2.27 A0: Emergency shutdown
Digital display output
Description
ï‚§ Compressor discharge insufficient superheat protection.
ï‚§ All units stop running.
ï‚§ Error code is only displayed on the master unit.
Trigger / recover condition
ï‚§ Trigger condition:
The port of CN91 on the outdoor main PCB has short-circuitedï¼›
Received the emergency shutdown instructions from centralized controller.
ï‚§ Recover condition:
The port of CN91 on the outdoor main PCB disconnects.
Cancel the emergency shutdown instructions from centralized controller.
ï‚§ Reset method: Resume automatically.
Possible causes
ï‚§ Outdoor main PCB damaged.
ï‚§ Instructions of centralized controller