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Legacy 574D----A
Bryant Legacy 574D----A User Manual
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Table of Contents
Table of Contents
1
Page Safety Considerations
1
Introduction
2
Receiving and Installation
2
Check Equipment
2
Identify Unit
2
Inspect Shipment
2
Provide Unit Support
2
Roof Curb
2
Slab Mount
6
Field Fabricate Ductwork
6
Provide Clearances
6
Rig and Place Unit
6
Inspection
6
Rigging/Lifting
6
Connect Condensate Drain
9
Install Flue Hood
9
Install Gas Piping
9
Install Duct Connections
10
Configuring Units for Downflow (Vertical) Discharge
10
Install Electrical Connections
11
High- -Voltage Connections
11
Special Procedures for 208- -V Operation
12
Control Voltage Connections
12
Standard Connection
12
Heat Anticipator Setting
12
Transformer Protection
12
Pre- -Start- -Up
13
Start- -Up
13
Check for Refrigerant Leaks
13
Start- -Up Heating & Make Adjustments
13
Check Heating Control
14
Check Gas Input
14
Adjust Gas Input
14
Check Burner Flame
15
Normal Operation
22
Airflow and Temperature Rise
22
Heating Sequence of Operation
22
Limit Switches
22
Rollout Switch
22
Start- -Up Cooling & Make Adjustments
22
Checking Cooling Control Operation
22
Checking & Adjusting Refrigerant Charge
22
Indoor Airflow and Airflow Adjustments
23
Continuous Fan Operation
23
Cooling Sequence of Operation
24
Maintenance
31
Air Filter
31
Indoor Blower and Motor
31
Induced Draft (Combustion Air) Blower
32
Flue Gas Passageways
32
Limit Switch
32
Burner Ignition
32
Main Burners
32
Removal of Gas Train
32
Outdoor Coil, Indoor Coil, & Condensate Drain Pan
32
Outdoor Fan
33
Electrical Controls and Wiring
34
Refrigerant Circuit
34
Gas Input
34
Evaporator Airflow
34
Puron Items
34
Troubleshooting
35
Start- -Up Checklist
35
Vertical Economizer
40
General
40
Accessories
40
Installation
40
Small Chassis
40
Large Chassis
44
Configuration
47
Operation
56
Troubleshooting
57
4
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Bryant Legacy 574D----A Specifications
General
Brand
Bryant
Model
Legacy 574D----A
Category
Air Conditioner
Language
English
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