Carrier 30HXC175 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 30HXC175 Specifications

General

Brand	Carrier
Model	30HXC175
Category	Chiller
Language	English

Summary

2- SAFETY CONSIDERATIONS

3- DIMENSIONS, CLEARANCES, WEIGHT DISTRIBUTION

9- APPLICATION DATA

9.8 - Evaporator pressure drop curve

9.9 - Condenser pressure drop curve

9.10 - Flow controllers

9.10.1 - Cooler flow switch and chilled water pump interlock

Installation and importance of cooler flow switch and pump interlock.

10 - INSTALLATION

10.1 - Check equipment received

Procedures for inspecting received unit for damage and completeness.

10.2 - Moving and siting the unit

Guidelines for safely moving and positioning the chiller unit.

11 - LIFTING INSTRUCTIONS

11.1 - 30HXC 080-190

Lifting instructions and dimensions for 30HXC 080-190 models.

11.2 - 30HXC 200-285

Lifting instructions and dimensions for 30HXC 200-285 models.

11.3 - 30HXC 310-375

11.4 - 30GX 082-162

11.5 - 30GX 182

11.6 - 30GX 207-267

11.7 - 30GX 298-358

11.8 - Piping connections

11.8.3 - Freeze protection

12 - ELECTRICAL CHARACTERISTICS

13 - RECOMMENDED WIRE SECTIONS

13.1 - Field control wiring

14 - MAJOR SYSTEM COMPONENTS AND OPERATION DATA

14.1 - Geared twin screw compressor

Details on the 06N geared twin screw compressors used in the units.

14.5 - Electronic Expansion Device (EXD)

15 - MAINTENANCE

15.1 - Refrigerant charging - adding charge

Procedures and precautions for adding refrigerant to the unit.

15.2 - Indication of low charge on a 30HXC system

How to identify and confirm low refrigerant charge in 30HXC units.

15.2.1 - To add charge to the 30HXC systems

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

15.2.2 - Indication of low charge on 30GX systems

How to identify low refrigerant charge in 30GX systems.

15.4 - Oil charging - low oil recharging

15.7 - Filter change-out procedure

15.8 - Compressor replacement

Critical considerations for compressor replacement.

15.8.2 - EXD Troubleshooting Procedure

Steps to diagnose and correct EXD or economizer problems.

16 - START-UP CHECKLIST FOR 30HXC/GX LIQUID CHILLERS

Unit start-up

Checklist items for unit start-up procedures.

Check cooler water loop

Checklist items for checking the cooler water loop.

Check pressure drop across the cooler

Checklist items for checking cooler pressure drop.

Check pressure drop across the condenser (30HXC only)

Checklist items for checking condenser pressure drop.

Perform TEST function (indicate positive result)

Checklist for performing and verifying the TEST function.

To start the chiller

Final checks before starting the chiller.