Caution For Pump Down - Sanyo SPWXDR124GH56A Manual Del Usuario

10-27. Caution for Pump Down

Pump down means refrigerant gas in the system
is returned to the outdoor unit. Pump down is used
when the unit is to be moved, or before servicing the
refrigerant circuit.
CAUTION
Important Information Concerning Pump Down
Observe the following items when using pump down operation to recover the refrigerant.
(1) If the length of inter-unit tubing exceeds 30 m, pump down cannot be used to recover the refrigerant. (The overload
protection device may be activated.)
In that case, use refrigerant recovery equipment to recover the refrigerant.
(2) Press and hold the "PUMP DOWN" button on the outdoor unit PCB for 1 second or longer.
• During refrigerant recovery, LED 1 blinks and LED 2 is lit.
• Close the liquid-side valve during refrigerant recovery. If the unit is operated for 10 minutes or longer with the
liquid-side valve open, operation will be stopped, although no alarm will be displayed on the remote control-
ler. If this occurs, close the valve and restart operation.
(3) When the valve service port pressure is approximately 0.1 MPa, press the S005 (PUMP DOWN) button again to end
refrigerant recovery.
• In order to protect the compressor, do not continue operating to generate a negative pressure in the inter-
unit tubing.
4 – 6 HP
S003 S001
S002
DC̲Inverter̲Eng.indd 103 DC̲Inverter̲Eng.indd 103
●
This outdoor unit cannot col-
lect more than the rated refrig-
erant amount as shown by the
nameplate on the back.
●
If the amount of refrigerant is
more than that recommended,
do not conduct a pump down.
In this case use another refrig-
erant collecting system.
AUTO ADD PUMP DOWN
S005
IC
001
The S005 (PUMP DOWN) button is located at
the centre right of the outdoor unit PCB, as
shown in the figure at left.
103
GB
FR
DE
IT
PT
GR
ES
2007/07/25 13:21:54 2007/07/25 13:21:54