Daikin ERQ Series Service Manual page 152

ESiEN09-06 A
3.2.4 Setting of Refrigerant Recovery Mode
When carrying out the refrigerant collection on site, fully open the respective expansion valve.
All unit operation is prohibited.
[Operation procedure]
3.2.5 Setting of Vacuuming Mode
In order to perform vacuuming operation at site, fully open the expansion valves of the units and
turn on some solenoid valves.
[Operating procedure]
Test Operation
In setting mode 2 with units in stop mode, set "Refrigerant Recovery / Vacuuming mode" to
ON. The respective expansion valve of the units are fully opened. (H2P turns to display
"TEST OPERATION" (blinks), "TEST OPERATION" is displayed on the remote controller,
and the all outdoor unit operation is prohibited.
After setting, do not cancel "Setting Mode 2" until completion of refrigerant recovery
operation.
Collect the refrigerant using a refrigerant recovery unit. (See the instruction attached to the
refrigerant recovery unit for more detal.)
Press Mode button "BS1" once and reset "Setting Mode 2".
With Setting Mode 2 while the unit stops, set "Refrigerant recovery / Vacuuming mode" to
ON. The expansion valves of the units fully open and some of solenoid valves open.
(H2P blinks to indicate the test operation, and the remote controller displays "Test
Operation", thus prohibiting operation.)
After setting, do not cancel "Setting Mode 2" until completion of Vacuuming operation.
Use the vacuum pump to perform vacuuming operation.
Press Mode button "BS1" once and reset "Setting Mode 2".
Field Setting
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