Carrier WeatherExpert 50N2 Manuals

Manuals and User Guides for Carrier WeatherExpert 50N2. We have 2 Carrier WeatherExpert 50N2 manuals available for free PDF download: Controls, Start-Up, Operation, Service, And Troubleshooting, Controls, Start-Up, Operation, Service And Troubleshooting Instructions

Carrier WeatherExpert 50N2 Controls, Start-Up, Operation, Service And Troubleshooting Instructions (248 pages)

Packaged Rooftop Cooling Units with Gas Heat, Optional Electric Heat, or Hydronic Heat and ComfortLink Controls

Brand: Carrier | Category: Air Conditioner | Size: 12.76 MB

Table of Contents
1
Safety Considerations
2
General
3
Basic Control Usage
4
Comfortlink Controls
4
Navigator™ Display
4
Operation
4
Conventions Used in this Manual
5
System Pilot™ Interface
5
CCN Tables and Display
5
- Generic Status Display Table
  5
Start-Up
5
Unit Preparation
5
Internal Wiring
5
Accessory Installation
6
Crankcase Heaters
6
Evaporator Fan
6
Controls
6
Gas Heat
6
Controls Quick Start
27
Variable Air Volume Units Using Return Air
27
- Sensor or Space Temperature Sensor
  27
Multi-Stage Constant Volume and Staged Air
27
- Volume Units with Mechanical Thermostat
  27
- Volume Units Units with Space Sensor
  27
Economizer Configurations
27
Indoor Air Quality Configurations
28
Exhaust Configurations
28
Set Clock on VFD
28
Programming Operating Schedules
29
Service Test
29
General
29
Service Test Mode Logic
29
Independent Outputs
29
Fans
29
Actuators
32
Humidi-Mizer
32
Cooling
32
- System
  32
Heating
33
Service Component Tests
33
Third Party Control
39
Thermostat
39
Alarm Output
39
Remote Switch
39
VFD Control
39
Supply Air Reset
39
Demand Limit Control
39
Economizer/Outdoor Air Damper Control
40
Controls Operation
41
Modes
41
- System Modes
  41
- Hvac Modes
  42
Unit Configuration
44
Cooling Control
46
Heating Control
61
Static Pressure Control
69
- Setting up the System
  69
- Related Points
  70
- Static Pressure Reset
  71
Fan Status Monitoring
72
Dirty Filter Switch
72
Economizer
73
- Economizer Fault Detection and Diag
  73
- Differential Dry Bulb Cutoff Control
  74
- Economizer Self Test
  74
- Fdd Configurations
  75
- Setting up the System
  76
- Economizer Operation
  76
- Economizer Changeover Selection
  76
- Outdoor Air Cfm Control
  77
- Economizer Operation Configurations
  79
- Economizer Diagnostic Help
  80
Building Pressure Control
80
- Setting up the System
  80
Smoke Control Modes
82
Indoor Air Quality Control
83
- Pre-Occupancy Purge
  85
- Optional Airflow Station
  85
Humidification
86
- Setting up the System
  86
- Configuring the Humidifier Actuator
  86
Dehumidification and Reheat
87
- Setting up the System
  87
Humidi-Mizer
88
- System
  88
- Adaptive Dehumidification
  88
- Operation
  89
- Humidi-Mizer Modes
  89
Temperature Compensated Start
89
- Temperature Compensated Start Logic
  90
Carrier Comfort Network
91
Alert Limit Configuration
91
- (Ccn)
  91
Sensor Trim Configuration
93
Discrete Switch Logic Configuration
93
Display Configuration
94
VFD Configurations
95
Remote Control Switch Input
96
Hot Gas Bypass
97
Space Temperature Offset
97
Time Clock Configuration
97
Troubleshooting
99
Complete Unit Stoppage
99
Single Circuit Stoppage
99
Service Analysis
99
Restart Procedure
99
Humidi-Mizer
99
Thermistor Troubleshooting
99
Transducer Troubleshooting
102
Forcing Inputs and Outputs
102
Run Status Menu
102
- Auto View of Run Status
  112
- Economizer Run Status
  113
- Cooling Information
  113
- Exv Information Display Table
  114
- Vfd Information Display Table
  114
- Outdoor Fan Vfd Display Table
  114
- Mode Trip Helper
  114
- Ccn/Linkage Display Table
  115
- Compressor Run Hours Display Table
  115
- Compressor Starts Display Table
  115
Alarms and Alerts
115
Major System Components
127
General
127
Factory-Installed Components
127
Accessory Control Components
149
Service
152
Service Access
152
Adjustments
155
Cleaning
158
Lubrication
159
Refrigerant Feed Components
159
Electronic Expansion Valve (EXV)
159
Refrigeration Circuits
159
Gas System Adjustment (48N Only)
171
Moisture/Liquid Indicator
171
Filter Drier
172
Liquid Line Service Valves
172
Protective Devices
172
Temperature Relief Devices
172
Control Circuit, 115 V
172
Control Circuit, 24 V
172
Gas Heat (48N Only)
172
Compressor Removal
173
Compressor Replacement
173
Appendix A - Local Display Tables
174
Appendix B - Ccn Tables
188
Appendix C - Unit Staging Tables
208
Appendix D - Vfd Information
211
Appendix E - Mode Selection
221
Process
221
Option
223
Appendix F - Bacnet Communication
224
Option
233
Appendix G - Optional Motormaster
234
Control
234
Index
240
Controls Set Point and Configuration Log
245
Unit Start-Up Checklist
248

