DIRECTNEWS
Product News and Technical Information for HVAC Professionals
> In this Issue:
New Product Spotlight:
CM Actuator
Product Review:
AFA24-SR US
Features:
Straight Answers about
PI Valve Technology
Fire & Smoke:
Shelter in Place: Practical
Technical Considerations
Belimo University
7 World Trade Center, New York, NY
Belimo is ready to help you!
Welcome to the Belimo family!
We value you as a customer. Belimo
CM
Compact & Flat
stands behind its products and has
plenty of resources ready to help you
should you need it.
Belimo Americas
Like No Other.
43 Old Ridgebury Road
Danbury, CT 06810
800.543.9038
203.791.9915
Fax: 800.228.8283
203.791.9919
1675 East Prater Way
Suite 101
Sparks, NV 89434
B
ELIMO IS PLEASED to announce the release of a new compact actuator, the CM.
The CM actuator measuring 5.83” by 2.18” and 0.63” tall fits in the smallest of
spaces. The CM includes universal clamp, a simple one screw anti-rotational bracket,
easily adjustable end stops or remove the stops for continuous rotation. Quick and easy
mounting completes the features the CM offers. Designed for new construction, retrofit,
residential and OEM markets, this compact unit is beneficial addition to existing
actuator market.
800.987.9042
It’s easy to mount the CM actuator for air
775.857.4243
dampers by simple direct-coupling to shafts from
Fax: 800.987.8875
0.25” to 0.50”. The CM actuator affords operators
775.857.4255
the ability to mount linearly from 1.3” to 3.5” from
the shaft. The anti-rotational bracket mounts with
Midwest Service Center
877.833.1647
Belimo Americas (CANADA)
14/16 - 5716 Coopers Ave.
Mississauga, Ontario
L4Z 2E8
only a self tapping screw or rivet making
installation uncomplicated. Effortless and trouble
free installation along with a 5 year warranty
equates to a reduction in installation and
maintenance costs.
[ Belimo’s new compact actuator, the CM ]
The new CM uses only 0.5 Watts while
866.805.7089
producing 18 in lbs of torque. Connecting to the CM is easy with a terminal block or
905.712.3118
with a 1 meter plenum cable. All models bear the cULus and CE mark and are listed in
Fax: 905.712.3124
accordance with UL 60730.
Patented HALOMO technology, developed exclusively by Belimo, allows the new CM
Quebec & Eastern Canada
Service Center
866.928.1440
450.928.1440
Fax: 450.928.0050
actuator to employ state-of-the-art brushless DC motor technology. There are no brushes
to wear or commutator to foul, providing constant running time independent of load.
Other rugged design features include: universal clamp, a reflective position indicator, an
easy magnetic manual override, and NEMA 2 (cable version only) and IP54 enclosures,
make these actuators the very best available. The variations of the CM are: open/close,
To receive Belimo product literature, or
to sign up for Belimo eNews
email: [email protected]
modulating or floating point control for 24 VAC/DC or 110 VAC/230 VAC voltages.
For further information, email [email protected] for complete technical
specification or go to www.belimo.us. ■
[ 2]
BELIMO
UPDATE
Need a
COST COMPETITIVE,
HIGH TORQUE,
FAIL-SAFE ACTUATOR?
G
by Alexander G. van der Weerd
President, Belimo Americas
et the AFA and save money. The AFA24-SR US
offers the same quality and reliability you
have come to expect in an AF actuator but without the
signal feedback. Customers have indicated that the
majority of applications do not have a requirement for
signal feedback. The AFA series actuators provide true
spring return fail-safe design. Actuator sizing should be done
in accordance with the damper manufacturer’s specifications. The actuator is mounted
directly to the damper shaft.
The AFA24-SR US offers:
■
9% price advantage over AF24-SR US
■
Same features without the feedback*
AFA24-SR US: a less expensive, high
torque, fail-safe actuator.
Min 133 in-lb torque output
CM line: slim and compact direct coupled,
non-spring return actuators with 18 in-lb
minimum torque.
Running time 150 sec. constant, independent of load
Spring return, 20 sec.
Manual override
■
BELIMO has successfully
focused on the heating,
ventilation and air
conditioning markets for over
30 years. We have been
committed to providing
integrated solutions to all our
customers with the ultimate
objective of forging lasting, and mutually
beneficial business relationships.
Our relationships with our customers, partners,
shareholders and employees are based on trust,
performance, and adding value, with a focus on
sustained prosperity rather than short term gains.
Staying true to our vision, our innovative products
have always been designed to help you achieve
your objectives better, faster and economically.
