United Technologies Carrier Weathermaker 48A4 Manuals

Manuals and User Guides for United Technologies Carrier Weathermaker 48A4. We have 1 United Technologies Carrier Weathermaker 48A4 manual available for free PDF download: Controls, Start-Up, Operation, Service, And Troubleshooting

United Technologies Carrier Weathermaker 48A4 Controls, Start-Up, Operation, Service, And Troubleshooting (208 pages)

Single Package Large Rooftop Units with ComfortLink Version 8.x Controls

Brand: United Technologies | Category: Air Conditioner | Size: 14 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
System Pilot™ Interface
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
Variable Air Volume Units Using Return Air Sensor or Space Temperature Sensor
21
Multi-Stage Constant Volume Units with
21
Mechanical Thermostat
21
Space Sensor
21
Economizer Options
22
Indoor Air Quality Options
22
Exhaust Options
22
Programming Operating Schedules
22
Service Test
23
General
23
Service Test Mode Logic
23
Independent Outputs
23
Fans in Service Test Mode
23
Cooling in Service Test Mode
23
Heating in Service Test Mode
23
Humidi-Mizer
23
System
23
Third Party Control
25
Thermostat
25
Alarm Output
25
Remote Switch
25
VFD Control
25
Supply Air Reset
25
Demand Limit Control
25
Demand Controlled Ventilation Control
26
Controls Operation
27
Modes
27
System Modes
27
Hvac Modes
28
Unit Configuration Submenu
30
Cooling Control
32
Setting up the System
32
Machine Dependent Configurations
32
Supply Air Reset Configuration
33
Cooling Configuration
33
Compressor Safeties
35
Compressor Time Guards
35
Cool Mode Selection Process
35
Cooling Mode Diagnostic Help
40
Sumz Cooling Algorithm
40
Demand Limit Control
42
Head Pressure Control
43
Economizer Integration with Mechanical Cooling
44
Heating Control
47
Temperature Driven Heat Mode Evaluation
49
Heat Mode Diagnostic Help
49
Integrated Gas Control Board Logic
51
Morning Warm up
53
Tempering Mode
53
Static Pressure Control
54
Setting up the System
54
Static Pressure Reset Operation
55
Related Points
56
Fan Status Monitoring
57
Setting up the System
57
Supply Fan Status Monitoring Logic
57
Dirty Filter Switch
57
Economizer
57
Economizer Fault Detection and
57
Differential Dry Bulb Cutoff Control
58
Setting up the System
58
Economizer Operation
59
Unoccupied Economizer Free Cooling
60
Fdd Configurations
60
Building Pressure Control
62
Building Pressure Configuration
63
Constant Volume 2-Stage Control
63
Multiple Power Exhaust Stage Building
63
Pressure Control Operation
63
Vfd Power Exhaust Building Pressure Control
64
Smoke Control Modes
65
Fire-Smoke Inputs
65
Airflow Control During the Fire-Smoke Modes
65
Relevant Items
65
Indoor Air Quality Control
65
Pre-Occupancy Purge
69
Dehumidification and Reheat
69
Setting up the System
69
Humidi-Mizer Adaptive Dehumidification System
71
Setting up the System
71
Humidi-Mizer Modes
71
Temperature Compensated Start
72
Setting up the System
72
Temperature Compensated Start Logic
73
Carrier Comfort Network
73
(CCN) System
73
Alert Limit Configuration
74
Sensor Trim Configuration
75
Discrete Switch Logic Configuration
75
Display Configuration
76
Remote Control Switch Input
76
Hot Gas Bypass
77
Space Temperature Offset
77
Time Clock Configuration
77
Troubleshooting
79
Complete Unit Stoppage
79
Single Circuit Stoppage
79
Service Analysis
79
Restart Procedure
79
Humidi-Mizer Troubleshooting
79
Thermistor Troubleshooting
79
Transducer Troubleshooting
79
Forcing Inputs and Outputs
92
Run Status Menu
92
Auto View of Run Status
93
Economizer Run Status
93
Cooling Information
94
Ccn/Linkage Display Table
94
Compressor Run Hours Display Table
94
Compressor Starts Display Table
94
Time Guard Display Table
95
Alarms and Alerts
95
Major System Components
103
General
103
Factory-Installed Components
103
Accessory Control Components
125
Service
130
Service Access
130
Cleaning
130
Lubrication
132
Evaporator Fan Performance Adjustment
132
Evaporator Fan Coupling Assembly
132
Evaporator Fan Service and Replacement
133
Belt Tension Adjustment
133
Evaporator-Fan Motor Replacement
133
Condenser-Fan Adjustment
133
Four-Inch Filter Replacement
134
Power Failure
134
Refrigerant Charge
134
Thermostatic Expansion Valve (TXV)
134
Gas Valve Adjustment
141
Main Burners
141
Filter Drier
141
Replacement Parts
141
Appendix A - Local Display Tables
143
Appendix B - Ccn Tables
153
Appendix C - Vfd Information
168
Process
177
Appendix E - Upc Open Controller
178
Appendix F - Optional Low Ambient
190
Motormaster V Control
190
Index
200
Controls Setpoint and Configuration Log
201
Unit Start-Up Checklist
206

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United Technologies Carrier Weathermaker 48A4 Manuals

United Technologies Carrier Weathermaker 48A4 Controls, Start-Up, Operation, Service, And Troubleshooting (208 pages)

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