Carrier WEATHERMAKER 50A2025 Rooftop Unit Manuals

Manuals and User Guides for Carrier WEATHERMAKER 50A2025 Rooftop Unit. We have 2 Carrier WEATHERMAKER 50A2025 Rooftop Unit manuals available for free PDF download: Controls, Start-Up, Operation, Service And Troubleshooting Instructions, Operation And Service Manual

Carrier WEATHERMAKER 50A2025 Operation And Service Manual

Carrier WEATHERMAKER 50A2025 Operation And Service Manual (190 pages)

Single Package Large Rooftop Units with COMFORTLINK Version 5.x Controls

Brand: Carrier | Category: Air Conditioner | Size: 8 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
Mechanical Cooling
37
Cooling Control
37
- Setting up the System
  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
- Setting up the System
  57
- Operation
  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
Smoke Control Modes
66
- Fire-Smoke Inputs
  66
- Airflow Control During the Fire-Smoke Modes
  66
  - Setting up the System
    67
  - Operation
    67
- Relevant Items
  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 Mode - Run Status
140
- Mode - Service Test
  141
- Mode - Temperatures
  141
- Mode - Set Points
  142
- Mode - Inputs
  142
- Mode Configuration
  143
- Appendix A — Local Display Tables
  147
- Mode - Alarms
  147
- Status Display Tables
  148
Appendix B - Ccn Tables
148
- Set Point Table
  151
- Config Tables
  151
- Service-Config Tables
  152
- Appendix B — Ccn Tables
  160
- Time Schedule Config Table
  160
Appendix C - Vfd Information
161
- VFD Modes
  163
- Third Party Controls
  165
- VFD Diagnostics
  165
- VFD Maintenance
  165
- Maintenance
  167
- Appendix C — Vfd Information
  169
- Appendix D - Mode Selection Process
  170
Appendix E - Upc Open Controller
171
- Wiring the UPC Open Controller to the MS/TP Network
  172
- MS/TP Wiring Recommendations
  173
- Specification
  173
- Wiring Specifications
  174
- Local Access to the UPC Open
  174
- Device Connection
  174
- Error Led
  175
- Network Points List
  176
- Appendix E — Upc Open Controller
  182
- Unit Start-Up Checklist
  183
Index
183
Controls Set Point and Configuration Log
185
- Unit Start-Up Checklist
  190
- Pre-Start-Up
  190

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Carrier WEATHERMAKER 50A2025 Controls, Start-Up, Operation, Service And Troubleshooting Instructions

Carrier WEATHERMAKER 50A2025 Controls, Start-Up, Operation, Service And Troubleshooting Instructions (230 pages)

Single Package Large Rooftop Units with ComfortLink Version 10.x Controls

Brand: Carrier | Category: Air Conditioner | Size: 14 MB

Table of Contents

Table of Contents
1
Safety Considerations
2
General
3
Conventions Used in this Manual
3
Basic Control Usage
4
Comfortlink Controls
4
Scrolling Marquee
4
Accessory Navigator™ Display
4
Operation
5
CCN Tables and Display
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
21
VAV Units Using Return Air Sensor or Space Temperature Sensor
21
Multi-Stage Constant Volume (CV) Units with Mechanical Thermostat
21
Multi-Stage Constant Volume Units with Space
21
Sensor
21
Economizer Options
22
Indoor Air Quality (IAQ) Options
22
Exhaust Options
22
Programming Operating Schedules
22
Service Test
23
General
23
Service Test Mode Logic
24
Independent Outputs
24
Fans in Service Test Mode
24
Cooling in Service Test Mode
24
Heating in Service Test Mode
24
Humidi-Mizer System
24
Third Party Control
25
Thermostat
25
Alarm Output
25
Remote Switch
25
VFD Control
25
Supply Air Reset
26
Demand Limit Control
26
Demand Controlled Ventilation Control
26
Controls Operation
27
Modes
27
Unit Configuration Submenu
31
Cooling Control
33
Heating Control
50
Static Pressure Control
56
Fan Status Monitoring
60
Dirty Filter Switch
60
Economizer
60
Building Pressure Control
66
Smoke Control Modes
68
Indoor Air Quality Control
69
Dehumidification and Reheat
73
Humidi-Mizer Adaptive Dehumidification System
75
Temperature Compensated Start
76
Carrier Comfort Network (CCN) System
77
Alert Limit Configuration
78
Sensor Trim Configuration
79
Discrete Switch Logic Configuration
79
Display Configuration
80
Remote Control Switch Input
80
Hot Gas Bypass
81
Space Temperature Offset
81
Time Clock Configuration
82
Hour and Minute (HH.MM)
82
Month of Year (MNTH)
82
Day of Month (DOM)
82
Day of Week (DAY)
82
Year (YEAR)
82
Local Time Schedule (SCH.L)
82
Local Holiday Schedules (HOL.L)
83
Daylight Savings Time (DAY.S)
83
Troubleshooting
83
Complete Unit Stoppage
83
Single Circuit Stoppage
83
Service Analysis
83
Restart Procedure
83
Humidi-Mizer Troubleshooting
84
Thermistor Troubleshooting
84
Transducer Troubleshooting
84
Forcing Inputs and Outputs
98
Run Status Menu
98
Alarms and Alerts
101
Major System Components
110
General
110
Factory-Installed Components
111
Accessory Control Components
134
Service
137
Service Access
137
Cleaning
137
Lubrication
139
Evaporator Fan Performance Adjustment
139
Evaporator Fan Coupling Assembly
140
Evaporator Fan Service and Replacement
141
Belt Tension Adjustment
141
Evaporator-Fan Motor Replacement
141
Condenser-Fan Adjustment
141
Four-Inch Filter Replacement
141
Power Failure
142
Refrigerant Charge
142
Thermostatic Expansion Valve (TXV)
142
Gas Valve Adjustment
149
Main Burners
149
Filter Drier
149
Replacement Parts
149
Appendix A - Local Display Tables
150
Appendix B - Ccn Tables
161
Appendix C - Vfd Information
178
Appendix D - Mode Selection Process
186
Appendix E - Upc Open Controller
187
- Low Ambient Motormaster V Control
  196
Appendix F - Optional Factory-Installed
200
- Ambient Control
  206
Appendix G - Optional Greenspeed/Low
207
Index
222
Controls Setpoint and Configuration Log
223
Form 48/50A-14T Pg
229

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