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Carrier 30GTR User Manual

Carrier 30GTR
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Product
Data
30GTN,GTR,GBN,GBR
Air-Cooled Reciprocating
Liquid Chillers
with ComfortLink™ Controls
50 Hz
Nominal Capacities: 50 to 400 Tons
127 to 1445 kW
Features/Benefits
ComfortLink control
Your link to a world of simple and easy to use
air-cooled chillers that offer outstanding
performance and value. The 30GTN,GTR,
GBN,GBR liquid chillers employ more than the
latest advanced microprocessor controls, they
utilize an expandable platform that grows as
your needs change. From stand-alone operation
to remotely monitored and operated multi-
chiller plants, ComfortLink controls can keep
you plugged in.
ComfortLink controls are fully
communicating, and are cable ready for
connection to a Carrier Comfort Network
(CCN). Occupancy scheduling, temperature
and pressure read-outs, and the ComfortLink
scrolling marquee clear language display
compliment the standard features, linking you
to a world of carefree comfort. The
30GTN,GTR,GBN,GBR chillers are built on
the legendary performance of the Carrier model
30G Flotronic™ chiller and share many of the
same time-proven features and technologies
providing easy operation, quick installation and
start-ups that save you money!
Superior temperature control equals
potential for greater productivity
Whether in the classroom, on the production
floor, or in the office, ComfortLink controls can
help you to adapt to changing weather and
business conditions. Accurate temperature
control provided by the Carrier ComfortLink
system helps to maintain higher levels of indoor
air quality, thermal comfort, and productivity
space.
While many air-cooled chillers use only
leaving fluid temperature control, the
30GTN,GTR,GBN,GBR chillers utilize leaving
fluid temperature control with a standard
entering fluid temperature compensation.

Table of Contents

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Carrier 30GTR Specifications

General IconGeneral
BrandCarrier
Model30GTR
CategoryChiller
LanguageEnglish

Summary

Features and Benefits

ComfortLink Control

Microprocessor-based control system for chiller operation and monitoring.

Product Overview

Efficiency Advantage

Benefits of dual independent circuits and advanced controls for energy savings.

Design Flexibility

Modular design allows for various installation configurations and future expansion.

Quality and Reliability

Factory tested components and robust design ensure long-term performance.

Quality Assurance

ISO Certifications

Unit manufactured in ISO 9001 and 14001 certified facilities for quality assurance.

Model Number Nomenclature

Unit Identification

Explanation of the coding system for model numbers including size, type, and options.

Physical Data - English

Unit Specifications

Detailed specs including weight, refrigerant charge, compressor type, and coil details.

Base Unit Dimensions

Dimensional Drawings

Top, side, and end views showing overall unit dimensions and key features.

Unit Dimension Table

Table providing precise dimensions for different unit sizes.

Application Data

Cooler Fluid Temperature

Recommended operating ranges and limits for leaving chilled fluid temperature.

Cooler Flow Requirements

Minimum and maximum flow rates and loop volumes for optimal performance.

Operational Considerations

Cooler Protection

Measures to prevent freeze-up, including antifreeze solutions and system design.

Fluid Loop Volume

Importance of adequate fluid volume for temperature stability and accuracy.

Environmental Operating Conditions

Low Ambient Operation

Requirements for starting and operating the unit at low outdoor temperatures.

Antifreeze Solution

Use and correction factors for inhibited ethylene glycol in low-temperature applications.

Selection Procedure

Determine Unit Size

Steps to identify the correct unit based on capacity and operating conditions.

Calculate Water Flow & Pressure Drop

Procedures for calculating corrected water flow rate and cooler pressure drop.

Performance Data

Part Load Performance

Tables showing compressor displacement percentages at various load steps.

Electrical Data

Unit Electrical Specifications

Electrical data including voltage, current ratings (MCA, MOCP), and fuse sizes.

Compressor Electrical Data

RLA and LRA values for individual compressors across different unit sizes.

Fan and Control Electricals

Condenser Fan Data

Fan quantities and FLA values for each unit size.

Electrical Notes and Legend

Explanations of electrical terms and important notes for installation.

Controls System

Microprocessor Control

Overview of the central executive routine controlling unit operations and processes.

Electronic Expansion Valve (EXV)

Function of the EXV in controlling refrigerant flow and maintaining superheat.

Control Features and Safeties

Capacity Control Strategies

Methods used for managing chiller capacity, including staging and temperature reset.

Abnormal Conditions and Diagnostics

Safety functions, fault detection, and troubleshooting display capabilities.

Typical Piping and Wiring

Installation Connections

Diagrams illustrating typical piping and wiring connections for unit installation.

Guide Specifications

System Description and Quality

Overview of the chiller system and manufacturing quality assurance standards.

Component Specifications

Detailed specs for cabinet, fans, compressors, cooler, and condenser components.

Control and Safety Details

Control Functions and Safeties

Specific control capabilities, safety interlocks, and diagnostic functions of the microprocessor.

Unit Operating Characteristics

Information on unit start-up, load control, and operational features like lead/lag.

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