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AquaEdge 19XRV series
Carrier AquaEdge 19XRV series User Manual
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175
APPENDIX B — LEAD/LAG WIRING
19XRV Lead Lag Schematic Series
Cooler Flow
a19-1655
174
176
Table of Contents
Table of Contents
2
Safety Considerations
1
Table of Contents
2
Reset Type
3
Introduction
4
Cooler
5
Abbreviations and Explanations
5
Chiller Familiarization
5
Chiller Information Nameplate
5
System Components
5
Condenser
5
Motor-Compressor
5
Economizer
5
Control Panel
5
Variable Frequency Drive
5
Refrigeration Cycle
9
Motor and Lubricating Oil
9
Cooling Cycle
9
Vfd Cooling Cycle
11
Lubrication Cycle
11
Summary
11
Details
11
Oil Reclaim System
12
Primary Oil Recovery Mode
12
Secondary Oil Recovery Method
12
Bearings
12
Starting Equipment
13
Unit-Mounted VFD
13
Controls
18
Definitions
18
Analog Signal
18
Discrete Signal
18
General
18
PIC III System Components
18
International Chiller Visual Controller (ICVC)
18
Chiller Control Module (CCM)
18
Oil Heater Contactor (1C)
18
Oil Pump Contactor (2C)
18
Hot Gas Bypass Contactor Relay (3C)
19
Control Transformers (T1, T2)
21
Optional Transformer (T3)
21
Flow Detection
22
ICVC Operation and Menus
22
General
22
Alarms and Alerts
22
ICVC Menu Items
23
BASIC ICVC OPERATIONS (Using the Softkeys)
23
To View Status
27
Forcing Operations
27
Time Schedule Operation
28
To View and Change Set Points
28
Service Operation
29
PIC III System Functions
44
Capacity Control
44
Ecw Control Option
44
Control Point Deadband
44
Proportional Bands
44
Diffuser Control
46
Demand Limiting
46
Chiller Timers and Starts Counter
46
Occupancy Schedule
47
Safety Controls
47
Shunt Trip (Option)
47
Default Screen Freeze
47
Capacity Override
50
High Discharge Temperature Control
50
Compressor Bearing Temperature
50
Oil Sump Temperature and Pump Control
50
Ramp Loading
50
Rampdown
50
Oil Cooler
51
Remote Start/Stop Controls
51
Spare Safety and Spare Temperature Inputs
51
Alarm (Trip) Output Contacts
51
Kilowatt Output
52
Remote Reset of Alarms
52
Pump and Fan Control
52
Condenser Pump Control
52
Condenser Freeze Prevention
52
Evaporator Freeze Protection
52
Tower Fan Relay Low and High
52
Auto. Restart after Power Failure
53
Fast Power Source Transfers
53
Water/Brine Reset
53
Reset Type 2: Remote Temperature Reset
54
Surge Prevention
54
Hgbp Option =1
54
Hgbp Option =2
54
Surge Prevention Algorithm
54
Surge Protection
55
Head Pressure Reference Output
55
VFD Start-Up Speed Control
55
Lead/Lag Control
55
Common Point Sensor Usage and
56
Chiller Communication Wiring
56
Lead/Lag Operation
56
Faulted Chiller Operation
57
Load Balancing
58
Auto. Restart after Power Failure
58
Ice Build Control
58
Ice Build Initiation
58
Start-Up/Recycle Operation
59
Temperature Control During Ice Build
59
Termination of Ice Build
59
Return to Non-Ice Build Operations
59
Attach to Network Device Control
59
Attaching to Other Ccn Modules
59
Service Operation
60
To Access the Service Screens
60
To Log out of Network Device
60
Time Broadcast Enable
60
Holiday Scheduling
60
Daylight Saving Time Configuration
61
Start-Up/Shutdown/Recycle
61
Sequence
61
Local Start-Up
61
Shutdown Sequence
62
Automatic Soft Stop Amps Threshold
63
Chilled Water Recycle Mode
63
Safety Shutdown
64
Before Initial Start-Up
64
Job Data Required
64
Equipment Required
64
Using the Optional Storage Tank
64
And Pumpout System
64
Remove Shipping Packaging
64
Open Oil Circuit Valves
64
Oil Charge
64
Tighten All Gasketed Joints and
64
Refrigerant Tracer
67
Leak Test Chiller
67
Standing Vacuum Test
67
Chiller Dehydration
70
Inspect Water Piping
70
Check Optional Pumpout Compressor
70
Water Piping
70
Check Relief Valves
70
Identify the VFD
70
Identifying the Drive by Part Number
71
Input Power Wiring
71
Checking the Installation
71
Inspect Wiring
72
Ground Fault Troubleshooting
72
Carrier Comfort Network
72
Interface
72
Power up the Controls and
72
Check the Oil Heater
72
Software Version
73
Software Configuration
73
Input the Design Set Points
73
