Carrier 17 - Page 9

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LEGEND

TXV — Thermostatic Expansion Valve

Liquid

Liquid/Vapor

Vapor

*The FA compressor has a water cooled oil cooler.

Fig. 4 — Refrigerant, Motor Cooling, and Oil Cooling Cycles (19EX Shown)

Main Page

Safety Considerations1
Table of Contents2
Cooler8
Condenser8
Motor-Compressor8
Control Center8
Motor Starter8
Utility Vessel8
Refrigeration Cycle8
Motor/Oil Refrigeration Cooling Cycle (19Ex Chillers)8
Cycle10
Details10
Open-Drive Machines (17 Series Lubrication Cycle12
Cycle12
Summary12
Details12
Starters12
Controls12
Deﬁnitions12
General12
PIC System Components14
Processor Module (Psio)14
Starter Management Module (Smm)14
Local Interface Device (Lid)14
6-Pack Relay Board14
8-Input Modules14
Oil Heater Contactor (1C)14
Oil Pump Contactor (2C)14
HOT GAS BYPASS CONTACTOR RELAY (3C) (Optional)14
Oil Auxiliary Relay (4C)14
Oil Auxiliary Relay (4C20
LID Operation and Menus21
General21
Alarms and Alerts21
Lid Default Screen Menu Items22
Menu Structure22
To View or Change Point Status22
Menu Structure23
Override Operations25
To View or Change Time Schedule Operation25
To View and Change Set Points26
Service Operation26
PIC System Functions35
Capacity Control35
Entering Chilled Water Control35
Proportional Bands and Gain35
Demand Limiting35
Machine Timers35
Occupancy Schedule35
Safety Controls35
Shunt Trip36
Default Screen Freeze36
Motor Cooling Control (Hermetic Motors Only)36
Auxiliary Oil Pump Control (Open-Drive Machines Only)36
Shaft Seal Oil (Open Drive Machines Only)36
Ramp Loading Control36
Capacity Override36
High Discharge Temperature Control36
Oil Sump Temperature Control38
Oil Cooler38
Remote Start/Stop Controls38
Spare Safety Inputs38
Spare Alarm Contacts38
Condenser Pump Control39
Condenser Freeze Prevention39
Tower-Fan Relay39
Auto. Restart after Power Failure39
Water/Brine Reset39
Demand Limit Control Option40
Surge Prevention Algorithm40
Surge Protection40
Lead/Lag Control40
Common Point Sensor Installation41
Machine Communication Wiring41
Lead/Lag Operation41
Load Balancing41
Faulted Chiller Operation42
Load Balancing42
Auto. Restart after Power Failure42
Ice Build Control42
Ice Build Initiation42
Termination of Ice Build42
Start-Up/Recycle Operation43
Temperature Control During Ice Build43
Termination of Ice Build43
Return to Non-Ice Build Operations43
Attach to Network Device Control43
Attaching to Other Ccn Modules43
Service Operation44
To Log on44
To Log off44
Holiday Scheduling44
Start-Up/Shutdown/Recycle Sequence45
Local Start-Up45
Shutdown Sequence46
Automatic Soft Stop Amps Threshold46
Chilled Water Recycle Mode46
Safety Shutdown46
Before Initial Start-Up47
Job Data Required47
Equipment Required47
Using the Utility Vessel and Pumpout System47
Remove Shipping Packaging47
Open-Drive Motor Electrical Connection47
Open-Drive Motor Auxiliary Devices48
Open Oil Circuit Valves48
Tighten All Gasketed Joints and Guide Vane Shaft Packing48
Check Machine Tightness48
Refrigerant Tracer48
Leak Test Machine48
Standing Vacuum Test49
Machine Dehydration51
Inspect Water Piping52
Check Optional Pumpout Compressor Water Piping52
Check Relief Devices52
Inspect Wiring52
Check Insulation Resistance52
Carrier Comfort Network Interface53
Check Starter54
Oil Charge54
Power up the Controls and Check the Oil Heater54
Software Version54
Set up Machine Control Conﬁguration55
Input the Design Set Points55
Input Service Conﬁgurations55
Password55
Input Time and Date55
Change Lid Configuration if Necessary55
Modify Controller Identification if55
Input Equipment Service Parameters if55
