Drain Pump Control - Fujitsu ABYG18KRTA Service Manual

7-9. Drain pump control

¢ Drain control for cooling operation
 During the compressor in operation
• Triggering condition
The thermostat is turned on during cooling or dry mode.
• Operation details
The drain pump is turned on.
• Release condition
– The thermostat is turned off.
Refer to "When the compressor is not in
– The compressor is stopped.
Refer to "When the compressor is not in
– The operation is switched to heating mode.
Refer to "When the compressor is not in
– The float switch is turned on.
Refer to "Overflow
– The compressor is stopped by Anti-freezing control.
Refer to "The compressor is stopped by Anti-freezing
lease.
 When the compressor is not in operation
• Triggering condition
– The thermostat is turned off.
– The compressor is stopped.
– The operation is switched to heating mode.
– The float switch is turned off.
• Operation details
– Count 180 minutes.
– Start drain pump intermittent operaion.
Drain pump
• Release condition
– 3 minutes drain pump operation is finished after 180 minutes count.
– The operation is switched to cooling or dry mode.
Refer to "During the compressor in
– The float switch is turned on.
Refer to "Overflow
• Operation after release
The drain pump is turned off and the air conditioner operate according the settings.
7-9. Drain pump control
operation" for the operation after release.
operation" for the operation after release.
operation" for the operation after release.
control" for the operation after release.
3 min 3 min
On
Off
Trigger point 10 min
(0 min)
operation" for the operation after release.
control" for the operation after release.
- (04-34) -
control" for the operation after re-
3 min
60 min
3 min
180 min
7. Various control