Carrier 30HXC User Manual

23

   MHA    
 39 62 84 485 153 NA NA
 46 73 102 580 183 NA NA
 56 89 125 685 216 245 345
 66 107 153 820 259 290 410
 80 127 178 920 291 320 460
 80+ 148 214 1175 371 405 535

06NA - Compressor for air-cooled units
N - Non-economized compressor
E - Economized compressor
Inom. -AveragecurrentdrawofthecompressoratARIconditions
MHA - Must hold amperes (maximum operating current) at 342 V (A)
LRA -Lockedrotorcurrentwithacross-the-linestart
LRA(Y) -Lockedrotorcurrentatreducedcurrent(star/deltastart-upmode)
LRA(S)1cp. -Start-upwithreducedcurrentwithelectronicstarter(start-upduration3secondsmax.)foronecompressorpercircuit
LRA(S)2cp. -Start-upwithreducedcurrentwithelectronicstarter(start-upduration3secondsmax.)fortwocompressorspercircuit

The 30HXC units with the very low temperature option are
directly derived from the 30HXC models equipped with the high
condensing temperature option (option 150). Unit sizes available
with the very low temperature option are the following: 30HXC
090, 110, 130, 155, 175, 200, 230, 260, 310, 345.
Their application range allows the production of glycol/water
solution down to -10°C with ethylene glycol at 35% (by weight)
or down to -7°C with propylene glycol at 30% (by weight). The
precision of these amounts is critical for correct unit operation.
In addition to the ones already listed for the high condensing
temperature option (see chapter 4.4) the main modications are:
• the evaporator is equipped with reinforced thermal 38 mm
insulation,
• the electronic expansion valves are changed,
• the use of a wide-band oil differential sensor.
All technical data is the same as for the 30HXC units with option
150 except for the following chapters:

The options available for the 30HXC units equipped with the very
low temperature option are as follows: 20, 22, 60, 61, 84, 84D,
84R, 92, 104A, 107, 107A, 152, 193, 194, 197, 199.
        

   
Evaporator entering water temperature -7.2 21
Evaporator leaving water temperature -10 15

Evaporator entering water temperature -4.2 21
Evaporator leaving water temperature -7 15

Condenser entering water temperature 20 50
Condenser leaving water temperature 25 55
Outdoor air temperature 6 40
For very low temperature applications the anti-freeze solution is
critical for correct unit operation. The following amounts (by
weight) are required:
  
-6 25 27
-7 28 30
 30 NA
 33 NA
-10 35 NA

Carrier 30HXC Specifications

General

Brand	Carrier
Model	30HXC
Category	Chiller
Language	English

Summary

Introduction to 30HXC Chillers

Installation Safety Precautions

Ensures safe installation procedures by detailing necessary precautions and personnel qualifications.

Maintenance Safety Guidelines

Outlines essential safety measures and qualifications for maintenance personnel and operations.

Refrigerant Information

Provides details on the fluorinated greenhouse gas used and its Global Warming Potential.

Repair Safety Procedures

Emphasizes personal protective equipment and safe practices during repair operations.

Preliminary Unit Checks

Equipment Receipt Inspection

Details inspection steps for received equipment, including damage, completeness, and nameplate verification.

Unit Moving and Siting

Provides guidelines for safely moving and positioning the unit, including clearance requirements.

Pre-Start-Up System Checks

Lists essential checks before system start-up, covering installation verification and safety compliance.

Physical and Electrical Data (50Hz)

30HXC Electrical Data

Presents electrical data including power supply, current, and starting current for standard 30HXC units.

30HXC High Condensing Temp Electricals (150/150A)

Lists electrical data for 30HXC units configured for high condensing temperatures.

Physical and Electrical Data (60Hz)

30HXC Electrical Data (Option 60)

Presents electrical data for 30HXC units with option 60, including power supply and current ratings.

30HXC Electrical Data (Option 60, High Condensing)

Details electrical data for 30HXC units with option 60 and high condensing temperatures.

30HXC Electrical Data (Option 61)

Presents electrical data for 30HXC units with option 61, including power supply and current ratings.

30HXC Electrical Data (Option 61, High Condensing)

Details electrical data for 30HXC units with option 61 and high condensing temperatures.

Very Low Temperature Option (Option 6)

Very Low Temp Operating Range

Specifies the operating ranges for 30HXC units with very low temperature option using ethylene and propylene glycol.

Application Data for 30HXC

30HXC Unit Operating Range

Defines the operating ranges for evaporator and condenser temperatures for 30HXC units.

Minimum Chilled Water Flow

Specifies the minimum chilled water flow rate required for proper operation, including recirculation.

Electrical Connections

30HXC Unit Electrical Connections

Details electrical connection points and diagrams for 30HXC unit control boxes.

Power Supply Requirements

Specifies power supply requirements, voltage ranges, and warnings about improper supply.

Voltage Phase Imbalance Check

Explains how to calculate and check voltage phase imbalance and permissible limits.

Recommended Wire Sections

Provides guidelines for selecting minimum and maximum wire sections based on current and length.

Field Control Wiring Safety

Highlights safety precautions and lists features for field control wiring connections.

Wire Sections (400V-3ph-50Hz)

Wire Sections (400V-3ph-50Hz, Option 150)

Wire Sections (460V-3ph-60Hz, Option 60)

Wire Sections (460V-3ph-60Hz, Options 150/150A)

Wire Sections (380V-3ph-60Hz, Option 61)

Wire Sections (380V-3ph-60Hz, Options 150/150A)

Water Connections

Water Connection Precautions

Heat Exchange Fluid Recommendations

Flow Control Systems

Evaporator Flow Switch & Pump Interlock

Frost Protection Measures

System Components and Operation Data

Geared Twin Screw Compressors

Electronic Expansion Device (EXV)

Maintenance Procedures

General Maintenance Instructions

Provides guidelines for routine checks and preventive maintenance to ensure optimal performance and longevity.

Low Refrigerant Charge Indication

Guides on identifying low refrigerant charge through sightglass observation and EXV position.

Adding Refrigerant Charge Procedure

Provides a step-by-step procedure for adding refrigerant charge to the system.

Electrical Maintenance Checks

Integral Oil Filter Change

Filter Change-Out Procedure

Compressor Replacement Procedures

Compressor Rotation Control

Explains the importance of correct compressor rotation and the protection schemes to prevent damage.

EXV Troubleshooting Procedure

Guides on diagnosing and correcting problems with the EXV motor operation.

30HXC Start-Up Checklist

Preliminary Equipment Checks

Checklist for verifying unit installation, power supply, wiring, and connections.

Air Handling Systems Checks

Condenser System Checks

Cooler Water Loop Checks

Cooler Pressure Drop Check

Condenser Pressure Drop Check

Perform TEST Function

Instructions for performing and verifying the TEST function for unit operation.

Record Stabilized Temperatures and Pressures