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Bryant
581A operation manual
Models:
581A
1
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Troubleshooting
Specification
Install
Psychrometric Chart for Solid-State
Iv. Evaporator Fan Service And Replacement
Dimension
B. Field Control Wiring
Xvii. Diagnostic Leds
Economizer Damper Assembly-EndView
Economizer Checkout Procedures
Page 39
Image 39
Page 38
Page 40
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Image 39
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Contents
XI. Step 11 - Install All Accessories
CONTENTS
V. Step 5 - Install Flue Hood and Wind
X. Step 10 - Install Outdoor-AirHood
Fig. 1 - Roof Curb Details
II. STEP 2 - RIG AND PLACE UNIT
Fig. 2 - Horizontal Adapter Roof Curbs
and Roof Curbs
B. Alternate Unit Support
Fig. 4 - Base Unit Dimensions 581A155 and
Fig. 5 - Base Unit Dimensions 581A240
Table 1 - Physical Data
Fig. 8 - Concentric Duct Details
V.STEP 5 - INSTALL FLUE HOOD AND WIND BAFFLE
III. STEP 3 - FIELD FABRICATE DUCTWORK
IV. STEP 4 - MAKE UNIT DUCT CONNECTIONS
A. Field Power Supply
Fig. 10 - Combustion Fan Housing Location
VII. STEP 7 - INSTALL GAS PIPING
VIII. STEP 8 - MAKE ELECTRICAL CONNECTIONS
Fig. 15 - Field Control Thermostat Wiring
B. Field Control Wiring
Fig. 14 - Field Power Wiring Connections
STEP 9 - MAKE OUTDOOR-AIRINLET ADJUSTMENTS
Table 2 - Electrical Data
Fig. 19 - Economizer Motor Control
Fig. 17 - Economizer Damper Assembly-EndView
X.STEP 10 - INSTALL OUTDOOR-AIRHOOD
Fig. 16 - 25% Outdoor-AirSection Details
Fig. 23 - Outdoor-Airand Return-Air
A.Enthalpy Control Installation
Fig. 21 - Seal Strip Location
Fig. 22 - Outdoor-AirHood Details
Fig. 25 - Wind Baffle Details
Fig. 24 - Psychrometric Chart for Solid-State
XI. STEP 11 - INSTALL ALL ACCESSORIES
Enthalpy Control B. Differential Enthalpy Control
Locations
B. Motormaster III Control Installation 581A240
II. SERVICE VALVES
IV. REFRIGERANT SERVICE PORTS
VIII. EVAPORATOR FAN
VI. INTERNAL WIRING
XII. ACCESSORY ECONOMIZER ADJUSTMENT
VII. CRANKCASE HEATERS
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Table 12 - Evaporator Fan Motor Specifications
Table 14 - Fan RPM at Motor Pulley Setting
Table 11 - Air Quantity Limits
A. Cooling, Units Without Economizer
Fig. 27 - Fan Performance Using Accessory
Power Exhaust XIII. GAS HEAT
XIV. BASE UNIT OPERATION
E. Heating, Units With Economizer
SERVICE
I. CLEANING
D. Freeze Protection Thermostats
II. LUBRICATION A. Compressors
III.EVAPORATOR FAN PERFORMANCE ADJUSTMENT Fig
IV. EVAPORATOR FAN SERVICE AND REPLACEMENT
Fig. 30 - Evaporator-FanAlignment and Adjustment
Fig. 34 - Condenser Fan Adjustment, 581A240
V. BELT TENSION ADJUSTMENT
VI. CONDENSER-FANADJUSTMENT
Fig. 33 - Condenser Fan Adjustment, 581A155 and
C. To Use the Cooling Charging Chart
VII. ECONOMIZER ADJUSTMENT
Table 16 - Economizer Checkout Procedures
VIII. POWER FAILURE
XI. MAIN BURNERS
Fig. 35 - Cooling Charging Chart
X. GAS VALVE ADJUSTMENT A. Natural Gas
B. Cleaning and Adjustment
C. Condenser-FanMotor Protection
D. High- and Low-PressureSwitches
XVI. REPLACEMENT PARTS
XVII. DIAGNOSTIC LEDS
581A180360 AND 581A240360
Fig. 37 - Spark Gap Adjustment
581A155225
581A180270, 581A240270, AND 581A155300
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ECONOMIZER OPTION/ACCESSORY
TROUBLESHOOTING
Table 18 - Cooling Service Analysis
—35—
Table 19 - Heating Service Analysis
Fig. 40 - IGC Control Heating and Cooling
CALL FOR FREE CATALOG
PACKAGED SERVICE TRAINING
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GENERAL
TEMPERATURES
ELECTRICAL
PRESSURES
