Vertiv Liebert PEX+ Series User Manual

Liebert® PEX+Chilled Water Series
User Manual
Precision Air Conditioning

Vertiv Liebert PEX+ Series Specifications

General

Refrigerant	R410A
Compressor Type	Scroll
Humidity Control	Optional
Control System	Liebert iCOM control
Airflow Configuration	Upflow, Downflow
Dimensions (HxWxD)	Varies by model
Weight	Varies by model
Communication	Modbus, SNMP

Summary

Purpose of the Document

Styling used in this Guide

Explains the meaning of different styles used in the manual.

Version History

Details the version history of the user manual.

Product Overview

1.1. Product Introduction

Introduces the Liebert PEX+CW series of Precision Air Conditioners.

1.3. Model Nomenclature

Explains the 25-digit model nomenclature for PEX+CW series.

1.4. Components of PEX+CW Model

Provides an overview of the main components of the PEX+CW model.

1.6. Storage & Operating Environment Requirements

Details storage and operating environment requirements for the unit.

Installation

2.1. Pre-installation

Covers pre-installation steps including transportation and unpacking.

2.2. Installation Preparation (Site Preparation)

Details requirements for the equipment room and installation space.

2.3. Mechanical Installation

Provides information on mechanical installation procedures and dimensions.

2.5. Lowering the Fan

Describes the procedure for lowering the fan using the provided tool.

Electrical Installation

3.1. Installation Notes

Provides essential notes and precautions for electrical installation.

3.2. Cabling of Indoor Unit

Details the locating of electrical ports and cabling for the indoor unit.

3.3. Electrical Installation Checklist

A checklist to confirm the completion and correctness of electrical installation.

iCOM Controller Operation

4.2. Button and Indicator Panel

Describes the buttons and indicators on the iCOM controller panel.

4.4. Main Interface

Explains the main interface of the iCOM controller and its display modes.

4.5.2. Setpoints

Details how to browse and set various operational parameters (setpoints).

4.10. Teamwork Modes

Explains different teamwork modes for networked cooling units.

System Start-up Commissioning

6.1. Start-up Commissioning

Covers preparation and procedures for system start-up commissioning.

6.2. Commissioning Procedures

Details the step-by-step procedures for commissioning the unit.

System Operation and Maintenance

7.1. Routine Maintenance Inspection Items (Monthly)

Lists monthly inspection items to check system function and wear.

7.2. Routine Maintenance Inspection Items (Semi-Annual)

Lists semi-annual inspection items for system components.

7.5. Appearance Inspection and Maintenance of Controller Components

Covers visual inspection and maintenance of controller components.

7.6. Filter Maintenance Guide

Provides guidance on checking and replacing the unit's dust filter.

Diagnosis and Troubleshooting

8.1. Fault Diagnosis and Treatment of Fans

Guides on diagnosing and treating common faults related to the unit's fans.

8.2. Fault Diagnosis and Treatment of Infrared Humidifier

Guides on diagnosing and treating faults related to the infrared humidifier.

8.3. Refrigeration System - Fault Diagnosis and Treatment

Provides fault diagnosis and treatment for the refrigeration system.

Appendix I: Content of Harmful Substances in Products