Table Of Contents - Carrier 48HJD005-007 Installation, Start-Up And Service Instructions Manual

Table of Contents

Safety Considerations1
Installation1
Table Of Contents1
Step 1 - Provide Unit Support1
Roof Curb Details2
Unit Leveling Tolerances3
Step 2 - Field Fabricate Ductwork3
Step 3 - Install External Trap For Condensate Drain3
Step 4 - Rig And Place Unit3
Rigging Details4
Step 5 - Install Flue Hood4
Step 6 - Install Gas Piping4
Step 7 - Make Electrical Connections4
Field Power Supply4
Physical Data5
Base Unit Dimensions-48Hj004-0077
Gas Piping Guide (With Accessory Thru-The-Curb Service Connections)8
Step 8 - Adjust Factory-Installed Options8
Moisturemiser Dehumidifcation Package8
Apollo Control8
Disconnect Switch8
Power Wiring Connections9
Low-Voltage Connections With Or Without Economizer9
Field Control Wiring Raceway9
48Hj Electrical Data Standard Motor (Units Without Electrical Convenience Outlet)10
48Hj High-Static Motor Units Without Electrical Convenience Outlet11
48Hj High-Static Motor Units With Electrical Convenience Outlet11
Assembly12
Accessory Field-Installed Humidistat12
Typical Moisturemiser Dehumidification Package Humidistat Wiring (208/230-V Unit Shown)12
Typical Access Panel Locations13
Outdoor-Air Hood Details13
Horizontal Durablade Economizer Installation13
Horizontal Discharge Block-Off Plate13
Typical Durablade Economizer And Wiring Harness14
Durablade Economizer Damper Minimum Position Setting14
Durablade Economizer Minimum Position Damper Setting14
Outdoor-Air Thermostat/Enthalpy Control Installation14
Durablade Economizer Barometric Relief Damper Characteristics15
Economizer Component Locations15
Exhaust Air Hood Assembly15
Outdoor-Air Hood Assembly16
Completed Hood Assembly16
Rear Economiser Flange Installation16
Economiser Wiring16
Economiser Sensor Wiring17
Typical Access Panel Locations (Standard Efficiency Unit Shown)17
Wiring Diagram For Power Exhaust System17
Supply-Air Sensor Placement18
Changeover Set Points18
Default Potentiometer Settings18
Ventilation Air (Minimum Position Set Up)18
Evaporator-Fan Pulley Adjustment19
Step 9 - Adjust Evaporator-Fan Speed19
Belt-Drive Motors19
48Hj Fan Rpm At Motor Pulley Setting With Standard Motor20
48Hj Fan Rpm At Motor Pulley Setting With High Static Motor20
Evaporator-Fan Motor Data-Standard Motor20
Evaporator-Fan Motor Data-High-Static Motors20
Motor Nominal Horsepower21
Outdoor Sound Power (Total Unit)21
48Hj004 Fan Performance-Vertical Discharge Units With Standard Motor21
48Hj004 Fan Performance-Vertical Discharge Units With High-Static Motor21
48Hj005 Fan Performance-Vertical Discharge Units With Standard Motor22
48Hj005 Fan Performance-Vertical Discharge Units With High-Static Motor22
48Hj006 Fan Performance-Vertical Discharge Units With Standard Motor23
48Hj006 Fan Performance-Vertical Discharge Units With High-Static Motor23
48Hj007 Fan Performance-Vertical Discharge Units With Standard Motor24
48Hj007 Fan Performance-Vertical Discharge Units With High-Static Motor24
48Hj004 Fan Performance-Horizontal Discharge Units With Standard Motor25
48Hj004 Fan Performance-Horizontal Discharge Units With High-Static Motor25
48Hj005 Fan Performance-Horizontal Discharge Units With Standard Motor26
48Hj005 Fan Performance-Horizontal Discharge Units With High-Static Motor26
48Hj006 Fan Performance-Horizontal Discharge Units With Standard Motor27
48Hj006 Fan Performance—Horizontal Discharge Units With High-Static Motor27
48Hj007 Fan Performance—Horizontal Discharge Units With Standard Motor28
48Hj007 Fan Performance—Horizontal Discharge Units With High-Static Motor28
Economizer Static Pressure Drop (In. Wg)28
Fiop Moisturemiser Dehumidification Package Static Pressure Drop (In. Wg)28
Pre-Start-Up29
Start-Up29
Refrigerant Service Ports29
Compressor Rotation29
Cooling30
Altitude Compensation30
Heating30
Operating Sequence30
Moisturemiser Option Operation32
Service33
Cleaning33
Lubrication33
Condenser-Fan Adjustment34
Loss-Of-Charge Switch34
Freeze-Stat34
Refrigerant Charge34
Flue Gas Passageways35
Combustion-Air Blower35
Limit Switch35
Cooling Charging Chart, 48Hj004 With Optional Moisturemiser Dehumidification Package36
Cooling Charging Chart, 48Hj006 With Optional Moisturemiser Dehumidification Package36
Cooling Charging Chart, 48Hj005 With Optional Moisturemiser Dehumidification Package36
Cooling Charging Chart, 48Hj007 With Optional Moisturemiser Dehumidification Package36
Burner Ignition37
Led Error Code Description37
Main Burners37
Replacement Parts37
Spark Gap Adjustment38
Troubleshooting39
Led Error Code Service Analysis39
Heating Service Analysis40
Durablade Economizer Service Analysis40
Economiser Flash Code Identification41
Economiser Troubleshooting41
Moisturemiser Dehumidification Subcooler Service Analysis42
Cooling Service Analysis43
Typical Wiring Schematic And Component Arrangement (208/230 3-Phase Unit Shown)44
Start-Up Checklist48