Carrier 48HE003---006, 48HJ004---007 installation instructions Ofm

Page 58

48HE,HJ

 

 

NOTES:

 

1.

If any of the original wire furnished must be replaced, it must

 

be replaced with type 90 C wire or its equivalent.

 

2.

Three phase motors are protected under primary

single

phasing conditions.

3. Use copper conductors only.

4. TRAN is wired for 230 v unit. If unit is to be run with 208 v power supply, disconnect BLK wire from 230 v tap (ORN) and connect to 208 v tap (RED). Insulate end of 230 v tap.

LEGEND

C

— Contactor, Compressor

OFM

— Outdoor (Condenser) Fan Motor

CAP

— Capacitor

OLR

— Overload Relay

CLO

— Compressor Lockout

P

— Plug

COMP

— Compressor Motor

PL

— Plug Assembly

EQUIP

— Equipment

QT

— Quadruple Terminal

FPT

— Freeze Up Protection Thermostat

RS

— Rollout Switch

FU

— Fuse

SAT

— Supply Air Temperature Sensor

GND

— Ground

TRAN

— Transformer

HPS

— High-Pressure Switch

 

Field Splice

HS

— Hall-Effect Sensor

 

I

—

Ignitor

 

Marked Wire

IDM

— Induced-Draft Motor

 

IFC

—

Indoor Fan Contactor

 

Terminal (Marked)

IFM

—

Indoor Fan Motor

 

IGC

— Integrated Gas Unit Controller

 

Terminal (Unmarked)

LPS

— Low-Pressure Switch

 

LS

— Limit Switch

 

Terminal Block

MGV

— Main Gas Valve

 

 

 

Splice

Splice (Marked)

Factory Wiring Field Control Wiring Field Power Wiring

Accessory or Optional Wiring

To indicate common potential only; not to represent wiring.

C06147

Fig. 75 ---Typical Wiring Schematic and Component Arrangement (208/230-3-60 Shown)

58

Page 57 Page 59
Image 58
Page 57 Page 59
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

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.
Top Page Image Contents