Langendorf Articles

Langendorf Appointed VMC/Amber Booth Representative

Sun, 24 Jan 2010 07:34:19 GMT

The VMC Group is comprised of four leading global brands that together represent the state of the art in shock, vibration, seismic and noise control.

Vibration Mountings & Controls has delivered innovative vibration isolation products and solutions to the HVAC industry for over 65 years.

Aeroflex International Isolators has provided mission critical products and solutions to leading military, aerospace and defense companies for more than 35 years.

Korfund Dynamics has delivered cutting edge products and solutions to global leaders in the industrial machinery, construction equipment, and power generation industries for over 100 years.

Amber/Booth has provided quality products to the HVAC, defense, transportation and OEM markets for over 60 years. Amber/Booth is a member of the Vibration Isolation and Seismic Control Manufacturers Association (VISCMA, www.viscma.com) and the American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc. (ASHRAE, www.ashrae.org)

We offer one of the most extensive product lines in the industry. Our engineering staff includes leading mechanical and structural engineers with industry-recognized credentials in structural analysis, elastomer development, machine design and system dynamics. We are headquartered in a 70,000 sq. ft. state of the art facility in Bloomingdale, New Jersey.

Stadium Grille - Carbondale

Wed, 09 Dec 2009 21:01:47 GMT

This is a custom Duct Sox job that Aaron Schweiss did with Heartland Mechanical.

Job Date: March ‘09

General Contractor: Fager-McGee GC

Mechanical Contractor: Heartland Mechanical

Engineer: Asaturian-Eaton Engineers – Carbondale, IL

Job Details:

Black Verona Commercial Grade Fabric, 1 row galvanized cable hangers, Stadium Grille silk screen, standard font white color, provides even distribution of air around the entire Ductsox. No drafts or hot/cold spots.

Introducing New From Monoxivent..........

Fri, 06 Nov 2009 14:23:18 GMT

Monoxivent is proud to announce that we are now in the FRP products market. Monoxivent now has fiberglass reinforced plastic underground duct as well as fiberglass reinforced plastic corrosion resistant products.

Additional information can be found at: www.underduct.com and www.corrosioncomposites.com.

Sterling Unit Heaters

Fri, 06 Nov 2009 14:22:45 GMT

Langendorf Supply is pleased to represent Sterling HVAC Products in St. Louis, Peoria and Indianapolis. Additionally, Langendorf has inventory of the Sterling Tubular Gas-Fired Unit Heater model GG in sizes 60,000 BTU through 120,000 BTU and the model TF in sizes 150,000 BTU through 400,000 BTU in their St. Louis warehouse. For additional information you may visit the Sterling website at www.sterlinghvac.com.

Click here to download the Langendorf Sterling Stock List

Click here to download the Sterling Selection Guide

Additionally, we now stock METAL-FAB Type B Gas Venting.

Please ask your salesperson for more details.

Product Selection Software and Design Tools

Mon, 02 Nov 2009 16:50:58 GMT

Please click on the following links to download the latest versions of our manufacturer's software.

Loren Cook Compute-A-Fan® Selection Software

Loren Cook Fan-Drafter® CAD Template Package

Loren Cook Revit® Tools

Titus TEAMS Titus Electronic Air Management System

Titus ProAir Displacement Ventilation Selection Software

Titus ProSelect Chilled Beam Selection Software

Ruskin LEADS Louver Engineering & Architectural Design System

Ruskin ASAP Acoustical Selection & Analysis Program

Ruskin ERV Performance Software

PoweredAire Air Door Energy Payback Analysis

PoweredAire Air Door Selection Program

ECM Motors in Series Flow Fan Powered Terminals

Wed, 28 Oct 2009 11:52:04 GMT

This article discusses several items relating to ECM motors in series flow fan powered terminals and unit ventilators starting with the background of motors and air control to electrically commutated motors, variable speed motors and electrical energy, as well as application features.

Click here to download.

