Carrier WeatherMaker 50A7020 Manuals

Manuals and User Guides for Carrier WeatherMaker 50A7020. We have 1 Carrier WeatherMaker 50A7020 manual available for free PDF download: Controls, Start-Up, Operation, Service And Troubleshooting Instructions

Carrier WeatherMaker 50A7020 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: 14.49 MB

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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Carrier WeatherMaker 50A7020 Manuals

Carrier WeatherMaker 50A7020 Controls, Start-Up, Operation, Service And Troubleshooting Instructions (230 pages)

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