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Bryant
581A operation manual
Models:
581A
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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 33
Image 33
Fig. 38 — Typical Wiring Schematic (581A180, 208/230 V Unit Shown) (cont)
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Page 34
Page 33
Image 33
Page 32
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Contents
V. Step 5 - Install Flue Hood and Wind
CONTENTS
X. Step 10 - Install Outdoor-AirHood
XI. Step 11 - Install All Accessories
Fig. 1 - Roof Curb Details
and Roof Curbs
Fig. 2 - Horizontal Adapter Roof Curbs
B. Alternate Unit Support
II. STEP 2 - RIG AND PLACE UNIT
Fig. 4 - Base Unit Dimensions 581A155 and
Fig. 5 - Base Unit Dimensions 581A240
Table 1 - Physical Data
III. STEP 3 - FIELD FABRICATE DUCTWORK
V.STEP 5 - INSTALL FLUE HOOD AND WIND BAFFLE
IV. STEP 4 - MAKE UNIT DUCT CONNECTIONS
Fig. 8 - Concentric Duct Details
VII. STEP 7 - INSTALL GAS PIPING
Fig. 10 - Combustion Fan Housing Location
VIII. STEP 8 - MAKE ELECTRICAL CONNECTIONS
A. Field Power Supply
Fig. 14 - Field Power Wiring Connections
B. Field Control Wiring
STEP 9 - MAKE OUTDOOR-AIRINLET ADJUSTMENTS
Fig. 15 - Field Control Thermostat Wiring
Table 2 - Electrical Data
X.STEP 10 - INSTALL OUTDOOR-AIRHOOD
Fig. 17 - Economizer Damper Assembly-EndView
Fig. 16 - 25% Outdoor-AirSection Details
Fig. 19 - Economizer Motor Control
Fig. 21 - Seal Strip Location
A.Enthalpy Control Installation
Fig. 22 - Outdoor-AirHood Details
Fig. 23 - Outdoor-Airand Return-Air
XI. STEP 11 - INSTALL ALL ACCESSORIES
Fig. 24 - Psychrometric Chart for Solid-State
Enthalpy Control B. Differential Enthalpy Control
Fig. 25 - Wind Baffle Details
II. SERVICE VALVES
B. Motormaster III Control Installation 581A240
IV. REFRIGERANT SERVICE PORTS
Locations
XII. ACCESSORY ECONOMIZER ADJUSTMENT
VI. INTERNAL WIRING
VII. CRANKCASE HEATERS
VIII. EVAPORATOR FAN
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Table 12 - Evaporator Fan Motor Specifications
Table 14 - Fan RPM at Motor Pulley Setting
Table 11 - Air Quantity Limits
Power Exhaust XIII. GAS HEAT
Fig. 27 - Fan Performance Using Accessory
XIV. BASE UNIT OPERATION
A. Cooling, Units Without Economizer
I. CLEANING
SERVICE
D. Freeze Protection Thermostats
E. Heating, Units With Economizer
IV. EVAPORATOR FAN SERVICE AND REPLACEMENT
III.EVAPORATOR FAN PERFORMANCE ADJUSTMENT Fig
Fig. 30 - Evaporator-FanAlignment and Adjustment
II. LUBRICATION A. Compressors
VI. CONDENSER-FANADJUSTMENT
V. BELT TENSION ADJUSTMENT
Fig. 33 - Condenser Fan Adjustment, 581A155 and
Fig. 34 - Condenser Fan Adjustment, 581A240
Table 16 - Economizer Checkout Procedures
VII. ECONOMIZER ADJUSTMENT
VIII. POWER FAILURE
C. To Use the Cooling Charging Chart
X. GAS VALVE ADJUSTMENT A. Natural Gas
Fig. 35 - Cooling Charging Chart
B. Cleaning and Adjustment
XI. MAIN BURNERS
XVI. REPLACEMENT PARTS
D. High- and Low-PressureSwitches
XVII. DIAGNOSTIC LEDS
C. Condenser-FanMotor Protection
581A155225
Fig. 37 - Spark Gap Adjustment
581A180270, 581A240270, AND 581A155300
581A180360 AND 581A240360
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ECONOMIZER OPTION/ACCESSORY
TROUBLESHOOTING
Table 18 - Cooling Service Analysis
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Table 19 - Heating Service Analysis
Fig. 40 - IGC Control Heating and Cooling
CALL FOR FREE CATALOG
PACKAGED SERVICE TRAINING
Page
ELECTRICAL
TEMPERATURES
PRESSURES
GENERAL
