Carrier 19XR - V;I Inputs; Outputs

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STAT

COMM THERMISTORS

DIFF PRESSURE

PRESSURE

SW2

V/I INPUTS

SIO

ANALOG OUT

J11

DISCRETE

OUTPUTS

J12

DISCRETE

OUTPUTS

24 VAC

SIO

Fig. 37 — Chiller Control Module (CCM)

INTEGRATED STARTER MODULE

J9 J8 J7

COM STAT

J1 FUSE J2 J3-1 J3-2 J3-3 J4 J5 J6

Fig. 38 — Integrated Starter Module (ISM)

Main Page

Safety Considerations1
Table of Contents2
Introduction4
Abbreviations and Explanations4
Chiller Familiarization5
Chiller Information Plate5
System Components5
Cooler5
Condenser5
Motor-Compressor5
Control Panel5
Front/Rear View6
Factory-Mounted Starter (Optional)7
Storage Vessel (Optional)7
Refrigeration Cycle7
Motor and Lubricating Oil7
- Cooling Cycle7
Lubrication Cycle8
Summary8
Details8
Oil Reclaim System8
Starting Equipment8
Unit-Mounted Solid-State Starter9
- (Optional)9
Unit-Mounted Wye-Delta Starter10
- (Optional)10
Controls10
Deﬁnitions10
- Analog Signal10
- Discrete Signal10
General10
PIC II System Components10
- Chiller Visual Controller (CVC)12
- Integrated Starter Module (Ism)12
- Chiller Control Module (CCM)12
- Oil Heater Contactor (1C)12
- Oil Pump Contactor (2C)12
- HOT GAS BYPASS CONTACTOR RELAY (3C) (Op12
- Control Transformers (T1, T2)12
CVC Operation and Menus14
- General14
- Alarms and Alerts14
- CVC Menu Items14
- BASIC CVC OPERATIONS (Using the Softkeys)14
- To View Status15
- Override Operations15
- Alarms and Alerts17
- Time Schedule Operation19
- To View and Change Set Points20
- Service Operation20
- Alarms and Alerts21
PIC II System Functions32
- Capacity Control32
- Ecw Control Option32
- Control Point Deadband32
- Diffuser Control32
- Proportional Bands and Gain32
- Demand Limiting32
- Chiller Timers32
- Occupancy Schedule33
Safety Controls33
Shunt Trip (Option)35
Default Screen Freeze35
Ramp Loading35
Capacity Override35
High Discharge Temperature Control35
Oil Sump Temperature Control35
Oil Cooler36
Remote Start/Stop Controls36
Spare Safety Inputs36
Spare Safety Alarm Contacts36
Refrigerant Leak Detector36
Condenser Pump Control36
Condenser Freeze Prevention37
Tower Fan Relay Low and High37
Auto. Restart after Power Failure37
Water/Brine Reset37
- Reset Type37
Demand Limit Control Option38
Surge Prevention Algorithm38
Surge Protection39
Lead/Lag Control39
- Common Point Sensor Installation39
- Chiller Communication Wiring39
- Lead/Lag Operation39
- Faulted Chiller Operation40
- Load Balancing41
- Auto. Restart after Power Failure41
Ice Build Control41
- Ice Build Initiation41
- Start-Up/Recycle Operation41
- Temperature Control During41
- Ice Build41
- Termination of Ice Build42
- Return to Non-Ice Build Operations42
Attaching to Other Ccn Modules42
Attach to Network Device Control42
Service Operation43
- To Access the Service Screens43
- To Log out of Network Device43
- Holiday Scheduling43
- Controls43
Start-Up/Shutdown/Recycle44
- Sequence44
Local Start-Up44
Shutdown Sequence45
Automatic Soft Stop Amps Threshold45
Chilled Water Recycle Mode45
Safety Shutdown45
Before Initial Start-Up46
Job Data Required46
Equipment Required46
Using the Optional Storage Tank and Pumpout System46
Remove Shipping Packaging46
Open Oil Circuit Valves46
Tighten All Gasketed Joints and Guide Vane Shaft Packing46
Check Chiller Tightness46
Refrigerant Tracer46
Leak Test Chiller48
Standing Vacuum Test48
Chiller Dehydration51
Inspect Water Piping51
Check Optional Pumpout Compressor51
- Water Piping51
Check Relief Valves51
Inspect Wiring51
Carrier Comfort Network Interface52
Check Starter52
- Mechanical Starter53
- Benshaw, Inc. Redistart Micro Solid-State Starter53
Oil Charge53
Password54
If Necessary55
Perform a Control Test56
- Chiller Equalization Without a57
- Initial Start-Up58
- Initial Start-Up59
To Stop the Chiller60
- Procedures62
  - Procedures63
  - Transfer All Refrigerant to64
General Maintenance65
Weekly Maintenance66
- Oil Speciﬁcation67
- And Flow Devices68
Troubleshooting Guide69
Overview69
Checking the Display Messages69
Checking Temperature Sensors69
- Resistance Check69
- Voltage Drop69
- Check Sensor Accuracy70
- Dual Temperature Sensors70
Checking Pressure Transducers70
- Cooler and Condenser Pressure70
- Transducer Replacement70
Control Algorithms Checkout Procedure70
Control Test71
Control Modules80
- RED LED (Labeled as STAT)80
Notes on Module Operation80
Chiller Control Module (CCM)81
ISM Integrated Starter Module81
Replacing Defective Processor Modules81
- INSTALLATION Solid-State Starters81
- V/I Inputs82
- Outputs82
- Scr Removal/Installation83
- SCR REMOVAL/INSTALLATION Physical Data84
Index100
Initial Start-Up Checklist for 19Xr Hermetic Centrifugal Liquid Chiller105

Carrier 19XR - V;I Inputs; Outputs

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