Carrier 19XL - Manual (Page 177)

Review Maintenance
Scheduled, routine, and extended shutdowns, importance of a log sheet, importance of water
treatment and tube cleaning, and importance of maintaining a leak-free machine.
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.