NEMA Enclosure Types

Wed, 28 Oct 2009 11:38:39 GMT

See Article on various NEMA Enclosure Types

Save Energy, Install FlexRight™

Tue, 27 Oct 2009 22:42:41 GMT

ASHRAE Study of Typical Inlet Conditions to Ceiling Diffusers Performance Data

ASHRAE has approved and funded a study of inlet conditons in ceiling diffusers and the effects that ducted inlets have on ceiling diffuser performance data. This study in being conducted at the University of Las Vegas Nevada (UNLV - Nevada) as ASHRAE study RP1335 by Dr. Brian Landberger and Dr. Doug Reynolds. Titus's Senior Chief Engineer, Leon Kloostra, is one of the principal authors for this study.

The majority of manufacturer catalog performance data for diffusers is developed following ASHRAE Standard 70, where an inlet to the duffuser is installed under ideal conditions. This standard requires uniform airflow entering the diffuser adn assumes that no inlet balancing device is in the diffuser inlet. Inlet conditons to the diffusers can greatly affect the diffuser performance, but the magnitude due to these conditions is not known.

You can read this entire article by downloading the file Flexright™

For the product submittal page download FlexRight™ Submittal

Revit Design Tools

Thu, 04 Jun 2009 15:32:07 GMT

Our manufacturers are developing Revit content for your use. Please following these links:

Titus: http://www.titus-hvac.com/software/revit/Revit.asp

Loren Cook: http://www.lorencook.com/About/destools.shtml

Ruskin: http://www.ruskin.com/revit.aspx

Titus Green Seminar for Engineers

Thu, 12 Mar 2009 01:45:08 GMT

Join Titus for an Air Distribution for Green Building& LEED discussion in St. Louis, Missouri of Wednesday May 14th, 2008. The seminar is being held at the Hyatt Regency St. Louis, One Union Station, St. Louis, MO. 63103. Admission is free but you must register in order to secure a seat for the presentation. Registration form can be downloaded by clicking here.

Ruskin Air Flow Measuring Products

Mon, 09 Mar 2009 15:15:51 GMT

...with an AMCA certified, factory commissioned and calibrated RUSKIN Air Measuring Station.
AMCA certification is a voluntary program that requires periodical inspection of the manufacturing process and tests to insure accuracy claims are as stated on product literature. This sustainable feature is common practice among many of Ruskin’s Air Measuring Products. Ruskin’s complete line of IAQ products are designed to meet or exceed the latest code requirements.

See our complete line in the Air Measuring Online Catalog!

RenewAire Energy Recovery Unit Products Overview

Mon, 09 Mar 2009 15:11:55 GMT

For over 35 years RenewAire has been the innovator and leader in energy efficient ventilation. In RenewAire ERV's. stale room air is exhausted and fresh outdoor air is brought back into the building. These two air streams are directed through a highly developed "air-to-air" energy exchange core. The air streams are physically separated by many layers of "plates" so there is no mixing or contamination of the fresh air. The plates are made of an engineered "resin" material that simultaneously transfers heat by conduction and humidity by attracting and "wicking" water vapor from on air stream to the other. This product has less maintenance than an energy wheel since there are no moving parts.

During the Air Conditioning Season

When you need to cool for comfort do you hate the stuffy, musty aire quality in your home? RenewAire ERV's provide necessary fresh air while pre-cooling and pre-dehumidifying this air with energy that would otherwise be lost with the exhaust air. With summertime himidity control (latent energy) being the largest portion of air conditioning cost, RenewAire's humidity transfer is critical. In fact RenewAire is typically three times more energy efficient than products that transfer only heat.

During the Heating Season

Outdoor air is warmed close to room temperature with heat that would otherwise be lost with the exhaust air. The water vapor transfer moderates extremes in humidity levels which helps prevent moisture damage or over-drying of the home. The heat and humidity transfer (sensible and latent) gives RenewAire a big advantage over other air-to-air exchangers typically recovering 30% more energy in winter.

For additional information, product literature, analysis software and guide specifications go to : www.renewaire.com

For product application and assistance contact

Steve Liescheidt, P.E.

Langendorf Supply Adds New Salesperson

Fri, 24 Oct 2008 15:43:03 GMT

Langendorf Supply Co. in Earth City is pleased to announce the addition of Mr. James Cunningham, PE. Mr. Cunningham has over 35 years in the HVAC industry and will be joining Langendorf as an applied equipment salesman and provide additional engineering technical support. Mr. Cunningham's experience in the HVAC industry will provide additional depth to Langendorf's team as the company expands into new applied product markets.

