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Carrier 50ZH Series User Manual

Carrier 50ZH Series
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50ZH
3-PHASE SINGLE-PACKAGED HEAT PUMPS
2-1/2 to 5 Tons
Product Data
Single-Packaged Heat Pump Units with:
easy installation design
corrosion-proof unit base
redesigned aerodynamic fan blade for
reduced sound
sloped drain for improved indoor air
quality
• scroll compressors
through-the-top service access
louvered panel coil protection
Features/Benefits
Compact, horizontal supply and return
unit, combining easy installation and
maintenance with efficient performance.
EASY TO INSTALL —
The 50ZH
units are lightweight, compact single-
package units that are easy to handle.
Every 50ZH unit has an identical 32 by
51-in. footprint to make jobsite planning
simple. The precise design uses less
sheet metal and makes the 50ZH units
lighter than other units. The unit can be
easily positioned on the jobsite with the
hand-holds built into the unit basepan.
Drop-in cartridge style heaters are
utilized to minimize installation time.
REDESIGNED AERODYNAMIC
FAN BLADE DESIGN
reduces overall
sound by up to 3dB; now as low as 76dB.
TOP COVER SERVICE ACCESS —
The 50ZH units are designed to be
serviced from the top. The split-top
design allows easy access for installation
and maintenance procedures on the unit.
Routine maintenance tasks such as coil
cleaning are sped up with through-the-
top access. Multiple side panels do not
need to be removed as with other units.
CORROSION PROOF UNIT
BASE—
The 50ZH unit features a
tough, high-tech, single-piece,
composite material unit base with an
integrated drain. The composite material
eliminates the potential problem of rust
and premature replacement which are
common with standard metal pans. Each
50ZH unit base is sloped to eliminate
standing water. This feature minimizes
UNIT 50ZH

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Carrier 50ZH Series Specifications

General IconGeneral
Series50ZH
TypeHeat Pump
ManufacturerCarrier
RefrigerantR-410A
Voltage Options208/230V
Phases1

Summary

50ZH Heat Pump Product Features

Easy Installation and Design

Details on lightweight, compact design and jobsite planning for the 50ZH units.

Aerodynamic Fan for Reduced Sound

Highlights the redesigned fan blade for improved sound reduction.

Convenient Top Cover Service Access

Explains the split-top design for easy access during installation and maintenance.

Corrosion-Proof Composite Basepan

Features a composite material base for rust prevention and improved drainage.

Durable Steel Cabinet Construction

Describes the watertight and corrosion-resistant steel cabinet for longevity.

High-Reliability Scroll Compressors

Details the hermetically sealed scroll compressors with internal protection.

Optimized Coil Efficiency

Covers computer-designed coils for optimum heat transfer and cooling efficiency.

ChronoTemp™ Defrost System

Explains the time/temperature-based defrost cycles for maintaining unit efficiency.

Accessory Electric Heater Options

Describes available drop-in style cartridge electric heaters with single-point connections.

Starter Collars for Ductwork Connection

Mentions starter collars provided for easy connection to structure ductwork.

Dependable Component Features

Highlights direct-drive motors and robust refrigerant system components.

Model Number Nomenclature

Model Number Breakdown

Explains the coding system used for 50ZH unit model numbers.

ARI Cooling Capacities and Efficiencies

Cooling Capacity and Efficiency Ratings

Presents SEER, HSPF, COP, and sound ratings for various 50ZH unit sizes.

Physical Data and Specifications

Unit Weight and Refrigerant Charge

Details operating weight, compressor type, and refrigerant charge for each unit size.

Outdoor Coil and Fan Motor Data

Provides specifications for outdoor coil, fan motor, and related components.

Evaporator Coil and Fan Motor Data

Lists specifications for evaporator coil, fan motor, and related components.

Connecting Duct Sizes and Filter Requirements

Specifies connecting duct sizes and field-supplied return air filter dimensions.

Available Unit Accessories

Accessory Controls and Features

Describes accessories like Low Ambient Control, Controls Upgrade Kit, and Crankcase Heater.

Accessory Electric Heater Usage

Details the usage of accessory electric heaters with specific unit sizes.

Electric Heater Multiplication Factors

Voltage Distribution Multiplication Factors

Provides factors to adjust electric heater capacity based on voltage distribution.

50ZH030 Unit Dimensions and Clearances

50ZH030 Dimensional Drawings

Illustrates the unit's physical dimensions and layout.

50ZH030 Installation Clearances

Specifies required clearances for installation, operation, and servicing.

50ZH030 Unit Weight and Center of Gravity

Provides unit weight and center of gravity information for the 50ZH030 model.

50ZH036-048 Unit Dimensions and Clearances

50ZH036-048 Dimensional Drawings

Illustrates the physical dimensions and layout for 50ZH036 and 50ZH048 models.

50ZH036-048 Installation Clearances

Specifies required clearances for installation, operation, and servicing for these models.

50ZH036-048 Unit Weight and Center of Gravity

Provides unit weight and center of gravity for 50ZH036 and 50ZH048 models.

