Carrier 30HXC140 User Manual

30HXC 080-375
30GX 082-358
Screw Compressor
Water-Cooled Liquid Chillers and
Air-Cooled Liquid Chillers
30HXC Nominal cooling capacity 290-1325 kW
30GX Nominal cooling capacity 285-1205 kW
50 Hz
Installation, operation and maintenance instructions
GLOBAL CHILLER

Carrier 30HXC140 Specifications

General

Brand	Carrier
Model	30HXC140
Category	Chiller
Language	English

Summary

Safety Considerations

Installation

10.2 - Moving and siting the unit

Guidance on safely moving and positioning the chiller.

Lifting Instructions

Lifting Instructions (CONT.)

Piping Connections

11.8.3 - Freeze protection

Recommendations for protecting against freezing.

Electrical Characteristics

Major System Components and Operation Data

14.1 - Geared twin screw compressor

Details on 06N compressors used in 30HXC/30GX units.

Major System Components and Operation Data (CONT.)

14.5 - Electronic Expansion Device (EXD)

Explanation of the EXD's function and control mechanism.

14.6 - Economizer

Function of the economizer in improving capacity and efficiency.

Maintenance

15.1 - Refrigerant Charging - Adding Charge

Procedures and precautions for adding refrigerant charge.

15.2 - Indication of Low Charge on a 30HXC System

How to identify and address low refrigerant charge in 30HXC.

15.2.1 - To Add Charge to the 30HXC Systems

Step-by-step guide for adding refrigerant to 30HXC.

15.2.2 - Indication of Low Charge on 30GX Systems

How to identify low refrigerant charge in 30GX systems.

Maintenance (CONT.)

15.8.2 - EXD Troubleshooting Procedure

Steps for diagnosing and correcting EXD/Economizer problems.

15.4 - Oil Charging - Low Oil Recharging

Procedure for adding oil to the system.

15.8 - Compressor Replacement

Critical considerations for compressor replacement.

Start-Up Checklist for 30HXC/GX Liquid Chillers

Preliminary Equipment Check

Checklist for verifying unit installation and electrical connections.

Start-Up Checklist for 30HXC/GX Liquid Chillers (CONT.)

Check Pressure Drop Across the Condenser (30HXC Only)

Procedure to plot condenser pressure drop and find minimum flow rate.

Unit Start-Up

Steps for initial unit start-up and checks.

Perform TEST Function (Indicate Positive Result)

Instructions for performing and verifying the TEST function.

Check Cooler Water Loop

Checks for water loop volume, inhibitor, and freeze protection.

To Start the Chiller

Check Pressure Drop Across the Cooler

Procedure to plot cooler pressure drop and find minimum flow rate.