SiUS281117
Field Setting from Outdoor Unit
92
Field Setting
3.7.4 Setting of Refrigerant Recovery Mode
When carrying out the refrigerant collection on site, fully open the respective electronic
expansion valve of indoor and outdoor units.
Both the outdoor unit and the indoor unit are forbidden to operation.
[Operation procedure]
(1) 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 operation is
prohibited.
(2) Collect the refrigerant using a refrigerant recovery unit. (See the instruction attached to the
refrigerant recovery unit for more detail.)
(3) Press Mode button “BS1” once and reset “Setting Mode 2”.
3.7.5 Setting of Vacuuming Mode
In order to perform vacuuming operation at site, fully open the electronic expansion valves of
indoor and outdoor units to turn on some solenoid valves.
Both the outdoor unit and the indoor unit are forbidden to operation.
[Operating procedure]
(1) 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.
(2) Use the vacuum pump to perform vacuuming operation.
(3) Press Mode button “BS1” once and reset “Setting Mode 2”.
