4-4
(2) Automatic pump down operation
Once the automatic pump down is started, all of the service works from refrigerant collection into
the receiver, to the equalizing in suction piping system, can be executed automatically.
When "Good" is displayed, service works such as replacing the dryer, etc. can be conducted
without any other operation.
q
w
e
r
t
[Preperation]
Turn on
Automatic pump
down.
Normal operation
for 1 minute.
[Pump down-Twice]
w
→
e
→
w
→
e
[Termination]
EV full close
Termination
GOOD
Pump down
start
Compressor
stops
at LP
≦
–55kPa
Compressor
continues to
stop for 20
seconds.
COMP.
ON
ON
OFF
OFF
OFF
LSV
ON
EV
ON
ON
ON
ON
ON (full close)
SMV
ON
ON
ON
ON
ON
ESV
ON
→
OFF
DSV
HSV
ON (1st)
BSV
CSV
HSV
Refrigerant collected line after automatic pump dpwn operation
Compressor
Reheat Coil
BSV
DSV
CSV
LSV
ESV
EV
Evaporator
RSV
DPR Condenser (Air)
Condenser
(Water)
Check valve
SMV
TEV
ISV
Drier
[Pressure
equalizing]
Increase
pressure to 0
〜
300Kpa in
low pressure
side.
ISV
ON (2nd)
https://daikin-p.ru
Содержание LXE10E-1
Страница 161: ...7 9 https daikin p ru ...
Страница 162: ...7 14 Schematic wiring diagram LXE10E 1 7 10 https daikin p ru ...
Страница 163: ...7 15 Stereoscopic wiring diagram LXE10E 1 7 11 https daikin p ru ...
