Protection Control; Pressure Protection Control - LG R410A Service Manual

3. Protection control

3.1 Pressure protection control

3.1.1 Pressure control on cooling mode
I High pressure control
Pressure Range
Pd ≥ 3513 kPa
Pd > 3382 kPa
Pd ≥ 3186 kPa
I Low pressure control
Pressure Range
Ps ≤ 203 kPa
after 1min
Ps ≤ 203 kPa
before 1min
Ps ≤ 216 kPa
Ps ≥ 373 kPa
Compressor
Stop
-5Hz/2sec.
Frequency holding
Compressor
Stop
-5 Hz/2sec.
Normal control
Normal control
Fan Hot gas
Stop
+10Hz/2sec.
Normal control
Fan Hot gas
Stop
-10Hz/2sec.
Frequency
holding
Function
On
Off
Service Manual 97