Carrier 48HJ004---007, 48HE003---006 EconoMi$er IV Input/Output Logic, Inputs Outputs

Page 63

Table 46—EconoMi$er IV Input/Output Logic

 

 

 

 

 

 

 

 

 

 

INPUTS

 

 

 

 

 

OUTPUTS

 

Demand Control

Enthalpy*

 

 

 

Compressor

N Terminal†

Outdoor

Return

Y1

Y2

Stage

Stage

Occupied

Unoccupied

Ventilation (DCV)

 

 

1

2

Damper

 

 

 

 

 

 

 

 

 

Below set

High

Low

On

On

On

On

Minimum position

Closed

(DCV LED Off)

(Free Cooling LED Off)

 

 

 

 

 

 

 

 

On

Off

On

Off

 

 

 

 

 

Off

Off

Off

Off

 

 

 

Low

High

On

On

On

Off

Modulating** (between min.

Modulating** (between

 

(Free Cooling LED On)

 

 

 

 

 

position and full-open)

closed and full-open)

 

 

On

Off

Off

Off

 

 

 

Off

Off

Off

Off

Minimum position

Closed

Above set

High

Low

On

On

On

On

Modulating†† (between min.

Modulating†† (between

(DCV LED On)

(Free Cooling LED Off)

 

 

 

 

 

position and DCV maximum)

closed and DCV

 

On

Off

On

Off

 

 

 

 

 

 

 

 

maximum)

 

 

 

Off

Off

Off

Off

 

 

Low

High

On

On

On

Off

Modulating***

Modulating†††

 

(Free Cooling LED On)

 

 

 

 

 

 

 

 

 

On

Off

Off

Off

 

 

 

 

 

Off

Off

Off

Off

 

 

*For single enthalpy control, the module compares outdoor enthalpy to the ABCD set point.

†Power at N terminal determines Occupied/Unoccupied setting: 24 vac (Occupied), no power (Unoccupied). **Modulation is based on the supply-air sensor signal.

††Modulation is based on the DCV signal.

***Modulation is based on the greater of DCV and supply-air sensor signals, between minimum position and either maximum position (DCV) or fully open (sup- ply-air signal).

†††Modulation is based on the greater of DCV and supply-air sensor signals, between closed and either maximum position (DCV) or fully open (supply-air sig- nal).

