Setting Of Vacuuming Mode; Setting Of Automatic Pump Down Operation - Daikin ERSQ 011AAV1 Service Manual

Field Setting

3.2.2 Setting of Vacuuming Mode

In order to perform vacuuming operation at site, fully open the expansion valves of indoor and
outdoor units and turn on some solenoid valves.
[Operating procedure]

3.2.3 Setting of Automatic Pump Down Operation

When carrying out the automatic pump down operation, follow below operation procedure.
[Operating procedure]
4 The compressor and outdoor unit fan will start operating automatically. During operation, the
5 If step 6 is reached (pressure drops below 3 bar) or if operation stops, close the gas stop
6 Turn off the main power supply.
Remark: Make sure to re-open both stop valves before restarting the unit.
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In "Setting Mode 2" with units in stop mode, set "B Refrigerant Recovery / Vacuuming mode"
(setting 21) to ON. The respective expansion valve of indoor and outdoor units are fully
opened. "TEST OPERATION" and "UNDER CENTRALIZED CONTROL" are displayed on
the remote control, and the indoor / outdoor unit operation is prohibited.
After setting, do not cancel "Setting Mode 2" until completion of Vacuuming operation.
Use the vacuum pump to perform vacuuming operation.
When finished vacuuming, press Mode button "BS1" once and reset "Setting Mode 2".
Turn on the main power supply.
Make sure the liquid stop valve is closed and the gas stop valve is open and that the low
pressure switch is working.
In "Setting Mode 2", set "Automatic Pump Down" (setting 61) to ON. After setting, do not
cancel "Setting Mode 2" until completion of pump down operation.
LED's are showing the progress.
H1P H2P
Step 1
w c
Step 2
w c
Step 3
w c
Step 4
w c
Step 5
w c
Step 6
w c
valve.
(w: ON x: OFF c: BLINK)
H3P H4P H5P
w w w
x w w
x x w
x x x
x x x
x x x
ESIE09-08
H6P H7P
w w
w w
w w
w w
x w
x c
Test Operation