Auto Address Setting - Sanyo Mini ECO-i SPW-ASR74GXH56(A/B) Installation Instructions Manual

05-194 5/27/05 5:06 PM

7-4. Auto Address Setting

Basic wiring diagram: Example (1)
(1) Automatic Address Setting from the Outdoor Unit
1. On the outdoor unit control PCB, check that the system address rotary switch (S002) is set to "1" and that the
DIP switch (S003) is set to "0."
2. To set the number of indoor units that are connected to the outdoor unit to 8, on the outdoor unit control PCB set
the No. of indoor units rotary switch (S004) to "8."
3. Turn ON the power to the indoor and outdoor units.
4. On the outdoor unit control PCB, short-circuit the automatic address pin (CN51) for 1 second or longer, then
release it.
↓
(Communication for automatic address setting begins.)
↓
(Automatic address setting is completed when LEDs 1 and 2 on the outdoor unit control PCB turn OFF.)
↓
5. Operation from the remote controllers is now possible.
* To perform automatic address setting from the remote controller, perform steps 1 to 3, then use the remote controller and
complete automatic address setting.
Refer to "Automatic Address Setting from the Remote Controller."
Page 41
• 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 unit settings
(S004)
System address No. of indoor units
(8 units setting)
(system 1 setting)
(S004)
(S003) (S002)
ON ON
1 2
OFF
Unit
Outdoor Unit
No. 1
1-1
Indoor Unit
Remote controller
ON
ON
(These are the settings at the time of factory shipment.)
1 2
OFF
* To cancel, again short-circuit the automatic address pin (CN51) for 1 second or longer, then pull it out.
The LED that indicates that automatic address setting is in progress turns OFF and the process is
stopped.
8
Inter-unit control wiring
1-2 1-3
Remote controller
cross-over wiring
Fig. 7-5
41
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