Bryant 551A operation manual

Contents II. RIG and Place Unit ContentsSafety Considerations Installation Provide Unit SupportRoof Curb Details 240 Unit Maximum Dimensions Shipping WeightFt-in 155 1801039 1054 559 180 1650 748 36.3 375 170 449 204 452 Unit STD Unit ECONOMI$ER Corner DIM a DIM B DIM C Weight551A Ft-in 155 1575 714 36.3 407 185 375 170 383 174 410Base Unit Dimensions, 551A240 155 180 240 Physical Data551A180 and 240 Shown 551A155 Shown III. Field Fabricate DuctworkIV. Make Unit Duct Connections Trap Condensate DrainNEC Field Control WiringUnit Voltage FLA LRA MCA MOCP† Electrical DataPER Electric Resistance Heater DataUnit Heater Maximum Minimum Heater AmpsManual Outdoor-Air Damper VII. Make OUTDOOR-AIR Inlet AdjustmentsOptional Non-Fused Disconnect Optional Convenience OutletUnit Stage Heat Anticipator SettingsVIII. Install OUTDOOR-AIR Hood Outdoor Air Enthalpy Sensor InstallationDischarge Air Thermistor DAT CO2 Control SetupMechanical Cooling Lockout Dry Bulb Changeover Set UpEconoMi$er Switchover Control Strategy Default Potentiometer SettingsMotormaster I Control Installation 551A155 and 180 Only Ventilation Air Minimum Position Set UpIX. Install ALL Accessories Wind Baffle Details Motormaster III Control Installation 551A240 OnlyLPS LlsvSTART-UP III. Refrigerant Service PortsInternal Wiring XI. Accessory ECONOMI$ER AdjustmentUnits With Perfect Humidity Dehumidification Package Freeze Protection ThermostatsFan Performance 551A155 With Standard Indoor Fan Motor Watts Bhp Rpm 3750 Cfm Rpm Watts BhpWatts Bhp 5700 551A180 15 Tons4800 5100500 551A240 20 TonsWatts Bhp Rpm Bhp Rpm Watts 000Drop Accessory/FIOP Static Pressure in. wgEvaporator Fan Motor Specifications Fan RPM at Motor Pulley SettingsII. Lubrication Service CleaningIV. Evaporator FAN Service and Replacement Belt Tension Adjustment Evaporator-Fan Pulley Alignment AdjustmentVII. ECONOMI$ER Adjustment VI. CONDENSER-FAN AdjustmentXI. Protective Devices VIII. Power FailureIX. Refrigerant Charge Filter DrierXIII. Control Circuit XIV. Replacement PartsXVI. Optional Hinged Access Doors XII. Relief DevicesTypical Wiring Schematic 551A180, 460v Shown Typical Component Arrangement 551A180 Shown Problem Cause Remedy TroubleshootingCooling Service Analysis Problem Potential Cause Remedy EconoMi$er TroubleshootingPage General TemperaturesElectrical