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Liebert DM
Precision Cooling for Small Equipment Rooms
Liebert DM is designed for year-round temperature and humidity control and air filtration in areas where people and electronics must occupy the same space. Its low profile permits floormount or wallmount installation, and requires little or no floor space. |
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Features and Benefits
- Low total cost of ownership
- Energy saving mode available
- Adapts to different environments
- Designed for reliability
- Provides consistent and stable operating environment 24 x 7 x 365
- Low mean time to repair (MTTR)
- Maintenance free design for daily
operation
- Standard RS485 port for monitoring
- Small footprint, 100% front access
- Highly efficient cooling system
- Ultra wide ambient temperature range and multicondenser configuration
- High sensible heat ratio with scroll
compressor technology |
The Liebert DM is ideally suited for:
- Communications Base Stations
- 3G Base Stations
- Small / Outdoor equipment rooms
- Satellite earth stations
- Medium/Small Computer Rooms
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Frequently Asked Questions
Why do I need Precision Air Conditioning?
Information processing is the “lifeblood” of all critical operations. When downtime hits these critical operations, it can lead to lost revenue and opportunities. IT or machines produce an unusual concentrated heat load and at the same time, are very sensitive to changes in temperature and humidity. Unstable air conditioning can produce problems ranging from processed “gibberish” to a complete system shutdown.
Comfort air cooling is not designed to handle the heat load concentration and heat load profile of technology rooms, nor is it designed to provide the precise temperature and humidity needed for these applications. Precision air conditioning, however, provides high reliability year-round operation, with the ease of service, sophisticated control and redundancy necessary to keep the computer room up and running 24x365.
How could I sell Liebert DM units which are 2 to 4 times more expensive compared to comfort air cooling brands such as Daikin, Panasonic, Hitachi and others?
Greater savings in electricity consumption should be the main selling pitch for the Liebert DM. By integrating the Liebert DM into their critical operations, customers can significantly reduce their energy bills because of the unit’s great energy efficiency. Low Total Cost of Ownership (TCO) is another aspect we can emphasize to customers. Please utilize the Cost Analysis Calculation Workout with your customers.
Is Liebert DM difficult to install?
Similar to comfort air cooling, the Liebert DM is easy to install with indoor and outdoor units mounted on the floor and connected with copper pipes. A competent air cooling contractor can handle the installation.
What are the cooling capacity models of Liebert DM?
The Liebert DM is available in 5.5kW and 7.5kW capacity models with single-phase power supply, and 7.5kW and 12.5kW capacity models with three-phase power supply.
What benefits do we get from Liebert DM over comfort air conditioning?
The Liebert DM precision air conditioning provides customers with:
- 30% sensible cooling efficiency
- 1.5x more airflow to prevent hot spots
- 20% air filtration eff ciency
- low MTTR (mean time to repair)
- 2x longer operating life
- greater reliability for 24x365 operations
- sophisticated microprocessor control
When did Emerson start manufacturing precision air conditioning?
Since 1965, Emerson Network Power has been the pioneer in the development and manufacture of precision air conditioning equipment with worldwide service support. Emerson’s precision cooling range is designed for continuous operation, and flexible to address custom load arrangement and future upgrades.
Can Liebert DM work with 1 duty and 1 standby with auto switch over function?
Yes, it can be done through Liebert Controllers which monitor running and stand-by environmental units for proper operation individually, switching operation to a redundant unit in the event of a problem through lead-lag switches via 2-wire communications. This will also balance the runtime of environmental systems for even wear and long system life.
What is the compressor used in Liebert DM?
Liebert DM integrates Copeland Compliant Scroll Compressor, which features superior reliability, effi ciency and long lasting build.
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