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Bryant 581A operation manual

Models: 581A

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Bryant 581A operation manual

Contents

INSTALLATION I. STEP 1 - PROVIDE UNIT SUPPORT CONTENTSXI. Step 11 - Position Optional Power SAFETY CONSIDERATIONSII. STEP 2 - REMOVE SHIPPING RAILS C. Installation Onto CurbB. Alternate Unit Support C. Slab Mount Horizontal Units OnlyFig. 1 - Roof Curb Details Fig. 3 - Rigging Details Fig. 2 - Shipping Rail RemovalSHIPPING RAILS Fig. 4 - Base Unit Dimensions Table 1 - Physical Data Page Page IV. STEP 4 - FIELD FABRICATE DUCTWORK A. Vertical ConfigurationFig. 5 - Alignment Hole Details Fig. 6 - Alignment Hole LocationFig. 9 - Concentric Duct Details VI. STEP 6 - INSTALL FLUE HOOD AND INLET HOODVIII. STEP 8 - INSTALL GAS PIPING Fig. 11 - Combustion Fan Housing LocationFig. 13 - Condensate Drain Piping Details A. Field Power SupplyB. Field Control Wiring Fig. 12 - Condensate Drain DetailsFig. 17 - Outdoor-AirHood Component Fig. 15 - Field Power Wiring ConnectionsX. STEP 10 - INSTALL OUTDOOR-AIRHOOD A. Manual Damper AssemblyPage Page Fig. 20 - Manual Damper Details Fig. 18 - Outdoor-AirHood DetailsFig. 19 - Outdoor-AirHood Assembled XII. STEP 12 - NON-FUSEDDISCONNECT XIII. STEP 13 - INSTALL ALL ACCESSORIESFig. 22 - Bracket and Hood Positioning START-UP III. REFRIGERANT SERVICE PORTSVI. INTERNAL WIRING PRE-START-UPXI. GAS HEAT VIII. CONDENSER FANS AND MOTORSIX. RETURN-AIRFILTERS X. OUTDOOR-AIRINLET SCREENSPage Page Page Page GENERAL NOTES FOR TABLES Page Page Page Page Table 23 - Power Exhaust Fan Performance Table 24 - Operation Air Quantity Limits Table 25 - Evaporator Fan Motor SpecificationsA. EconoMi$er IV Standard Sensors Table 26 - Accessory/FIOP Static Pressure in. wgTable 27 - Fan Rpm at Motor Pulley Settings XII. OPTIONAL ECONOMI$ERSet Points Fig. 24 - Supply-AirTemperature Sensor LocationFig. 25 - Outdoor-AirTemperature Changeover Table 28 - EconoMi$er IV Sensor UsageFig. 26 - EconoMi$er IV Wiring APPROXIMATE DRY BULB TEMPERATURE- F C Fig. 29 - CO2 Sensor Maximum Range SettingFig. 27 - Enthalpy Changeover Set Points LED LocationsOA = Percent of Outdoor Air TO = Outdoor-AirTemperatureTR = Return-AirTemperature TM = Mixed-AirTemperatureXII. OPERATING SEQUENCE Table 29 - CO2 Sensor Standard SettingsA. Cooling, Units Without Economizer B. Heating, Units Without Economizer SERVICEI. CLEANING A. Coil Maintenance and Cleaning RecommendationE. Main Burner B.Condensate DrainC. Filters D. Outdoor-AirInlet ScreensII. LUBRICATION A. Compressors III. EVAPORATOR FAN SERVICE AND REPLACEMENTF. Flue Gas Passageways G. Combustion-AirBlowerFig. 32 - Evaporator-FanMotor Adjustment V.BELT TENSION ADJUSTMENTTable 30 - Belt Tension Adjustment VI. CONDENSER-FANADJUSTMENT FigFig. 35 - Cooling Charging Chart - 581A210 Units VII. POWER FAILUREC. To Use the Cooling Charging Chart IX. GAS VALVE ADJUSTMENT A. Natural GasTable 31 - Altitude Compensation Natural Gas B.Cleaning and AdjustmentX.MAIN BURNERS A.Main Burner RemovalFig. 39 - Spark Gap Adjustment B. High-Pressureand Low-PressureSwitchesXV. REPLACEMENT PARTS XVI. DIAGNOSTIC LEDsLEGEND 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 TROUBLESHOOTINGTable 35 - Heating Service Analysis Table 36 - IGC Board LED Alarm CodesFig. 43 - IGC Control Heating and Cooling C.Single Enthalpy II.ECONOMI$ER IV TROUBLESHOOTINGA. EconoMi$er IV Preparation B. Differential EnthalpyTable 37 - EconoMi$er IV Input/Output Logic G.EconoMi$er IV Troubleshooting CompletionFig. 44 - EconoMi$er IV Functional View CATALOG NO Copyright 2005 Bryant Heating & Cooling SystemsPage Page Page PRESSURES START-UPCHECKLISTTEMPERATURES ELECTRICAL