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WEATHERMAKER 50AJ025
Carrier WEATHERMAKER 50AJ025 Manuals
Manuals and User Guides for Carrier WEATHERMAKER 50AJ025. We have
2
Carrier WEATHERMAKER 50AJ025 manuals available for free PDF download: Operation And Service Manual, Operating And Service Manual
Carrier WEATHERMAKER 50AJ025 Operation And Service Manual (190 pages)
Single Package Large Rooftop Units with COMFORTLINK Version 5.x Controls
Brand:
Carrier
| Category:
Air Conditioner
| Size: 8.6 MB
Table of Contents
Table of Contents
1
Safety Considerations
2
General
3
Conventions Used in this Manual
3
Basic Control Usage
3
Comfortlink Controls
3
Scrolling Marquee
4
Accessory Navigator™ Display
4
Operation
4
System Pilot™ Interface
5
CCN Tables and Display
5
Generics Status Display Table
5
Start-Up
7
Unit Preparation
7
Unit Setup
7
Internal Wiring
7
Accessory Installation
7
Crankcase Heaters
7
Evaporator Fan
7
Controls
7
Gas Heat
7
Controls Quick Start
27
Two-Stage Constant Volume Units with
27
Mechanical Thermostat
27
Space Sensor
28
Variable Air Volume Units Using Return Air Sensor or Space Temperature Sensor
28
Multi-Stage Constant Volume Units with
28
Mechanical Thermostat
28
Economizer Options
28
Indoor Air Quality Options
29
Exhaust Options
29
Programming Operating Schedules
29
Service Test
29
General
29
Service Test Mode Logic
29
Independent Outputs
30
Fans in Service Test Mode
30
Cooling in Service Test Mode
30
Heating in Service Test Mode
30
Third Party Control
31
Thermostat
31
Alarm Output
31
Remote Switch
31
VFD Control
31
Supply Air Reset
31
Demand Limit Control
31
Demand Controlled Ventilation Control
31
Controls Operation
32
Modes
32
System Modes
33
Hvac Modes
33
Unit Configuration Submenu
35
Cooling Control
37
Setting up the System
37
Mechanical Cooling
37
Machine Dependent Configurations
38
Set Points
38
Supply Air Reset Configuration
38
Cooling Configuration
39
Compressor Safeties
39
Compressor Time Guards
40
Cool Mode Selection Process
40
Cooling Mode Diagnostic Help
46
Sumz Cooling Algorithm
46
Head Pressure Control
49
Economizer Integration with Mechanical Cooling
50
Heating Control
50
Setting up the System
50
Temperature Driven Heat Mode Evaluation
52
Heat Mode Diagnostic Help
52
Integrated Gas Control Board Logic
54
Morning Warm up
56
Tempering Mode
56
Static Pressure Control
57
Operation
57
Setting up the System
57
Static Pressure Reset Operation
59
Related Points
59
Fan Status Monitoring
59
Setting up the System
59
Supply Fan Status Monitoring Logic
60
Dirty Filter Switch
60
Economizer
60
Setting up the System
60
Economizer Operation
61
Economizer Operation Configuration
63
Economizer Diagnostic Help
63
Building Pressure Control
63
Building Pressure Configuration
65
Constant Volume 2-Stage Control
65
Multiple Power Exhaust Stage Building
65
Pressure Control Operation
65
Vfd Power Exhaust Building Pressure
66
Smoke Control Modes
66
Fire-Smoke Inputs
66
Airflow Control During the Fire-Smoke Modes
66
Relevant Items
67
Setting up the System
67
Operation
67
Indoor Air Quality Control
67
Operation
69
Dehumidification and Reheat
69
Temperature Compensated Start
71
Temperature Compensated Start Logic
71
Carrier Comfort Network
71
(CCN) System
71
Alert Limit Configuration
72
Sensor Trim Configuration
73
Discrete Switch Logic Configuration
74
Display Configuration
74
Remote Control Switch Input
74
Hot Gas Bypass
75
Space Temperature Offset
75
Time Clock Configuration
75
Troubleshooting
77
Complete Unit Stoppage
77
Single Circuit Stoppage
77
Service Analysis
77
Restart Procedure
77
Thermistor Troubleshooting
77
Transducer Troubleshooting
78
Forcing Inputs and Outputs
90
Run Status Menu
90
Auto View of Run Status
91
Economizer Run Status
91
Cooling Information
92
Mode Trip Helper
92
Ccn/Linkage Display Table
92
Compressor Run Hours Display Table
92
Compressor Starts Display Table
92
Time Guard Display Table
93
Software Version Numbers Display Table
93
Alarms and Alerts
93
Major System Components
101
General
101
Factory-Installed Components
101
Accessory Control Components
124
Service
128
Service Access
128
Cleaning
128
Lubrication
130
Evaporator Fan Performance Adjustment
130
Evaporator Fan Coupling Assembly
130
Evaporator Fan Service and Replacement
131
Belt Tension Adjustment
131
Evaporator-Fan Motor Replacement
131
Condenser-Fan Adjustment
132
Four-Inch Filter Replacement
132
Power Failure
132
Refrigerant Charge
132
Thermostatic Expansion Valve (TXV)
132
Gas Valve Adjustment
132
Main Burners
139
Filter Drier
139
Replacement Parts
139
Appendix A - Local Display Tables
140
Appendix A — Local Display Tables
147
Appendix B - Ccn Tables
148
