Automatic Address Setting From The Outdoor Unit - Sanyo SPW-C256VH Technical Data & Service Manual

Automatic address setting from the outdoor unit

(X, T, U Types)
Case 1
• If the power can be turned ON separately for the indoor and outdoor units in each system, the indoor unit addresses can be
set without running the compressor.
(1) Turn on the indoor and outdoor unit power for refrigerant system 1. Press and hold the automatic address setting button
(black) for 1 second or longer at the outdoor unit where the power was turned ON.
Communication for automatic address setting begins.
LED 1 and 2 on the outdoor unit control PCB blink alternately, and turn OFF when address setting is completed.
(2) Next, turn ON the power only at the indoor and outdoor units in a different system.
Press the automatic address setting button (black) on the outdoor unit.
LED 1 and 2 on the outdoor unit control PCB blink alternately, and turn OFF when address setting is completed.
Repeat the same procedure for each system and complete automatic address setting.
(3) Operation using the remote controller is now possible.
Case 2
• If the power cannot be turned ON separately for the indoor and outdoor units in each system:
The compressors must be run in order to automatically set the indoor unit addresses.
Therefore perform this step after completing the refrigerant tubing work.
(1) Turn ON the power to the indoor and outdoor units in all refrigerant systems.
When setting addresses in cooling mode
(2) Short-circuit the mode-change pin at the outdoor unit where automatic address setting will be performed.
Then press the automatic address setting button (black).
When setting addresses in heating mode
(2) Press the automatic address setting button (black) at the outdoor unit where automatic address setting will be performed.
(3) LED 1 and 2 blink alternately. The compressors begin running in Cooling (or Heating) mode.
Communication for automatic address setting begins, using the temperature changes at the indoor units.
<All indoor units are in operating status.>
Address setting is completed when the compressors stop and the LED indicators turn OFF.
<Approximately 15 minutes is required for 1 system.>
If address setting fails, LED 1 and 2 blink simultaneously and the alarm contents are displayed at the remote controller.
(4) After 1 system is completed, be sure to press the automatic address setting button (black) at the other outdoor units to
complete automatic address setting in the same way for each system.
(5) Operation using the remote controller is now possible.
Automatic address setting using the remote controller
Case 3
• If the power can be turned ON separately for the indoor and outdoor units in each system
(indoor unit addresses can be set without running the compressor):
Individual system automatic address setting: Display item code "A1".
(1) Press the remote controller timer time
(2) Then press either the temperature setting
(3) Use either the or
Then press the button.
( "R.C.1" is displayed, and automatic address setting is performed for refrigerant system 1.)
When automatic address setting for system 1 is completed, the units return to normal stopped status.
<Approximately 4 – 5 minutes are required.>
During automatic address setting, "SETTING" blinks on the remote controller display.
This display disappears when address setting is completed.
<Approximately 4 – 5 minutes are required.>
button and button simultaneously. (Hold for 4 seconds or longer.)
or button. (Confirm that the item code is "A1".)
button to select the outdoor unit to perform automatic address setting for.
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