Terminal block connections are provided on the options modules. All sensor inputs are field wired and installed. Options module number 1 can be factory or field-installed. Options module 2 is shipped separately and must be field installed. For installation, refer to the unit or field wiring diagrams. Be sure to address the module for the proper module number (Figure 45) and to configure the chiller for each feature being used.

Click here for Figure 45 — Options Module

Replacing Defective Processor Modules

The replacement part number is printed in a small label on front of the PSIO module. The

model and serial numbers are printed on the unit nameplate located on an exterior corner post. The proper software is factory-installed by Carrier in the replacement module. When ordering a replacement processor module (PSIO), specify complete replacement part number, full unit model number, and serial number. This new unit requires reconfiguration to the original machine data by the installer. Follow the procedures described in the Set Up Machine Control Configuration section.

CAUTION ! CAUTION

Electrical shock can cause personal injury. Disconnect all electrical power before servicing.

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Carrier PC211 specifications Click here for Options Module