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Bryant
581A operation manual
Models:
581A
1
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Troubleshooting
Specifications
Install
C. To Use the Cooling Charging Chart
Iii. Evaporator Fan Service And Replacement
Dimension
Maintenance
A. Vertical Configuration
B. Field Control Wiring
XVI. DIAGNOSTIC LEDs
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Contents
XI. Step 11 - Position Optional Power
CONTENTS
SAFETY CONSIDERATIONS
INSTALLATION I. STEP 1 - PROVIDE UNIT SUPPORT
B. Alternate Unit Support
C. Installation Onto Curb
C. Slab Mount Horizontal Units Only
II. STEP 2 - REMOVE SHIPPING RAILS
Fig. 1 - Roof Curb Details
SHIPPING RAILS
Fig. 2 - Shipping Rail Removal
Fig. 3 - Rigging Details
Fig. 4 - Base Unit Dimensions
Table 1 - Physical Data
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Fig. 5 - Alignment Hole Details
A. Vertical Configuration
Fig. 6 - Alignment Hole Location
IV. STEP 4 - FIELD FABRICATE DUCTWORK
VIII. STEP 8 - INSTALL GAS PIPING
VI. STEP 6 - INSTALL FLUE HOOD AND INLET HOOD
Fig. 11 - Combustion Fan Housing Location
Fig. 9 - Concentric Duct Details
B. Field Control Wiring
A. Field Power Supply
Fig. 12 - Condensate Drain Details
Fig. 13 - Condensate Drain Piping Details
X. STEP 10 - INSTALL OUTDOOR-AIRHOOD
Fig. 15 - Field Power Wiring Connections
A. Manual Damper Assembly
Fig. 17 - Outdoor-AirHood Component
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Fig. 19 - Outdoor-AirHood Assembled
Fig. 18 - Outdoor-AirHood Details
Fig. 20 - Manual Damper Details
Fig. 22 - Bracket and Hood Positioning
XIII. STEP 13 - INSTALL ALL ACCESSORIES
XII. STEP 12 - NON-FUSEDDISCONNECT
VI. INTERNAL WIRING
III. REFRIGERANT SERVICE PORTS
PRE-START-UP
START-UP
IX. RETURN-AIRFILTERS
VIII. CONDENSER FANS AND MOTORS
X. OUTDOOR-AIRINLET SCREENS
XI. GAS HEAT
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GENERAL NOTES FOR TABLES
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Table 23 - Power Exhaust Fan Performance
Table 24 - Operation Air Quantity Limits
Table 25 - Evaporator Fan Motor Specifications
Table 27 - Fan Rpm at Motor Pulley Settings
Table 26 - Accessory/FIOP Static Pressure in. wg
XII. OPTIONAL ECONOMI$ER
A. EconoMi$er IV Standard Sensors
Fig. 25 - Outdoor-AirTemperature Changeover
Fig. 24 - Supply-AirTemperature Sensor Location
Table 28 - EconoMi$er IV Sensor Usage
Set Points
Fig. 26 - EconoMi$er IV Wiring
Fig. 27 - Enthalpy Changeover Set Points
Fig. 29 - CO2 Sensor Maximum Range Setting
LED Locations
APPROXIMATE DRY BULB TEMPERATURE- F C
TR = Return-AirTemperature
TO = Outdoor-AirTemperature
TM = Mixed-AirTemperature
OA = Percent of Outdoor Air
A. Cooling, Units Without Economizer
Table 29 - CO2 Sensor Standard Settings
XII. OPERATING SEQUENCE
I. CLEANING
SERVICE
A. Coil Maintenance and Cleaning Recommendation
B. Heating, Units Without Economizer
C. Filters
B.Condensate Drain
D. Outdoor-AirInlet Screens
E. Main Burner
F. Flue Gas Passageways
III. EVAPORATOR FAN SERVICE AND REPLACEMENT
G. Combustion-AirBlower
II. LUBRICATION A. Compressors
Table 30 - Belt Tension Adjustment
V.BELT TENSION ADJUSTMENT
VI. CONDENSER-FANADJUSTMENT Fig
Fig. 32 - Evaporator-FanMotor Adjustment
C. To Use the Cooling Charging Chart
VII. POWER FAILURE
IX. GAS VALVE ADJUSTMENT A. Natural Gas
Fig. 35 - Cooling Charging Chart - 581A210 Units
X.MAIN BURNERS
B.Cleaning and Adjustment
A.Main Burner Removal
Table 31 - Altitude Compensation Natural Gas
XV. REPLACEMENT PARTS
B. High-Pressureand Low-PressureSwitches
XVI. DIAGNOSTIC LEDs
Fig. 39 - Spark Gap Adjustment
LEGEND Fig. 40 - Low Voltage Control Schematic
Fig. 40 - Low Voltage Control Schematic
Fig. 41 - Power Schematic
Fig. 42 - Component Arrangement
Table 34 - Cooling Service Analysis
TROUBLESHOOTING I. UNIT TROUBLESHOOTING
Table 35 - Heating Service Analysis
Table 36 - IGC Board LED Alarm Codes
Fig. 43 - IGC Control Heating and Cooling
A. EconoMi$er IV Preparation
II.ECONOMI$ER IV TROUBLESHOOTING
B. Differential Enthalpy
C.Single Enthalpy
Fig. 44 - EconoMi$er IV Functional View
G.EconoMi$er IV Troubleshooting Completion
Table 37 - EconoMi$er IV Input/Output Logic
CATALOG NO
Copyright 2005 Bryant Heating & Cooling Systems
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