Vertiv Liebert CRV CRD25 User Manual (English)

Questions and Answers:

D
Derek SchroederAug 6, 2025
What to do if there is water on the floor around Vertiv Cooling boxes?
- N
  Nathan MccoyAug 7, 2025
  If you find water on the floor around your Vertiv Cooling boxes, first, adjust the leveling feet to ensure the unit is properly leveled. Then, check the unit condensate drain pipe for any clogs and remove any obstructions. Inspect the piping insulation for breaks or damage and restore its integrity. If these steps don't resolve the issue, there may be a leak in the draining circuit or humidifier filling hose, or the condensate pump could be faulty, in which case you should contact Vertiv Technical Support.
K
Kelly MillerAug 11, 2025
What to do if the HMI display doesn't operate and the Vertiv Cooling boxes unit doesn't operate?
- C
  cgonzalesAug 11, 2025
  If the HMI display and the Vertiv Cooling boxes unit are not operating, first, restore the electrical supply to the unit. If the electrical supply is on, switch on the unit's main switch. If the problem persists, it may be due to a control board supply or control board issue, in which case you should contact Vertiv Technical Support.
M
Micheal MillerAug 15, 2025
Why Vertiv Cooling boxes carry water drops by airflow?
- C
  Christina PriceAug 15, 2025
  If your Vertiv Cooling boxes are carrying water drops by airflow, check the room condition to ensure the room humidity is within acceptable limits. If the humidity is normal, the condensate pan drain may be clogged or there might be a problem with the humidifier control, in these cases, it is recommended to contact Vertiv Technical Support.
A
Allison JohnsonAug 19, 2025
How to troubleshoot a non-operational local display on Vertiv Cooling boxes while the unit operates?
- A
  Anna StevensonAug 20, 2025
  If the local display on your Vertiv Cooling boxes is not operational but the unit continues to operate, first, check if the local display cable is disconnected and connect it. If the cable is connected, inspect it for damage and replace it if necessary. If the issue persists, the local display configuration may be lost, and you should contact Vertiv Technical Support.
S
shannoncarrieAug 23, 2025
Why is the air delivery temperature unsteady in Vertiv Cooling boxes?
- D
  Debbie Ward DDSAug 25, 2025
  If you are experiencing unsteady air delivery temperature from your Vertiv Cooling boxes, it could be due to a faulty temperature sensor or a unit controller issue, in these cases, it is recommended to contact Vertiv Technical Support.
A
Alexander HooverAug 28, 2025
What to do if the fan fails to start in Vertiv Cooling boxes?
- R
  Rachel MontgomeryAug 28, 2025
  If the fan in your Vertiv Cooling boxes fails to start, it may be faulty, in this case, contact Vertiv Technical Support.

Vertiv Liebert CRV CRD25 Specifications

General

Model	CRD25
Cooling Capacity	25 kW
Type	Row-based cooling
Refrigerant	R410A
Operating Temperature Range	18-32 °C
Humidity Range	20% to 80% RH

Summary

Important Safety Instructions

Product Overview

Model Nomenclature

Defines the model number structure for CRD25 and CRD35 cooling units.

Name Plate and Components

Illustrates the location of the name plate and identifies key components of the unit.

Component Location

Details the physical location of various components within the unit assembly.

Accessories

Lists the accessories provided with the cooling unit.

System Data

Presents technical specifications and operating limits for the CRD25 and CRD35 units.

Pre-installation Preparation

Tools Required

Lists the essential tools needed for the installation of the unit.

Dimensions and Weights

Provides detailed dimensions and weight specifications for the CRD25 and CRD35 units.

Clearance Requirements

Specifies the necessary clearance around the unit for proper installation and access.

Inspecting the Unit

Outlines the procedure for inspecting the unit upon arrival and before unpacking.

Moving the Packaged Unit

Details the safe methods and precautions for moving the packaged unit using a forklift.

Unpacking the Unit

Provides step-by-step instructions for unpacking the cooling unit.

Removing the Unit from the Pallet

Guides the user on safely removing the unit from its shipping pallet.

Installing in Enclosure Row

Leveling the Unit

Explains the procedure for leveling the unit using adjustable feet.

Removing the Feet and Fixing the Unit (Optional)

Describes how to remove feet and secure the unit to a mounting bracket.

Combining the Unit with Adjacent Cabinets

Details the process of joining the unit with neighboring cabinets using baying brackets.

Location of the Main Grounding Point

Identifies the location of the main grounding point on the unit.

Removing Compressor Fixing Plates

Guides on removing compressor fixing plates after installation.

Installing the Top Frame without the Front Frame

Details installing only the top frame on the unit.

Installing the Top Frame and the Front Frame

Provides steps for installing both the top and front frames.

Piping and Refrigeration Connections

General Arrangement

Shows a diagram illustrating the general arrangement of the refrigeration circuit components.

Connecting Drainage Pipes

Explains how to connect the condensate drainage pipes from the unit.

Connecting Water Supply for Humidifier

Details the procedure for connecting the water supply to the humidifier.

Connecting Gas Pipe and Liquid Pipe

Provides instructions for connecting the gas and liquid refrigerant pipes.

