Carrier WeatherExpert 50N7 Rooftop Unit Manuals

Manuals and User Guides for Carrier WeatherExpert 50N7 Rooftop Unit. We have 2 Carrier WeatherExpert 50N7 Rooftop Unit manuals available for free PDF download: Controls, Start-Up, Operation, Service, And Troubleshooting, Installation Instructions Manual

Carrier WeatherExpert 50N7 Controls, Start-Up, Operation, Service, And Troubleshooting

Carrier WeatherExpert 50N7 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 MB

Table of Contents

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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Carrier WeatherExpert 50N7 Installation Instructions Manual

Carrier WeatherExpert 50N7 Installation Instructions Manual (60 pages)

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

Brand: Carrier | Category: Air Conditioner | Size: 15 MB

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