7-11
7
2WAY SYSTEM
Test Run
4. Auto Address Setting
Test Run
4. Auto Address Setting
Case 3.b
Auto Address Setting in Cooling Mode
In case of impossibility of turning ON power to indoor/outdoor units in each refrigerant system:
The indoor unit auto address setting cannot be made unless the compressor is started.
How to Control Auto Address from Outdoor Unit
1. Make all settings following the same procedure described under steps 1 to 4 of
Case 2
.
5. Turn ON power to all indoor and outdoor units in all refrigerant systems.
6. If you wish to make auto address setting in
cooling mode
, while short circuiting COOL side of the MODE pin (CN40) on outdoor
main unit control P.C. board for the desired auto address setting, short circuit the A.ADD pin (CN30) for over 1 second long and then
open circuit.
Be sure to install address settings in each refrigerant system. It is impossible to perform auto address setting in a multiple
refrigerant system simultaneously.
Communication for auto address setting begins and the compressor starts and auto address setting in cooling mode begins.
All indoor units can also be operated.
* To cancel, again short circuit the A.ADD pin (CN30) for over 1 second long and then open circuit.
LEDs 1 and 2 that indicate auto address setting is in progress go out and that process is stopped.
Be sure to perform auto address setting again.
Auto address setting is completed when the compressor stops and LEDs 1 and 2 on outdoor main unit control P.C. board go out.
7. Short circuit the A.ADD pin (CN30) on outdoor main unit in another refrigerant system for over 1 second long and then open circuit.
Repeat the same procedure and complete auto address setting.
8. Remote control operation is now available.
* It is impossible to perform auto address setting in cooling mode by the remote controller.
Case 3.a
Auto Address Setting in Heating Mode
In case of impossibility of turning ON power to indoor/outdoor units in each refrigerant system:
Indoor unit auto address setting cannot be made unless the compressor is started.
How to Control Auto Address from Outdoor Unit
1. Make all settings following the same procedure described under steps 1 to 4 in
Case 2
.
5. Turn ON power to all indoor and outdoor units in all refrigerant systems.
6. If you wish to make auto address setting in
heating mode
, short circuit the A.ADD pin (CN30) on outdoor main unit control P.C.
board for the desired auto address setting in a refrigerant system for over 1 second long and then open circuit.
Be sure to make settings in each refrigerant system. It is impossible to perform auto address setting in a multiple refrigerant
system simultaneously.
Communication for auto address setting begins and the compressor is started and auto address setting in heating mode begins.
All indoor units can also be operated.
* To cancel, again short circuit the A.ADD pin (CN30) for over 1 second long and then open circuit.
LEDs 1 and 2 that indicate auto address setting is in progress go out and that process is stopped.
Be sure to perform auto address setting again.
Auto address setting is completed when the compressor stops and LEDs 1 and 2 on outdoor main unit control P.C. board go out.
7. Short circuit the A.ADD pin (CN30) on outdoor main unit in another refrigerant system for over 1 second long and then open circuit.
Repeat the same procedure and complete auto address setting.
8. Remote control operation is now available.
* When installing auto address setting by the remote controller, control auto address setting by the remote controller after step 5.
See the section “Auto Address Setting from Remote Controller”.
SM830253-00_欧州2way7_SM-TRSM.indb 11 16/08/03 14:14:25
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