To Prevent Accidental Start-Up

The PIC can be set up so that start-up of the unit is more difficult than just pressing the LOCAL or CCN softkeys during machine service or when necessary. By accessing the Status01 table, and highlighting the chiller Start/Stop line, the value can be overridden to stop by pressing SELECT and then the STOP and ENTER softkeys. ‘‘SUPVSR’’ will appear after the value. When attempting to restart, remember to release the override. The default machine message line will also state that the Start/Stop has been set to ‘‘Start’’ or ‘‘Stop’’ when the value is overridden.

Check Machine Operating Condition

Check to be sure that machine temperatures, pressures, water flows, and oil and refrigerant levels indicate that the system is functioning properly.

Instruct the Customer Operator

Check to be sure that the operator(s) understand all operating and maintenance procedures. Point out the various machine parts and explain their function as part of the complete system.

Cooler-Condenser

Float chamber, relief devices, refrigerant charging valve, temperature sensor locations, pressure transducer locations, Schrader fittings, waterboxes and tubes, and vents and drains.

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Carrier PC211 specifications Check Machine Operating Condition, Cooler-Condenser