temperature being le s s tha n the ICE BUILD SETPOINT , op ening of the REMOTE CONT A CT
inputs from an ice level ind icator, or reaching the end of the Ice Build Time Sch edule.
Ice Build Initiation
The Ice Build T ime Schedule pr ovides the mea ns for activat ing ice build. The ice build t ime
table is named OCCPC02S.
If the Ice Build Time Schedule is OCCUPIED and the ICE BUILD OPTION is EN ABLED, then
ice build is a ctive and the following event s automatically take place (u nless overridden by a
higher authority CCN device):
1. Force CHILLER START/STOP to START.
2. Force WATER/BRINE CONTROL POINT to the ICE BUILD SETPOINT.
3. Remove any force (Auto) on the ACTIVE DEMAND LIMIT.
Note: Items 1-3 (shown abo ve) shall not occur i f the chiller is conf igured and operat ing as a lag
or standby chiller for lead /lag and is actively cont rolled by a lead chille r . T he le ad chiller
communicates the ICE BUILD SETPOINT, desired CHILLER START/STOP state, and
ACTIVE DEMAND LIMIT to the lag or standby chiller as required for ice build, if config-
ured to do so.