Input the Local Occupied Schedule
73
(Occpc01S)
73
Input Service Configurations
73
Password
73
Input Time and Date
73
Change ICVC Configuration if Necessary
73
To Change the Password
73
Input Equipment Service Parameters if Necessary
74
Verify Vfd Configuration and Change
74
Parameters if Necessary
74
Vfd Chiller Field Set up and Verification
74
Surge Prevention Configurations
75
Configure Diffuser Control if Necessary
77
Modify Equipment Configuration if Necessary
77
Perform a Control Test
77
Pressure Transducer Calibration
78
Check Optional Pumpout System
79
Controls and Compressor
79
High Altitude Locations
79
Charge Refrigerant into Chiller
79
Chiller Equalization Without Apumpout Unit
79
Chiller Equalization with Pumpout Unit
79
Trimming Refrigerant Charge
80
Initial Start-Up
80
Preparation
80
Check Motor Rotation
80
Check Oil Pressure and Compressor Stop
81
To Prevent Accidental Start-Up
81
Check Chiller Operating Condition
81
Instruct the Customer Operator
81
Cooler-Condenser
81
Optional Pumpout Storage Tank and
81
Motor Compressor Assembly
81
Motor Compressor Lubrication System
81
Control System
81
Auxiliary Equipment
81
To Stop the Chiller
82
After Limited Shutdown
82
Preparation for Extended Shutdown
82
After Extended Shutdown
82
Cold Weather Operation
82
Manual Guide Vane Operation
82
Refrigeration Log
82
Procedures
82
Preparation
84
Operating the Optional Pumpout Unit
84
Positive Pressure Chillers with Storage Tanks
84
Chillers with Isolation Valves
86
Distilling the Refrigerant
87
General Maintenance
87
Refrigerant Properties
87
Adding Refrigerant
88
Removing Refrigerant
88
Adjusting the Refrigerant Charge
88
Refrigerant Leak Testing
88
Leak Rate
88
Test after Service, Repair, or Major Leak
88
Testing with Refrigerant Tracer
88
Testing Without Refrigerant Tracer
88
To Pressurize with Dry Nitrogen
88
Repair the Leak, Retest, and Apply
88
Scheduled Maintenance
89
Service Ontime
89
Inspect the Control Panel
89
Check Safety and Operating Controls
89
Monthly
89
Changing Oil Filter
89
Oil Specification
90
Oil Changes
90
To Change the Oil
90
Refrigerant Filter
90
Oil Reclaim Filter
90
VFD Refrigerant Strainer
90
Inspect Refrigerant Float System
90
Inspect Relief Valves and Piping
91
Compressor Bearing and Gear
91
Maintenance
91
Inspect the Heat Exchanger Tubes
91
And Flow Devices
91
Cooler and Optional Flow Devices
91
Condenser and Optional Flow Devices
91
Water Leaks
92
Water Treatment
92
Inspect the VFD
92
Recalibrate Pressure Transducers
92
Optional Pumpout System Maintenance
92
Optional Pumpout Compressor Oil
92
Optional Pumpout Safety Control Settings
92
Ordering Replacement Chiller Parts
92
Troubleshooting Guide
93
Overview
93
Checking Display Messages
93
Checking Temperature Sensors
93
Resistance Check
93
Voltage Drop
93
Check Sensor Accuracy
93
Dual Temperature Sensors
93
Checking Pressure Transducers
93
Cooler Condenser Pressure Transducer
94
And Optional Waterside Flow Device
94
Transducer Replacement
94
Control Algorithms Checkout Procedure
94
Control Test
95
Control Modules
113
RED LED (Labeled as STAT)
113
Notes on Module Operation
113
Chiller Control Module (CCM)
113
V/I Inputs
114
Outputs
114
Replacing Defective Processor Modules
114
Installation
114
Gateway Status Leds
115
Drive Status Indicator
116
Ms Status Indicator
116
Net a Status Indicator
116
Net B Status Indicator
116
End of Life and Equipment Disposal
116
Physical Data
117
Appendix A - Liquiflo™ 2 ICVC
167
Parameter Index
167
Appendix A - 19Xrv Liquiflo™ 2 ICVC Parameter Index (Cont)
169
Capacity Heat_Ex
170
Setup1
170
Power Vfd_Hist
170
Vfd_Stat
170
Setup3
171
Net_Opt
172
Setup2
172
Setup2
174
Vfd_Stat
172
Power Vfd_Hist
172
Startup Startup
174
Appendix B - Lead/Lag Wiring
175
Appendix C - Maintenance Summary and Log Sheets
177
Appendix D - Bacnet Communication Option
181
Index
188
4
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Carrier AquaEdge 19XRV series Specifications
General
Brand
Carrier
Model
AquaEdge 19XRV series
Category
Air Conditioner
Language
English
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