48HE,HJ

C06053

Fig. 76 ---EconoMi$er IV Functional View

63

Image 63
Contents Electrical Shock Hazard Installation InstructionsFIRE, Explosion Hazard Roof CurbAlternate Unit Support 48HE,HJ Install Flue Hood Property Damage HazardPositioning Unit Operating Dimensions Weight 48HE48HJ 48HJ004-007 Base Unit Dimensions 48HE003-006 Base Unit Dimensions Field power supply Field control wiringHeat anticipator settings Nominal Capacity Physical Data 48HJHJE HJD Physical Data 48HE HEE HED Power Wiring Connections 48HE003---006 Electrical Data 48HEElectrical Data 48HJ 38.2 242 208/230---3---60 187 254 12.4 Convenience outlet AssemblyHUMIDI-MIZERADAPTIVE Dehumidification System Manual outdoor damperTypical Humidi-MiZer t Adaptive Dehumidification System Enthalpy Sensors and Control Install the Supply Air Temperature SAT SensorOutdoor Air Temperature Sensor OAT Install the Indoor Air Quality CO2 SensorPremierLink Controller PremierLinkSensor UsagePremierLinktController Installed EconoMi$er IV Component Locations Return Air Enthalphy SensorECONOMI$ER IV Standard Sensors Outdoor Air Temperature OAT SensorECONOMI$ER IV Control Modes RUN EconoMi$er IV WiringExhaust Set Point Adjustment Differential Enthalphy ControlIndoor Air Quality IAQ Sensor Input Minimum Position Control ThermostatsDamper Movement Demand Controlled Ventilation DCV Enthalpy Changeover Set PointsAdjust Evaporator-Fan Speed Dehumidification of Fresh Air with DCV ControlBelt drive motors Belt Drive Motor Mounting CO2Sensor Standard SettingsEvaporator-Fan Motor Data High-Static Motors 48HJ Fan Rpm at Motor Pulley Setting With High-Static MotorAccessory static pressure Evaporator-Fan Motor Data Standard MotorAirflow 48HJ Outdoor Sound Power Total Unit48HE Outdoor Sound Power Total Unit Unit ARI Octave Bands Rating1300 Rpm Bhp1100 1200Rpm Bhp Watts 1700 Rpm Bhp WattsWatts Rpm Bhp 1200 16001642 2333 1704 Rpm Bhp Watts 15002800 Watts Rpm Bhp 18002600 2700Bhp Watts Rpm 2700 2800 2900 3000Bhp 600 Bhp Watts 900 Watts RpmWatts Rpm Bhp 900 Bhp Watts 1700 1800 1900 20001900 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 Gas Piping Internal WiringRefrigerant Service Ports Unit PreparationCooling Main BurnersHeating Heating units without economizer Safety ReliefVentilation Continuous Fan Operating Sequence Cooling units without economizerRoutine 3 OAT DX Cooling Temperature Control ExampleSubcooling Mode Units with HUMIDI-MIZERADAPTIVE Dehumidification SystemNormal Design Operation One-Row Coils CleaningEvaporator Coil Condenser coilLubrication Compressor Condenser-Fan AdjustmentHigh Pressure Switch FiltersHUMIDI-MIZERSYSTEM Charging Cooling Charging Chart Standard 48HJ006 To USE Cooling Charging CHART, Standard Unit Combustion-Air Blower Flue Gas PassagewaysBurner Ignition Limit SwitchLED Error Code Description Removal and Replacement of GAS Train SeeLOW Heat Replacement PartsOFM Economi$er IV troubleshooting completion Unit TroubleshootingEconomi$er IV Troubleshooting Dcv demand controlled ventilation and power exhaustLED OFF LED Error Code Service AnalysisSymptom Cause Remedy Component Damage HazardProblem Cause Remedy Heating Service AnalysisCooling Service Analysis Inputs Outputs EconoMi$er IV Input/Output LogicSTART-UP Checklist

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

Carrier has long been a trusted name in the HVAC industry, and its models 48HJ004---007 and 48HE003---006 continue that legacy, offering efficient, reliable climate control solutions. These models are designed for different applications, ensuring optimal performance in a variety of environments.

The 48HJ series features advanced rooftop units that are ideal for commercial settings. They come equipped with high-efficiency scroll compressors that provide superior cooling and heating capabilities. This series is noted for its compact design, allowing for easy installation on rooftops or other constrained spaces. The units offer variable capacity operation, which enables them to efficiently meet varying heating and cooling demands without unnecessary energy consumption.

One of the standout features of the 48HJ series is its use of advanced microprocessor controls. This technology allows for precise temperature management and system diagnostics, enhancing the ease of operation while ensuring maximum comfort. Additionally, the series supports advanced connectivity options, enabling integration with building management systems. This allows for remote monitoring and control, making it easier for facility managers to keep track of performance and energy usage.

On the other hand, the 48HE series specializes in high-efficiency heating and cooling performance. These units are designed for larger commercial spaces and come with robust features for enhanced durability and efficiency. Like the 48HJ series, the 48HE models utilize scroll compressors and are equipped with a high-efficiency fan setup for improved airflow and reduced noise levels.

The 48HE also includes an innovative heat pump option, which allows the system to reverse the cooling process to provide heating, making it versatile across different seasonal demands. Both series are designed with eco-friendly refrigerants that comply with the latest environmental regulations, ensuring a minimized ecological footprint.

In terms of energy efficiency, both the 48HJ and 48HE series hold impressive SEER and EER ratings, contributing to reduced operational costs over time. The units are also built with durable, corrosion-resistant materials, ensuring longevity and low maintenance needs.

In conclusion, Carrier 48HJ004---007 and 48HE003---006 models are designed with cutting-edge technology, energy efficiency, and flexibility in mind. Their robust features make them ideal choices for commercial applications, providing reliable comfort and operational excellence. Whether for cooling or heating, these systems stand out in performance and sustainability, earning Carrier's reputation as a leader in the HVAC market.