Langendorf Supply Co., Inc. Adds New Salesperson

Fri, 24 Oct 2008 15:39:04 GMT

August 11, 2008

It is my pleasure to introduce Kevin Wingenbach to the position of air distribution sales. Kevin comes to us from the Waites Company where he sold filtration products as well as energy efficient lighting products.

Langendorf Supply Adds New Salesperson

Thu, 29 May 2008 22:53:32 GMT

We are pleased to welcome Paul Prutch to Langendorf Supply as well as to St. Louis. Paul comes to us from Centennial, Colorado. Paul is a graduate of Colorado State University in Pueblo, Colorado.

Wind-Driven Rain Louvers are the Best Defense Against Water

Tue, 29 Apr 2008 21:03:22 GMT

AMCA’s Inmotion magazine supplements highlight important industry issues and key solutions to today’s HVAC problems. In the Spring 2007 issue, Ruskin’s Louver Product Marketing Manager, James Livingston, tackles the issue of louver water penetration head-on with his article titled The Value of Wind Driven Rain Resistant Louvers. The best defense against water penetration inside a building is with the design and use of wind-driven rain (WDR) louvers.

AMCA rewrote test standard 500-L to measure the effectiveness of the louver’s water repulsion system using wind-driven rain louvers. This new test standard was based on successful designs utilized in Europe.

Mr. Livingston presumes the following. “In the last decade, there have been design innovations that enable louvers to provide greater airflow capacity and increased resistance to weather infiltration. One of the most significant improvements in this regard has been the development of wind driven rain resistant louvers. These louvers are highly effective at keeping rain out of buildings, and in many cases have significantly higher airflow capacities than traditional louvers.”

Also in the article, you’ll discover…

The importance of blade design in WDR louvers.
How WDR louvers exceed 1250 fpm performance.
What Class "A" AMCA certification rating means for WDR louvers.
How to reduce your louver opening size dramatically with WDR louvers.

New Product -- HVAC Starters

Thu, 24 Jan 2008 11:41:58 GMT

HVAC Starters that save you TIME and MONEY. Cerus Industrial has developed a starter geared for the HVAC market. Everything you need is standard. Call for details.

Damper Leakage Rates - More Important Than Ever

Tue, 22 Jan 2008 17:48:49 GMT

AMCA’s Inmotion magazine supplements highlight important industry issues and key solutions to today’s HVAC problems. In the Fall 2007 issue, Ruskin Vice President of Sales and Marketing, John Knapp, explains why in his article Damper Leakage Rates - More Important than Ever!

According to Knapp, “All HVAC dampers, i.e., control, backdraft, fire, smoke, and combination fire/smoke, contribute to the overall efficiency of the air system. With the emphasis on “green,” sustainable buildings, IAQ, and energy savings, damper leakage rates are more important than ever. Every CFM counts!”

In this issue of AMCA Inmotion, you’ll also learn:

The two main locations for potential damper leakage and how to design for them.
How damper leakage is a function of pressure, not airflow.
How AMCA’s Certified Ratings Program (CRP) ensures damper performance every time.
About AMCA’s Certified Leakage for Smoke and Combination Fire/Smoke Dampers.

Titus Modulinear™ For Armstrong® Techzone™ Ceilings

Fri, 30 Nov 2007 22:45:37 GMT

Titus is pleased to announce a partnership with Armstrong World Industries Inc., by offering a line of linear diffusers designed specifically for the Armstrong TechZone Ceilings.

The Titus Modulinear TZ series is a high-performance, high-quality slot diffuser. The TZ series is designed to easily integrate into the Armstrong’s TechZone ceiling grid system providing a customized and aesthetically pleasing look with standard components.

Modulinear TZ series diffusers are available in 1, 2, 3 and 4-slot configurations in lengths of 24, 30, 36, 48, 60 and 72 inches. The unique, aerodynamically curved “ice tong” deflector blades allow both changes in air volume and direction from the face of the diffuser. This versatile diffuser is an excellent choice for variable air volume applications.

The Modulinear TZ series is designed to fit standard lay-in, drop face (Tegular) and narrow Tee ceiling grid systems. The ML TZ series is available with a low or high profile plenum as well as a face only option. Matching returns are also available.

