72 Samsung Electronics
Check Operation & Amount of Refriherant Automatically Checking
3) Pressure sensor
Ŷ Inspection item : High/Low Pressure sensor of the independent installed Outdoor Unit.
ŶError code: None (The resulting report "Undetermined")
Ŷ Determine the status of the Pressure sensor of the independent installed Outdoor Unit before the compressor start.
Ŷ If the judgment of Outdoor Unit Pressure sensor is "Undetermined" : Checking in accordance with the following order.
Yes
No
Yes
No
Yes
No
[Caution]
- If the Outdoor Unit with a history of operation (Automatic commissioning inclusion) : Maintain the vacuum mode for more than 5 minutes.
Vacuum mode of Outdoor Unt
Check the pressure sensor breakdown
Is Pressure
sensor connector properly connect
Is voltage 5V between
3, 4 pin of PCB Pressure sensor
terminal?
Is deviation
of outdoor unit as following?
High pressure Max/Min deviation :
less than 2
Off the vauum mode Outdoor Unit
Complete
Confirmation and Measures
Replace Hub PCB
Replace PCB
ఐ Check the Pressure sensor breakdown after the saturation pressure of the
outdoor temperature or connect the manifold gauge to check the pressure
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