Daikin FXSQ50P7VEB [192/370] Air tight testing procedure

Daikin FXSQ32PVE4 [192/370] Air tight testing procedure
Field Setting SiBE311209
183 Test Operation
3.2.7 Air Tight Testing Procedure
Carry out air tight testing after the completion of internal service for the system onsite. For this
purpose, fully open the electronic expansion valves of indoor and outdoor units and turn ON
some of solenoid valves.
[Testing procedure]
1. While in Setting Mode 2 with the system in a stopped state, set (A) Refrigerant recovery /
Vacuuming mode (Setting item No. 21) to ON. The electronic expansion valves of the indoor
and outdoor units will fully open and some of the solenoid valves will be excited. (H2P will
indicate that test operation is in progress (i.e., blink), and the remote controller will display
"Test Operation" and "Under centralized control), thus prohibiting operation.)
2. Close the stop valve of the liquid pipe, suction pipe, high and low pressure gas pipes, and
equalizer pipe (only on multi systems) respectively, and then carry out air tight testing at 4.0-
MPa pressure.
3. Press the MODE (BS1) to clear Setting Mode 2 .
<CAUTION>
Do not turn OFF the power supply of the outdoor unit while the air tight testing is in progress.
(Doing so will make the solenoid valves unexcited, thus disabling the air tight testing on the
outdoor unit.)
3.2.8 Setting of Refrigerant Recovery Mode
When carrying out the refrigerant collection onsite, fully open the respective electronic
expansion valve of indoor and outdoor units.
All indoor and outdoor unit’s operation are prohibited.
[Operation procedure]
c
In setting mode 2 with units in stop mode, set “Refrigerant Recovery / Vacuuming mode” to
ON. The respective electronic expansion valve of indoor and outdoor units are fully opened.
(H2P turns to display “TEST OPERATION” (blinks), “TEST OPERATION” and “UNDER
CENTRALIZED CONTROL” are displayed on the remote controller, and the all indoor /
outdoor unit operation is prohibited.
After setting, do not cancel “Setting Mode 2” until completion of refrigerant recovery
operation.
d
Collect the refrigerant using a refrigerant recovery unit. (See the instruction attached to the
refrigerant recovery unit for more detail.)
e
Press Mode button “BS1” once and reset “Setting Mode 2”.
3.2.9 Setting of Vacuuming Mode
In order to perform vacuuming operation onsite, fully open the electronic expansion valves of
indoor and outdoor units and turn on some solenoid valves.
[Operating procedure]
c
With Setting Mode 2 while the unit stops, set “Refrigerant recovery / Vacuuming mode” to
ON. The electronic expansion valves of indoor and outdoor units fully open and some of
solenoid valves open.
(H2P blinks to indicate the test operation, and the remote controller displays "Test
Operation" and "Under centralized control", thus prohibiting operation.)
After setting, do not cancel “Setting Mode 2” until completion of Vacuuming operation.
d
Use the vacuum pump to perform vacuuming operation.
e
Press Mode button “BS1” once and reset “Setting Mode 2”.

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