CVHH-SVX001G-EN
91
Figure 56.
Sequence of operation: ice building: running to ice building
Ice Making Command:
1. Front Panel
2. Tracer
3. External Input
Evap Leaving
Water Temp Rises
Above the Diff To
Stop
Ice Making
Command
Withdrawn
Running
Running
Running
(Ice Building)
Running (Ice to Normal
Transition)
Running
Ice to Normal Transition Timer
(0–10 min)
Head Relief Request Relay
Delay (1–60 min)
Head Relief Request Relay
Delay (1–60 min)
Open IGV at Max Rate/
Max AFD Frequency
Ignore Softloading and
Set CLS=100%
Energize Ice Building
Relay
Close IGV/Min AFD
Frequency
De-Energize Ice Building
Relay
Modulate IGV/AFD
for LWT control
De-Energize Head Relief
Request Relay
Energize Head Relief
Request Relay
Enforce All Limits and Running Mode Diagnostics
Содержание CVHH CenTraVac
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