Correcting Low ∆T in Buildings with District Cooling

    Posted on Tue,Aug 15, 2017 @ 03:39 PM

    Chilled water provided from a utility plant is commonly in a building’s HVAC system in lieu of installing chillers. Lower return water temperatures or low ∆T decreases the efficiency of the entire chilled water system. This condition is known as “Low ∆T Syndrome”. Low ΔT syndrome is the result of the inefficient use of chilled water at the point of consumption. Join our webinar on Wednesday, August 23, 2017 at 1:00PM - 2:00PM EDT. 

    Delta_T_Webinar_600x260_3-1.jpg
    This presentation will provide a review of district chilled water system design and how low ∆T impacts both the chillers and the buildings the chillers are serving. Finally, we will review a study of a building where “Low ∆T Syndrome” was corrected at the point of water to air heat transfer.

    Tags: Belimo News

    Butterfly Valve Assembly Product Update

    Posted on Fri,Jul 14, 2017 @ 09:08 AM

    Belimo is Now Offering HDU & LU Butterfly Valve Assemblies Providing 50 PSI Close-Off Pressure

    Belimo butterfly valve range has expanded to include competitively priced assemblies for applications that require 50 psi close-off pressure. These assemblies are identified by the last digit “U” in the valve body nomenclature.

    Belimo_HDU_L_Series_Butterfly.jpg
    • 3” to 6” sizes feature HDU bodies for 2-way and 3-way configurations motorized with non-spring return standard actuator series GR, GM, and DR.
    • 8” and 10” sizes feature LU bodies for 2-way configurations motorized with non-spring return PR series actuators.

    The HDU and LU series offers a unique seat, and disc design ensures positive valve sealing while maintaining low seating torque. The cartridge style seat incorporates an elastomer bonded to a phenolic stabilizing ring, eliminating elastomer movement and reducing seat tearing or fatiguing due to bunching. The HDU and LU series provides economical HVAC solutions up to 50 psi close-off.

    Products are available online at www.belimo.us.

    Tags: Belimo News

    Helping Mushrooms Grow More Efficiently

    Posted on Tue,Jun 27, 2017 @ 09:00 AM

    In the production plant of Kuhn Champignons AG, seven to eight tons of mushrooms produced daily. To accelerate the growth, an artificial "autumn climate" is created. Under the ideal temperature and humidity, the mushrooms grow, ripen and become ready for harvest within three weeks.

    But after 30 years, the existing plant and hydraulics were obsolete and no longer met the current standards of sustainable production. The entire plant needed updating.

    mushroom_factory-1.jpg

    After 30 years, the existing plant and hydraulics were obsolete and no longer met the current standards of sustainable production. The entire plant needed updating. Energy saving was the main objective for the new production plant. Additional requirements were constant temperature and humidity in the production for the optimal growth of mushrooms and the ability to switch to variable amounts of water to be able to react according to the season and demand. Reliable and innovative products that contribute to energy saving.

    The advanced butterfly valve assembly fulfills the task of dissipating the heat within the plant, which means the warm water will be pumped into the ground water for cooling again. This is a daily occurrence. The butterfly valve assembly was easy to install because of its lower height and reduced weight.  The advantage of the hand crank if the need arises to switch the system to manual operation. The biggest benefit is 80% energy savings.  The advanced butterfly also guaranteed reliable operation through intelligent self-adjusting valve design Near Field Communication(NFC) along with BACnet communication provide superior application data access for easy troubleshooting, commissioning, and programming.

    The innovative advanced butterfly valve was installed in the new plant of Kuhn Champignon AG in March 2016 and has been running flawlessly. The advanced butterfly valve is the most intelligent, energy efficient, and reliable high flow solution in the HVAC market. With a focus on ease of installation, application flexibility, and longevity, this series set new performance standards.

    Belimo-Advanced-Butterfly-Valve-Assembly.jpg

    Tags: Featured Case Studies

    Innovations for the HVAC Market

    Posted on Wed,Apr 19, 2017 @ 10:44 PM

    At Belimo, we are excited to release new technology innovations for the HVAC market that will increase energy efficiency and reduce installation cost.

    Seamlessly intergrated
    The new sensor range from Belimosensor_home2_banner.jpg

    The new sensors are the perfect complement to Belimo actuators and valves, optimizing energy efficiency and system performance.

