Manuals / Carrier / Household Appliance / Air Conditioner

Carrier 48HE003---006 48HE,HJ, Humidistat Wiring 208/230-VUnit Shown, Damper Installed, Splice

Models: 48HJ004---007 48HE003---006

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Terminal (Unmarked)

48HE,HJ

		LEGEND
CB	— Circuit Breaker	Terminal (Unmarked)
CR	— Cooling Relay	Terminal (Unmarked)
CR	— Cooling Relay
DHR	— Dehumidify Relay	Splice
DSV	— Discharge Solenoid Valve	Factory Wiring
HR	— Heater Relay	Factory Wiring
LPS	— Low Pressure Switch	Field Control Wiring
LSV	— Liquid Solenoid Valve	Field Control Wiring
LTLO	— Low Temperature Lockout	Field Power Wiring
	Field Splice	Field Power Wiring
	Field Splice
	Fig. 18 ---Typical Humidi-MiZertAdaptive Dehumidification System					C06128

		Humidistat Wiring (208/230-V Unit Shown)
LCT			ROOF TOP UNIT
R			R
C			C
Y1			Y1
Y2			Y2
G			G
W1			W1
W2			W2	CB
DEHUM		R1		CB
OC			PINK	3.2 AMPS	RED
OC	TSTATWIRES					24 V


		R1	PINK	LTLO	PINK FROM
	LEGEND			LTLO

						HUMIDI-MIZER SYSTEM
CB — Circuit Breaker						HUMIDI-MIZER SYSTEM
CB — Circuit Breaker						LLSV

LCT — Light Commercial Thermidistat™ Device

LLSV — Liquid Line Solenoid Valve

LTLO — Low Temperature Lockout

HUMIDI-MIZER SYSTEM

C06129

Fig. 19 ---Typical Rooftop Unit with Humidi-Mizer

Adaptive Dehumidification System with Thermidistat Device

OUTDOOR

AIR OPENING

PANEL

3 SCREWS (SIDE)

C06130

Fig. 20 ---Damper Panel with Manual Outdoor-Air

Damper Installed

C06013

Fig. 21 ---Outdoor-Air Hood Details

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Image 18

Carrier 48HE003---006 48HE,HJ, Humidistat Wiring 208/230-VUnit Shown, Damper Panel with Manual Outdoor-Air, Splice

