ITV SPIKA MS 1000, Service Manual

Page: 15 / 42

SERVICE MANUAL SPIKA SERIES
15
Harvest
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)
*LE1 on
The harvest 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 re-initiated.
time description time
t1 Continuous signal time for water level
5”
t2 Continuous signal time for ice thickness
10”
t3 Open curtain time to activate full storage indication
30”
t4 Start-up timing time
30”
t5 Operation launching maximum time
180”
t6 Draining time during operation launching 2
0”
t7 Production minimum time
120’’
t8 Water inlet valve e/w time during production
30”
t9 Water inlet valve e/w timeout
180”
t10 Production maximum timeout
3600’’
t11 Pump start-up delay time
30”
t12 Draining time at cleaning cycle
60”
t13 Retry time due to water inlet valve e/w timeout
3600’’
t14 Upper unit change 60
’’
t15 Maximum time to reset due to security pressure switch
600’’
t16 Hot gas delay with SW6 ON
30’’
t17 Purge time during harvest with SW6 ON
10’’
t18 Time for suction alarm with same temperature
60”
t19 Time delayed for compressor start with SW4 ON
360”
t20 Start compressor time
5”
T1 Minimum temperature in the suction probe (EAL) -10ºC