Carrier 48HE003---006 Return Air Enthalphy Sensor, EconoMi$er IV Component Locations

Page 22

1.Use a 4-conductor, 18 or 20 AWG cable to connect the enthalpy control to the PremierLinkcontroller and power transformer.

2.Connect the following 4 wires from the wire harness located in rooftop unit to the enthalpy controller:

a.Connect the BRN wire to the 24 vac terminal (TR1) on enthalpy control and to pin 1 on 12-pin harness.

b.Connect the RED wire to the 24 vac GND terminal (TR) on enthalpy sensor and to pin 4 on 12-pin harness.

c.Connect the GRAY/ORN wire to J4-2 on PremierLink controller and to terminal (3) on enthalpy sensor.

d.Connect the GRAY/RED wire to J4-1 on PremierLink controller and to terminal (2) on enthalpy sensor.

BRACKET

HH57AC078 ENTHALPY SENSOR (USED WITH ENTHALPY CONTROL FOR DIFFERENTIAL ENTHALPY OPERATION)

HH57AC077

ENTHALPY CONTROL AND OUTDOOR AIR ENTHALPY SENSOR

C7400A1004 +

48HE,HJ

NOTE: If installing in a Carrier rooftop, use the two gray wires provided from the control section to the economizer to connect PremierLink controller to terminals 2 and 3 on enthalpy sensor.

Return Air Enthalphy Sensor

Mount the return-air enthalpy sensor (HH57AC078) in the return-air duct. The return air sensor is wired to the enthalpy controller (HH57AC077). The outdoor enthalpy changeover set point is set at the controller.

ENTHALPY CONTROLLER

 

 

 

 

 

 

 

 

RED

 

 

 

 

 

S (OUTDOOR

 

 

 

 

 

 

 

 

 

+

AIR

 

 

 

 

BRN

 

 

 

 

 

A B C

TR

TR1

 

 

BLK

 

 

ENTHALPY

 

 

 

 

 

 

SENSOR)

 

 

 

 

 

 

 

 

 

D

SO

+

 

 

 

RED

 

 

 

 

 

 

 

 

 

 

 

 

 

SR

+

 

 

 

 

 

 

 

S (RETURN AIR

 

 

 

 

 

 

 

 

 

 

+

ENTHALPY

 

2

3

 

 

 

 

 

 

 

 

SENSOR)

 

1

 

 

GRAY/ORN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LED

 

 

 

 

 

 

 

 

WIRE HARNESS

 

 

 

 

GRAY/RED

IN UNIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOTES:

1.Remove factory-installed jumper across SR and + before connecting wires from return air sensor.

2.Switches shown in high outdoor air enthalpy state. Terminals 2 and 3 close on low outdoor air enthalpy relative to indoor air enthalpy.

3.Remove sensor mounted on back of control and locate in outside air- stream.

C06019

Fig. 27 ---Outdoor and Return Air Sensor Wiring Connections for Differential Enthalpy Control

To wire the return air enthalpy sensor, perform the following (See Fig. 27):

1.Use a 2-conductor, 18 or 20 AWG, twisted pair cable to connect the return air enthalpy sensor to the enthalpy controller.

2.At the enthalpy control remove the factory-installed resistor from the (SR) and (+) terminals.

3.Connect the field-supplied RED wire to (+) spade connector on the return air enthalpy sensor and the (SR+)

terminal on the enthalpy controller. Connect the BLK wire to (S) spade connector on the return air enthalpy sensor and the (SR) terminal on the enthalpy controller.

MOUNTING PLATE

C06020

Fig. 28 ---Differential Enthalpy Control,

Sensor and Mounting Plate (33AMKITENT006)

 

ECONOMI$ER IV

 

CONTROLLER

WIRING

OUTSIDE AIR

TEMPERATURE SENSOR

HARNESS

LOW AMBIENT

 

ACTUATOR

SENSOR

 

C06021

Fig. 29 ---EconoMi$er IV Component Locations

OUTDOOR

AIR HOOD

ECONOMI$ER2

HOOD

PLUG

SHIPPING

 

BRACKET

GEAR DRIVEN

BAROMETRICDAMPER RELIEF

DAMPER

C06022

Fig. 30 ---EconoMi$er2 Component Locations optional economi$er IV and economi$er2

See Fig. 29 for EconoMi$er IV component locations. See Fig. 30 for EconoMi$er2 component locations.

