Airwell Itelco-Clima CLS 202 LN User Manual (English)

Questions and Answers:

J
Julia WallerAug 17, 2025
How to fix excessive noise in my Airwell Itelco-Clima CLS 202 LN Chiller?
- M
  Michael RamosAug 17, 2025
  Excessive noise in your Airwell Chiller can stem from several sources. Check the following: * Examine the lines for vibration and inspect the clamping brackets, if any, to ensure they are secure. * A whistling sound from the thermostatic expansion valve may indicate the need to refill the system. * Inspect the dehydrating filter. * A noisy compressor could have seized bearings, requiring compressor replacement. * Ensure the compressor’s locknuts are tightened.
A
Amanda WardAug 20, 2025
What to do if HP alarm activates and stops my Airwell Itelco-Clima CLS 202 LN Chiller?
- B
  Billy DiazAug 20, 2025
  If the HP alarm is activated and your Airwell Chiller stops, consider these possible causes: * Check the operation of the pressure switch and replace it if it's defective. * Ensure the delivery valve is fully open; if faulty, replace it. * The presence of substances with condensable gases in the circuit may require draining the circuit. * If the condenser fan is not working, check its cables and motor; repair or replace as needed.
C
Carrie GoodmanAug 25, 2025
Why does the LP alarm activate and stop my Airwell Itelco-Clima CLS 202 LN?
- M
  morrisbrianAug 25, 2025
  The activation of the LP alarm, which causes your Airwell Chiller to stop, can be due to: * A gas leak. Identify and remove the leak. * Insufficient charge. Refill the system. * Failure of the pressure switch. Replace the pressure switch.
K
Katie HenryAug 27, 2025
How to troubleshoot an Airwell Chiller that runs but doesn't cool?
- B
  Brian StoneAug 28, 2025
  If your Airwell Chiller is running but not providing cooling, the issue might be: * Insufficient refrigerant. In this case, you should refill it. * A clogged dehydrating filter. If this is the case, replace it.
S
Scott GreenAug 30, 2025
What causes a low oil level in the Airwell Itelco-Clima CLS 202 LN Chiller compressor?
- C
  camerontoddAug 31, 2025
  A low oil level in your Airwell Chiller's compressor can be caused by: * One or more gas or oil leaks in the circuit. Identify and remove any leaks. * Mechanical failure of the compressor. Request the intervention of a Service Centre. * Anomaly of the oil heater of the compressor’s base. Check the electric circuit and the resistor of the heater of the motor base, and replace defective components.
J
Joan MoranSep 3, 2025
Why is there ice forming on the suction line of my Airwell Chiller?
- J
  Jennifer GomezSep 3, 2025
  Ice formation on the suction line of your Airwell Chiller can be caused by: * Wrong calibration of overheating. Increase overheating. * Check the charge.
N
Nancy LeeSep 6, 2025
What causes frosting on the liquid line of my Airwell Itelco-Clima CLS 202 LN Chiller?
- E
  Elizabeth SimmonsSep 6, 2025
  Frosting on the liquid line of your Airwell Chiller can occur if: * The valve of the liquid line is partially closed. Check that valves are open. * The liquid filter is clogged. Replace the cartridge or the filter.
W
Wendy GomezSep 10, 2025
Why is the liquid line of my Airwell Itelco-Clima CLS 202 LN too hot?
- K
  ksmithSep 10, 2025
  If the liquid line of your Airwell Chiller is too hot, it may be due to insufficient charge. Identify and remove the cause of the loss of charge and refill.

Airwell Itelco-Clima CLS 202 LN Specifications

General

Brand	Airwell
Model	Itelco-Clima CLS 202 LN
Category	Chiller
Language	English

Summary

Foreword

Introduction to Itelco-Clima Units

Overview of Itelco-Clima units and manual scope.

Warranty Conditions and Voiding

Details warranty terms and conditions that void the warranty.

