Carrier 48HJD005-007 specifications Adjust Factory-Installed Options, Flue Hood Details

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Fig. 6 — Flue Hood Details

Fig. 6 — Flue Hood Details

LEGEND

NFGC — National Fuel Gas Code *Field supplied.

NOTE: Follow all local codes.

SPACING OF SUPPORTS

STEEL PIPE

SPACING OF SUPPORTS

NOMINAL DIAMETER

X DIMENSION

(in.)

(ft)

1/2

6

3/4 or 1

8

11/4 or larger

10

Fig. 7 — Gas Piping Guide (With Accessory

Thru-the-Curb Service Connections)

Install conduit through side panel openings indicated in Fig. 5. Route power lines through connector to terminal con- nections as shown in Fig. 8.

Voltage to compressor terminals during operation must be within voltage range indicated on unit nameplate (also see Tables 2A-2D). On 3-phase units, voltages between phases must be balanced within 2% and the current within 10%. Use the formula shown in Tables 2A-2D, Note 2 to determine the percent voltage imbalance. Operation on improper line voltage or excessive phase imbalance constitutes abuse and may cause damage to electrical components. Such operation would invali- date any applicable Carrier warranty.

NOTE: If accessory thru-the-bottom connections and roof curb are used, refer to the Thru-the-Bottom Accessory Installation Instructions for information on power wiring and gas connec- tion piping. The power wiring, control wiring and gas piping can be routed through field-drilled holes in the basepan. The basepan is specially designed and dimpled for drilling the access connection holes.

FIELD CONTROL WIRING — Install a Carrier-approved accessory thermostat assembly according to installation in- structions included with the accessory. Locate thermostat assembly on a solid wall in the conditioned space to sense aver- age temperature in accordance with thermostat installation instructions.

Route thermostat cable or equivalent single leads of colored wire from subbase terminals through connector on unit to low- voltage connections (shown in Fig. 9).

Connect thermostat wires to matching screw terminals of low-voltage connection board. See Fig. 9.

NOTE: For wire runs up to 50 ft, use no. 18 AWG (American Wire Gage) insulated wire (35 C minimum). For 50 to 75 ft, use no. 16 AWG insulated wire (35 C minimum). For over 75 ft, use no. 14 AWG insulated wire (35 C minimum). All wire larger than no. 18 AWG cannot be directly connected to the thermostat and will require a junction box and splice at the thermostat.

Pass the control wires through the hole provided in the cor- ner post; then feed wires through the raceway built into the cor- ner post to the 24-v barrier located on the left side of the control box. See Fig. 10. The raceway provides the UL required clear- ance between high- and low-voltage wiring.

HEAT ANTICIPATOR SETTINGS — Set heat anticipator set- tings at .14 amp for first stage and .14 for second stage heating, when available.

Step 8 — Adjust Factory-Installed Options

MOISTUREMISER DEHUMIDIFICATION PACKAGE — MoistureMiser package operation can be controlled by field installation of a Carrier-approved humidistat (Fig. 11). To install the humidistat:

1.Route humidistat cable through hole provided in unit cor- ner post.

2.Feed wires through the raceway built into the corner post to the 24-v barrier located on the left side of the control box. See Fig. 10. The raceway provides the UL-required clearance between high- and low-voltage wiring.

3.Use a wire nut to connect humidistat cable into low- voltage wiring as shown in Fig. 12.

APOLLO CONTROL — The optional Apollo control is used to actively monitor all modes of operation as well as indoor (evaporator) fan status, filter status, and indoor-air quality. The Apollo control is designed to work with Carrier TEMP and VVT® systems.

The thermostat must be wired to the Apollo Control before starting the unit. Refer to the Apollo Control installation instructions for information on installing the thermostat.

DISCONNECT SWITCH — The optional disconnect switch is non-fused. The switch has the capability of being locked in place for safety purposes.