When integrated with the Armstrong TechZone Ceiling system, the Modulinear TZ series provides the ultimate in comfort, aesthetics, performance and design flexibility.

For more information: Armstrong TechZone Ceilings

Titus & LEED

Wed, 28 Nov 2007 18:11:25 GMT

The interest in “green” buildings is increasing. Green buildings are buildings that are environmentally responsible, profitable and healthy places to live and work. The U.S. Green Building Council’s Leadership in Energy and Environmental Design standard is becoming the basis for determining a buildings “green” status. More information on the USGBC can be found at www.usgbc.org.

LEED is a voluntary, consensus-based national standard for developing high-performance, sustainable buildings. It has sections to cover all aspects of the building and its construction. The sections of LEED for New Construction are:

Sustainable Sites (SS)
Water Efficiency (WE)
Energy & Atmosphere (EA)
Materials & Resources (MR)
Indoor Environmental Quality (EQ)
Innovation & Design Process (ID)

The HVAC system plays an important role in achieving healthy buildings to work in, but these LEED Credits tend to be underutilized. The sections of LEED that relate to Titus’ air distribution products fall primarily under the Energy & Atmosphere (EA) and Indoor Environmental Quality (EQ) sections of LEED. A chart showing the breakdown of the LEED Credits achieved in order of frequency and how often the HVAC specific credits are achieved can be found on the LEED Credits Achieved section of the website.

The Regional Material and Recycled Content parts of the Materials & Resources (MR) section are applicable to all industries. More information on Titus products that are eligible for LEED credit can be found on the LEED and Green Buildings section of the website in the LEED Application Guide.

Titus offers a wide range of products that ship from factories across the country. By selecting a model that meets your performance needs and is within 500 miles from the project site, you can increase the percentage of regionally supplied products to acheive a LEED Regional Material credit. For an overview of Titus products and plant locations click here.

Do You Know Your IAQ

Mon, 05 Nov 2007 19:14:48 GMT

Volatile organic compounds (VOC) are present in every building in the world. Some people have severe reactions to them while others may only experience dry eyes, scratchy throat or no apparent symptoms at all. A good LEED project reduces the quantity of VOCs that are “potentially irritating and/or harmful to the comfort and well-being of installers and occupants”. While Indoor Environmental Quality (EQ) credit 4 focuses on reducing VOC’s it is impossible to eradicate them completely. Proper ventilation of the interior space is paramount to the sustainability of a healthy indoor air quality that leads to the safety, comfort and well-being of the building occupants. Studies have proven that reduced VOC’s and proper ventilation increase productivity by as much as 16%.

As we are all aware, there is an energy dollar trade for proper ventilation. Bringing in too little or too much ventilation can impact your LEED score. LEED’s Minimum Energy Performance, as well as Measurement and Verification are two of 17 EA points that relate to this important balance in ventilation design. It is interesting to note that an independent laboratory study (Lawrence Berkeley National Labs) revealed that two of Ruskin’s air flow measuring products produced the most accurate airflow measurement when compared to other products commercially available in the market today. With LEED stressing the importance of conserving energy and the requirement for proper ventilation, having the most accurate products for flow verification and sustainability is essential.

When working toward LEED certification, it is good to know that Ruskin model IAQ50 is the most comprehensive, turnkey, indoor air product on the market today. In a space of only eleven inches the air flow is straightened, measured and controlled to a job-specific cfm set point. Every unit sold is placed on an AMCA wind tunnel and calibrated for the exact cfm range required by the application. Right out of the box the IAQ50 will control to the specified low limit without any need for additional controls. For more flexibility, the microprocessor-based controller accepts input from C02 sensors, building automation systems, 0-10 volt power supplies and enthalpy sensors. The controller has night set-back, purge and economizer functionality options to meet the specific application and to contribute toward meeting more LEED points and prerequisites.

For more information on Ruskin's complete line of air measuring products visit http://www.ruskin.com/airmeasuring/.

Ruskin Introduces New Electronic Air Measuring Station (EAMS) – The “Scoop

Mon, 05 Nov 2007 18:12:33 GMT

Ruskin Air & Sound Control recently announced they are expanding their air measuring product line to include an AMCA certified air measuring station for measuring ultra low velocities. The model EAMS(HP) electronic air measuring station, nicknamed the “Scoop”, combines heated mass flow sensor and air scoop technologies to collect and report air measurements within 2% to 3% accuracy. The transmitter range is from 0 to 2,000 feet per minute and the complete assembly can be calibrated and AMCA certified within a range of 40 to 2,000 feet per minute.