Carrier WeatherExpert 50N2 Controls, Start-Up, Operation, Service, And Troubleshooting (268 pages)

Packaged Rooftop Cooling Units with Gas Heat, Optional Electric Heat, or Hydronic Heat and ComfortLink Controls Version 10.x

Brand: Carrier | Category: Fan | Size: 13.2 MB

Table of Contents
1
Safety Considerations
2
General
3
Conventions Used in this Manual
4
Basic Control Usage
4
Comfortlink Controls
4
Navigator™ Display
4
Operation
4
System Pilot™ Interface
5
CCN Tables and Display
5
Unit Preparation
7
Internal Wiring
7
Accessory Installation
7
Crankcase Heaters
7
Evaporator Fan
7
Controls
7
Gas Heat
7
Controls Quick Start
27
VAV Units Using Return Air Sensor or Space Temperature Sensor
27
Multi-Stage CV and SAV Units with Mechanical
27
- Thermostat
  27
Multi-Stage CV and SAV Units with Space Sensor
27
Economizer Configurations
27
Indoor Air Quality Configurations
28
Exhaust Configurations
28
Set Clock on VFD
28
Programming Operating Schedules
29
Service Test
29
General
29
Service Test Mode Logic
29
Independent Outputs
29
Fans
29
Actuators
33
Humidi-Mizer® System
33
Cooling
33
Heating
34
Service Component Tests
34
Control Description (Overview)
34
Auto-Component Test Control Descriptions
34
Digital Scroll Compressor (A1) Auto-Component Test
35
EXV Auto-Component Test
35
Refrigerant Charge Auto-Test
36
- Sensors)
  36
Minimum Load Valve Auto-Component Test
36
Supply Fan Auto-Component Test
36
Third Party Control
37
Thermostat
37
Alarm Output
37
Remote Switch
37
VFD Control
37
Supply Air Reset
37
Demand Limit Control
37
Economizer/Outdoor Air Damper Control
37
Controls Operation
39
Modes
39
Unit Configuration
42
Cooling Control
44
Heating Control
60
Static Pressure Control
69
Fan Status Monitoring
71
Dirty Filter Switch
72
Economizer
73
Building Pressure Control
82
Smoke Control Modes
84
Indoor Air Quality Control
84
Humidification
88
Dehumidification and Reheat
89
Humidi-Mizer Adaptive Dehumidification System
90
Temperature Compensated Start
93
Carrier Comfort Network® (CCN)
93
Alert Limit Configuration
94
Sensor Trim Configuration
96
Discrete Switch Logic Configuration
97
Display Configuration
98
VFD Configurations
98
Remote Control Switch Input
100
Hot Gas Bypass
100
Space Temperature Offset
100
Time Clock Configuration
101
Hour and Minute (HH.MM)
101
Month of Year (MNTH)
101
Day of Month (DOM)
101
Day of Week (DAY)
101
Year (YEAR)
101
Local Time Schedule (SCH.L)
101
Local Holiday Schedules (HOL.L)
101
Daylight Savings Time (DAY.S)
101
Service Analysis
103
Restart Procedure
103
Humidi-Mizer® Troubleshooting
103
Thermistor Troubleshooting
103
Transducer Troubleshooting
103
Forcing Inputs and Outputs
103
Troubleshooting
103
Complete Unit Stoppage
103
Single Circuit Stoppage
103
Run Status Menu
116
Alarms and Alerts
121
Major System Components
134
General
134
Factory-Installed Components
150
Accessory Control Components
161
Service
164
Service Access
164
Adjustments
169
Cleaning
171
Lubrication
171
Electronic Expansion Valve (EXV)
171
Refrigeration Circuits
171
Gas System Adjustment (48N Only)
184
Moisture/Liquid Indicator
184
Filter Drier
185
Liquid Line Service Valves
185
Protective Devices
185
Temperature Relief Devices
185
Control Circuit, 115 V
185
Control Circuit, 24 V
186
Gas Heat (48N Only)
186
Compressor Removal
186
Compressor Replacement
186
Appendix A - Local Display Tables
187
Appendix B - Ccn Tables
206
Appendix C - Unit Staging Tables
228
Appendix D - Vfd Information
230
Appendix E - Mode Selection Process
241
Appendix F - Bacnet Communication
244
Appendix G - Optional Motormaster
252
Control
252
Index
256
Controls Set Point and Configuration Log
261

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