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Scroll Compressor Technology:
Higher Efficiency and Reliable Operation
Reliable Compressor Technology
The scroll compressor design provides high efficiency,
low sound levels and excellent durability. The Liebert
Challenger 3000 precision cooling system is available
with either:
A standard fixed-capacity scroll compressor
A Digital Scroll compressor with energy saving,
variable capacity operation (available on self-
contained units only)
The Standard Scroll Compressor:
Rugged, Quiet, Efficient
The standard scroll compressor is available on both
split system and self-contained designs. It offers
efficient, reliable performance with a robust design
that contains few moving parts. Quiet operation
is accomplished through a continual, smooth
compression process. Discharge gas and vibration
are kept at a low level. It operates at 11.3 EER,
among the highest ratings in the industry.
The Digital Scroll Compressor: The Choice
For Performance And Reliability
The exclusive digital scroll compressor option is
available on self-contained Liebert Challenger 3000
models. It includes all of the quality features of the
standard scroll compressor while utilizing the latest
control technology to deliver precise operation and
significantly higher energy efficiency. Digital Scroll
technology provides infinitely variable capacity
modulation that enables the output to precisely match
the cooling demands of the room. This approach is
as much as 30 percent more efficient than traditional
hot-gas bypass when the system needs to operate
at a reduced capacity.
Benefits include:
Greater energy savings—variable capacity
system allows maximum load tracking for
higher efficiency.
Improved reliability—by reducing compressor
cycling and component wear.
Improved performance—the compressor can
easily adapt to changing load conditions,
providing precise temperature control.
100%
Load
10%
Initial Load
Future Load
Digital Scroll Capacity adapts as load changes
Digital Scroll Capacity Control Diagram
50% Load
33% Load
7.5 secs
7.5 secs
0%
capacity
100%
capacity
15 secs
15 secs
10 secs
5 secs
- Challenger 1
- Ideal Applications 3
- Liebert Commitment To Quality 3
- Liebert iCOM 4
- Control : 4
- Optimized System Performance 4
- Monitoring: 5
- 50% Load 6
- 33% Load 6
- All Components From 7
- One Manufacturer 7
- Power Contracts 9
- Remote Monitoring 9
- Air Flow Requirements 11
- Which is best for you? 11
- EmersonNetworkPower.com 12
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