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WEATHERMASTER 50Z070
Carrier WEATHERMASTER 50Z070 Manuals
Manuals and User Guides for Carrier WEATHERMASTER 50Z070. We have
1
Carrier WEATHERMASTER 50Z070 manual available for free PDF download: Operation And Service Manual
Carrier WEATHERMASTER 50Z070 Operation And Service Manual (180 pages)
Single Package Large Rooftop Units with COMFORTLINK Version 4.X Controls
Brand:
Carrier
| Category:
Air Conditioner
| Size: 6.57 MB
Table of Contents
Table of Contents
1
Service and Troubleshooting
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
System Pilot™ Interface
5
CCN Tables and Display
5
Generic 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
33
Two-Stage Constant Volume Units with
33
Mechanical Thermostat
33
Space Sensor
33
Variable Air Volume Units Using Return Air
33
Sensor or Space Temperature Sensor
33
Multi-Stage Constant Volume Units with
33
Multi-Stage Constant Volume Units with
34
Space Sensor
34
Economizer Options
34
Indoor Air Quality Options
34
Exhaust Options
34
Set Clock on VFD (if Installed)
35
Programming Operating Schedules
36
Service Test
36
General
36
Service Test Mode Logic
38
Independent Outputs
38
Fans
38
Actuators
38
Cooling
38
Heating
38
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
39
Controls Operation
40
Modes
40
System Modes
41
Hvac Modes
41
Unit Configuration Submenu
42
Cooling Control
45
Setting up the System
45
Machine Dependent Configurations
46
Supply Air Reset Configuration
47
Cooling Configuration
47
Economizer Integration with
53
Heating Control
54
Temperature Driven Heat Mode Evaluation
55
Two-Stage Gas and Electric Heat Control
56
Staged Gas Heating Control
57
Tempering Mode
61
Static Pressure Control
61
Static Pressure Reset
64
Fan Status Monitoring
64
Supply Fan Status Monitoring Logic
64
Dirty Filter Switch
64
Economizer
65
Economizer Changeover Select
65
Outdoor Air Cfm Control
66
Economizer Operation Configuration
68
Building Pressure Control
69
Building Pressure Control Operation
70
Configuring the Building Pressure
72
Control Angle Alarm Configuration
72
Smoke Control Modes
72
Fire Smoke Inputs
73
Airflow Control During the Fire/Smoke
73
Relevant Items
73
Indoor Air Quality Control
73
Humidification
76
Configuring the Humidifier Actuator
77
Dehumidification and Reheat
77
Temperature Compensated Start
78
Temperature Compensated Start Logic
79
Carrier Comfort Network
79
(Ccn)
79
Alert Limit Configuration
80
Sensor Trim Configuration
81
Discrete Switch Logic Configuration
81
Display Configuration
82
Remote Control Switch Input
83
Hot Gas Bypass
83
Space Temperature Offset
83
Time Clock Configuration
84
Troubleshooting
85
Complete Unit Stoppage
85
Single Circuit Stoppage
85
Service Analysis
85
Restart Procedure
85
Thermistor Troubleshooting
85
Transducer Troubleshooting
86
Forcing Inputs and Outputs
90
Run Status Menu
90
Auto View of Run Status
92
Economizer Run Status
93
Cooling Information
93
Mode Trip Helper
93
Ccn/Linkage Display Table
94
Compressor Run Hours Display Table
94
Compressor Starts Display Table
94
Alarms and Alerts
94
Major System Components
102
General
102
Factory-Installed Components
102
Accessory Control Components
122
Service
125
Service Access
125
Adjustments
128
Cleaning
129
Lubrication
130
Refrigerant Feed Components
130
Thermostatic Expansion Valve (TXV)
130
Refrigeration Circuits
130
Oil Charge
130
Gas System Adjustment (48Z Only)
131
Moisture/Liquid Indicator
131
Filter Drier
131
Liquid Line Service Valve
131
Compressor Discharge Service Valve
131
Compressor Suction Service Valve
131
Protective Devices
131
Relief Devices
132
Control Circuit, 115 V
132
Control Circuit, 24 V
132
Gas Heat (48Z Only)
132
Compressor Removal
132
Compressor Replacement
132
Appendix A - Local Display Tables
133
Appendix A — Local Display Tables
141
Appendix B - Ccn Tables
142
Appendix B — Ccn Tables
156
Appendix C - Unit Staging Tables
156
Appendix C — Unit Staging Tables
159
Appendix D - Vfd Information
160
Appendix D — Vfd Information
168
Process
169
Process
170
Appendix E - Mode Selection
170
Index
171
Controls Set Point and Configuration Log
173
Unit Start-Up Checklist
179
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