Carrier 48HJD005-007 Power Wiring Connections, Low-Voltage Connections With or Without Economizer

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Fig. 8 — Power Wiring Connections

	LEGEND
C	— Contactor
COMPS — Compressors
EQUIP	— Equipment
GND	— Ground
IFC	— Indoor (Evaporator)
	Fan Contactor
NEC	— National Electrical Code
TB	— Terminal Block

Fig. 8 — Power Wiring Connections

RACEWAY LOW VOLTAGE

INTEGRATED GAS UNIT

CONNECTIONS

CONTROLLER (IGC)

		LEGEND
	AHA —		Adjustable Heat Anticipator	HOLE IN END PANEL (HIDDEN)
	CC	—	Cooling Compensator

	TC — Thermostat-Cooling			Fig. 10 — Field Control Wiring Raceway
	TH	—	Thermostat-Heating
			Field Wiring

Factory Wiring

NOTE: Connect Y2 when unit is equipped with an integrated economizer.

Fig. 9 — Low-Voltage Connections With or

Without Economizer

9

Image 9

Contents SAFETY CONSIDERATIONS CONTENTSINSTALLATION Step 1 - Provide Unit Support1′-4″ Fig. 1 - Roof Curb DetailsFig. 3 - Condensate Drain Pan Fig. 2 - Unit Leveling TolerancesStep 7 - Make Electrical Connections Table 1 - Physical Data Table 1 - Physical Data cont Fig. 5 - Base Unit Dimensions - 48HJ004-007 1/2″3/4″ Fig. 7 - Gas Piping Guide With Accessory Step 8 - Adjust Factory-Installed OptionsThru-the-Curb Service Connections Fig. 6 - Flue Hood DetailsFig. 8 - Power Wiring Connections Fig. 10 - Field Control Wiring RacewayFig. 9 - Low-Voltage Connections With or Without Economizer Never operate a motor where a phase imbalance in supply volt age is greater than 2%. Use the following formula to determinethe percent of voltage imbalance Table 2C - 48HJ High-Static Motor Units Without Electrical Convenience Outlet 208/230-V Unit Shown Fig. 11 - Accessory Field-Installed HumidistatFig. 15 - Durablade Economizer Installed in Unit Fig. 13 - Typical Access Panel LocationsFig. 16 - Horizontal Durablade Economizer Installation Fig. 14 - Outdoor-Air Hood DetailsFig. 19A - Durablade Economizer Damper Minimum Position Setting Wiring HarnessFig. 19B - Durablade Economizer Minimum Position Damper Setting Fig. 20 - Outdoor-Air Thermostat Enthalpy Control InstallationFig. 24 - Typical Access Panel Locations Relief Damper CharacteristicsFig. 25 - Exhaust Air Hood Assembly Fig. 22 - Durablade Economizer BarometricFig. 26 - Outdoor-Air Hood Assembly Fig. 28 - Rear EconoMi$er Flange InstallationFig. 27 - Completed Hood Assembly Fig. 29 - EconoMi$er InstalledFig. 33 - Typical Access Panel Locations Fig. 31 - EconoMi$er Sensor WiringFig. 32 - Wiring Diagram for Power Exhaust System POWER EXHAUST SYSTEM HIGH VOLTAGETable 4 - Default Potentiometer Settings Fig. 34 - Supply-Air Sensor PlacementFig. 35 - EconoMi$er Control Adjustment Potentiometers Factory SettingsStep 9 - Adjust Evaporator-Fan Speed - Ad Fig. 38 - Evaporator-Fan Pulley AdjustmentFig. 37 - Belt-Drive Motor Mounting Table 5A - 48HJ Fan Rpm at Motor Pulley Setting With Standard Motor Table 6 - Evaporator-Fan Motor Data - Standard MotorTable 7 - Evaporator-Fan Motor Data - High-Static Motors Table 8 - Motor Nominal Horsepower Table 9 - Outdoor Sound Power Total UnitBels Table 12 - 48HJ005 Fan Performance - Vertical Discharge Units With Standard Motor 3-Phase Units Single-Phase UnitsTable 16 - 48HJ007 Fan Performance - Vertical Discharge Units With Standard Motor Table 18 - 48HJ004 Fan Performance - Horizontal Discharge Units With Standard Motor Table 20 - 48HJ005 Fan Performance - Horizontal Discharge Units With Standard Motor 3-Phase Units Table 26 - Economizer Static Pressure Drop in. wg FIOP - Factory-Installed OptionTable 27 - FIOP MoistureMiser Dehumidification Package Static Pressure Drop in. wgSTART-UP PRE-START-UPHeating Operating SequenceTable 28 - Altitude Compensation When the supply-air temperature falls between 57 F and Fig. 39 - MoistureMiser Option Operation Lubrication SERVICEFig. 40 - Cleaning Condenser Coil Fig. 41 - Propping Up Top Panel Fig. 42 - Separating Coil SectionsFig. 43 - Condenser-Fan Adjustment Fig. 44 - Cooling Charging Chart Standard 48HJ004Fig. 45 - Cooling Charging Chart Standard 48HJ005 Fig. 47 - Cooling Charging Chart Standard 48HJ007 Fig. 46 - Cooling Charging Chart Standard 48HJ006Fig. 48 - Cooling Charging Chart, 48HJ004 with Optional MoistureMiser Dehumidification Package Fig. 52 - Burner Section Details Fig. 53 - Burner Tray Details Table 29 - LED Error Code DescriptionLOW HEAT 48HJE004, 48HJD005-007 - 72,000 BTUH INPUT Fig. 54 - Spark Gap AdjustmentMEDIUM AND HIGH HEAT 48HJE005-007, 48HJF004 - 115,000 BTUH INPUT 48HJF005-007 - 150,000 BTUH INPUTTable 30 - LED Error Code Service Analysis TROUBLESHOOTINGTable 32 - Durablade Economizer Service Analysis Table 31 - Heating Service AnalysisTable 34 - EconoMi$er Troubleshooting Table 33 - EconoMi$er Flash Code IdentificationCritical Table 35 - MoistureMiser Dehumidification Subcooler Service Analysis Compressor operates continuously Table 36 - Cooling Service Analysis208/230 3-Phase Unit Shown Fig. 55 - Typical Wiring Schematic and Component ArrangementNOTES FOR FIG LEGEND AND NOTES FOR FIGReplaces 48HJ-17SI Page I. PRELIMINARY INFORMATION START-UP CHECKLIST Remove and Store in Job FileII. PRE-START-UP insert checkmark in box as each item is completed III. START-UP