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Carrier AquaForce 30XB series User Manual

Carrier AquaForce 30XB series
70 pages
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INSTALLATION, OPERATION AND
MAINTENANCE INSTRUCTIONS
Original document
Air-Cooled Screw Chillers
30XB - 30XBP
Unit with options 15 & 23A
Nominal cooling capacity: 270 - 1688 kW - 50Hz

Table of Contents

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Carrier AquaForce 30XB series Specifications

General IconGeneral
Compressor TypeScrew
RefrigerantR-134a
Operating Range-10°C to 18°C
Water Flow RateVariable depending on model
Power Supply460V/3Ph/60Hz

Summary

Introduction to Carrier Chillers

Installation Safety Considerations

Ensures safe installation practices, access control, and handling of the unit.

Equipment and Components Under Pressure

Details on pressurized components and compliance with regulations.

Maintenance Safety Considerations

Guidelines for safe maintenance operations and logbook requirements.

Repair Safety Considerations

Precautions for handling refrigerant leaks, explosion risks, and proper repair procedures.

Preliminary Checks and Unit Placement

Check Equipment Received

Verifying unit condition, nameplate data, and supplied accessories upon delivery.

Moving and Siting the Unit

Instructions for safely moving, lifting, and positioning the unit.

Checks Before System Start-up

Comprehensive pre-start checks of the installation and refrigeration system.

Dimensions and Clearances for 30XB Series

30XB-250 to 350 Dimensions

Provides dimensional drawings and clearances for specific 30XB/30XBP models.

30XB-1100 to 1400 Dimensions

Details dimensions and required clearances for larger 30XB/30XBP units.

Multiple Chiller Installation

Recommendations for installing multiple chillers in a row to avoid air recycling.

Distance to the Wall

Guidelines for maintaining optimal clearance between the unit and walls.

Physical and Electrical Data

Physical Data for 30XB Units

Detailed physical specifications, dimensions, and weights for 30XB models.

Physical Data for 30XBP Units

Physical specifications, dimensions, and weights for 30XBP models.

Electrical Data

Provides operating power, current draw, and voltage information for all units.

Compressor Electrical Data

Details electrical characteristics for various compressor models used in the units.

Electrical Connection Procedures

Power Supply Requirements

Conforming power supply specifications and voltage phase imbalance checks.

Recommended Wire Sections

Guidelines for selecting appropriate wire sizes based on current and voltage drop.

Field Control Wiring

Instructions for connecting interface circuits and preventing electrical risks.

Application Data and Performance

Operating Range

Defines the acceptable operating limits for water and air temperatures.

Chilled Water Flow Rates

Specifies minimum and maximum chilled water flow rates for units.

Evaporator Water Flow Rate

Details evaporator water flow rates and their relation to pressure drop.

Evaporator Pressure Drop Curve

Graphical representation of pressure drop versus water flow rate.

Water Connections and System Design

Operating Precautions for Water Circuits

Guidelines for water circuit design, filtering, treatment, and material compatibility.

Victaulic Water Connections

Specifies nominal and actual diameters for water connections.

Flow Control and Frost Protection

Ensuring proper flow control and preventing frost damage in water circuits.

Pump Characteristics

Provides available static pressure curves for hydraulic module pumps.

Free-Cooling Option (Option 118A)

Operating Limits for Free-Cooling

Defines the temperature limits for efficient operation in free-cooling mode.

Heat Reclaim Condenser Option (Option 50)

Physical Data with Heat Reclaim Option

Specifications and weights for units equipped with heat reclaim condensers.

Heat Reclaim Condenser Water Connections

Details on water connections and flow switches for heat reclaim condensers.

Heat Reclaim Operation Modes

Explains operating limits for stable and changeover modes in heat reclaim.

Heat Reclaim Condenser Frost Protection

Information on electric heaters for protecting the condenser from frost.

Fans with Available Pressure (Option 10)

Duct Connection Features

Describes fans equipped with flanges for duct connection.

Major System Components

Twin-Screw Compressor Details

Information on compressors, oil filters, lubricants, and capacity control.

Pressure Vessels and Safety

Guidelines for monitoring pressure vessels and safety switch functions.

Condensers and Fans

Details on micro-channel condensers, axial fans, and their specifications.

Electronic Expansion Valve (EXV)

Description of the EXV's function, control, and moisture indication.

Power Factor Correction Capacitors

Details on capacitors for power factor improvement and their selection.

Main Options Overview

Low Noise Level Options

Describes options for reducing noise levels, such as acoustic enclosures.

Winter Operation and Frost Protection

Options for operation in low temperatures and frost protection measures.

Free-Cooling and Hydraulic Modules

Details on free-cooling systems and hydraulic module options.

Standard Maintenance Procedures

Level 1 Maintenance Tasks

Basic visual checks and cleaning procedures for unit operation.

Level 2 Maintenance Tasks

Routine checks requiring specific electrical and hydraulic knowledge.

Level 3 (or Higher) Maintenance

Advanced maintenance requiring specialized skills and manufacturer authorization.

Tightening Torques for Connections

Specifications for tightening torques of electrical and mechanical connections.

Compressor and Condenser Maintenance

Procedures for oil separator checks, filter changes, and coil cleaning.

Start-Up Checklist

Preliminary Information and Checks

Gathering unit details and performing initial equipment checks before start-up.

Cooler Water Loop Verification

Checks related to water loop volume, inhibitor, and freeze protection.

Cooler Pressure Drop Verification

Ensuring correct water flow rates and checking pressure drop across the cooler.

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