Electrical Connections

Connecting Power Supply Cable

Guides on connecting the main power supply cable to the unit.

General Arrangement

Explains the general layout for connecting communication cables.

Connecting Communications Cable between Evaporator and Condenser

Instructions for connecting communication cables between unit sections.

Connecting the Water Leakage Sensor (Optional)

Describes connecting an optional water leakage sensor.

Connecting the Static Pressure Sensor (Optional)

Details connecting an optional static pressure sensor.

Connecting the Monitor Device to Unity Card (Optional)

Explains connecting a monitor device to the Unity Card.

Connecting Alarm Device (Optional)

Guides on connecting an optional alarm device.

Connecting Remote Temperature Sensors (Optional)

Instructions for connecting optional remote temperature sensors.

Connecting the Remote On/Off Device (Optional)

Details connecting an optional remote on/off device.

Connecting for Teamwork

Explains how to set up units for teamwork operation.

Start-up

Amount of Refrigerant and Lubricating Oil

Specifies the correct amounts of refrigerant and lubricating oil required.

Evacuating the Unit

Guides on how to properly evacuate the unit before charging refrigerant.

Adding Lubricating Oil

Provides instructions for adding lubricating oil to the unit.

Charging the Refrigerant

Explains the procedure for charging the refrigerant into the system.

First Start-up (or After Long Standstill)

Details the procedure for the first start-up or after a prolonged period of inactivity.

Automatic Restart

Describes the unit's automatic restart behavior after power interruptions.

HMI Display

Appearance

Describes the visual appearance and basic layout of the HMI display.

Home Page

Explains how to access and navigate the HMI home page.

Control Mode

Details how the unit's compressor and fans are controlled based on various parameters.

Menu Structure and Parameters

Refers to a separate section detailing the HMI menu structure and parameters.

Alarm Information

Explains how to view and interpret active and historical alarms on the HMI.

Teamwork Control

Describes settings for controlling multiple units working together.

Maintenance

Maintenance Schedule

Provides a schedule for regular maintenance checks and tasks.

Air Filters

Details the procedure for checking and replacing air filters.

Condensate Drain and Condensate Pump

Explains maintenance for condensate drainage and pump systems.

Condenser

Outlines maintenance procedures for the unit's condenser.

Fan

Provides instructions for replacing the unit's fans.

Electric Heater

Details maintenance procedures for the electric heater component.

Humidifier

Guides on removing and maintaining the humidifier.

Refrigeration Circuit

Notes for maintaining the unit's refrigeration circuit.

Dismantling the unit

Instructions for safely dismantling the unit at the end of its life.

Troubleshooting

Lists common problems, their causes, and corrective actions.

Regulation (EU)

Appendices

Menu Structure

Details the structure and parameters found in the HMI menu system.

Alarm Table

Lists and describes all possible alarms generated by the unit.

Conformity to EU Directives

Declares the product's conformity with relevant European Union directives.

Technical Support and Contacts

Provides contact information for technical support and service.

Vertiv Liebert CRV CRD25 User Manual

Table of Contents

Questions and Answers:

Vertiv Liebert CRV CRD25 Specifications

Summary

Important Safety Instructions

Product Overview

Model Nomenclature

Name Plate and Components

Component Location

Accessories

System Data

Pre-installation Preparation

Tools Required

Dimensions and Weights

Clearance Requirements

Inspecting the Unit

Moving the Packaged Unit

Unpacking the Unit

Removing the Unit from the Pallet

Installing in Enclosure Row

Leveling the Unit

Removing the Feet and Fixing the Unit (Optional)

Combining the Unit with Adjacent Cabinets

Location of the Main Grounding Point

Removing Compressor Fixing Plates

Installing the Top Frame without the Front Frame

Installing the Top Frame and the Front Frame

Piping and Refrigeration Connections

General Arrangement

Connecting Drainage Pipes

Connecting Water Supply for Humidifier

Connecting Gas Pipe and Liquid Pipe

Electrical Connections

Connecting Power Supply Cable

General Arrangement

Connecting Communications Cable between Evaporator and Condenser

Connecting the Water Leakage Sensor (Optional)

Connecting the Static Pressure Sensor (Optional)

Connecting the Monitor Device to Unity Card (Optional)

Connecting Alarm Device (Optional)

Connecting Remote Temperature Sensors (Optional)

Connecting the Remote On/Off Device (Optional)

Connecting for Teamwork

Start-up

Amount of Refrigerant and Lubricating Oil

Evacuating the Unit

Adding Lubricating Oil

Charging the Refrigerant

First Start-up (or After Long Standstill)

Automatic Restart

HMI Display

Appearance

Home Page

Control Mode

Menu Structure and Parameters

Alarm Information

Teamwork Control

Maintenance

Maintenance Schedule

Air Filters

Condensate Drain and Condensate Pump

Condenser

Fan

Electric Heater

Humidifier

Refrigeration Circuit

Dismantling the unit

Troubleshooting

Regulation (EU)

Appendices

Menu Structure

Alarm Table

Conformity to EU Directives

Technical Support and Contacts