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Thermo Scientific NESLAB ThermoFlex High Reliability
You can expect years of consistent operation
from the Thermo Scientific NESLAB ThermoFlex
2500 recirculating chiller. The unit features a
robust refrigeration system designed for
continuous use in a variety of applications.
The recirculation system incorporates highly
reliable plumbing connections to eliminate
leaks. Integrated air and fluid filters minimize
wear to mechanical parts, which lowers
lifetime maintenance costs and improves
system reliability.
Superior Performance
ThermoFlex 2500 chillers offer up to 10%
greater cooling capacity than comparable
units. The breadth of available options allows
you to optimize chiller performance based on
your application requirements. These chillers
also have improved noise quality ensuring a
pleasant work environment.
Easy to Use
The quick-start guide enables trouble-free
system start up. Snap in-and-out air and
fluid filters promote quick and simple
maintenance. The innovative recirculation
system includes an integrated funnel and
visual indicator for operator convenience. An
intuitive controller allows customer-defined
alarms to be set for various parameters,
ensuring your process is always in control.
Configurable to Meet Application Needs
The NESLAB ThermoFlex 2500 recirculating
chiller can be configured with a variety of
plug & play options. The result is a reliable,
easy-to-maintain, high performance unit that
can be optimized for the most demanding
cooling applications.
Product Specifications
Thermo Scientific
NESLAB ThermoFlex 2500
Recirculating Chiller
Reliable, easy-to-use chiller
optimized for the most demanding
applications. Delivers continuous
cooling capacity up to 2500 watts.
Ideal for diverse applications
within the following markets:
Semiconductor
Packaging
Analytical instrumentation
Laser
Research
Medical equipment
University
ThermoFlex-2500 11/13/07 10:13 AM Page 2 Product Specifications
Cooling Capacity
Pumping Capacity
Specifications obtained at sea level using water as the recirculating fluid, at a 20°C process setpoint, 25°C ambient condition, at nominal
operating voltage. Other fluids, fluid temperatures, ambient temperatures, altitude or operating voltages will affect performance.
Thermo Fisher Scientific reserves the right to change specifications without notice.
Setpoint Temperature Range
5°C - 40°C
41°F - 104°F
Ambient Temperature Range
10°C - 40°C
50°F - 104°F
Temperature Stability
+/- 0.1°C
Setpoint Cooling Capacity at 20°C (see graph below for cooling curves)
60 Hz
2500W (8538 BTU)
50 Hz
2200W (7513 BTU)
Reservoir Volume
Gallons 1.9

Liters 7.2

Footprint or dimensions (HxWxD)
Inches
29.1 x 17.2 x 25.7
cm
73.8 x 43.5 x 65.2
Unit Weight
lb 177

