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Carrier| Commercial Systems North America
EVERGREEN® 30HXA,HXC076-271

EVERGREEN® 30HXA,HXC076-271

Product catalog summary

Overview: The document details the technical specifications and features of Carrier Corporation's 30HX series water-cooled and condenserless chillers. These chillers are designed for modern efficiency and installation requirements, featuring a compact design, advanced controls, and environmentally friendly refrigerants.

Key Specifications:

Utilizes chlorine-free HFC-134a refrigerant.
Features dual independent refrigerant circuits and twin screw compressors.
AHRI certified IPLV efficiencies up to 0.51 kW/ton.
Available in sizes from 75 to 265 nominal tons (264 to 931 kW).

Features and Benefits:

Design and Installation: Compact design fits through standard doors without disassembly, requiring minimal indoor space. Comes as a complete package for easy installation.
Operation and Efficiency: Quiet, low-vibration operation with screw compressors. Meets or exceeds ASHRAE and CSA energy efficiency standards.
Service and Maintenance: HFC-134a refrigerant ensures no planned phase-out. Mechanically cleanable coolers and condensers, with no routine service required for twin-screw compressors.

Controls: ComfortLink™ controls provide an easy interface with advanced microprocessor controls, allowing for stand-alone or networked operation. Features include occupancy scheduling and temperature and pressure read-outs.

Performance Data: Includes detailed AHRI capacity ratings for both water-cooled and condenserless models, specifying input power, flow rates, pressure drops, and efficiency metrics.

Physical Data: Provides detailed physical specifications, including unit weights, compressor details, refrigerant charges, and pressure ratings.

Specifications:

Oil Separator: Part numbers and maximum refrigerant pressures specified.
Condenser: Shell and tube design with enhanced copper tubes.
Compressors: Semi-hermetic, twin screw compressors with economizer options.
Refrigerant: R-134a with specific charge requirements.

Procedures and Standards:

Standard number of passes and relief settings consistent across models.
Factory-installed options include Wye-delta start and brine options.
Field-installed accessories cover control power transformers and sound reduction enclosures.

Recommendations:

Special installation requirements for brine units.
Energy management modules recommended for temperature reset and demand limiting.

Key Data from Tables:

Flow capacities and relief settings consistent across unit sizes.
Operating weights and distribution at mounting plates detailed for each unit size.

Options and Accessories:

Factory-installed options include energy management modules and BACnet communication capabilities.
Field-installed accessories offer additional customization and performance enhancements.

Specifications:
1. Operating weight includes water and refrigerant.
2. Dimensions provided in inches (mm).
3. Recommended service clearance is 36 inches (914.4 mm).
4. Victaulic nozzles standard on all models.

Procedures:
1. Store machine and starter indoors, protected from dirt and moisture.
2. Ensure unit is level for proper oil return.
3. Locate unit indoors with a temperature range of 50 to 104 F (10 to 40 C).

Cooler Fluid Temperature:
1. Maximum leaving water temperature is 60 F (21 C).
2. Minimum leaving water temperature is 40 F (4.4 C).

Condenser Fluid Temperature:
1. Maximum leaving condenser fluid temperature is 110 F (43 C).

Recommendations:
1. Use a reset sensor for leaving-fluid temperature to reduce compressor power usage.
2. Consider humidity control when using temperature reset.

Weight Distribution:
Weight distribution at each mounting plate provided for various unit models.

Recommendations:

Multiple smaller chillers can be used in series to manage temperature rise.
Chilled fluid recirculation can increase flow rate.
Special cooler configurations can manage flow and pressure drop.

Application Data:

Minimum water-cooled condenser flow rates specified.
Chillers should not be oversized by more than 15%.

Energy Management:

Demand limiting and load shedding techniques recommended.

Installation Considerations:

Wye-delta start standard on certain units.
Vibration isolators and strainers recommended for installation.

Remote Condenser Requirements:

Specific guidelines for refrigerant circuit management and pressure control.

Refrigerant Piping Specifications:
Refrigerant piping exposed to outdoor conditions should be protected from snow and ice. For applications with a leaving water temperature of 40°F (4.4°C) or higher, refer to the Refrigerant Line Sizes for 30HXA Chiller/Remote Condenser Combinations tables.

