About Legacy's Patented Chiller Economizer Technology?
Call TOLL Free
877-988-5464
Email: Support@legacychillers.com
Submit Contact Request. We normally respond
in one hour or less.
Privacy Statement: Legacy absolutely does NOT distribute contact
information.
|
In the U.S. market alone, there are over two hundred thousand
process chillers in operation. Industry research suggest only
about three percent of these chiller systems have been retrofit
with any significant way to reduce KWH. According to a
recent IFMA study
facility managers see energy conservation
as a top priority for the future.
To this growing need, Legacy Chiller Systems has developed the
first Chiller Economizer Retrofit System that can be deployed on
any brand chiller. These chiller systems can
reduce process cooling energy costs a much as 60% depending on
your operating environment.
Target Markets:
Chiller Economizer Retrofit Systems can be ideal for deployment in many
climate regions throughout North America and Europe. In early
2009, Legacy Chillers continues
Case Studies in several major
U.S. and Canada markets. Using data collected from these
case studies, Legacy Chillers had developed an MS XL based
Chiller Energy Audit Tool to help customers quickly determine
savings potential.
 How Our
Retrofit Chiller
Economizer Works:
Legacy's Chiller Economizer Retrofit Systems are very similar to
our
Integrated Chiller Economizer
Technology. In the case of retrofits, Legacy's
Patented Economizer Technology is built into a standard fluid
(or Dry) cooler. With the electronics already on board, these
retrofit systems are easy to install and are designed to be
stand alone. Legacy also offers an Optional Remote Chiller
Interface (RCI) that will provide the Economizer Controller with
automatically lock out mechanical cooling as needed for
additional energy savings.
When chiller cooling is needed, the onboard Economizer
Controller begins to check outdoor air temperature on
approximately ten second intervals. If the outdoor air
temperature is approximately five degrees (F) cooler than process
fluid temperature, the Economizer Controller will be
automatically switching between four economizer states:
Mechanical
Cooling State: Outdoor air temperature has risen above the
Economizer deployment threshold temperature. While in this
operating condition, the Economizer Controller will stop
process fluid flow to the fluid (or dry) cooler and turn off
it outside air circulation fan(s).
Combination
State: Outdoor air temperature remains below the
Economizer deployment threshold. While in this operating
condition, the Economizer Controller will direct process fluid
to a remote mounted fluid (or dry) cooler. At the same time,
fluid (or dry) cooler fan(s) will be turned on. During the
call cycle, the Economizer Controller will attempt to maintain
desired process cooling setpoint using the economizer as much
as possible saving additional KWH.
Economizer
Cooling State (Optional RCI Needed) : Outdoor air temperature remains below the
Economizer deployment threshold. Process load and outdoor
temperature conditions exists making it possible for the
Economizer to maintain the process cooling setpoint. While in
this operational state the Economizer Controller will lockout
mechanical cooling creating significant KWH reductions.
Chiller
De-ice State (Optional RCI Needed): When outdoor air temperature remains below
the Economizer deployment threshold for prolong periods of
time, by design the mechanical cooling system will be deployed
less. This can create opportunities for ice and snow to
build up within condenser fans causing damage to air-cooled
condenser fans. To address this potential problem, the
Economizer Controller allow mechanical cooling to run on
specially programmed intervals preventing damaging ice
buildup.
Alarm
State(Optional RCI Needed):
In the event of a mechanical cooling system failure, the
process fluid temp will begin to rinse. Once the process fluid
increases to a point where Economizer cooling can be used, the
Economizer controller will automatically start taking over
full cooling until mechanical cooling can be repaired.
For
more information or an on-line presentation on how Legacy
Economizer system works, please contact or engineering office at
877-988-5464 x 101
|
