	controller

Line		SW13				SW14
address	1	2	3	4	1	2	3	4
1				×	×	×	×	×
2				×	¡	×	×	×
3				×	×	¡	×	×
4				×	¡	¡	×	×
5				×	×	×	¡	×
6				×	¡	×	¡	×
7				×	×	¡	¡	×
8				×	¡	¡	¡	×
9				×	×	×	×	¡
10				×	¡	×	×	¡
11				×	×	¡	×	¡
12				×	¡	¡	×	¡
13				×	×	×	¡	¡
14				×	¡	×	¡	¡

Line		SW13				SW14
address	1	2	3	4	1	2	3	4
15				×	×	¡	¡	¡
16				×	¡	¡	¡	¡
17				¡	×	×	×	×
18				¡	¡	×	×	×
19				¡	×	¡	×	×
20				¡	¡	¡	×	×
21				¡	×	×	¡	×
22				¡	¡	×	¡	×
23				¡	×	¡	¡	×
24				¡	¡	¡	¡	×
25				¡	×	×	×	¡
26				¡	¡	×	×	¡
27				¡	×	¡	×	¡
28				¡	¡	¡	×	¡

Address setup procedure 1

Header unit interface P.C. board

: Is not used for setup of system address. (Do not change setup.)

1. Turn on power of indoor/outdoor units.

(In order of indoor → Outdoor)

SW04 SW05 SW15

3

2. Check that the relay connectors between [U1, U2] and

[U3, U4] terminals are not connected in all the outdoor

2. After approx. 1 minute, check that U. 1. L08 (U. 1. flash)

is displayed in 7-segment display section on the interface

P.C. board of the outdoor unit.

3.Push SW15 to start the setup of the automatic addressing. (Max. 10 minutes for 1 line (Usually, approx. 5 minutes))

4. When the count		Auto 1 →		Auto 2 → Auto 3	is displayed
in 7-segment display section, and it changes from
	U. 1. - - - (U. 1. flash)		to	U. 1. - - - (U. 1. light)		, the setup
finished.

5.When performing an automatic address setup on a single refrigerant line with central control, connect relay connected between [U1, U2] and [U3, U4] terminals in the header unit.

2, 4

D600 D601 D602 D603 D604

SW01 SW02 SW03

1 1 1

5

U1 U2	U3 U4	U5 U6
For internal	For wiring of	For internal
wiring between
	central control	wiring between
indoor and	system	outdoor units
outdoor

units to which the central control is connected.

(At shipment from factory: Connector not connected)

3. Turn on power of indoor/outdoor.

(In order of indoor → outdoor)

4. After approx. 1 minute, check that 7-segment display is

U.1.L08 (U.1. flash) on the interface P.C. board of the outdoor unit.

5.	Push SW15 to start the setup of automatic addressing.
	(Max. 10 minutes for 1 line (Usually, approx. 5 minutes))								2
	When the count
6.			Auto 1 →		Auto 2 →	Auto 3	is displayed
	in 7-segment display section, and it changes from
		U. 1. - - - (U. 1. flash)		to	U. 1. - - - (U. 1. light)			, the
	setup finished.

7. Procedure 4. to 6. are repeated in other refrigerant lines.

U1 U2	U3 U4	U5 U6
For internal	For wiring of	For internal
wiring between
	central control	wiring between
indoor and	system	outdoor units
outdoor