The EAMS(HP) air measuring unit comes in a 12” deep frame for easy duct mounting and the pressure manifold system and controls are all contained within the envelope of the assembly. The unit may be installed in climates ranging from 32° to 140° Fahrenheit (ambient). The assembly may be mounted in any orientation, as it is not position sensitive. All control wires terminate in a factory-mounted junction box to simplify the mounting process.

An AMCA certified damper is available to be added to the assembly for airflow control. The product was developed for stand-alone or add-on applications when accurate control of the airflow is a requirement.

Ruskin manufactures a complete line of AMCA certified Air Measuring Products to meet the ASHRAE 62-2001 standard for indoor air quality. To learn more about Ruskin dampers, louvers and sound control products, visit our website at www.ruskin.com.

Engineering Design Tools

Mon, 22 Oct 2007 19:36:06 GMT

Engineering requires calculations. Calculations can be done by hand or with reliable computer software. Product selections can be done by using published data in manufacturers’ literature or can be done by using reliable manufacturer’s product selection software. The software noted below has been developed by some of the HVAC industry’s leading manufacturers in an effort to provide engineers efficient ways to make product selections and to evaluate energy use of the products along with other evaluation analysis processes. You can download the most current version of most of these software tools directly from the manufacturer’s website or you can contact Langendorf Supply Company to obtain a current disk or assistance in downloading these programs. *Design Software Tools For the Engineer's Documentation Of Product Selection Decisions* "Ruskin":http://www.ruskin.com * New Louver Selection Program * Size & Select Louvers * See Relative Cost "Ruskin Sound Control":http://www.ruskinsound.com * Sound Attenuator Selection "Titus":http://www.titus-hvac.com * VAV & Fan Powered Box Selections * Diffuser Selections * Fan Coil Unit Selections * Schedule Builder To Import To AutoCADD Drawings "Cook":http://www.lorencook.com * Fan Selection and Budget Pricing * ERV Selection Software * Fan Law Calculator * Noise Calculator * Psychrometric Analysis Software * Duct Designer * English/Metric Conversion Software * Energy Analysis Payback Software "Powered Aire":http://www.poweredaire.com * Air Door Application Payback Analysis Program

Ruskin Air Measuring Products Overview

Mon, 22 Oct 2007 19:35:24 GMT

Ruskin Air Measuring Products Overview Measurement, Documentation, Control of Supply, Exhaust, Return & Ventilation Air For Additional Information, Product Literature and Guide Specifications Go To: http://www.ruskin.com/ Air Measuring Stations, Control Dampers, Balancing Dampers And Louvers With today’s demanding building and HVAC code requirements, managing and measuring airflow requires much more precision than it did just a few years ago. This improved control leads to better indoor air quality, greater productivity and increased energy efficiency. Managing airflow in today’s HVAC systems requires much more precision than it did a decade ago. Over forty states have now adopted international codes as a guide to promote occupant health and safety by improving methods of measuring and controlling the minimum outside air. Enhanced control leads to better indoor air quality and energy conservation. Ruskin’s complete line of air measuring and IAQ product are designed with the latest code requirements in mind. Newly adopted codes require that all outside air dampers within the building envelope are designed to provide a maximum leakage rate of 3 cfm/ft2 @ 1” water column. Additionally, the dampers must monitor and control the minimum outside air to insure ventilation requirements are is being satisfied. From total monitoring and control of the air to simple measurement of the airflow at various points within the system, Ruskin has a product that has been designed to fit the application. All products are tested in Ruskin’s AMCA certified testing facility. For more details about the codes that have influenced Ruskin’s design read ASHRAE Standard 62 and AMCA 90.1-2001. Visit the International Code Council website at www.iccsafe.org to see if International Codes have been adopted in your state or local area. * For Product Application Assistance Contact * Steve Liescheidt, P.E, CCPR, CCS * E-Mail: stevel@lsco-inc.com

Welcome

Tue, 22 May 2007 19:38:32 GMT

Welcome to the new Langendorf Website!