An Industrial grade centrifugal chiller for your
critical commercial needs.
Carrier chillers have always been known for their
reliability. In fact, many of our industrial chillers have been
operating nonstop, except for normal maintenance, for more than
50 years.
19EX Hermetic Centrifugal Chiller brings that same
reliability to the commercial market. Every aspect of this large-capacity
chiller has been designed to assure smooth, efficient operation.
A Chiller For The Long Haul
Whether you're installing a chiller in a new project
or replacing and existing unit, you can count on the 19EX Hermetic
Centrifugal Chiller to meet your most demanding needs. From the
design of its compressor to its heavy-duty construction, every
aspect of the 19EX is geared for decades of exceptional performance.
And because the 19EX is specifically designed to
use HFC-134a, a non-ozone depleting refrigerant, you'll never
have to worry about it being affected by the mandatory phaseout
of chlorine-based CFC and HCFC refrigerants.
The right refrigerant, however, is only half of the
equation. Chiller reliability is just as important, outweighing
other considerations, including first cost and energy efficiency.
Why? Because of the high cost of unexpected downtime in your facility.
But will the 19EX really operate more reliably, resulting
in greater value to you and your operation? Absolutely. And here's
why
Compressor Design Ensures Reliability
Our engineers took the best features of Carrier's
industrial chillers and applied them to the 19EX, providing you
with the optimum solution for your chillers needs.
Steel-Backed, Babbitt-Lined Bearings.
The bearings' steel backing provides the structural support needed
to absorb high radial and axial loads, while the babbitt lining
protects the shaft from scoring should there ever be a lubrication
failure. This eliminates the possibility of costly shaft replacement.
Epoxy-Coated Compressor Casting.
Keeps impurities out of the lubrication system.
Tilting-Pad Thrust Bearings.
For superior handling of axial forces, this Kingsbury-type bearing's
eight floating pads automatically align in a wedge formation to
ensure load-carrying surfaces are separated by a thick film of
lubricant - even during accidental reverse rotation - reducing
wear and increasing bearing life.
Two-Stage Design. Offers
higher lift capabilities than single stage units, allowing the
19EX to use an Interstage Flash Economizer that increases refrigeration
effect and cycle efficiency.
Double Helical Gears.
Double helical gears transmit higher horsepower loads more smoothly,
eliminating the thrust load generated by the gears during the
transmission of larger horsepowers. The result is a longer transmission
life.
Hermetic Motor. Eliminates
a host of problems associated with open-drive designs, including
shaft seal leakage, shaft alignment problems, high noise levels
and machine room cooling requirements, And since it's refrigerant-cooled,
it's more efficient, smaller, lighter, and requires less inrush
current.
Float Valve Control System.
This superior system maintains the optimum refrigerant level
in the cooler under any load condition, increasing chiller efficiency.
Heat Exchanger Designed For Long Life
Although the compressor is the most critical part
of any chiller, it isn't the only components that impacts system
and reliability.
ASME-Certified Heat Exchangers.
19EX heat exchangers are ASME Certified on both the refrigerant
and water sides. Independent inspectors not only review design
calculations, they inspect each weld, rejecting any work that's
not up to stringent ASME standards.
Skip-Fin Tube Design.
Heat exchangers are only as good as what's in them. Our units
utilize tubes with a unique Skip-Fin Tube Design that eliminates
internal and external finning where tube comes in contact with
support sheet, creating a superior bond. And because the tube
is thicker where it isn't finned, the possibility of tube failure
due to vibration and wear is greatly reduced.
Double-Grooved Tube Sheets.
Each tube is expanded, then rolled into the Double-Grooved Tube
Sheets, forming a leak-tight seal between water and refrigerant.
Cooler tubes are also expanded into the closely-spaced intermediate
support sheets, locking the tubes securely in place within the
heat exchanger's volatile environment.
Modular Design For Easy Installation
Carrier understands the importance of easy installation,
especially in chiller replacement. Our 19EX chiller was designed
to make installation fast and trouble-free.
Single-Piece Modular Construction.
Single-piece shipment ensures leak-tight integrity and eliminates
costly, time-consuming field assembly for new projects. Bolt-together,
modular construction makes it ideally suited for replacement projects,
where ease of disassembly and reassembly is critical to reducing
installation time and expense.
Simplified Operation And Maintenance
Microprocessor Control System.
A state-of-the-art, user-friendly control system makes machine
operation and maintenance simple. And the 19EX chiller's product
integrated control (PIC) feature allows full system integration
with the Carrier Comfort Network.
Bearing Access Cover Plate.
Provides easy access to the double helical gears, split-sleeve
journal bearings and tilting-pad thrust bearing. Technicians can
quickly check tolerances and actually remove bearings to check
surface wear without compressor disassembly, saving you time,
money and reducing the likelihood of a catastrophic failure.
Optional Marine Water Boxes.
Marine Water Boxes are available on both cooler and condenser,
so field-installed piping doesn't have to be removed for tube
cleaning. The Float Valve Flow Control System is also fully accessible
through flanged bolted covers.
Integral Refrigerant Storage Vessel.
Allows the 19EX to stand alone in a machine room that incorporates
different refrigerants, eliminating refrigerant mixing and contamination
as well as the costs associated with purchasing, installing and
maintaining remote storage systems. Now that's added value!
Once you see the big picture, it's easy to see why - when it comes to quality, reliability and value - carrier's 19EX is setting a new standard. But that shouldn't be surprising after leading the industry for more than 75 years, we're not about to stop now!