    The new sensor offering is the result of over four decades of experience, research, and focus on providing value-added technologies that help reduce expenses and installation. Belimo sensors seamlessly integrate into major building automation systems  with the same quality, reliability, and value that define Belimo. Belimo’s expertise and ability to innovate are evident with the universal compact enclosure design, intuitive screwless snap cover, and detachable mounting plate making installation and commissioning easy.

    With a focus on quality, the Belimo sensors carry a five-year warranty, conform to NEMA 4X and IP65 requirements and are UL compliant. The Belimo sensor offering includes single and multi-range: temperature, humidity, pressure, CO2, and VOC (volatile organic compounds) sensors for pipe, duct, and outdoor applications.

    Discover all the advantages online.


    Belimo Energy Valve™ Now Solves Low Delta T Leveraging IoTbelimo_energy_valve.jpg

    The new Energy Valve is now an IoT device utilizing advanced cloud-based analytics to leverage captured system data to the full potential providing savings and the most efficient operation. The Energy Valve is a pressure independent valve, which measures and manages coil energy by using an embedded electronic flow meter, along with supply and return water temperature sensors. One valve with so many benefits:

    • Patented Power Control and Delta T Manager logic built-in monitor coil performance and optimize the available energy of the coil by maintaining the Delta T
    • Glycol monitoring an exclusive feature ensuring glycol content meets design needs to provide optimum efficiency and safe operation.
    • Cloud analytics provide recommended Delta T and flow set points which can be updated remotely. Accessing and analyzing data reduces field labor and delivers better system efficiency.
    • Dynamic coil performance illustrates the operation of the coil in real time accurately providing transparency of power degradation and other operational issues.
    • Most expansive communication platform on the market including Cloud, BACnet MSTP and BACnet IP, Modbus, RTU and TCP/, Belimo MP-Bus, and one analog feedback signal for valve flow, power, temperature or position providing expanded system integration and BMS control.

    The Energy Valve is ideal for water-side control of heating and cooling systems for AHUs and any water coil (equal percentage: heating/cooling application) with programmable maximum flow settings from 1.65 - 713 GPM in valve body size ½” to 6”.

    Discover the advantages online.


    Advanced Butterfly Valvebelimo_advanced_butterfly.png

    A new release of the advanced butterfly valve with PKR electronic fail-safe actuator offering enhanced control. The durable electronics, simple configuration software, BACnet communication, and dependable super capacitor technology is the most economical and effective solution for critical applications. Replacement of legacy pneumatic actuators is straightforward, eliminating problematic battery back-up modules or expensive industrial actuators. The newly designed butterfly valve and actuator assembly are the most intelligent, energy efficient, and reliable high flow solution in the HVAC market. With a focus on ease of installation, application flexibility, and longevity, this series sets new performance standards in the HVAC market.

    • Saves energy with up to 80% less power consumption than currently available solutions
    • Self-adjusting algorithm that assures zero leakage and improves system performance
    • Application flexibility with a fail-safe function and universal power supply input from 24 to 240 VAC(24  to 125VDC)
    • Easy troubleshooting with its unique position indicator viewable from long distances and any angle
    • Simplified setup, diagnostics and superior application data access with BACnet and Near Field Communication (NFC) built-in

    The advanced butterfly valve with the new PKR electronic fail-safe actuator completes the product range offering.

    Discover all the advantages online.

    Tags: Product Updates

    Belimo Energy Valve™ is Now Solving Low Delta T Leveraging IoT

    Posted on Tue,Apr 11, 2017 @ 03:03 PM

    Belimo Americas is excited to announce the release of the new Energy Valve that is now an IoT device utilizing advanced cloud-based analytics to leverage captured system data to the full potential providing savings and the most efficient operation. The Energy Valve is a pressure independent valve, which measures and manages coil energy by using an embedded electronic flow meter, along with supply and return water temperature sensors. It is ideal for water-side control of heating and cooling coils with programmable maximum flow settings from 1.65 - 713 GPM in valve body size ½” to 6”. Some of the key features include:

    • Patented Power Control and Delta T Manager logic built-in, monitor coil performance and optimize the belimo_energy_valve.jpgavailable energy of the coil by maintaining the Delta T.
    • Glycol monitoring an exclusive feature ensures glycol content meets design needs to provide optimum efficiency and safe operation.
    • Cloud analytics provide recommended Delta T and flow setpoints which can be updated remotely
    • Dynamic coil performance illustrates the operation of the coil in real time accurately providing transparency of power degradation and other operational issues.
    • Most expansive communication platform on the market includes Cloud, BACnet MSTP and BACnet IP, Modbus, RTU and TCP/IP, Belimo MP-Bus, and one analog feedback signal for valve flow, power, temperature or position.

