Pp: Compressor Discharge Insufficient Superheat Protection - Midea VRF Series Service Manual

V6R VRF 50/60Hz

2.26 PP: Compressor discharge insufficient superheat protection

Digital display output
Description
 Compressor discharge insufficient superheat protection.
 All units stop running.
 Error code is displayed on the unit with the error.
Trigger / recover condition
 Trigger condition: Refer to Part 3 6.6 Wet Compression Protection Control.
 Recover condition: Refer to Part 3 6.6 Wet Compression Protection Control.
 Reset method: Resume automatically.
Possible causes
 Temperature sensor not connected properly or has malfunction.
 High pressure sensor not connected properly or has malfunction.
 Excess refrigerant.
 Some valves of ODU can't be fully closed.
 Some valves of IDU or MS can't be fully closed.
 Outdoor main PCB damaged.
138