Unit Stop Procedures

Describes emergency stop and normal stop procedures.

Manual Conventions and Safety

Explains manual symbols and safety recommendations.

Safety

Safety Foreword and Compliance

Covers compliance with directives and general safety.

Definitions of Roles

Defines OWNER and INSTALLER responsibilities.

Unit Access and General Precautions

Rules for safe access and general operational safety.

Residual Risk Precautions

Safety measures for control, mechanical, and electrical risks.

Maintenance Safety Precautions

Safety procedures before and during maintenance operations.

Safety Plates and Regulations

Details on safety labels and applicable regulations.

Refrigerant Safety Data

Safety information regarding refrigerant toxicity and handling.

Refrigerant Handling and Storage Safety

Precautions for vapor inhalation, release, disposal, and fire safety.

Refrigerant Oil Safety Data

Safety data and precautions for polyolester (POE) oil.

Transport, Lifting and Positioning

Inspection Upon Delivery

Procedure for checking the unit for transport damage.

Safe Lifting Procedures

Guidelines and precautions for lifting the unit safely.

Anchoring and Storage Guidelines

Instructions for securing the unit and storing it.

Installation

Unit Positioning Requirements

Guidelines for optimal placement and orientation of the unit.

Spring Shock Absorber Installation

Instructions for installing optional vibration-reducing shock absorbers.

External Hydraulic Circuit Setup

Requirements for the external hydraulic system.

Hydraulic Connections and Water System

Details on water connections and defrost water management.

Power Supply and Electrical Connections

Safety precautions and procedures for electrical hookup.

Terminal Box Wiring Diagrams

Wiring schematics for specific terminal boxes.

Start-Up

Preliminary Checks Before Startup

Essential checks before the unit is initially started.

Unit Startup Sequence

Step-by-step guide for initiating unit operation.

Post-Startup Operation Checks

Verification steps to ensure correct operation after startup.

User Training on Delivery

Instructions for training the end-user upon product delivery.

Control

Control System Overview

General information on the control system and its functions.

Temperature and Antifreeze Control

Details on temperature regulation and antifreeze functions.

Control Panel Display and LEDs

Explanation of the control display indicators and LEDs.

Operating Mode Startup and Switching

Procedures for starting and changing unit operating modes.

Main Alarms and Reset Procedures

List of common alarms, their causes, and reset methods.

General Description

Unit Introduction and Applications

Overview of CLS/CLH unit types and their uses.

General Unit Specifications

Details on unit construction, materials, and testing.

Compressor Specifications

Description of hermetic scroll compressors used.

Refrigeration Circuit Details

Information on the dual refrigeration circuits.

Heat Exchanger and Fan Details

Description of water, air heat exchangers, and fans.

Refrigeration System Diagrams

Schematic diagrams of CLS, CLH, and CLC refrigeration systems.

Control System and Accessories

Overview of power supply, control system, and optional accessories.

Technical Data

Evaporator Pressure Drops

Tables detailing pressure drops in the evaporator for various models.

CLS/CLC Technical Specifications

Detailed technical data for CLS/CLC STD models.

CLS/CLC Electrical Data

Electrical specifications for CLS/CLC STD units.

Fans Electrical Data

Electrical data for fans across different CLS/CLC models.

CLH Standard Electrical Data

Electrical specifications for CLH STD units.

CLH with Additional Resistances Data

Electrical data for CLH HE options with extra resistances.

Shock Absorber and Weight Distribution

Support positions and weight distribution for various units.

Overall Dimensions (CLS Models)

Dimensional drawings and data for CLS 182-302 units.

Overall Dimensions (CLS 352-602)

Dimensional drawings and data for CLS 352-602 units.

CLC Unit Refrigerant Connections

Details on refrigerant connections for CLC units.

Overall Dimensions (CLH Models)

Dimensional drawings and data for CLH 182-242 units.