    Join us on Wednesday, April 19th at 1:00 PM EDT, Register Now

    In this 30 minute webinar you will learn about the new Energy Valve that is now an IoT device utilizing advanced cloud-based analytics to leverage captured system data to provide savings and the most efficient operation. The Energy Valve is a pressure independent valve that measures and manages coil energy by using an embedded electronic flow meter and supply and return water temperature sensors. New features include glycol monitoring, a suite of cloud services, enhanced web interface, dynamic coil performance, and the most expansive communication platform on the market today. Register today.

    Download Product Brochure

     

    Tags: Pressure Independent Valves, Green Building Technology

    Seamlessly Integrated, the New Sensor Range from Belimo

    Posted on Mon,Apr 03, 2017 @ 02:48 PM

    Belimo is excited to announce the launch of a full range of HVAC sensors. The new sensors are the perfect complement to Belimo actuators and valves, optimizing energy efficiency and system performance.

    The new sensor offering is the result of over four decades of experience, re
    search, and focus on providing value-added technologies that help reduce expenses and installation. Belimo sensors seamlessly integrate into major building automation systems (BAS) with the same quality, reliability and value that define Belimo. Belimo’s expertise and ability to innovate are evident with the universal compact enclosure design, intuitive screwless snap cover, and detachable mounting plate making installation and comdavid_alliband.pngmissioning easy.

    With a focus on quality, the Belimo sensors carry a five-year warranty, conform to NEMA 4X and IP65 requirements and are UL compliant. The Belimo sensor offerings include single and multi-range: temperature, humidity, pressure, CO2, and VOC (volatile organic compounds) sensors for pipe and duct applications.

     “Belimo sensors not only deliver reliable and accurate readings,” states David Alliband, Sensors Product Manager, “ the sensor enclosure design also features a modular conduit fitting and a spring loaded removable terminal block that installers and technicians will love.”

    Discover all the advantages of the Belimo sensors range at www.belimo.us


    Learn today – Join our live webinar on Wednesday, April 5th at 1:00 PM EDT. A 15 minute Q&A session will follow.


    > Product Range Brochure
    > Shop Online

    Tags: Product Updates

    Belimo Energy Valve™:  Making Systems Energy Efficient, Easier to Control and More Transparent

    Posted on Tue,Feb 21, 2017 @ 11:15 AM

    The Belimo Energy Valve is an advanced pressure independent control valve that can drastically reduce the amount of water used to cool or heat a space.  By increasing the overall efficiency of the heat transfer, energy savings can be achieved.  In addition, the Belimo Energy Valve provides unparalleled transparency to the system and can drastically improve the controllability of complex hydronic systems.

    Join us for this webinar to understand the practical science behind the improved performance and the potential gains that can be realized in your buildings. The webinar will cover:

    Why Hydronic Design Models Don’t Match Building Performance

    Modelling softwares make a few faulty assumptions about basic hydronic behavior which can lead to disappointing building performance.  By selecting and installing proper equipment, engineers and contractors can be successful in achieving the modelled results.

    Understanding and Improving Heat Transfer at the Coil

    By understanding the thermodynamics behind the heat transfer at coils and heat-exchangers, we can devise better control strategies to better match the water flows to the specific loads in the space.  When done properly, most buildings can use far less water to heat and cool, and thus save large amounts pumping and plant energy.

    Static vs. Dynamic Balancing

    Until examined closely, the true benefits of advanced control valve technology, may be overlooked from a control and comfort standpoint.  By exploring dynamically balanced systems, we can see how we can hope to have more stable loops and more comfortable spaces.

    Belimo Energy Valve

    The Belimo Energy Valve is an electronically pressure independent valve with a fully integrated BTU meter.  It has the ability to control flow, manage Delta T, monitor system glycol percentage and fully expose the performance of the equipment.  With advanced communication platforms, which include BACnet, MODbus, IP and cloud based optimization, the Belimo Energy Valve provides unparalleled access to all of the data.