Investing in new technology has been key to our
success, and Belimo now proudly announces the
following additions to our product line:
5 Year Warranty
The AFA series actuators provide
true spring return operation for
reliable fail-safe application and
positive close-off on air tight
dampers. The spring return
system provides constant torque
to the damper with, and without,
power applied to the actuator.
The AFA series provides 95° of
rotation and is provided with a
graduated position indicator
showing 0 to 95°. The AFA has a unique manual positioning mechanism which allows
the setting of any damper position within its 95° of rotation. The actuator is shipped
at +5° position (5° from full fail-safe) to provide automatic compression against
damper gaskets for tight shutoff. ■
*AFA24-SR US cannot be used for dual mounting or replacement of actuators in tandem.
[ 3]
TFC120-S US: an 18 in-lb spring return
actuator with a fast run time and true
mechanical power spring. This solution
provides a higher quality option on
applications such as fan shutters.
Optimized heat pump applications by using
a PICCV and the LRCX24-3.
New FS series actuators: designed for fire
and smoke applications, meeting the
Uniform Building Code 15 second operation
time requirements, such as the proportional
FSAF24-SR US and FSAF24-BAL US.
Expanded 3-way CCV product range: with
a capacity now up to 83 Cv, the CCV line
continues to provide excellent stability and
control.
With more new product introductions in the
future, Belimo will continue to stand out in the
marketplace and introduce products that help you
succeed. And, at the same time, we continue to
strive for process improvements to keep us
efficient, fast and nimble. We don’t want you to
have to think twice when it comes to meeting
your needs for actuator and valve solutions, but
we’ll never take your business for granted.
Are you confused
about conflicting
information regarding
the effectiveness of
Pressure Independent
(PI) Technology?
Precisely what IS Pressure Independent technology?
PI technology such as that incorporated into Belimo’s Pressure Independent
Characterized Control Valve (PICCV) combines the function of an automatic
balancing valve and control valve into one self-contained unit. The PICCV is
designed to maintain stable flow (and thus temperature differential) through
a coil despite any and all pressure fluctuations that occur in a typical system
with multiple control valves and interactive circuits.
How does PI Technology save money?
PI Technology has been shown to reduce both installation and operational
costs by:
WE’RE NOT SURPRISED.
Evaluating the validity of published
[ 1]
Eliminating the need for a separate balancing valve.
reports on testing, along with data used
[ 2]
Eliminating the labor associated with installing a separate balancing valve.
in promotional materials, can be
[ 3]
Eliminating the need for start-up and routine balancing required in
systems with interactive circuits.
[ 4]
Accurately minimizing flow during low load periods, so less pump
energy is required.
[ 5]
Reducing the size of both pumping equipment and piping due to the
fact that PI valves help minimize overall flow requirement through the
system. Less flow means less friction loss through equipment!
[ 6]
Helping owners realize the full benefit of variable flow pumping systems.
confusing—and quite often misleading.
For those seeking real scientific data
evaluating PI technology, Belimo has
conveniently posted test summaries of
comparative studies on PI technology,
including one by the Iowa Energy
Center onto its website at
www.piccv.com.
Is it true that PI valves cost as much as 5 times more than a
conventional valve?
In the meantime, Belimo has
compiled the following Q&A aimed at
No! Clearly a valve that incorporates self-balancing is going to be more
expensive than a valve that does not, however it is unlikely that you would
encounter such an extreme price difference. In most cases, the savings
achieved by applying PI technology will substantially surpass any initial
materials cost. This includes the savings achieved through the elimination of
a separate balancing valve, additional installation labor, and balancing
labor. Most importantly, the goal of PI technology is to achieve more efficient
performance over the life of the system so operational savings is continuous.
clarifying some existing confusion over
PI technology:
»
The World Standard
In Actuators
What is the significance of Delta T when it comes to evaluating valve
performance?
Dynamic
Pressure
Regulator
PI
For optimum efficiency, control valves should maintain consistent Delta T across
the coil that is at or near design, regardless of pressure fluctuations in the system.
If the design Delta T is 12° but 6° of differential is being achieved, then energy (and
money) is being wasted. This is where PI saves. As independent testing has shown,
PI technology consistently maintains high Delta Ts despite varying conditions.
Proven Characterized
Control Valve
Patented
CCV
[ 4]
PICCV:
OPERATIONAL AND INSTALLATION SAVINGS
ENERGY SAVINGS
How do I know I will save using PI technology?
Similar to an Energy Star product, most of the savings associated with PI
technology is realized in operational payback. However, both installation and
operational savings are frequently achieved.
The most compelling evidence of this comes from a study conducted by Integrated
Energy Concepts Engineering of two high rise residential buildings in Florida.
One building was installed with Belimo CCV valves and standard balancing
valves, while the other was installed with PICCVs. The buildings were identical in
terms of location, climate, size, mechanical design, occupancy, and load pattern.
