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also regulates the oil heater while the compressor is off, and the hot gas bypass valve, if
installed.
The PIC can be interfaced with the Carrier Comfort Network (CCN) if desired. It can
communicate with other PIC-equipped chillers and other CCN devices.
The PIC consists of 3 modules housed inside the 3 major components. The component
names and the control voltage contained in each component are listed below (also see Table 1):
• control center
– all extra low-voltage wiring (24 v or less)
• power panel
– 230 or 115 v control voltage (per job requirement)
– up to 600 v for oil pump power
• starter cabinet
– machine power wiring (per job requirement)
Processor Module (PSIO)
The PSIO is the brain of the PIC. This module contains all of the operating software needed
Click here for Table 1 — Major PIC Components and Panel Locations