    Case Study Review

    See results from actual Belimo Energy Valve installations.

    Register Now!

    HPAC_Belimo_Header_700x250.jpg

    Tags: Online Learning Resources & Tools, Green Building Technology, Belimo News, Free Items, Technical Tips

    New Advanced Butterfly Valve Technology for HVAC Applications

    Posted on Mon,Nov 14, 2016 @ 09:00 AM
    Butterfly valves are fundamental components in hydronic systems. Unfortunately, most butterfly valves are less than ideal – they leak, their running times are not optimized for HVAC applications, they’re heavy, it’s hard to access wiring, and they cannot be put into operation quickly.

    The new Belimo technologically advanced butterfly valve is the exception. Belimo Americas releases a technologically advanced butterfly valve designed specifically for the Heating, Ventilation, and Air Conditioning industry. The newly designed butterfly valve and actuator assembly is the most intelligent, energy efficient, and reliable high flow solution in the HVAC market. With a focus on ease of installation, application flexibility, and longevity, this series sets new performance standards.AdvancedButterflyValve.jpg

    • Saves energy with up to 80% less power consumption than currently available solutions
    • Patent pending, self-adjusting end stop logic ensures zero leakage at 200 psi close-off.
    • Industry leading fail-safe function and universal power supply input 24-240 VAC / 24-125 VDC requires only one actuator type which eases planning and increases flexibility for all applications
    • Easy troubleshooting with its unique position indicator viewable from long distances and any angle
    • Simplified setup, diagnostics and superior application data accesswith BACnet and Near Field Communication built-in

    “The Belimo advanced butterfly valve offering is truly innovative”, states Kurt Narus, Product Manager. “Our customers will now have a butterfly valve with a fail-safe option, universal power supply, and secure close-off for the life of the valve – all industry firsts!”

    The resilient seated butterfly valves are designed to meet the needs of HVAC and commercial applications requiring zero leakage. The large Cv values provide an economical control valve solution for larger flow applications used in ANSI flanged piping systems. Typical applications include chiller and boiler isolation, primary bypass flow control, cooling tower isolation, large air handler coil control, and process control heat exchanger applications.


    The most intelligent butterfly valve on the market, learn more online, download product flyer or butterfly valve product guide and price list.

    Tags: Product Review, Belimo News

    Cast Your 2016 ControlTrends Nomination

    Posted on Wed,Nov 02, 2016 @ 01:15 PM

    Control Trends has official opened the 2016 Control Trends nomination. Control Trends is an online CTA.jpgorganization that provides HVAC and Industrial Controls professionals a place to learn and share information about the rapidly changing world of the commercial and industrial controls. With product demonstrations and training videos along with news and special posts that affect the controls professional. Control Trends operates independently and are committed to providing HVAC professional, useful information.

    Every year the following Control Trends Awards are granted:

    • Building Automation VAV Controller of the Year Manufacturer or Product
      Variable Air Volume Controller with or without direct coupled actuator
    • Building Automation Plant/Equipment Controller of the Year
      Building Automation General Purpose Programmable Controller
    • Energy Savings Solution Product of the Year
      Software or Hardware Solution
    • Peripheral Product of the Year
      Products such as Sensors, Transducers, Smart Relays, or innovative tools that save time.
    • Wireless Product/Solution of the Year
      Wireless Products/Solutions that Integrate BMS/BAS Systems
    • Lighting Integration Provider/Solution of the Year
      Seamlessly Integrates Lighting System to BMS/BAS Systems
    • 3rd Party Visualization Software of the Year
      Links BMS/BAS System's Information to Visualization Platform
    • Building Analytics Solution of the Year
      Open/Agnostic Solution that Focuses on Data Analytics and Building Optimization
    • Light Commercial Solution of the Year
      Web-enabled or Networkable
    • Innovative Product of the Year
      Game-changing Product or Solution
    • Building Automation Control System of the Year
      Vendor Provides End-to-End Hardware and Software Components
    • VFD Manufacturer/Product of the Year
    • Best Technical Support Person -- Large Manufacturer
      Company sales over $50 million
    • Best Technical Support Person -- Small Manufacturer
      Company Sales Under $50 Million
    • Best Technical Support Company -- Large Manufacturer
      Company sales over $50 million
    • Best Technical Support Company -- Small Manufacturer
    • PID Award
      Person of the Year: Professionalism, Integrity, and Dedication Award
    • ControlTrends Executive of the Year -- Small Manufacturer
    • ControlTrends Executive of the Year -- Large Manufacturer
    • ControlTrends Vendor of the Year -- Large Manufacturer
      Sales over $50 million
    • ControlTrends Vendor of Year -- Small Manufacturer
    • ControlTrends Systems Integrator of the Year
      Systems Integrators, you can nominate up to three. Please note last year’s winners AI and Hepta Systems are not eligible for this year’s awards.
    • ControlTrends Women of the Year
    • ControlTrends Most Impactful Video of the Year