Identical test procedures were followed in both buildings, taking into account Bin
hours, break horse power, and kWh cost.
Data collected from these test sites indicated the following savings:
»
2 Position Valves
Payback/YR
PICCV over 3-way
PICCV over 2-way
$4,342
$1,882
Modulating Valves
PICCV over 3-way
PICCV over 2-way
$4,342
$998
COST ESTIMATES*
2 Position Valves
3-way CCV
2-way CCV
2-way PICCV
Cooling Heating
Totals
$78,567 $77,272
$51,321 $50,568
$41,871 $41,160
$155,838
$101,889
$83,031
Modulating Valves
I’m confused by what seems to be conflicting reports on the cost
effectiveness of PI technology. How do I separate the facts from
the hype?
3-way CCV
2-way CCV
2-way PICCV
Certainly different tests yield different results depending on the test
procedures. Consistent, side-by-side comparisons are essential for evaluating
the effectiveness of one methodology over another. When presented with
comparative reports on PI versus non-PI technology, make sure:
■
Testing involves interactive circuits which exhibit pressure fluctuations.
After all, these are the systems for which PI Technology was developed.
Tests which only look at valve performance in a non-interactive
environment do not demonstrate the performance values of PI technology,
therefore the data they achieve is misleading.
■
Tests incorporate the operation of multiple valves to demonstrate the effect
of simultaneously varying differential pressures across multiple coils. This
yields results that are more similar to actual systems.
■
Tests employ consistent supply air temperature strategies for both PI and
non-PI systems. PICCV technology can be used for both fixed or varied set
point strategies, and should be compared with systems that employ the
same strategies, otherwise the test will not yield a true comparison.
■
Variables such as humidity, outdoor air requirements, and varying loads
are accounted for within the testing procedure.
$78,567 $77,272
$56,669 $55,877
$46,737 $45,864
$155,838
$112,545
$92,601
*Based on total installation cost.
Where can I find reliable,
scientific data comparing PI
with non-PI Technology?
Two excellent resources are
available on the Belimo website:
[1]
A technical paper
summarizing the test results
of a comparison study
conducted by Integrated
Energy Concepts
Engineering.
www.piccv.com
[2]
An analysis of the Iowa
Energy Centers independent
testing of the PICCV.
www.piccv.com
Do all systems require some sort of balancing?
Virtually any system with multiple, interactive circuits requires start-up and routine
balancing–even those that are considered to be “tightly” designed. There are two
main reasons for this:
FIRST: Mechanical systems are rarely designed to perfection. Most are designed
(or updated) with one or more of the following imperfections: inappropriately sized
coils, oversized pumps, improper piping. All of these items lead to pressure
fluctuations which impact overall performance and efficiency. Therefore balancing
(and re-balancing) is necessary unless PI technology is used.
SECOND: Normal pressure fluctuations in a system WILL occur as a result of
constant load changes due to outdoor air temperatures, humidity, building
occupation, etc. While there has been some investigation into the viability of
pressure dependent systems that do not employ balancing, we do not consider this
a realistic alternative for buildings with multiple, interactive circuits.
[ 5]
Other Questions?
Belimo is happy to answer any technical
questions you may have regarding PI
technology. As a manufacturer of BOTH
PI and non-PI equipment, we realize that
different products are suited for different
applications. Our goal is not to persuade
engineers to use one technology over
another, but to help them select the
control technology that provides the most
cost-effective solution for their clients.
For further questions, contact us any time
at: 877-833-1609.
SHELTER
IN PLACE
by
Larry Felker
PRACTICAL TECHNICAL CONSIDERATIONS
INTRODUCTION: WHY SHELTER IN PLACE
I
Larry Felker is a Product
N THE EVENT of a chemical, biological, or radiological (CBR) release external to
any facility, it may be necessary to shut down some or all of the air handling
systems in the building in order to protect the
occupants. Therefore, protection against the likelihood
Manager for Belimo Americas.
may be prudent and effective.
A not unlikely scenario for a terrorist attack is that
He is a mechanical engineer
one building or small area of a city may immediately
who specializes in actuators and
dampers. Larry is a member of
experience an event, and then downwind buildings and their occupants. The same
strategy applies to events like chemical spills due to train derailment or similar events.
Downwind of any point there are hundreds of buildings in the path that toxins may
ASHRAE since 1978.
travel. Assuming an attack has occurred upwind of a building, the first goad is to
prevent the entry of toxin into the building.