kg 80.3

Pumps (see graph below for performance curves)
PD 1 - Positive Displacement
60 Hz
2.1 gpm @ 60 psi
50 Hz
1.7 gpm @ 60 psi
PD 2 - Positive Displacement
60 Hz
4.1 gpm @ 60 psi
50 Hz
3.3 gpm @ 60 psi
Power options
Option 1
200V/50Hz/1 Phase 20A Circuit
Option 2
208-230V/60Hz/1 Phase 15A Circuit
Option 3
230V/50Hz/1 Phase 16A Circuit
Compliance
NRTL Certified to CSA and
UL Standards; CE-Marked
Product Specfications
Patented full flow filter ensures clean fluid
to your application and is easily accessible
for cleaning.
ThermoFlex-2500 11/13/07 10:13 AM Page 3 Removable Grill
Locking Casters
Level Indicator
Integrated
Air Filter
Integrated Funnel
Power Button
Controller Display
Unit Drain
Process Fluid
Inlet
Process Fluid
Outlet
Auxiliary Port
Circuit
Protection
Power
Receptacle
Auto refill
Allows for self-filling of the chiller to ensure that the proper level in reservoir is maintained,
saving valuable time.
Anti-drainback
Ensures reservoir does not overflow when chiller is shut down. This allows the chiller to be
installed more than 24 ft. below the application.
DI resistivity internal
DI filtration internal to the chiller is used to maintain the resistivity level below 3 Mohm, with
an alarm at 1 Mohm. This minimizes footprint and eliminates downtime needed to change
the filter, while ensuring constant quality of DI water to your application.
Pressure relief
Easily adjustable pressure relief valve allows for control of the outlet pressure from the
chiller to be regulated, ensuring your process performance requirements are met.
Flow Control
Utilizes a 3-way valve that allows you to control the amount of flow to the application. The
process flow is measured on the return to the unit, ensuring the appropriate amount of flow
is provided to the application.
Pressure/Flow Control
Allows you to control the pressure as well as the flow in your application. Utilizes a pressure
relief valve and monitors the flow through the process return and displays the reading on the
controller.
Water-Cooled
Uses facility water to cool the system, minimizing heat dissipation into the environment.
Feature
Benefit
Feature
Details
Key Options Include
Key Accessories Include
Installation Kit
Supply and return plumbing available in 25 and 50 ft lengths, suitable for temperatures up to
+80°C.
Fluid Quality Kit
Complete fluid quality system includes algaecide and corrosion inhibitor to ensure your process
has optimal fluid quality.
Ethylene Glycol
Laboratory-grade ethylene glycol allows circulation to temperatures down to -20°C in a 50/50
mixture with water. Available in a 5 gallon container.
Propylene Glycol
Laboratory-grade propylene glycol allows circulation to temperatures down to -20°C in a 50/50
mixture with water. Available in a 5 gallon container.
Maintenance Kit
Includes condenser air filters and in-line fluid filters for ease of maintenance.
ThermoFlex-2500 11/13/07 10:13 AM Page 4 About Thermo Fisher Scientific
Thermo Fisher Scientific (NYSE: TMO) is the world leader in serving science, enabling our customers to make the world healthier,
cleaner and safer. With annual sales of more than $9 billion, we employ 30,000 people and serve over 350,000 customers within
pharmaceutical and biotech companies, hospitals and clinical diagnostic labs, universities, research institutions and government
agencies as well as environmental and industrial process control settings. Serving customers through two premier brands,
Thermo Scientific and Fisher Scientific, we help solve analytical challenges from routine testing to complex research and
discovery. Thermo Scientific offers customers a complete range of high-end analytical instruments as well as laboratory equip-
ment, software, services, consumables and reagents to enable integrated laboratory workflow solutions. Fisher Scientific provides
a complete portfolio of laboratory equipment, chemicals, supplies and services used in healthcare, scientific research, safety and
education. Together, we offer the most convenient purchasing options to customers and continuously advance our technologies to
accelerate the pace of scientific discovery, enhance value for customers and fuel growth for shareholders and employees alike.
Visit www.thermofisher.com.
©2007 Thermo Fisher Scientific. All rights reserved. The information contained herein is subject to change without notice. Any trademarks, trade names or
copyrights remain solely the property on the manufacturer unless otherwise stated. The only warranty for Thermo Scientific products are set forth in the express
limited warranty statements accompanying such products and services. Nothing herein should be construed as constituting additional warranty. Thermo Fisher
Scientific shall not be liable for technical or editorial errors or omissions contained herein. ThermoFlex is a trademark of Thermo Fisher Scientific.
Benelux
Tel. +31 (0) 76 579 55 55
info.tc.nl@thermofisher.com
China
Tel. +86 (21) 68 65 45 88
info.china@thermofisher.com
France
Tel. +33 (0) 1 60 92 48 00
info.tc.fr@thermofisher.com
For more information about Thermo Scientific NESLAB recirculating chillers, visit www.thermo.com/thermoflex
Germany
Tel. +49 (0) 721 4 09 44 44
info.tc.de@thermofisher.com
India
Tel. +91 (22) 27 78 11 01
info.pid.in@thermofisher.com
United Kingdom
Tel. +44 (0) 1785 82 52 00
info.tc.uk@thermofisher.com
USA
Tel. 603 436 9444
info.tc.us@thermofisher.com
PSTHERMOFLEX2500V1.0E07/07TC
Laboratory Equipment
25 Nimble Hill Road
Newington, NH
(800) 258-0830
www.thermo.com
Division
03801
(603) 422-9422 fax
ThermoFlex-2500 11/13/07 10:13 AM Page 1