Manuals / Carrier / Household Appliance / Heating System

Carrier 48HJ015-025 installation instructions Packaged Service Training

Models: 48HJ015-025

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PACKAGED SERVICE TRAINING

Our packaged service training programs provide an excellent way to increase your knowledge of the equipment discussed in this manual. Product programs cover:

·	Unit Familiarization	·	Maintenance
·	Installation Overview	·	Operating Sequence

A large selection of product, theory, and skills programs is available. All programs include a video cassette and/or slides and a companion booklet. Use these for self teaching or to conduct full training sessions.

For a free Service Training Material Catalog (STM), call 1-800-962-9212. Ordering instructions are included.

Manufacturer reserves the right to discontinue, or change at any time, speci®cations or designs without notice and without incurring obligations.

Book	1	PC 111	Catalog No. 534-807	Printed in U.S.A.	Form 48HJ-9SI	Pg 30	2-95	Replaces: 48HJ-5SI
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Carrier 48HJ015-025 installation instructions Packaged Service Training

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 PipingStep 8 Ð Make Electrical Connections Fig. 14 Ð Field Power Wiring ConnectionsTable 2 Ð Electrical Data Step 9 Ð Make Outdoor-AirInlet Adjustments Fig. 15 Ð Field Control Thermostat WiringFig. 16 Ð 25% Outdoor-AirSection Details 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-FanAdjustmentTable 8 Ð Economizer Checkout Procedures Table 9 Ð High and Low Outdoor-AirTemperatureFig. 33 Ð Cooling Charging Chart, 48HJ015 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