Daikin VRV III REYQ8PY1 Service Manual page 214

Si37-701
3.2.6 Setting of Refrigerant Recovery Mode
When carrying out the refrigerant collection on site, fully open the respective expansion valve of
indoor and outdoor units.
All indoor and outdoor unit's operation are prohibited.
[Operation procedure]
3.2.7 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]
3.2.8 Check Operation Detail
CHECK OPERATION FUNCTION
Unit stopping
Step 1
Pressure equalizing
Step 2 Cooling start control
Step 3 Stop valve close check
Step4~8
Judgement function
Step 9 Pump down residual operation
Step 10 Standby for restarting
Completion
Test Operation
In setting mode 2 with units in stop mode, set "Refrigerant Recovery / Vacuuming mode" to
ON. The respective 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.
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 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.
Use the vacuum pump to perform vacuuming operation.
Press Mode button "BS1" once and reset "Setting Mode 2".
(Press the MODE button BS1 once and set to SETTING MODE 1 (H1P: OFF))
Press the TEST button for 5 seconds.
10 sec to 10 minutes
20 sec to 2 minutes
• Stop valve close check
• Wrong wiring check
• Correct Refrigerant charge check
• Piping length check
5 minutes
5 minutes
8:
LED display (H1P~H7P) (
3383333
3933338
3933383
3933388
Stop valve check
3933833
Stop valve check
3933838
Wrong wiring check
3933883
Piping length check
3938338
3938383
Field Setting
3: 9:
ON OFF BLINK)
203