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Bryant 581A operation manual Roof Curb Details

Models: 581A

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Fig. 1 — Roof Curb Details

Fig. 1 — Roof Curb Details

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Bryant 581A operation manual Roof Curb Details

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. 2 - Shipping Rail Removal Fig. 3 - Rigging DetailsSHIPPING 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. 18 - Outdoor-AirHood Details Fig. 20 - Manual Damper DetailsFig. 19 - Outdoor-AirHood Assembled XIII. STEP 13 - INSTALL ALL ACCESSORIES XII. STEP 12 - NON-FUSEDDISCONNECTFig. 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-AirTemperatureTable 29 - CO2 Sensor Standard Settings XII. OPERATING SEQUENCEA. 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 EnthalpyG.EconoMi$er IV Troubleshooting Completion Table 37 - EconoMi$er IV Input/Output LogicFig. 44 - EconoMi$er IV Functional View CATALOG NO Copyright 2005 Bryant Heating & Cooling SystemsPage Page Page PRESSURES START-UPCHECKLISTTEMPERATURES ELECTRICAL