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Carrier 48HJ015-025 installation instructions Ð Base Unit Dimensions, 48HJ025

Models: 48HJ015-025

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Fig. 5 Ð Base Unit Dimensions, 48HJ025

MAXIMUM SHIPPING WEIGHT

Lb	Kg
2535	1150

NOTES:

1. Dimensions in ( ) are in millimeters.

2. Center of gravity.

3. Direction of air¯ow.

4. Ductwork to be attached to accessory roof curb only.

5. Minimum clearance:

a. Rear: 7 0 (2134) for coil removal. This dimen- sion can be reduced to 4 0 (1219) if conditions permit coil removal from the top.

b. 4 0 (1219) to combustible surfaces, all four sides (includes between units).

c. Left side: 4 0 (1219) for proper condenser coil air¯ow.

d. Front: 4 0 (1219) for control box access.

e. Right side: 4 0 (1219) for proper operation of

damper and power exhaust (if so equipped).

f. Top: 6 0 (1829) to assure proper condenser fan operation.

g. Bottom: 14 (356) to combustible surfaces (when not using curb).

h. Control box side: 3 0 (914) to ungrounded sur- faces (non-combustible).

i. Control box side: 3 6 (1067) to block or concrete walls, or other grounded surfaces.

j. Local codes or jurisdiction may prevail.

6. With the exception of clearance for the condenser coil and the damper/power exhaust as stated in Note No. 5, a removable fence or barricade requires no clearance.

7. Dimensions are from outside of corner post. Allow 0 -5¤16(8) on each side for top cover drip edge.

CORNER WEIGHT*

	A		B			C				D
Lb		Kg	Lb		Kg	Lb		Kg	Lb		Kg
523		237	541		245	574		260	596		270

*Weights are for unit only and do not include options or crating.

Fig. 5 Ð Base Unit Dimensions, 48HJ025

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Carrier 48HJ015-025 installation instructions Ð Base Unit Dimensions, 48HJ025

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