Appendix B — Ccn Tables
160
Appendix C - Vfd Information
161
Appendix C — Vfd Information
169
Appendix D - Mode Selection
170
Process
170
Appendix E - Upc Open Controller
171
Appendix E — Upc Open Controller
182
Unit Start-Up Checklist
183
Index
183
Controls Set Point and Configuration Log
185
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Carrier WEATHERMAKER 50AJ025 Operating And Service Manual (160 pages)
Single Package Large Rooftop Units with Scroll Compressors and COMFORT LINK Version 4.X Controls
Brand:
Carrier
| Category:
Air Conditioner
| Size: 7.75 MB
Table of Contents
Table of Contents
1
Service and Troubleshooting
1
Safety Considerations
2
General
2
Basic Control Usage
3
Comfortlink Control
3
Scrolling Marquee
3
Accessory Navigator™ Display
4
Operation
4
System Pilot™ Interface
4
CCN Tables and Display
5
Generics Status Display Table
5
Conventions Used in this Manual
5
Start-Up
7
Unit Preparation
7
Unit Setup
7
Internal Wiring
7
Accessory Installation
7
Crankcase Heaters
7
Evaporator Fan
7
Controls
7
Gas Heat
7
Controls Quick Start
27
Two-Stage Constant Volume Units with
27
Mechanical Thermostat
27
Space Sensor
27
Variable Air Volume Units Using Return Air Sensor or Space Temperature Sensor
27
Multi-Stage Constant Volume Units with
28
Mechanical Thermostat
28
Space Sensor
28
Economizer Options
28
Indoor Air Quality Options
28
Exhaust Options
28
Set Clock on VFD (if Installed)
28
Programming Operating Schedules
29
Service Test
29
General
29
Service Test Mode Logic
29
Independent Outputs
30
Fans
30
Cooling
30
Heating
30
Third Party Control
30
Thermostat
30
Alarm Output
30
Remote Switch
30
VFD Control
31
Supply Air Reset
31
Demand Limit Control
31
Demand Controlled Ventilation Control
31
Controls Operation
32
Modes
32
System Modes
32
Hvac Modes
33
Unit Configuration Submenu
35
Cooling Control
36
Setting up the System
37
Machine Dependent Configurations
37
Set Points
37
Supply Air Reset Configuration
38
Cooling Configuration
38
Demand Limit Control
45
Economizer Integration with Mechanical Cooling
47
Heating Control
47
Setting up the System
47
Heat Mode Selection Process
48
Temperature Driven Heat Mode Evaluation
48
Heat Mode Diagnostic Help
49
Integrated Gas Control Board Logic
51
Morning Warm up
53
Tempering Mode
53
Static Pressure Control
54
Setting up the System
54
Static Pressure Reset
56
Related Points
56
Fan Status Monitoring
57
Setting up the System
57
Supply Fan Status Monitoring Logic
57
Dirty Filter Switch
57
Economizer
57
Unoccupied Economizer Free Cooling
59
Economizer Operation Configuration
59
Economizer Diagnostic Help
60
Building Pressure Control
61
Building Pressure Configuration
61
Constant Volume 2-Stage Control
61
Multiple Power Exhaust Stage Building
61
Pressure Control Operation
61
Indoor Air Quality Control
63
Setting up the System
64
Pre-Occupancy Purge
66
Smoke Control Modes
63
Fire-Smoke Inputs
63
Dehumidification and Reheat
66
Setting up the System
66
Temperature Compensated Start
67
Setting up the System
67
Temperature Compensated Start Logic
68
Carrier Comfort Network (CCN)
68
Alert Limit Configuration
69
Sensor Trim Configuration
69
Discrete Switch Logic Configuration
70
Display Configuration
71
Remote Control Switch Input
71
Hot Gas Bypass
72
Space Temperature Offset
72
Time Clock Configuration
72
Troubleshooting
74
Complete Unit Stoppage
74
Single Circuit Stoppage
74
Service Analysis
74
Restart Procedure
74
Thermistor Troubleshooting
74
Transducer Troubleshooting
74
Forcing Inputs and Outputs
83
Run Status Menu
83
Auto View of Run Status
84
Economizer Run Status
84
Cooling Information
85
Mode Trip Helper
85
Ccn/Linkage Display Table
85
Compressor Run Hours Display Table
85
Compressor Starts Display Table
85
Time Guard Display Table
85
Software Version Numbers Display Table
85
Alarms and Alerts
86
Major System Components
94
General
94
Factory-Installed Components
94
Accessory Control Components
114
Service
118
Service Access
118
Cleaning
118
Lubrication
120
Evaporator Fan Performance Adjustment
120
Evaporator Fan Coupling Assembly
120
Evaporator Fan Service and Replacement
121
Belt Tension Adjustment
121
Evaporator-Fan Motor Replacement
121
Condenser-Fan Adjustment
121
Four-Inch Filter Replacement
121
Power Failure
121
Refrigerant Charge
121
Thermostatic Expansion Valve (TXV)
122
Gas Valve Adjustment
122
Main Burners
122
Filter Drier
122
Replacement Parts
122
Appendix A - Local Display Tables
123
Appendix B - Ccn Tables
131
Appendix C - Vfd Information
144
Appendix D - Mode Selection
152
Process
152
Airflow Control During Fire-Smoke Modes
154
Index
154
Unit Start-Up Checklist
159
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