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Contents CONTENTS SAFETY CONSIDERATIONSINSTALLATION Step 1 - Provide Unit SupportFig. 1 - Roof Curb Details 1′-4″Fig. 2 - Unit Leveling Tolerances Fig. 3 - Condensate Drain PanStep 7 - Make Electrical Connections Table 1 - Physical Data Table 1 - Physical Data cont 3/4″ Fig. 5 - Base Unit Dimensions - 48HJ004-0071/2″ Step 8 - Adjust Factory-Installed Options Fig. 7 - Gas Piping Guide With AccessoryThru-the-Curb Service Connections Fig. 6 - Flue Hood DetailsFig. 9 - Low-Voltage Connections With or Without Economizer Fig. 8 - Power Wiring ConnectionsFig. 10 - Field Control Wiring Raceway the percent of voltage imbalance Never operate a motor where a phase imbalance in supply voltage is greater than 2%. Use the following formula to determine Table 2C - 48HJ High-Static Motor Units Without Electrical Convenience Outlet Fig. 11 - Accessory Field-Installed Humidistat 208/230-V Unit ShownFig. 13 - Typical Access Panel Locations Fig. 15 - Durablade Economizer Installed in UnitFig. 16 - Horizontal Durablade Economizer Installation Fig. 14 - Outdoor-Air Hood DetailsWiring Harness Fig. 19A - Durablade Economizer Damper Minimum Position SettingFig. 19B - Durablade Economizer Minimum Position Damper Setting Fig. 20 - Outdoor-Air Thermostat Enthalpy Control InstallationRelief Damper Characteristics Fig. 24 - Typical Access Panel LocationsFig. 25 - Exhaust Air Hood Assembly Fig. 22 - Durablade Economizer BarometricFig. 28 - Rear EconoMi$er Flange Installation Fig. 26 - Outdoor-Air Hood AssemblyFig. 27 - Completed Hood Assembly Fig. 29 - EconoMi$er InstalledFig. 31 - EconoMi$er Sensor Wiring Fig. 33 - Typical Access Panel LocationsFig. 32 - Wiring Diagram for Power Exhaust System POWER EXHAUST SYSTEM HIGH VOLTAGEFig. 34 - Supply-Air Sensor Placement Table 4 - Default Potentiometer SettingsFig. 35 - EconoMi$er Control Adjustment Potentiometers Factory SettingsFig. 37 - Belt-Drive Motor Mounting Step 9 - Adjust Evaporator-Fan Speed - AdFig. 38 - Evaporator-Fan Pulley Adjustment Table 7 - Evaporator-Fan Motor Data - High-Static Motors Table 5A - 48HJ Fan Rpm at Motor Pulley Setting With Standard MotorTable 6 - Evaporator-Fan Motor Data - Standard Motor Bels Table 8 - Motor Nominal HorsepowerTable 9 - Outdoor Sound Power Total Unit Table 12 - 48HJ005 Fan Performance - Vertical Discharge Units With Standard Motor Single-Phase Units 3-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 FIOP - Factory-Installed Option Table 26 - Economizer Static Pressure Drop in. wgTable 27 - FIOP MoistureMiser Dehumidification Package Static Pressure Drop in. wgPRE-START-UP START-UPTable 28 - Altitude Compensation HeatingOperating Sequence 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 SectionsFig. 45 - Cooling Charging Chart Standard 48HJ005 Fig. 43 - Condenser-Fan AdjustmentFig. 44 - Cooling Charging Chart Standard 48HJ004 Fig. 46 - Cooling Charging Chart Standard 48HJ006 Fig. 47 - Cooling Charging Chart Standard 48HJ007Fig. 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 DetailsFig. 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 INPUTTROUBLESHOOTING Table 30 - LED Error Code Service AnalysisTable 31 - Heating Service Analysis Table 32 - Durablade Economizer Service AnalysisCritical Table 34 - EconoMi$er TroubleshootingTable 33 - EconoMi$er Flash Code Identification Table 35 - MoistureMiser Dehumidification Subcooler Service Analysis Table 36 - Cooling Service Analysis Compressor operates continuouslyFig. 55 - Typical Wiring Schematic and Component Arrangement 208/230 3-Phase Unit ShownLEGEND AND NOTES FOR FIG NOTES FOR FIGReplaces 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
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