Carrier WEATHERMAKER 48/50AJ Manuals

Manuals and User Guides for Carrier WEATHERMAKER 48/50AJ. We have 1 Carrier WEATHERMAKER 48/50AJ manual available for free PDF download: Operation And Service Manual

Carrier WEATHERMAKER 48/50AJ 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
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
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

Carrier Categories

Air Conditioner Heat Pump Furnace Thermostat Chiller

More Carrier Manuals

Carrier WEATHERMAKER 48/50AJ Manuals

Carrier WEATHERMAKER 48/50AJ Operation And Service Manual (190 pages)

Table of Contents

Related Products

Carrier Categories