Table of Contents
Advertisement
S S t t a a r r t t - - u u p p a a n n d d S S h h u u t t - - d d o o w w n n
Figure 63. Sequence of operation: ice making: running to ice making
Ice Making Command:
1. Front Panel
2. Tracer
3. External Input
Running
(Ice Building)
Open IGV at Max Rate/
Max AFD Frequency
Ignore Softloading and
Set CLS to 100%
Energize Ice Building
Relay
Head Relief Request Relay Delay
(1 to 60 minutes)
Enforce All Limits and Running Mode Diagnostics
80
Running
Head Relief Request Relay Delay
Energize Head Relief
Request Relay
Ice Making
Command
Withdrawn
Running (Ice to Normal
Transition)
Ice to Normal Transition Timer
(0 to 10 minutes)
Close IGV Min AFD
Frequency
De-Energize Ice Building
Relay
(1 to 60 minutes)
Evaporator Leaving
Water Temperature
Rises Above the
Differential to Stop
Running
Modulate IGV/AFD
for LWT Control
De-Energize Head Relief
Request Relay
Running
CDHF-SVX01N-EN
Advertisement
Table of Contents
