Carrier 17/19EX - Manual (Page 180)

Safety Devices and Procedures
Electrical disconnects, relief device inspection, and handling refrigerant.
Check Operator Knowledge
Start, stop, and shutdown procedures, safety and operating controls, refrigerant and oil
charging, and job safety.
Review the Start-Up, Operation, and Maintenance Manual
Operating Instructions
Operator Duties
1. Become familiar with refrigeration machine and related equipment before operating the
machine.
2. Prepare the system for start-up, start and stop the machine, and place the system in a
shutdown condition.
3. Maintain a log of operating conditions and document any abnormal readings.
4. Inspect the equipment, make routine adjustments, and perform a control test. Maintain the
proper oil and refrigerant levels.
5. Protect the system from damage during shutdown periods.
6. Maintain the set point, time schedules, and other PIC functions.