What causes low exhaust pressure in a Vertiv Liebert CR025?
Low exhaust pressure in your Vertiv Air Conditioner can be caused by a refrigerant leak. Locate the leakage point, repair it, and add refrigerant. Another cause could be a faulty fan speed controller of the outdoor unit, where the output voltage remains at 100% regardless of changes in condensing pressure. If the fan speed controller is faulty, it should be replaced.
General| Brand | Vertiv |
|---|---|
| Model | Liebert CR025 |
| Category | Air Conditioner |
| Language | English |
Details the key components of the Liebert CRV4 indoor unit.
Details the EC compressor features: low noise, vibration, high reliability.
Explains the need for per-specified quality refrigerant (R410A) for optimal efficiency.
Procedures for safely transporting, unpacking, and inspecting the unit.
Details system arrangement and layout considerations for installation.
Displays mechanical parameters of the indoor unit including dimensions and weight.
Step-by-step guide for installing the indoor unit, including leveling.
Step-by-step illustration for leveling the cabinet using leveling feet.
Instructions for removing leveling feet and fixing the cabinet.
Outlines the four types of piping to be joined and general piping considerations.
Guides connecting indoor and outdoor units via brazed copper piping, mentioning dimensions.
Details procedures for charging refrigerant and adding lubricant oil.
Details standard refrigerant charge amounts for outdoor and indoor units.
Provides guidance on adding lubricant oil, types, and amounts based on pipe OD.
Guides on connecting cables for the Liebert CRV4 indoor unit.
Details connecting supply terminals L1-L3, N, PE to their counterparts.
Procedures for powering on and commissioning the system.
Mechanical and electrical preparation steps before powering on the unit.
Step-by-step procedures for vacuuming, charging refrigerant, and dynamic charging.
Details the interface screens for controlling the unit.
How to access Alarm Information, including alarm status and history.
Describes the control screen interface and its displays.
Accessing Alarm Info to view active and history alarm information.
Maintenance instructions for the refrigerating system components.
Troubleshooting steps for compressor not starting or stopping, and other cooling system issues.
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