Carrier 23xl Start-Up, Operation And Maintenance Instructions Manual page 3

Power Up the Controls and
Check the Oil Heater . . . . . . . . . . . . . . . . . . . . . . . . . . 60
• SOFTWARE VERSION
Software Configuration . . . . . . . . . . . . . . . . . . . . . . . . . 60
Input the Design Set Points . . . . . . . . . . . . . . . . . . . . . 60
Input the Local Occupied Schedule
(OCCPC01S) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Input Service Configurations . . . . . . . . . . . . . . . . . . . . 60
• PASSWORD
• INPUT TIME AND DATE
• CHANGE CVC CONFIGURATION IF NECESSARY
• TO CHANGE THE PASSWORD
• TO CHANGE THE CVC DISPLAY FROM ENGLISH
TO METRIC UNITS
• MODIFY CONTROLLER IDENTIFICATION
IF NECESSARY
• INPUT EQUIPMENT SERVICE PARAMETERS
IF NECESSARY
• MODIFY EQUIPMENT CONFIGURATION
IF NECESSARY
Perform A Control Test . . . . . . . . . . . . . . . . . . . . . . . . . . 63
• COOLER AND CONDENSER PRESSURE TRANS-
DUCER AND WATERSIDE FLOW DEVICE CALI-
BRATION
Check Optional Pumpout System
Controls and Compressor. . . . . . . . . . . . . . . . . . . . . 63
High Altitude Locations . . . . . . . . . . . . . . . . . . . . . . . . . 63
Charge Refrigerant Into Chiller . . . . . . . . . . . . . . . . . . 64
• CHILLER EQUALIZATION WITHOUT
PUMPOUT UNIT
• CHILLER EQUALIZATION WITH PUMPOUT UNIT
• TRIMMING REFRIGERANT CHARGE
INITIAL START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65,66
Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Dry Run to Test Start-Up Sequence . . . . . . . . . . . . . 65
Check Oil Pressure and Compressor Stop . . . . . . 65
To Prevent Accidental Start-Up. . . . . . . . . . . . . . . . . . 66
Check Chiller Operating Condition . . . . . . . . . . . . . . 66
Instruct the Customer Operator . . . . . . . . . . . . . . . . . 66
• COOLER-CONDENSER
• OPTIONAL PUMPOUT STORAGE TANK AND
PUMPOUT SYSTEM
• MOTOR COMPRESSOR ASSEMBLY
• MOTOR COMPRESSOR LUBRICATION SYSTEM
• CONTROL SYSTEM
• AUXILIARY EQUIPMENT
• DESCRIBE CHILLER CYCLES
• REVIEW MAINTENANCE
• SAFETY DEVICES AND PROCEDURES
• CHECK OPERATOR KNOWLEDGE
• REVIEW THE START-UP OPERATION,
AND MAINTENANCE MANUAL
OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . 66-68
Operator Duties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Prepare the Chiller for Start-Up . . . . . . . . . . . . . . . . . 66
To Start The Chiller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Check the Running System . . . . . . . . . . . . . . . . . . . . . 66
To Stop the Chiller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
After Limited Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . 67
Preparation for Extended Shutdown . . . . . . . . . . . . 67
After Extended Shutdown . . . . . . . . . . . . . . . . . . . . . . . 67
Cold Weather Operation. . . . . . . . . . . . . . . . . . . . . . . . . 67
Slide Valve Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Refrigeration Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
PUMPOUT AND REFRIGERANT TRANSFER
PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69-71
Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
CONTENTS (cont)
Page
Operating the Optional Pumpout Unit . . . . . . . . . . . 69
• TO READ REFRIGERANT PRESSURES
Chillers with Isolation Valves. . . . . . . . . . . . . . . . . . . . 70
• TRANSFER ALL REFRIGERANT TO CHILLER
CONDENSER VESSEL
• TRANSFER ALL REFRIGERANT TO CHILLER
COOLER VESSEL
• RETURN CHILLER TO NORMAL OPERATING
CONDITIONS
Chillers With Storage Tanks . . . . . . . . . . . . . . . . . . . . . 71
• TRANSFER REFRIGERNT FROM PUMPOUT
STORAGE TANK TO CHILLER
• TRANSFER REFRIGERANT FROM CHILLER TO
PUMPOUT STORAGE TANK
GENERAL MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . 72
Refrigerant Properties . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Adding Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Removing Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Adjusting the Refrigerant Charge . . . . . . . . . . . . . . . 72
Refrigerant Leak Testing . . . . . . . . . . . . . . . . . . . . . . . . 72
Refrigerant Leak Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Test After Service, Repair, or Major Leak . . . . . . . . 72
• REFRIGERANT TRACER
• TO PRESSURIZE WITH DRY NITROGEN
Repair the Leak, Retest, and Apply
Standing Vacuum Test . . . . . . . . . . . . . . . . . . . . . . . . 72
Trim Refrigerant Charge. . . . . . . . . . . . . . . . . . . . . . . . . 72
WEEKLY MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . 73
Check the Lubrication System . . . . . . . . . . . . . . . . . . 73
SCHEDULED MAINTENANCE . . . . . . . . . . . . . . . . 73-76
Service Ontime. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Inspect the Control Panel . . . . . . . . . . . . . . . . . . . . . . . 73
Check Safety and Operating Controls
Monthly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Changing Oil and Oil Filter . . . . . . . . . . . . . . . . . . . . . . 73
Oil Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Oil Separator Coalescer . . . . . . . . . . . . . . . . . . . . . . . . . 74
Refrigerant Filter/Drier . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Refrigerant Strainers (TC Frame 1 and
2 Chillers Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Inspect Refrigerant Float System . . . . . . . . . . . . . . . 74
Inspect Relief Valves and Piping . . . . . . . . . . . . . . . . 74
Compressor Bearing Maintenance . . . . . . . . . . . . . . 75
Compressor Rotor Check . . . . . . . . . . . . . . . . . . . . . . . 75
Inspect the Heat Exchanger Tubes . . . . . . . . . . . . . . 75
• COOLER
• CONDENSER
Water Leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Water Treatment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Inspect the Starting Equipment . . . . . . . . . . . . . . . . . 75
Check Pressure Transducers. . . . . . . . . . . . . . . . . . . . 76
Optional Pumpout System Maintenance. . . . . . . . . 76
• OPTIONAL PUMPOUT COMPRESSOR
OIL CHARGE
• OPTIONAL PUMPOUT SAFETY
CONTROL SETTINGS
Ordering Replacement Chiller Parts . . . . . . . . . . . . . 76
TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . 76-103
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Checking the Display Messages. . . . . . . . . . . . . . . . . 77
Checking Temperature Sensors . . . . . . . . . . . . . . . . . 77
• RESISTANCE CHECK
• VOLTAGE DROP
• CHECK SENSOR ACCURACY
• DUAL TEMPERATURE SENSORS
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