Overall Dimensions (CLH 302-602)

Dimensional drawings and data for CLH 302-602 units.

Service Spaces Requirements

Required clearance for installation and maintenance.

Maintenance

General Maintenance Requirements

General guidelines for maintaining unit operation.

Planned Maintenance Schedule

Routine inspection schedule and operations.

Refrigerant Charge and Compressor Care

Procedures for refrigerant charging and compressor maintenance.

Condenser and Fan Maintenance

Instructions for cleaning condensers and checking fans.

Filter, Sight Glass, and Expansion Valve Checks

Maintenance steps for dehydrating filters, sight glass, and expansion valve.

Evaporator Cleaning and Efficiency

Guidelines for cleaning the evaporator and checking efficiency.

Troubleshooting

Cooling Issues and Noise

Troubleshooting for no cooling, ice on suction line, and noise.

Compressor and Oil Level Issues

Troubleshooting for low oil level and compressor problems.

Compressor and Alarm Faults

Troubleshooting for compressor failure, LP/HP alarms, and line issues.

Spare Parts

Recommended Spare Parts List

List of spare parts recommended for the first two years of operation.

Compressor Oil Information

Details on the type of oil used for compressors.

Wiring Diagram Location

Information on where to find wiring diagrams.

Dismantling, Demolition and Scrapping

General Dismantling and Disposal Procedures

General procedures for dismantling, draining, and disposing of units.

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Airwell Itelco-Clima CLS 202 LN User Manual

Table of Contents

Questions and Answers:

Airwell Itelco-Clima CLS 202 LN Specifications

Summary

Foreword

Introduction to Itelco-Clima Units

Warranty Conditions and Voiding

Unit Stop Procedures

Manual Conventions and Safety

Safety

Safety Foreword and Compliance

Definitions of Roles

Unit Access and General Precautions

Residual Risk Precautions

Maintenance Safety Precautions

Safety Plates and Regulations

Refrigerant Safety Data

Refrigerant Handling and Storage Safety

Refrigerant Oil Safety Data

Transport, Lifting and Positioning

Inspection Upon Delivery

Safe Lifting Procedures

Anchoring and Storage Guidelines

Installation

Unit Positioning Requirements

Spring Shock Absorber Installation

External Hydraulic Circuit Setup

Hydraulic Connections and Water System

Power Supply and Electrical Connections

Terminal Box Wiring Diagrams

Start-Up

Preliminary Checks Before Startup

Unit Startup Sequence

Post-Startup Operation Checks

User Training on Delivery

Control

Control System Overview

Temperature and Antifreeze Control

Control Panel Display and LEDs

Operating Mode Startup and Switching

Main Alarms and Reset Procedures

General Description

Unit Introduction and Applications

General Unit Specifications

Compressor Specifications

Refrigeration Circuit Details

Heat Exchanger and Fan Details

Refrigeration System Diagrams

Control System and Accessories

Technical Data

Evaporator Pressure Drops

CLS/CLC Technical Specifications

CLS/CLC Electrical Data

Fans Electrical Data

CLH Standard Electrical Data

CLH with Additional Resistances Data

Shock Absorber and Weight Distribution

Overall Dimensions (CLS Models)

Overall Dimensions (CLS 352-602)

CLC Unit Refrigerant Connections

Overall Dimensions (CLH Models)

Overall Dimensions (CLH 302-602)

Service Spaces Requirements

Maintenance

General Maintenance Requirements

Planned Maintenance Schedule

Refrigerant Charge and Compressor Care

Condenser and Fan Maintenance

Filter, Sight Glass, and Expansion Valve Checks

Evaporator Cleaning and Efficiency

Troubleshooting

Cooling Issues and Noise

Compressor and Oil Level Issues

Compressor and Alarm Faults

Spare Parts

Recommended Spare Parts List

Compressor Oil Information

Wiring Diagram Location

Dismantling, Demolition and Scrapping