York AHR42C3XH21 User Manual

SINGLE PIECE AIR HANDLERS
FOR USE WITH SPLIT-SYSTEM
COOLING & HEAT PUMPS
MODELS: AHR18 THRU 60*
Due to continuous product improvement,
specifications are subject to change without notice.
Visit us on the web at:
www.upgnet.com
Additional rating information can be found at:
www.ahridirectory.org
WARRANTY
Standard 5-year limited parts warranty.
Extended 10-year limited parts warranty when product is regis-
tered online within 90 days of purchase for replacement or
closing for new home construction.
ISO 9001
Certified Quality
Management System
TECHNICAL
GUIDE
TECHNICAL
GUIDE
1055361-BTG-D-0514
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE
DESCRIPTION
This fan coil line offers the ultimate in application flexibility. This unit
may be used for upflow, downflow, horizontal right, or horizontal left
applications.
All JCI Unitary Products air handlers and coils use a TXV to provide our
customers with the optimum performance and refrigerant control. Air
handlers are shipped with “Flex-coils” without a factory installed meter-
ing device. For added flexibility, an R-22 or R-410A TXV or orifice can
be field installed to meet your refrigerant choice.
FEATURES
Thermal Expansion Valve - Provides the ultimate refrigerant con-
trol required for today’s high efficient product. The UPG bolt-on TXV
provides the added flexibility to convert the air handler to the required
refrigerant. The UPG TXV is a true bolt-on which does not require braz-
ing to replace or install.
Insulated Cabinet - All air handler cabinets are thermally insulated
with 3/4” foil faced insulation to prevent sweating.
Factory Sealed - Achieves 2% or less total airflow leakage rate at
duct blaster field test conditions for system airflow verification.
Durable Finish Inside and Out - Air handler casings are made of
pre-painted galvanized steel which provides a better paint to steel bond
that resists corrosion and rust creep. All internal coil sheet metal parts
are made of G60 galvanized or prepainted G30 galvanized.
Filters - All models have internal filter racks provided for use with 1”
thick standard size filters.
Electric Heat Kits - 6HK series of field installed electric heat kits are
available for installation friendly and easy service applications.

York AHR42C3XH21 Specifications

General

Brand	York
Model	AHR42C3XH21
Category	Air Conditioner
Language	English

Summary

Product Description

Key Product Features

Thermal Expansion Valve (TXV)

TXV provides refrigerant control and flexibility for field installation.

Insulated Cabinet

Cabinet insulated with foil-faced insulation to prevent sweating.

Factory Sealed Cabinet

Achieves 2% or less total airflow leakage rate.

Durable Finish and Construction

Casings made of pre-painted galvanized steel for corrosion resistance.

Filter Provisions

Internal filter racks for 1" standard size filters.

Electric Heat Kit Availability

6HK series electric heat kits available for easy installation.

Dimensions and Duct Connections

Physical Dimensions

Table listing physical dimensions (A-F) for various models.

Wiring Knockouts

Details wiring knockout sizes (J, K) for different models.

Refrigerant Line Size

Specifies line sizes (Liquid, Vapor) for refrigerant connections.

Coil Technical Data

Coil Application

Specifies coil application as Cooling/Heat Pump.

Refrigerant Connection Type

Indicates sweat connection type for refrigerant lines.

Coil Face Area

Lists the face area in square feet for each coil.

Coil Rows Deep

Indicates the number of rows deep for the coil.

Coil Fin Density

Details the fin density in fins per inch.

Coil Dimensions

Provides coil dimensions in inches (e.g., 14 x 17.5).

Coil Geometry

Specifies coil geometry (e.g., 1 x 0.866).

Coil Tube Diameter

Lists the tube diameter in inches (e.g., 3/8).

Coil Fin Type

Indicates the fin type as 'Enhanced'.

Cooling Capacity Data

Air Handler Models

Identifies the specific air handler models (AHR18B, AHR22B, etc.).

Rated Airflow (CFM)

Specifies the rated airflow in CFM for each model.

Entering Air Conditions (°F)

Details the entering air dry and wet bulb temperatures in Fahrenheit.

MBH Capacity by Condition

Provides cooling capacity in MBH at various evaporator temperatures and pressures.

Cooling Capacity Data (Continued)

Air Handler Models

Identifies the specific air handler models (AHR60D).

Rated Airflow (CFM)

Specifies the rated airflow in CFM for each model.

Entering Air Conditions (°F)

Details the entering air dry and wet bulb temperatures in Fahrenheit.

MBH Capacity by Condition

Provides cooling capacity in MBH at various evaporator temperatures and pressures.

Application Factors: CFM Adjustment

Airflow Percentage

Shows percentages of rated airflow capacity.

Capacity Adjustment Factor

Provides capacity adjustment factors for airflow variations.

Physical & Electrical Data (Cooling Only)

Air Handler Models

Identifies the air handler models.

Blower Dimensions

Specifies blower dimensions in inches.

Motor Horsepower (HP)

Indicates the motor horsepower rating.

Motor Speed (RPM)

Provides the nominal motor RPM.

Operating Voltage

Specifies the standard operating voltage.

Full Load Amps (FLA)

Shows full load amps at 230V.

Filter Type

Indicates the type of filter (Disposable or Permanent).

Filter Size

Specifies the filter dimensions (e.g., 16 x 20 x 1).