The discussion centers about unhardened commercial buildings, not quasi-military
or government buildings with special protection measures in place. Nor is the concept
of shutting outdoor intakes periodically while airplanes are taking off immediately
adjacent to an airport discussed. Those are more an indoor air quality issue requiring
special sensing, control, and filtering. The term “shelter in place” could also refer to
refuge areas within a building; however that is not the focus. Any CBR event is,
regardless of specific location, most likely an external release at a remote point and not
The goal
within any given building. We are considering the entire building as an entity that
needs to be sealed. There are always individual building considerations like the
of this article is to
provide practical
techniques
that can be readily
adopted.
presence of safe havens within buildings, ability to withstand a continuous vs. one time
release, and similar factors.
The default protection method for the building occupants in the event of an air
released toxin is to shelter in place – shut down completely in order to isolate the toxin.
This is easier said than done since wind, stack effect, and critical systems may still
affect airflow in unpredictable and uncontrollable ways. The control methods are
straightforward, but need to be defined and the various tactics selected for low cost
while producing the desired effects.
Shelter in place requires to close down every low resistant air path into the building
and avoid negative pressures within the building to the degree we are capable. Addressed
in the full article we will consider some pressurization techniques, but they maybe
impossible to implement.
The goal is to provide practical techniques that can readily be adopted by building
owners, facility managers, mechanical design engineers, control and mechanical
contractors. Any procedures adopted for CBR attach must not compromise basic IAQ
environmental considerations nor life safety measures to protect occupants from risk of fire
and the concomitant danger of smoke. Request the full article from Belimo; 203-749-3341
or [email protected] or download at www.belimo.us. ■
[ 6]
T
HE ENTIRE Belimo University program has undergone major development
during the past few months. We have a new team of instructional design and
subject matter experts who have been collaborating to develop (what we hope you will
agree are) top-notch training programs for our customers.
We have approached the design of our training programs using a modular
concept, in that we are developing bite-sized (1 to 2 hour sessions) audience and
subject driven trainings. You can expect to find modules on a specific product or
application as well as more generic modules that explain how to size, wire or install,
sell or specify our product.
Visit us at www.belimouniversity.com to view and download course descriptions
for each of our offerings. Each course description will provide you with everything you
Welcome
to the
Belimo
University
Spot!
need to know to help you make an informed decision about which training session
will best meet your needs.
We have so much news and
We will continue to add course descriptions throughout the year as and when new
so many exciting updates to
programs are developed.
share with you this quarter!
WEBSITE
Our website is also undergoing some redevelopment. We will be launching a brand
Read on to find out what’s
new website later this year; in the meantime, we have given our existing site a facelift! Be sure to check us out on the web to stay up-to-date with the latest on our course
been going on at Belimo-U!
offerings and schedules.
BELIMO 101
In addition to our training modules we have developed a 1-day customer training
program. ‘Belimo 101: An introduction to air damper actuators and control valves’ is
an introductory program for those people who are either new to the HVAC industry, or
who want to learn more about the fundamentals of actuation and control valves.
This highly interactive course provides lots of opportunity for participation and
includes a hands-on wiring lab.
Check out our website to download the Belimo 101 course description and to
enroll in a class! Alternatively, contact your local sales manager to learn more.
LOCATION. LOCATION. LOCATION.
Perhaps the most significant development for Belimo University for this year is that we
will be offering all of our individual training programs at a location near you
throughout North America.
Belimo 101 classes will be available in each of the following regions on a
quarterly basis; US – Northeast, South, Midwest and West; Canada – East and Western
iPod and T-Shirt Giveaway!
Territories; all of which are in addition to offerings at our state-of-the-art training
Details on back
facilities in Danbury, CT and Sparks, NV. ■
[ 7]
»
Alright,
So this wouldn’t be a
training spot without a
test at the end!
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We have 5 Belimo University T-Shirts to give
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away along with an iPOD! To the right is a
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along with your name and address to:
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Belimo, ATTN: Marketing, 43 Old Ridgebury
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Road, Danbury, CT 06810, 203-749-6838 or
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[email protected]. Five names will
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be randomly selected for a free Belimo
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WORDS TO LOOK FOR
AUDIENCE
CUSTOMER
INTERACTIVE
LOCATION
word search containing 10 words discussed
MODULE
PARTICIPATION
in the previous article (pg. 7). Find all
words, mail, fax or email in your puzzle
PRODUCT
TRAINING
UNIVERSITY
WEBSITE
University T-shirt. On December 1, all entries
from all Belimo Direct News puzzles will
have a chance to win an iPOD.
Keep a look out for another game in the
next Belimo Direct News.
Remember to keep an eye on our website for the latest course schedules.
Many thanks to all of our customers for supporting our Belimo University
programs; we look forward to seeing you in class!
J20715 04/07
43 Old Ridgebury Road
Danbury, Connecticut 06810
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SOUTHBURY, CT
PERMIT NO. 51