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Liebert PX018 User Manual

Liebert PX018
153 pages
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Liebert® PDX and PCW™
ThermalManagementSystems
3 to 8 Ton (11 to 29 kW) Capacity,
UpflowandDownflow,60Hz
Installer/User Guide

Table of Contents

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Liebert PX018 Specifications

General IconGeneral
Input Voltage208/240/380/415V
Power Rating18kVA
Frequency50/60 Hz
Amperage50A
Phases3
Input Frequency50/60 Hz
Phase3
Operating Temperature Range0°C to 40°C
ModelLiebert PX018

Summary

Important Safety Instructions

Nomenclature and Components

Liebert PDX Model-Number Nomenclature

Details the 25-digit configuration number for Liebert PDX units.

Liebert PCW Model-Number Nomenclature

Explains the 25-digit configuration number for Liebert PCW units.

Pre-Installation Preparation and Guidelines

Connections and System Setup

Covers drain requirements, electrical service, and piping/ductwork planning.

Operating Conditions

Specifies return-air requirements for cooling, humidification, dehumidification, and heating modes.

Equipment Inspection and Handling

Piping and Refrigerant Requirements

Refrigerant Piping and Charging

Provides essential information and warnings for refrigerant system handling.

Electrical Connections

Wye- and Delta-connected Power Supply for PDX and PCW

Details acceptable and unacceptable power supplies by model and voltage.

Checklist for Completed Installation

Electrical Installation Checks

Ensures correct voltage, wiring, grounding, and component checks.

Piping Installation Checks

Verifies piping completion, leak checks, charging, and proper sizing/trapping.

Initial Start-Up Checks and Commissioning Procedure for Warranty Inspection

Maintenance

Blower Drive System—EC Fans

Maintenance procedures for EC fan impellers, bearings, and troubleshooting.

Steam-generating Humidifier Maintenance

Covers canister replacement, drain valve cleaning, and troubleshooting.

Compressor Maintenance

Details on compressor oil, scroll/digital-scroll maintenance, and motor burnout.

Preventive Maintenance Checklist

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