Sanyo XHX1252, UHX2452, UHX0752, UHX1252 Auto Address Setting Basic wiring diagram Example

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Test Run

3. Auto Address Setting

1. Auto Address Setting

Basic wiring diagram: Example (1)

•If link wiring is not used

(The inter-unit control wires are not connected to multiple refrigerant systems.) Indoor unit addresses can be set without operating the compressors.

No. 1 (main outdoor unit)

	settings No. of indoor units
System address	(10 units setting)
	(S004)
(system 1 setting)
	0

(S002)

(S003)

ON

ON

(S005)

No. 2 (sub unit)

No. 3 (sub unit)

1

2

OFF

ON

ON

No. of

1

2

3

OFF

Unit

Unit

(S007)

(S006)

(S007)

(S007)

ON

outdoor

ON

Unit number

number

ON

ON

number

ON

ON

ON

ON

units (3 units

setting

setting

setting

1

2

3

OFF

1

2 3

OFF

setting)

1

2

3

OFF

(Unit No. 1)

1

2

3

OFF

(Unit No. 2)

(Unit No. 3)

		Leave the socket that
	Unit	is used to short-circuit	Unit		Unit
Outdoor Unit		the terminal plug.
	No. 1	(CN003)	No. 2		No. 3
	(Main)	Outdoor main/sub	(Sub)	Outdoor main/sub	(Sub)
		control wiring		control wiring

Inter-unit control wiring

Indoor Unit	1-1	1-2	1-3	1-10
				Remote controller
Remote controller				cross-over wiring

Case 1

(1) Automatic Address Setting from the Outdoor Unit

1.To set the number of outdoor units, on the outdoor main unit control PCB set the No. of outdoor units DIP switch (S006) to

ON		ON		ON
			(3 units), and set the unit No. DIP switch (S007) to								(unit No. 1 - main outdoor unit).
	1 2 3 OFF				1	2			3
							ON
2. On the No. 2 (sub) unit control PCB, set the unit No. switch (S007) to													(unit No. 2).
								1		2		3
							ON
On the No. 3 (sub) unit control PCB, set the unit No. switch (S007) to													(unit No. 3).
								1		2		3

3.On the outdoor main unit control PCB, check that the system address rotary switch (S002) is set to “1” and that the DIP

ON ON

switch (S003) is set to “0.” (These are the settings at the time of factory shipment.)

1 2 OFF

4.To set the number of indoor units that are connected to the outdoor unit to 10, on the outdoor main unit control PCB set the

ON ON

No. of indoor units DIP switch (S005) to “1.” and set the rotary switch (S004) to “0.”

1 2 3 OFF

5.Turn ON the power to the indoor and outdoor units.

6.On the outdoor main unit control PCB, short-circuit the automatic address pin (CN100) for 1 second or longer, then release it.

(Communication for automatic address setting begins.)

*To cancel, again short-circuit the automatic address pin (CN100) for 1 second or longer, then release it. The LED that indicates that automatic address setting is in progress turns OFF and the process is stopped. Be sure to perform automatic address setting again.

(Automatic address setting is completed when LEDs 1 and 2 on the outdoor main unit control PCB turn OFF.)

7.Operation from the remote controllers is now possible.

*To perform automatic address setting from the remote controller, perform steps 1 to 5, then use the remote controller and complete automatic address setting.

zRefer to “Automatic Address Setting from the Remote Controller.”

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