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Contents Installation Instructions Electrical Shock HazardRoof Curb FIRE, Explosion HazardAlternate Unit Support 48HE,HJ Property Damage Hazard Install Flue HoodPositioning 48HE Unit Operating Dimensions Weight48HJ 48HJ004-007 Base Unit Dimensions 48HE003-006 Base Unit Dimensions Field control wiring Field power supplyHeat anticipator settings Physical Data 48HJ Nominal CapacityHJE HJD Physical Data 48HE HEE HED Power Wiring Connections Electrical Data 48HE 48HE003---006Electrical Data 48HJ 38.2 242 208/230---3---60 187 254 12.4 Manual outdoor damper AssemblyHUMIDI-MIZERADAPTIVE Dehumidification System Convenience outletTypical Humidi-MiZer t Adaptive Dehumidification System Install the Indoor Air Quality CO2 Sensor Install the Supply Air Temperature SAT SensorOutdoor Air Temperature Sensor OAT Enthalpy Sensors and ControlPremierLinkSensor Usage PremierLink ControllerPremierLinktController Installed Return Air Enthalphy Sensor EconoMi$er IV Component LocationsOutdoor Air Temperature OAT Sensor ECONOMI$ER IV Standard SensorsECONOMI$ER IV Control Modes EconoMi$er IV Wiring RUNDifferential Enthalphy Control Exhaust Set Point AdjustmentIndoor Air Quality IAQ Sensor Input Thermostats Minimum Position ControlDamper Movement Enthalpy Changeover Set Points Demand Controlled Ventilation DCVDehumidification of Fresh Air with DCV Control Adjust Evaporator-Fan SpeedBelt drive motors CO2Sensor Standard Settings Belt Drive Motor MountingEvaporator-Fan Motor Data Standard Motor 48HJ Fan Rpm at Motor Pulley Setting With High-Static MotorAccessory static pressure Evaporator-Fan Motor Data High-Static MotorsUnit ARI Octave Bands Rating 48HJ Outdoor Sound Power Total Unit48HE Outdoor Sound Power Total Unit Airflow1200 Rpm Bhp1100 1300Rpm Bhp Watts 1600 Rpm Bhp WattsWatts Rpm Bhp 1200 1700Rpm Bhp Watts 1500 1642 2333 17042700 Watts Rpm Bhp 18002600 28002700 2800 2900 3000 Bhp Watts RpmBhp 600 Watts Rpm Bhp Watts 900Watts Rpm Bhp 900 1700 1800 1900 2000 Bhp Watts1900 2000 2100 2200 2300 2400 2500 800 350 904 438 999 535 1087 640 1169 753 913 569 1250 1500 1750 2000 2250 2500 2750 3000 Unit Preparation Internal WiringRefrigerant Service Ports Gas PipingMain Burners CoolingHeating Operating Sequence Cooling units without economizer Safety ReliefVentilation Continuous Fan Heating units without economizerDX Cooling Temperature Control Example Routine 3 OATUnits with HUMIDI-MIZERADAPTIVE Dehumidification System Subcooling ModeNormal Design Operation Condenser coil CleaningEvaporator Coil One-Row CoilsFilters Condenser-Fan AdjustmentHigh Pressure Switch Lubrication CompressorHUMIDI-MIZERSYSTEM Charging Cooling Charging Chart Standard 48HJ006 To USE Cooling Charging CHART, Standard Unit Flue Gas Passageways Combustion-Air BlowerRemoval and Replacement of GAS Train See Limit SwitchLED Error Code Description Burner IgnitionReplacement Parts LOW HeatOFM Dcv demand controlled ventilation and power exhaust Unit TroubleshootingEconomi$er IV Troubleshooting Economi$er IV troubleshooting completionComponent Damage Hazard LED Error Code Service AnalysisSymptom Cause Remedy LED OFFHeating Service Analysis Problem Cause RemedyCooling Service Analysis EconoMi$er IV Input/Output Logic Inputs OutputsSTART-UP Checklist

48HJ004---007, 48HE003---006 specifications

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