Vertiv Liebert PCW - User Manual

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Liebert® PCW

High Efficiency

25-200 kW Chilled Water Room Cooling Units

L-C Version (single chilled water circuit)

X-R Version (redundant - double chilled water

circuit)

User Manual

English, Cod. 273895, rev. 04.10.2018

Main Page

Important Safety Instructions3
Main Switch3
Table of Contents8
General Description10
Single Chilled Water Circuit - L- C Versions10
Double Chilled Water Circuit - X- R Versions10
Operating Limits11
Noise Level Limits11
Preliminary Operations11
Safety Information11
Equipment Inspection11
Packing Material11
Recommended Unit Handling Equipment12
Handling the Unit While Packaged12
Unpacking the Unit (Standard Height Unit, Coil Module and Fan Module)12
Moving to the Installation Location with Piano Jacks12
Unit Weight13
Assembly13
Extended Height Unit: Upflow13
Extended Height Unit: Downflow Up, Downflow down14
Positioning15
Positioning: Upflow, Downflow Frontal, Downflow up15
Positioning: Downflow down15
Water Connections16
General Warnings16
Condensate Drain (for Unit Without Condensate Pump) (Fig. A)16
Condensate Drain for the Extended Height Downflow up and Downflow down Units16
Condensate Pump16
Humidifier (Optional): See Enclosure a16
Hot Water (Optional)16
Chilled Water Connections16
Pipe Connection Extended Height Unit17
Adding Ethylene Glycol18
Electrical Connections19
Wye Vs. Delta Connection Power Supply for PCW19
Fan Module Electrical Connections (Extended Height Unit Only)19
Power Supply Cable Connection22
Protective Features of EC Fan22
Start- up22
First Start - up22
Starting and Stopping23
Automatic Restart23
Operation23
Calibrations24
Chilled Water Valve24
Water Leakage Sensor (Liquistat)24
Environment Protection24
Maintenance / Spare Parts25
Safety Instructions25
Spare Parts25
Maintenance Schedule25
Air Filter Check and Replacement25
Downflow Units25
Upflow Units26
EC Fan Replacement26
Dismantling the Unit27
Start-Up and Operation31
Maintenance31
Periodical Checks31
Electrical Heating37
Power Supplies58

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Vertiv Liebert PCW Specifications

General

Brand	Vertiv
Model	Liebert PCW
Category	Fan
Language	English

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