SERVICE MANUAL
SPIKA
15
5.1.
Initial Start-up
It is carried out at machine work start in following cases (being all outputs switched off):
- when machine is connected to power supply.
- when the switch is turned to the ICE position
- after a stop due to full storage
During
start-up
time
t4
the
pump
(B)
and
the
drain
valve
(EP)
are
activated.
Subsequently, B and EP are closed and the water inlet valve (EW) is opened until the level sensor (NW) indicates
that the storage reservoir is filled with water. At this point, the production phase starts.
Please note: If at this stage the curtain (MC) is open, the indicated machine status is switched to full storage (full).
Production
Following outputs are activated:
- Compressor (C).
- Pump (B). It is activated with delay time t11.
- Water inlet valve (EW). It is kept active during time t8, beginning with the start of B.
This phase is maintained until the thickness detection sensor gives a signal (which is maintained during time t2).
At this stage, the operation launching phase starts.
Please note: during this time the opening of the curtain (MC) has no consequences.
Operation launching
Outputs:
- Compressor (C). It is still in operation.
- Hot gas valve (GC). It is active during the whole operation launching time.
- Pump (B) and wast water valve (EP) are active during time t6
- Water inlet valve (EW) is activated when time t6 is over (when the pump is stopped)
The operation launching ends when the ice sheet falls down and the curtain micro contact (MC) is activated.
Two possibilities:
1) MC is active during a time less than t3 when the MC signal stops, the production phase will start.
2) MC is active during a time more than t3 machine will be stopped due to full storage (all outputs are switched
off / LED LE3 continuously switched on). When the curtain (MC) is closed again, the initial start-up phase will be
