Carrier 19DG - Manual (Page 8)

INSTRUCTING THE CUSTOMER OPERATOR
Be sure the operator carefully reads and under­
stands the 19DG Operating and Maintenance
Instructions.
Point out the following machine components;
explain their function and that of the system in
which they are used.
Compressor-Motor-Transmission Assembly
1. Guide Vanes, Vane Motor and Linkage
2. Refrigerant-Cooled Motor
3. Transmission
Unishell Cooler-Condenser
1. Float Chamber, Sight Glasses
2. Thermowells
3. Rupture Disc
4. Refrigerant Charging Valve
Purge System
1. Importance of Proper Operation
2. Valves and System Operation
3. Sight Glasses, Gage
Lubrication System
1. Oil Pump, Cooler, Filter
2. Solenoid Valve, Plug Cock
3. Heater, Thermostat, Temperature Gage
4. Pressure Regulating Valve
5. Oil Level, Temperature
Control System
1. Manual Switches (ON-STOP, START, OIL-PUMP)
2. Gages and Lights
3. Safety Controls
4. Operating Controls
5. Auxiliary and Special Controls
Auxiliary Equipment
1. Starter(s)
2. Pumps
3. Cooling Tower
Describe Refrigeration Cycle
Review Maintenance
1. Scheduled
2. Extended Shutdown
3. Importance of Log Sheet
4. Importance of Water Treatment
Check Operator Knowledge
1. Start-Stop Procedure
2. Safety and Operating Controls
Discuss Carrier Service
1. Availability
2. Method of Ordering Parts
Review Operating and Maintenance Instructions
For replacement items use Carrier Specified Parts
Manufacturer reserves the right to change any product specifications without notice.
C A R R I E R A I R C O N D I T I O N I N G C O M P A N Y • S Y R A C U S E , N E W Y O R K
Tab15 Form 19DG-3SS Supersedes 19DG-2SS Printed in U.S.A. 5-71 Codes MA and ML Catalog No. 531-914