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)

Click here for Table 1 — Major PIC Components and Panel Locations

Processor Module (PSIO)

The PSIO is the brain of the PIC. This module contains all of the operating software needed

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Carrier PC211 specifications Processor Module Psio