Necessary56
Modify Equipment Configuration if56
Check Voltage Supply56
Perform an Automated Control Test56
Check Pumpout System Controls and Optional Pumpout Compressor57
High Altitude Locations57
Charge Refrigerant into Machine57
Initial Start-Up58
Manual Operation of the Guide Vanes58
Dry Run to Test Start-Up Sequence58
Check Rotation (Open-Drive Motor)58
Open Drive Motor Initial Start-Up58
Check Rotation (Hermetic Motor)59
Check Oil Pressure and Compressor Stop59
Calibrate Motor Current Demand Setting60
To Prevent Accidental Start-Up60
Hot Alignment Check for Open-Drive Machines60
Doweling for Open-Drive Machines60
Check Machine Operating Condition60
Instruct the Customer Operator60
Cooler-Condenser60
Utility Vessel60
Pumpout System60
Motor Compressor Assembly60
Operating Instructions61
Initial Start-Up61
Prepare the Machine for Start-Up61
To Start the Machine61
Check the Running System61
To Stop the Machine61
After Limited Shutdown61
Extended Shutdown62
After Extended Shutdown62
Cold Weather Operation62
Manual Guide Vane Operation62
Refrigeration Log62
Procedures64
Operating the Optional Pumpout Compressor64
To Read Refrigerant Pressures64
Transferring Refrigerant from Normal Operation into the Utility Vessel66
Transferring Refrigerant from Normal Operation into the Cooler/Condenser/Compressor Section66
Return Refrigerant to Normal Operating Conditions66
General Maintenance67
Procedures67
Refrigerant Properties67
Adding Refrigerant67
Removing Refrigerant67
Refrigerant Leak Testing67
Leak Rate67
Test after Service, Repair, or Major Leak67
Repair the Leak, Retest, and Apply Standing Vacuum Test67
Checking Guide Vane Linkage67
Contact Seal Maintenance (Open-Drive Machines)68
Seal Disassembly68
Seal Reassembly68
Machine Alignment (Open-Drive Machines)70
Alignment Methods70
Preliminary Alignment70
Near Final Alignment70
Hot Alignment Check70
Preliminary Alignment71
Near Final Alignment71
Near Final Alignment74
Hot Alignment Check74
Scheduled Maintenance76
Service Ontime76
Inspect the Control Center76
Check Safety and Operating Controls Monthly76
Changing Oil Filter76
19Ex Compressors76
Fa Style Compressors76
Oil Speciﬁcation77
Oil Changes77
Refrigerant Filter77
Oil Reclaim Filter77
Inspect Refrigerant Float System77
Inspect Relief Valves and Piping77
Coupling Maintenance (Open-Drive Machines)77
Procedure77
Motor Maintenance (Open-Drive Machines)78
Cleanliness78
Sleeve Bearings79
Open-Drive Motor Handling/Rigging81
Open-Drive Motor Storage81
Compressor Bearing and Gear Maintenance81
Inspect the Heat Exchanger Tubes81
Cooler81
Water Leaks82
Water Treatment82
Inspect the Starting Equipment82
Check Pressure Transducers82
Pumpout System Maintenance82
Optional Pumpout Compressor Oil Charge82
Pumpout Safety Control Settings83
Ordering Replacement Chiller Parts83
Open-Drive Motor Renewal Parts83
Troubleshooting Guide83
Overview83
Checking the Display Messages83
Checking Temperature Sensors83
Resistance Check83
Voltage Drop83
Check Sensor Accuracy84
Dual Temperature Sensors84
Checking Pressure Transducers84
Oil Differential Pressure/Power Supply84
Troubleshooting Transducers85
Transducer Replacement85
Control Algorithms Checkout Procedure85
Control Test85
Troubleshooting Guide86
Control Modules95
Notes on Module Operation95
Processor Module (PSIO)95
Inputs95
Outputs95
Starter Management Module (SMM)96
Options Modules (8-Input)96
Replacing Defective Processor Modules96
Installation of New Psio Module97
17/19Ex Physical Data and Wiring Schematics97
Compressor Fits and Clearances102
Index115

Carrier 17 - Page 9

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