    Cast your nominations online now!

     

    Tags: Product Review, Belimo News

    Energy Cost Savings Can Be Achieved Through Better Compliance

    Posted on Thu,Oct 20, 2016 @ 09:15 AM

    A recent Department of Energy study1 conducted by Pacific Northwest National Laboratory (PNNL) investigated the lost energy savings in small commercial buildings that were not in compliance with the current energy code, in this case, IECC 2012. In energy codes, air economizers are required on most commercial air systems, whether packaged or split system. However, just having an economizer damper and associated control doesn’t result in automatic compliance. There are many subset requirements for economizers today (economizer requirements for details).Capture2.png

    Although this DOE study focused oncompliance verification, it identified a common problem, 100% of economizer controls reviewed had their high-limit shutoff not in agreement with the setpoints as prescribed by the IECC for climate zone 4C. This is not a new problem. The California Energy Commission in 2003 identified that 72% of the economizers investigated had improper high-limit shutoff settings. What’s new, PNNL was able to use the US DOE commercial prototype building model to determine energy effectiveness of specific code requirements and lost energy savings for this incorrect setting. Calculations showed that the wrong high limit setting would result in additional electrical usage of $3.56 / ton per year to as much as$14.18 / ton per year. Also highlighted in the report was the difficulty in verifying if the control was set to the correct high-limit shutoff in accordance with energy codes. It was noted that systems often found in small to medium-sized commercial buildings, didn’t meet the size requirements of the IECC to trigger mandatory commissioning. The verifier was well experienced in economizer controls, but still had challenges identifying setting and operation of the installed controls. In this study, thirty minutes of time was attributed to verifying the economizer control setup.

    Download the complete study, An Approach to Assessing Potential Energy Cost Savings from Increased Energy Code Compliance in Commercial Buildings” by Michael Rosenberg, Reid Hart, Rahul Athalye, & Jian Zhang, Pacific Northwest National Laboratory, David Cohan, United States Department of Energy. This paper presents the results and many lessons learned on how to increase ourbuilding performance.

    EnergyCode_Economizer.jpg

    In summary, improper setup of an economizer leads to lost savings, and verification to validate the settings is an additional cost. With the ZIP Economizer by BELIMO, just enter the ZIP code of the building, and the economizer will automatically set the high-limit shutoff values as required in the latest energy codes.You can visually verify the climate zone and the high-limit value set by the ZIP code. (see how easy it is)

    The ZIP Economizer is also equipped with other energy saving and system projection features and meets all the latest economizer control code requirements.

    Latest Code Economizer Requirements

    • 100% Outside Air – Economizers shall modulate and have the capability to provide up to 100% of supply air with outdoor air when needed to meet the cooling load.
    • Pressure Relief – Means of relieving the additional outside air shall be provided to prevent building over-pressurization. Typically provided by a barometric damper or powered exhaust.
    • Integrated Cooling – which is to provide mechanical cooling with Free Cooling with the damper remaining at 100% outdoor air position and requires a 2 stage thermostat to comply.
    • Class 1 Motorized Dampers – Dampers shall have leakage no greater than 4cfm/ft2 in accordance with AMCA 500D and tested and labeled by an approved agency.
    • Economizer Fault Detection and Diagnostics (FDD) – requiring an advanced digital economizer control providing system information, status, and fault notification.

    Citations:

    An Approach to Assessing Potential Energy Cost Savings from Increased Energy Code Compliance in Commercial Buildings - PNNL- 24979

    Small HVAC Problems and Potential Savings Reports

    International Code Council

    Tags: Technical Tips