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Auto Commissioning & Management System & Amount of Refrigerant Check Function
5) Main EEV
Things to Check: Main EEV of outdoor unit. (only when the operating mode of automated test operation is set to "heating")
Error Code: None (showing "Check Required" on the result report).
Determine the main EEV operation status of each outdoor unit.
When needing to check the main EEV of outdoor unit, please check in the following order.
Upon running
the Auto Commissioning & Management
Check valve and pressure sensor
System, are the valve and pressure
sensor normal?
Is the main EEV connector
Check and Take Action
connected properly?
Is the main EEV coil normal?
Replace coil
(Resistance, disconnection,
disabled, etc.)
Replace main PCB
Is the output signal of PCB normal?
Replace main EEV
Finish
* Standard Resistance Values of Main EEV Coil (Measured at 20℃)
Phase-to-phase
Operating
resistance
Voltage
(Ω)
(VDC)
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