Liquid Line Guidelines:

Maximum vertical separation between chiller and condenser is 15 ft (4.6 m).
Minimize line length and restrictions to reduce pressure drop.

Relief Valve Vent Lines:

Vent according to local code requirements.

Refrigerant Line Sizes:
Tables provide recommended pipe sizes based on unit size and total length of interconnecting piping.

System Refrigerant Charge:
The 30HXA units are shipped with a small holding charge of nitrogen.

Performance Data:
Graphs illustrate the pressure drop across standard pass coolers and condensers at various flow rates.

Installation Notes:

Piping shown is for general connection points.
All wiring and piping must comply with applicable codes.

Compressor Electrical Data Overview:
Provides detailed electrical data for 30HXA units, focusing on various compressor models.

Control System Features:
The 30HX units feature a microprocessor-based control system.

Sequence of Operation:
The chiller operation begins with the energization of the circulating pump.

Guide Specifications:
Outlines specifications for water-cooled and condenserless chillers.

Product Details:
The chillers are factory-assembled with dual refrigerant circuits.

Additional Information:
Training programs are available through Carrier representatives.

Control Features:

The chiller control system supports dual chiller control for series applications.

Safety Features:

Equipped with thermistors and components for protection against issues.

Diagnostics:

The display module shows safety lockout conditions.

Operating Characteristics:

The unit can start with a 95°F (35°C) entering fluid temperature.

Electrical Requirements:

Primary power enters at a single location.

Special Features:

Options include Wye-Delta Starter and sound reduction enclosure.

Catalog excerpts

Product Data EVERGREEN® 30HXA,HXC076-271 Condenserless and Water-Cooled Liquid Chillers with COMFORTLINK™ Controls 50/60 Hz 75 to 265 Nominal Tons (264 to 931 kW) Water-cooled and condenserless chillers designed from the ground up to meet the needs of today and tomorrow: • Unit fits through a standard door with no disassembly required • Chlorine-free HFC-134a refrigerant • Dual independent refrigerant circuits • Smooth compression using twin screw compressors • AHRI certified IPLV efficiencies to 0.51 kW/ton Alarm Status Service Test Temperatures Pressures Setpoints Inputs Outputs Configuration Time Clock Operating Modes Alarms Quality design and construction make the 30HXC (water-cooled) and 30HXA (condenserless) units the preferred chillers. Easy installation The 30HX chiller has a compact design that fits through a standard door opening and requires minimal indoor space. The 30HX chiller is delivered as a complete package for easy installation. There are no extra controls, clocks, starters, or other items to install. The 30HX unit also provides a single location electrical power entrance (using the accessory field-installed control power transformer) and quick, easy piping (using victaulic-type clampon couplings). The 30HX 208/230-v, 230-v, 460-v and 575-v 60 Hz units are designed in accordance with UL (Underwriters Laboratory, U.S.A.) and UL, Canada (Underwriters Laboratory, Canada) standards to minimize electrical inspection time. Copyright 2010 Carrier Corporation

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Features/Benefits (cont) A quick start-up is assured once installation is complete, since each 30HX unit is manufactured at an ISO (International Organization for Standardization) 9001:2000 listed manufacturing facility to guarantee quality. In addition, all 30HXC units are tested under load at the factory to provide reliable start-up. NOTE: The 30HXC units shipped with optional nitrogen charge are tested for proper operation of the electrical components but are not run-tested at the factory. Easy operation The 30HX units have a quiet, lowvibration design featuring screw compressors. Efficiency...

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Table of contents Features/Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1,2 Model Number Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 AHRI Capacity Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4,5 Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-9 Options and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10,11 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . ....

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LEGEND IPLV — Integrated Part-Load Value *Air Conditioning, Heating, and Refrigeration Institute (U.S.A.). †IPLV shown is the lower of Sequence A or Sequence B unloading. NOTES: 1. Rated (60 Hz only) in accordance with AHRI Standard 550/590 at standard rating conditions. 2. Standard rating conditions are as follows: Cooler Conditions: Leaving Water Temperature: 44 F (6.7 C) Flow: 2.4 gpm per ton (0.043 L/s per kW) Condenser Conditions: Entering Water temperature: 85 F (29.4 C) Flow: 3.0 gpm per ton (0.054 L/s per kW) Fouling Factor (Cooler): 0.00010 hr x sq ft x F per Btuh (0.000018 m2 x K per...