Permanent Filter Kit Part Numbers

Provides part numbers for permanent filter kits.

Shipping and Operating Weight

Shows shipping and operating weights in pounds.

KW & MBH Conversion Factors

Power Distribution Types

Specifies different power distribution voltages.

Nominal Voltage

Indicates the nominal voltage for conversion.

Conversion Factor

Provides factors for converting kW and MBH data.

Electrical Data (Cooling Only)

Air Handler Models

Identifies the air handler models.

Motor FLA

Shows the Full Load Amps for each model.

Minimum Circuit Ampacity (MCA)

Specifies the minimum circuit ampacity required.

Maximum Overcurrent Protection (MOP)

Details the maximum overcurrent protection device rating.

Minimum Wire Size (AWG)

Indicates the minimum wire size in AWG.

Electric Heat: Minimum Fan Speed

Heater Kit Models

Identifies the available electric heater kit models.

Nominal kW @240V

Shows nominal kW output at 240V for heater kits.

Associated Air Handler Models

Lists the air handler models associated with the heater kits.

Fan Speed Settings

Indicates minimum fan speed settings (Low, Med, High) for each model.

Electric Heat Performance Data

Heater Kit Models

Identifies the electric heater kit models.

Nominal kW @240V

Shows nominal kW output at 240V.

Total Heat Output (kW/MBH)

Provides total heat output in kW and MBH.

kW Staging

Details kW staging configurations (W1 Only, W1 + W2).

Electrical Data: Single Source 208/230-1-60

Air Handler Models

Identifies the air handler models.

Heater Kit Models

Specifies the electric heater kit models.

Heater Amps @240V

Shows heater amperage at 240V.

Minimum Circuit Ampacity (MCA)

Details the minimum circuit ampacity.

Maximum Overcurrent Protection (MOP)

Specifies the maximum overcurrent protection device.

Minimum Wire Size (AWG)

Indicates the minimum wire size in AWG.

Electrical Data: Multi-Source 208/230-1-60

Air Handler Models

Identifies the air handler models.

Heater Kit Models

Specifies the electric heater kit models.

Total Heater Amps @240V

Shows total heater amperage at 240V.

Minimum Circuit Ampacity (MCA)

Details the minimum circuit ampacity.

Maximum Overcurrent Protection (MOP)

Specifies the maximum overcurrent protection device.

Minimum Wire Size (AWG)

Indicates the minimum wire size in AWG.

Electrical Data: Single Source 208/230-3-60

Air Handler Models

Identifies the air handler models.

Heater Kit Models

Specifies the electric heater kit models.

Minimum Circuit Ampacity (MCA)

Details the minimum circuit ampacity.

Maximum Overcurrent Protection (MOP)

Specifies the maximum overcurrent protection device.

Minimum Wire Size (AWG)

Indicates the minimum wire size in AWG.

Electrical Data: Multi-Source 208/230-3-60

Air Handler Models

Identifies the air handler models.

Heater Kit Models

Specifies the electric heater kit models.

Total Heater Amps @240V

Shows total heater amperage at 240V.

Minimum Circuit Ampacity (MCA)

Details the minimum circuit ampacity.

Maximum Overcurrent Protection (MOP)

Specifies the maximum overcurrent protection device.

Minimum Wire Size (AWG)

Indicates the minimum wire size in AWG.

Typical Application Configurations

Upflow Configuration

Illustrates the upflow air handler configuration.

Downflow Configuration

Illustrates the downflow air handler configuration.

Horizontal Right Configuration

Illustrates the horizontal right air handler configuration.

Horizontal Left Configuration

Illustrates the horizontal left air handler configuration.

Optional Accessories

TXV Kits

TXV kits for flex-coil applications and conversions are available.

Electric Heater Models

Electric heater models with safety features are included.

Important Limitations

Wiring and Installation Codes

Units must be wired per national and local safety codes.

Voltage Limits

Specifies voltage limits and normal operating ranges.

Airflow Requirements

Airflow must meet minimum/maximum limits for electric heat.

Typical Thermostat Connections

Cooling Only Wiring

Wiring diagram for cooling-only thermostat connections.

Cooling w/ Electric Heat (<=10kW) Wiring

Wiring diagram for cooling with electric heat (10kW and below).

Heat Pump w/ Electric Heat (<=10kW) Wiring

Wiring diagram for heat pump and electric heat (10kW and below).

Cooling w/ Electric Heat (>=13kW) Wiring

Wiring diagram for cooling with electric heat (13kW and above).

Heat Pump w/ Electric Heat (>=13kW) Wiring

Wiring diagram for heat pump and electric heat (13kW and above).

Air Flow Data (CFM)

Air Handler Models

Identifies the air handler models.

Blower Motor Speed

Specifies blower motor speeds (High, Medium, Low).

External Static Pressure (in. wc.)

Details external static pressure in inches of water column.

Airflow Data (208 Volt)

Airflow data for 208 Volt operation.

Airflow Data (230 Volt)

Airflow data for 230 Volt operation.

Air Flow Data (CFM) (Continued)

Air Handler Models

Identifies the air handler models.

Blower Motor Speed

Specifies blower motor speeds (High, Medium, Low).

External Static Pressure (in. wc.)

Details external static pressure in inches of water column.

Airflow Data (230 Volt)

Airflow data for 230 Volt operation.