Manuals / Carrier / Household Appliance / Heating System

Carrier 48HJ015-025 installation instructions

Models: 48HJ015-025

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Fig. 39 Ð Typical Component Arrangement (48HJ025 Shown)

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Carrier 48HJ015-025 installation instructions

Contents

SAFETY CONSIDERATIONS Installation InstructionsCONTENTS INSTALLATION Step 1 Ð Provide Unit SupportCURB ACCESSORYFig. 1 Ð Roof Curb and Horizontal Adapter Details DESCRIPTIONand Horizontal Adapter Details Dimension AFig. 2 Ð Horizontal Supply/Return Curb Instructions continued on pageTable 1 Ð Physical Data Fig. 4 Ð Base Unit Dimensions, 48HJ015,017 Fig. 5 Ð Base Unit Dimensions, 48HJ025 Fig. 7 Ð Concentric Duct Air Distribution Fig. 6 Ð Air Distribution Ð Through-the-Bottom48HJ017 and 025 Shown 48HJ017 and 025 ShownFig. 12 Ð Condensate Drain Piping Details Fig. 10 Ð Combustion Fan Housing LocationFig. 11 Ð Condensate Drain Details Fig. 13 Ð Field Gas PipingTable 2 Ð Electrical Data Step 8 Ð Make Electrical ConnectionsFig. 14 Ð Field Power Wiring Connections Fig. 16 Ð 25% Outdoor-AirSection Details Step 9 Ð Make Outdoor-AirInlet AdjustmentsFig. 15 Ð Field Control Thermostat Wiring Module Location Fig. 17 Ð Economizer Damper Assembly Ð End ViewFig. 19 Ð Economizer Motor Control Fig. 20 Ð Outdoor-AirHood Component LocationSTART-UP AIRFLOW AIRFLOW Table 4 Ð Fan Performance Data, 48HJ017 Units Table 5 Ð Fan Performance Data, 48HJ025 Units Fig. 24 Ð Fan Performance Using AccessoryPower Exhaust Table 6 Ð Air Quantity LimitsBase Unit Operation Fig. 26 Ð Typical Heating Section With Fig. 25 Ð Typical Gas Heating Section48HJE015, 48HJE017, and 48HJD025 Shown Main Burners RemovedEvaporator Fan, 48HJ015 Units Fig. 28 Ð Evaporator-FanAlignment and AdjustmentFig. 29 Ð 48HJ015 Evaporator-Fan Motor Adjustment Evaporator Fan, 48HJ017,025 UnitsMotor Section Fig. 31 Ð Condenser Fan Adjustment Belt Tension Adjustment Ð To adjust belt tensionCondenser-FanAdjustment 48HJ015,017 Fig. 32 Ð Condenser-FanAdjustmentFig. 33 Ð Cooling Charging Chart, 48HJ015 Table 8 Ð Economizer Checkout ProceduresTable 9 Ð High and Low Outdoor-AirTemperature Fig. 34 Ð Cooling Charging Chart, 48HJ017 Pilot AdjustmentGas Valve Adjustment Fig. 35 Ð Cooling Charging Chart, 48HJ025Protective Devices Fig. 38 Ð Typical Wiring Schematic 48HJ025 Shown Page Page LEGEND FOR FIG. 38 and Page Page PACKAGED SERVICE TRAINING Page ELECTRICAL START-UPCHECKLISTTEMPERATURES PRESSURES