GIRBAU EH020 Operating Instructions Manual page 12

Sequence of starting a program is the same for all vended controls with the Profit Plus
control. Start signal activated by satisfying vend price, signal is sent to door lock to start
locking process and to drain valve causing valve to close.
Door lock normally open: after the lock has received a start signal, a 30 second delay
time is started, during this time the drum rotation and water inlet operate at short
impulses and door remains unlocked. Anytime during this period, the operator can open
the door without losing vend. At the end of the 30 seconds the door will lock and the
cycle time starts.
Door lock normally closed; after lock has received a start signal the door lock starts a
timed count down of 30 seconds during which time the door can be opened and closed
without losing the vend. At the end of the 30 seconds the door will lock, if handle is in
latched position, and cycle time starts. If door handle is left in open position the washer
will go into a door alarm mode, move handle to latched position and cycle will start.
Note: All microprocessor controls will not allow door to be opened if washer still
has water in drum. Level control needs to read empty prior to door unlocking.
Unbalance switch control – EH soft mount models only
After starting the spin (extract), the inner tub moves during the distribution of linen. At
any time the inner drum moves in excess and the balance switch is activated, the drum
will stop, rotate back and forth to redistribute the linen and retry the extraction.
If there's still unbalance and the balance switch is activated a third time the washer will
end cycle and after the door unlocks, the control will show End/bAL.
Unbalance impedance – All VFD drive models
All washers that use inverter drive systems (VFD) have what we call an impedance
unbalance. This is different than a switch control in that when the micro receives a high
current signal from the VFD, it will hold the power output to motor at a constant level until
the micro signals that current levels are normal.
At that time the increase of speed is resumed. If the current levels remain out of
sequence then the washer will finish the time and end cycle. This means that the washer
could complete cycle at less than normal spin speed.
This anomaly is caused by an inconsistent linen load;
Example would be a heavy quilt and all other items sheets, when items separate in
drum, it takes more motor power to lift the quilt than the sheets, causing a motor
imbalance.
Water valves
We list water valves for sole purpose of explaining the operation when filling. In the CGI
equipment when filling, washer uses a thermistor to control which valve opens.
Example: program calls for 140F water, this signals control to open hot valve only until
the thermistor temperature is satisfied. At that time the hot fill valve closes and the cold
valve opens. The washer will continue fill by alternating hot and cold valves until level
and temperature is reached.
This means that only the hot valve or cold valve is open at any given time never at same
time.
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