Samsung AM080xXV Series - Page 263

Test Operation
9-6 Samsung Electronics
3) High / Low pressure sensor (Module installed)
Ŷ High/Low Pressure sensor of each of the outdoor unit that module is installed.
Ŷ Error code of High Pressure sensor : E505 (The resulting report "Undetermined")
Error code of Low Pressure sensor : E506 (The resulting report "Undet
ermined")
Ŷ Determine the status of the High/Low Pressure sensor of the each Outdoor Unit installed before the compressor start.
Ŷ If the judgment of Outdoor Unit High/Low Pressure sensor is "Undetermined" : Checking in accordance with the following order.
[Caution]
- If the judgment of Pressure sensor "Undetermined" :
Display the error to all of the Outdoor Unit and then Auto Trial Operation is exited. (Stop the overall system)
Yes
Conrmation and Measures
No
Is Pressure sensor connector properly connect?
Yes
Replace PCB
No
Is voltage 5V between 3, 4 pin
of PCB Pressure sensor terminal?
Yes
Replace Pressure sensor
No
Is deviation of outdoor
unit as following?"High pressure Max
/Min deviation : less than 2"
O the vacuum mode
(All of the Outdoor Unit)
Check the Pressure sensor breakdown
Complete
Vacuum mode (All of the Outdoor Unit)
※
Check the Pressure sensor breakdown after the saturation pressure
of the outdoor temperature or connect the manifold gauge to check the pressure.
Yes
Is Service Valve open state
of installed module? (Each Outdoor Unit )
No
Service Valve opening of the Outdoor Unit