Extraction - Electrolux FLE120 Service Manual

22
17 9108
12
Page
Type Edition

Extraction

The section below and the diagram on the next page refer to 220 litre
machines. In 120 litre machines, there is no clutch between the
motors.
Relays K9 (13), low extraction, and K10 (14), high extraction, control the
connections to the extract motor windings. The following conditions must
be met for these relays to be energised:
• The door must be closed and locked, and the programmer knob must be
in position I (see "Power supply and start" sequence).
• Row M, stop (1) must not be programmed.
• The out-of-balance switch must not have tripped (breaks
K53:51-52 (2) power supply).
• Row K, drain (3) must be programmed.
When row K (3) switches to position 1-3 and reverser contact 3b (8) is in
the right position (see "Distribution speed" sequence), relay coil K31 (15) is
energised. As a result:
• The drain valve opens.
• K31:43-44 (18) closes, relay coil K3 (22) is energised and connects the
wash motor distribution speed windings.
• Relay K63 (9) is energised and after about 30 seconds closes relay
contact 12-13 (9).
If row H (5), extraction, is programmed:
• Relay coil K9 (13) is energised and connects the extract motor windings
for low extraction.
• K9:11-12 (20) cuts the power to relay K3 (22).
• When the drum speed exceeds approx. 310 rpm (220 litre models), the
speed control B31 (17) switches to position 1-3. The clutch Y70 (23)
which connects the two motors is de-energised, disconnecting the wash
motor from the extract motor.
After about 60 seconds low extraction, relay K61 (10) switches to position
12-13. As a result:
• Relay coil K9 (13) cuts out, relay coil K10 (14) is energised and
connects the extract motor high extraction windings.
• When relay coil K9 (13) is de-energised, K9:11-12 (20) closes. Since
the speed control B31 (17) contact is in position 1-3, this energises relay
coil K3 (22) and restarts the wash motor at distribution speed. This is
designed to prevent the wash motor bearings being damaged by
vibration during extraction.
12. Function Sequences
Service
Manual