I. Preliminary Information, Iii. Start-Up | Carrier 48HJD005-007

START-UP CHECKLIST

START-UP CHECKLIST

(Remove and Store in Job File)

I. PRELIMINARY INFORMATION

MODEL NO.:________________________________	SERIAL NO.: ________________________________________
DATE:______________________________________	TECHNICIAN: _______________________________________
	BUILDING LOCATION: _______________________________

II.PRE-START-UP (insert checkmark in box as each item is completed)

VERIFY THAT ALL PACKING MATERIALS HAVE BEEN REMOVED FROM UNIT

REMOVE ALL SHIPPING HOLDDOWN BOLTS AND BRACKETS PER INSTALLATION INSTRUCTIONS VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTALLATION INSTRUCTIONS CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS

CHECK GAS PIPING FOR LEAKS

CHECK THAT RETURN INDOOR-AIR FILTER IS CLEAN AND IN PLACE

VERIFY THAT UNIT INSTALLATION IS LEVEL

CHECK FAN WHEEL AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE AND SETSCREW TIGHTNESS

III. START-UP

ELECTRICAL
SUPPLY VOLTAGE	L1-L2		L2-L3		L3-L1
COMPRESSOR AMPS	L1		L2		L3
INDOOR-FAN AMPS	L1		L2		L3

TEMPERATURES
OUTDOOR-AIR TEMPERATURE			DB
RETURN-AIR TEMPERATURE			DB				WB
COOLING SUPPLY AIR
GAS HEAT SUPPLY AIR
PRESSURES
GAS INLET PRESSURE				IN. WG
GAS MANIFOLD PRESSURE				IN. WG (HI FIRE)
REFRIGERANT SUCTION				PSIG				°F
REFRIGERANT DISCHARGE				PSIG				°F

VERIFY REFRIGERANT CHARGE USING CHARGING TABLES

VERIFY THAT 3-PHASE SCROLL COMPRESSOR ROTATING IN CORRECT DIRECTION

Copyright 2000 Carrier Corporation

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

Book	1	4	PC 111	Catalog No. 534-767	Printed in U.S.A.	Form 48HJ-18SI	Pg CL-1	9-00	Replaces: 48HJ-17SI
Tab	1a	6a

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Image 48

Carrier 48HJD005-007 START-UP CHECKLIST Remove and Store in Job File, I. Preliminary Information, Iii. Start-Up, Pressures

Contents

CONTENTS SAFETY CONSIDERATIONSINSTALLATION Step 1 - Provide Unit Support Fig. 1 - Roof Curb Details 1′-4″ Fig. 2 - Unit Leveling Tolerances Fig. 3 - Condensate Drain Pan Step 7 - Make Electrical Connections Table 1 - Physical Data Table 1 - Physical Data cont Fig. 5 - Base Unit Dimensions - 48HJ004-007 1/2″3/4″ Step 8 - Adjust Factory-Installed Options Fig. 7 - Gas Piping Guide With AccessoryThru-the-Curb Service Connections Fig. 6 - Flue Hood Details Fig. 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 Fig. 11 - Accessory Field-Installed Humidistat 208/230-V Unit Shown Fig. 13 - Typical Access Panel Locations Fig. 15 - Durablade Economizer Installed in UnitFig. 16 - Horizontal Durablade Economizer Installation Fig. 14 - Outdoor-Air Hood Details Wiring Harness Fig. 19A - Durablade Economizer Damper Minimum Position SettingFig. 19B - Durablade Economizer Minimum Position Damper Setting Fig. 20 - Outdoor-Air Thermostat Enthalpy Control Installation Relief Damper Characteristics Fig. 24 - Typical Access Panel LocationsFig. 25 - Exhaust Air Hood Assembly Fig. 22 - Durablade Economizer Barometric Fig. 28 - Rear EconoMi$er Flange Installation Fig. 26 - Outdoor-Air Hood AssemblyFig. 27 - Completed Hood Assembly Fig. 29 - EconoMi$er Installed Fig. 31 - EconoMi$er Sensor Wiring Fig. 33 - Typical Access Panel LocationsFig. 32 - Wiring Diagram for Power Exhaust System POWER EXHAUST SYSTEM HIGH VOLTAGE Fig. 34 - Supply-Air Sensor Placement Table 4 - Default Potentiometer SettingsFig. 35 - EconoMi$er Control Adjustment Potentiometers Factory Settings Step 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 Single-Phase Units 3-Phase Units Table 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 FIOP - Factory-Installed Option Table 26 - Economizer Static Pressure Drop in. wgTable 27 - FIOP MoistureMiser Dehumidification Package Static Pressure Drop in. wg PRE-START-UP START-UP Heating Operating SequenceTable 28 - Altitude Compensation When the supply-air temperature falls between 57 F and Fig. 39 - MoistureMiser Option Operation SERVICE LubricationFig. 40 - Cleaning Condenser Coil Fig. 41 - Propping Up Top Panel Fig. 42 - Separating Coil Sections Fig. 43 - Condenser-Fan Adjustment Fig. 44 - Cooling Charging Chart Standard 48HJ004Fig. 45 - Cooling Charging Chart Standard 48HJ005 Fig. 46 - Cooling Charging Chart Standard 48HJ006 Fig. 47 - Cooling Charging Chart Standard 48HJ007 Fig. 48 - Cooling Charging Chart, 48HJ004 with Optional MoistureMiser Dehumidification Package Table 29 - LED Error Code Description Fig. 52 - Burner Section Details Fig. 53 - Burner Tray Details Fig. 54 - Spark Gap Adjustment LOW HEAT 48HJE004, 48HJD005-007 - 72,000 BTUH INPUTMEDIUM AND HIGH HEAT 48HJE005-007, 48HJF004 - 115,000 BTUH INPUT 48HJF005-007 - 150,000 BTUH INPUT TROUBLESHOOTING Table 30 - LED Error Code Service Analysis Table 31 - Heating Service Analysis Table 32 - Durablade Economizer Service Analysis Table 34 - EconoMi$er Troubleshooting Table 33 - EconoMi$er Flash Code IdentificationCritical Table 35 - MoistureMiser Dehumidification Subcooler Service Analysis Table 36 - Cooling Service Analysis Compressor operates continuously Fig. 55 - Typical Wiring Schematic and Component Arrangement 208/230 3-Phase Unit Shown LEGEND AND NOTES FOR FIG NOTES FOR FIG Replaces 48HJ-17SI Page START-UP CHECKLIST Remove and Store in Job File I. PRELIMINARY INFORMATIONII. PRE-START-UP insert checkmark in box as each item is completed III. START-UP