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30HXA CONDENSERLESS CHILLER RATINGS (60 Hz ONLY) NOTE: Rated in accordance with AHRI standard 460 at standard rating • 95 F (35 C) Entering Dry Bulb Temperature

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Physical data ENGLISH UNIT SIZE 30HX UNIT OPERATING WEIGHT (lb) Water-Cooled (HXC) Condenserless (HXA) COMPRESSORS Quantity Nominal Capacity per Compressor (tons) Economizer No. Capacity Steps 30HXC Unit 30HXA Unit (maximum on 30HXC unit with factory-installed option) Minimum Step Capacity (%) 30HXC Unit 30HXA Unit (30HXC unit with factoryinstalled option) REFRIGERANT Charge* (lb) Circuit A/Circuit B COOLER Part No. 10HX400Net Fluid Volume (gal) Maximum Refrigerant Pressure (psig) Maximum Water-Side Pressure (psig) Water Connections Inlet and Outlet (in.) (Standard Pass) Drain (in. NPT) (Standard...

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ENGLISH (cont) UNIT SIZE 30HX UNIT OPERATING WEIGHT (lb) Water-Cooled (HXC) Condenserless (HXA) COMPRESSORS Quantity Nominal Capacity per Compressor (tons) Economizer No. Capacity Steps 30HXC Unit 30HXA Unit (maximum on 30HXC unit with factory-installed option) Minimum Step Capacity (%) 30HXC Unit 30HXA Unit (30HXC unit with factoryinstalled option) REFRIGERANT Charge* (lb) Circuit A/Circuit B COOLER TYPE Part No. 10HX400Net Fluid Volume (gal) Maximum Refrigerant Pressure (psig) Maximum Water-Side Pressure (psig) Water Connections Inlet and Outlet (in.) (Standard Pass) Drain (in. NPT) (Standard...

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Physical data (cont) SI UNIT SIZE 30HX UNIT OPERATING WEIGHT (kg) Water-Cooled (HXC) Condenserless (HXA) COMPRESSORS Quantity Nominal Capacity per Compressor (kW) Economizer No. Capacity Steps 30HXC Unit 30HXA Unit (maximum on 30HXC unit with factory-installed option) Minimum Step Capacity (%) 30HXC Unit 30HXA Unit (30HXC unit with factoryinstalled option) REFRIGERANT Charge* (kg) Circuit A/Circuit B COOLER Part No. 10HX400Net Fluid Volume (L) Maximum Refrigerant Pressure (kPa) Maximum Water-Side Pressure (kPa) Water Connections Inlet and Outlet (in.) (Standard Pass) Drain (in. NPT) (Standard...

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SI (cont) UNIT SIZE 30HX UNIT OPERATING WEIGHT (kg) Water-Cooled (HXC) Condenserless (HXA) COMPRESSORS Quantity Nominal Capacity per Compressor (kW) Economizer No. Capacity Steps 30HXC Unit 30HXA Unit (maximum on 30HXC unit with factory-installed option) Minimum Step Capacity (%) 30HXC Unit 30HXA Unit (30HXC unit with factoryinstalled option) REFRIGERANT Charge* (kg) Circuit A/Circuit B COOLER Part No. 10HX400Net Fluid Volume (L) Maximum Refrigerant Pressure (kPa) Maximum Water-Side Pressure (kPa) Water Connections Inlet and Outlet (in.) (Standard Pass) Drain (in. NPT) (Standard Pass) Relief...

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Options and accessories ITEM Wye-Delta Start Brine Minus-One-Pass Cooler Head Plus-One-Pass Cooler Head Control Power Transformer Minimum Load Control Sound Reduction Enclosure Vibration Isolation Temperature Reset Sensor Chillervisor System Manager III Cooler Head Insulation Suction Service Valves Energy Management Module Nitrogen Holding Charge (30HXC) BACnet Communications Factory-installed options Wye-delta start — Generally, Wye-delta start is not required when using multiple compressors since the starting current is generally less than with one larger compressor using Wye-delta start. Wye-delta...

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EVERGREEN® 30HXA,HXC076-271

EVERGREEN® 30HXA,HXC076-271

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