50ZH060 Unit Dimensions and Clearances

50ZH060 Dimensional Drawings

Illustrates the physical dimensions and layout for the 50ZH060 model.

50ZH060 Installation Clearances

Specifies required clearances for installation, operation, and servicing for this model.

50ZH060 Unit Weight and Center of Gravity

Provides unit weight and center of gravity information for the 50ZH060 model.

Unit Selection Procedure

Determine Cooling and Heating Requirements

Steps to determine cooling and heating needs based on design conditions.

Select Unit Based on Cooling Capacity

Guidance on selecting the appropriate unit based on cooling capacity requirements.

Select Electric Heat Requirements

Procedure for selecting the correct electric heat capacity and units.

Determine Fan Speed and Power Requirements

Calculates total static pressure and fan speed requirements for optimal performance.

50ZH030 Performance Data

50ZH030 Cooling Capacity Tables

Presents cooling capacity (TC) and sensible heat capacity (SHC) at various conditions.

50ZH030 Heating Capacity Tables

Provides heating capacity (Cap.) and power input (kW) at different temperature and airflow conditions.

50ZH036 Performance Data

50ZH036 Cooling Capacity Tables

Presents cooling capacity (TC) and sensible heat capacity (SHC) at various conditions.

50ZH036 Heating Capacity Tables

Provides heating capacity (Cap.) and power input (kW) at different temperature and airflow conditions.

50ZH042 Performance Data

50ZH042 Cooling Capacity Tables

Presents cooling capacity (TC) and sensible heat capacity (SHC) at various conditions.

50ZH042 Heating Capacity Tables

Provides heating capacity (Cap.) and power input (kW) at different temperature and airflow conditions.

50ZH048 Performance Data

50ZH048 Cooling Capacity Tables

Presents cooling capacity (TC) and sensible heat capacity (SHC) at various conditions.

50ZH048 Heating Capacity Tables

Provides heating capacity (Cap.) and power input (kW) at different temperature and airflow conditions.

50ZH060 Performance Data

50ZH060 Cooling Capacity Tables

Presents cooling capacity (TC) and sensible heat capacity (SHC) at various conditions.

50ZH060 Heating Capacity Tables

Provides heating capacity (Cap.) and power input (kW) at different temperature and airflow conditions.

Pressure Drop Data

Wet Coil Pressure Drop

Details pressure drop across the wet coil for different unit sizes and airflows.

Filter Pressure Drop

Provides pressure drop data for filters based on size and airflow.

Accessory Electric Heat Pressure Drop

Lists pressure drop for accessory electric heaters at various airflow rates.

Dry Coil Air Delivery Performance

Horizontal Discharge Air Delivery Data

Presents CFM and Watt data for various external static pressures and motor speeds.

Unit Electrical Data

Electrical Specifications by Unit Size

Details voltage range, compressor specs, FLA, MCA, and max fuse/breaker ratings.

Electric Heat Electrical Data

Provides FLA, MCA, and max fuse/breaker ratings for electric heat options.

208/230-3-60 Wiring Schematic

Component Arrangement and Wiring Diagram

Illustrates the physical layout and electrical connections for the unit.

Wiring Schematic Legend and Notes

Explains symbols and provides important notes for wiring installation.

460-3-60 Wiring Schematic

460-3-60 Unit Wiring Diagram

Details the electrical connections for 460-3-60 voltage units.

Electric Heater Wiring and Voltage Imbalance

Electric Heater Wiring Diagram

Shows the wiring connections for accessory electric heaters.

Supply Voltage Phase Imbalance Calculation

Explains how to calculate and assess voltage imbalance in 3-phase supply.

Unit Controls and Operation Sequence

Sequence of Operation for Cooling and Heating

Describes the unit's operational sequence during cooling, heating, and defrost modes.

Defrost Control Logic

Explains the time and temperature-based control for the defrost cycle.

Typical Installation and Application Data

Typical Installation Diagram

Illustrates a typical installation setup for the heat pump unit.

Condensate Trap Requirement

Specifies the need for a 2-inch condensate trap.

Cooling Airflow Limitations

Defines maximum and minimum cooling airflow requirements for the units.

Operating Temperature Limits

Outlines minimum ambient and maximum operating temperatures for cooling.

Guide Specifications: General Requirements

System Description and Standards

Details system overview, quality assurance, and compliance with industry standards.

Unit Handling and Storage Procedures

Provides guidelines for proper delivery, storage, and handling of the unit.

Guide Specifications: Equipment Details

Unit Cabinet and Construction

Describes the unit enclosure, basepan, insulation, and serviceability features.

Fan, Compressor, and Coil Specifications

Details specifications for fans, compressor type, and coil construction.

Refrigerant, Controls, and Motors

Covers refrigerant components, safeties, operating characteristics, and motor details.

Guide Specifications: Features and Options

Special Features: Electric Heaters and Thermostats

Details electric heater options, safety controls, and thermostat capabilities.

Available Options: Coils, Economizer, and Low Ambient

Lists optional coil types, economizer functions, and low ambient operation packages.

Additional Options: Crankcase Heater and Duct Transitions

Covers crankcase heater function, duct transitions, and other installation accessories.

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