Contents

48HJ004---007 48HE003---006 SAFETY CONSIDERATIONSInstallation Instructions ELECTRICAL SHOCK HAZARDSLAB MOUNT Horizontal Units Only INSTALLATIONStep 3 -InstallExternal Trap for Condensate Drain FIRE, EXPLOSION HAZARD48HE,HJ Fig. 2 --- Roof Curb Details48HJ004-007 PROPERTY DAMAGE HAZARD Step 5 -InstallFlue HoodStep 6 -InstallGas Piping positioningPROPERTY DAMAGE HAZARD 48HE,HJFig. 7 --- Roof Curb Alignment FIRE, EXPLOSION HAZARDFig. 8 --- 48HJ004-007Base Unit Dimensions 48HE,HJC06112 Fig. 9 --- 48HE003-006Base Unit Dimensions 48HE,HJC06113 field power supply Fig. 11 --- Gas Piping Guide With AccessoryThru-the-CurbService Connections field control wiring48HE,HJ Table 1-PhysicalData 48HJ48HE,HJ TABLE 1 - PHYSICAL DATA 48HJ contTable 2-PHYSICALDATA 48HE 48HE,HJ TABLE 2 - PHYSICAL DATA 48HE cont48HE,HJ Fig. 12 --- Power Wiring ConnectionsFig. 15 --- Field Control Wiring CONTROL48HE,HJ Table 3-ElectricalData 48HE48HE003---006 48HE,HJ Table 4-ElectricalData 48HJ48HE,HJ Table 4-ElectricalData 48HJ contFig. 16 --- Accessory Field-InstalledHumidistat Step 8 -Adjust Factory-InstalledOptionscobra energy recovery units AssemblyLTLO - Low Temperature Lockout Humidistat Wiring 208/230-VUnit ShownDamper Installed Factory WiringOutdoor Air Temperature Sensor OAT Fig. 23 --- Outdoor-AirDamper Position SettingInstall the Supply Air Temperature SAT Sensor Install the Indoor Air Quality CO2 Sensor48HE,HJ TEMPERATURE SENSORTEMPERATURE SENSOR Table 5-PremierLink Sensor Usage48HE,HJ Fig. 25 --- PremierLinktController InstalledFig. 26 --- Typical PremierLink Control Wiring PremierLinkFig. 28 --- Differential Enthalpy Control 48HE,HJReturn Air Enthalphy Sensor Sensor and Mounting Plate 33AMKITENT006Outdoor Air Temperature OAT Sensor Fig. 31 --- Typical Access Panel LocationsFig. 33 --- Indoor Coil Access Panel Relocation 48HE,HJFig. 35 --- Filter Installation Supply Air Temperature SAT SensorTable 6-SupplyAir Sensor Temperature 48HE,HJEconoMi$er IV Wiring 48HE,HJOutdoor Enthalpy Changeover Differential Enthalphy Control Exhaust Set Point Adjustment48HE,HJ Fig. 39 --- Outdoor-AirDamper Leakage48HE,HJ Fig. 43 --- Outside Air TemperatureFig. 44 --- Return Air Temperature or Enthalpy Minimum Position ControlFig. 45 --- Enthalpy Changeover Set Points 48HE,HJ+ TR Demand Controlled Ventilation DCVStep 9 -Adjust Evaporator-FanSpeed Fig. 47 --- CO2 Sensor Maximum Range SettingCO2 Sensor Configuration 48HE,HJ48HE,HJ Table 8-CO2 Sensor Standard SettingsFig. 50 --- Indoor-FanPulley Adjustment Fig. 49 --- Belt Drive Motor MountingTable 12-Accessorystatic pressure 48HE,HJTable 11-Evaporator-FanMotor Data - Standard Motor Table 15-48HEOutdoor Sound Power Total Unit GENERAL FAN PERFORMANCE NOTESTable 14-48HJOutdoor Sound Power Total Unit 48HE,HJ48HE,HJ Belt DriveBelt Drive 48HE,HJ Belt Drive48HE,HJ Standard Motor Belt Drive48HE,HJ Standard Motor Belt Drive48HE,HJ AIRFLOW48HE,HJ 107548HE,HJ Belt DriveBelt Drive 48HE,HJ Belt DriveBelt Drive 48HE,HJ Standard Motor Belt Drive48HE,HJ Standard Motor Belt Drive48HE,HJ 0.8048HE,HJ 0.64Step 6 -InternalWiring PRE-START-UPSTART-UP Step 7 -RefrigerantService PortsStep 11 -MainBurners 48HE,HJStep 10 -Cooling Table 37-AltitudeCompensationStep 14 -VentilationContinuous Fan Step 13 -SafetyRelief48HE,HJ Step 15 -OperatingSequence48HE,HJ Fig. 51 --- DX Cooling TemperatureFig. 52 --- Economizer Temperature Routine 3 OATSubcooling Mode UNITS WITH HUMIDI-MIZER ADAPTIVEDEHUMIDIFICATION SYSTEM Normal Design Operation Fig. 53 --- Humidi-MiZerNormalFig. 56 --- Cleaning Condenser Coil SERVICEStep 1 -Cleaning 48HE,HJ48HE,HJ Step 3 -Condenser-FanAdjustmentStep 6 -HighPressure Switch Fig. 57 --- Propping Up Top PanelFig. 61 --- Cooling Charging Chart Step 7 -Loss-of-ChargeSwitchFig. 60 --- Cooling Charging Chart 48HE,HJFig. 63 --- Cooling Charging Chart Fig. 62 --- Cooling Charging ChartFig. 64 --- Cooling Charging Chart, 48HJ004 with Fig. 65 --- Cooling Charging Chart, 48HJ005 withTO USE COOLING CHARGING CHART, STANDARD UNIT Fig. 66 --- Cooling Charging Chart, 48HJ005 withFig. 67 --- Cooling Charging Chart, 48HJ007 with 48HE,HJFig. 70 --- Cooling Charging Chart Fig. 68 --- Cooling Charging ChartFig. 69 --- Cooling Charging Chart Fig. 71 --- Cooling Charging Chart48HE,HJ Step 12 -LimitSwitchTable 40-LEDError Code Description Step 13 -BurnerIgnition5. Reinstall burner rack as described above Fig. 74 --- Spark Gap AdjustmentCleaning and Adjustment Step 15 -ReplacementParts48HE,HJ Contactor, CompressorStep 2 -Economi$erIV Troubleshooting TROUBLESHOOTINGStep 1 -UnitTroubleshooting economi$er IV troubleshooting completionTable 41-LEDError Code Service Analysis 48HE,HJCOMPONENT DAMAGE HAZARD Table 42- Heating Service Analysis 48HE,HJTable 45-CoolingService Analysis 48HE,HJ48HE,HJ Table 46-EconoMi$erIV Input/Output LogicFig. 76 --- EconoMi$er IV Functional View I. PRELIMINARY INFORMATION START-UPCHECKLIST Remove and Store in Job FileTEMPERATURES III.START-UP