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Sustainable HVAC Solutions

Fabric Duct used for Data Centre Cooling

Fabric Duct Data Centre CoolingCooling build-outs can be one of the highest operational costs facing data storage facilities. However, executives at San Diego-based redIT says it has implemented a new cost saving measure at its data centres. The new procedure involves adding fabric duct cooling drops for individual partitions inexpensively, and only as new customers come onboard.

To ensure redundant capacity, data centre construction requires a complete and expensive build-out of a space’s HVAC system, including ductwork and diffusers. Because it may take years to lease out the entire space, this upfront cooling build-out can be a costly practice. redIT officials have found a short-term, more cost-effective
alternative by installing each sheet metal drop and diffuser only after a customer comes onboard. This approach postpones construction costs while saving data centres time and resources.

That said, this phased sheet metal construction approach also has disadvantages. Sheetmetal construction creates airborne particulates and poses other unnecessary risks to neighbouring computer equipment. It also costs thousands of dollars in installation labor and material associated with each new cooling drop. Additionally, outsourced sheet metal contractors in highly restricted access control areas can potentially jeopardize security efforts.

redIT, operating multi-tenant facilities with many Fortune 500 clients, realized these challenges. Furthermore, the firm wasn’t satisfied with the prices, performance, or flexibility of conventional CRAC air distribution systems. redIT used this cost-saving phased cooling approach during the build-out of the first 14,800-sq-ft data centre phase of its 88,000-sqft facility in San Diego. The HVAC service contractor, Countywide Mechanical Systems, introduced fabric ductwork to redIT’s design team.

For additional information please contact your nearest ecoHVAC representative, visit www.ecohvac.com.au/fabric-duct.htm.


Fabric Duct Installed at Harvey Norman Noarlunga, SA.

ecoHVAC Pty Ltd supplies DuctSox Fabric Duct to Harvey Norman, Noarlung, SA.

Recently completed project using DuctSox Verona Fabric with SkeleCore FTS Suspension System.

Harvey Norman NoarlungaSkeleCore FTS (Fabric Tensioning System) stands alone as the only textile ducting/diffuser system that provides cylindrical tensioning to keep the fabric round and taut at all times. Maintains the same appearance with or without any air pressure in the duct and is ideal when higher aesthetic value is desired, when cycling is frequent, or when systems are designed with variable air volume. SkeleCore FTS eliminates disruptive tendencies such as motion and noise upon AHU start-up, especially in hard start applications. It features a unique metal-to-metal Direct Hang Cable method which is the SAFEST suspension in textile ducting. Fabric longevity is extended by minimizing system movement at fabric seams, attachment points, and fittings.

Verona fabric is an all-purpose woven permeable fabric that offers best-in-class performance and features.

Features of Fabric Duct at installed at Harvey Norman include:
• Finished Seam Construction
• Positive Inlet Anchoring System
• Zippered Inlet Collar
• Color Options (Black, Silver, White, Tan, Green, Blue, Red, Custom)

For more information please visit www.ecohvac.com.au.


Fabric Ducting FAQ “Frequently Asked Questions”

DuctSox have prepared the following FAQ “Frequently Asked Questions” for their Textile Air Dispersion products. The document is to aide you in your understanding of DuctSox and their products. It is a comprehensive listing that includes 50 of the most commonly asked questions and answers.

Example of Fabric Ducting “Frequently Asked Questions”:fabric ducting frequently asked questions

Who is DuctSox? DuctSox is a USA owned and operated company based in Peosta, Iowa, with factory-trained distributors located throughout the world. We are a division of Rite-Hite Corporation, Milwaukee, Wisconsin.

What is a DuctSox Textile Air Dispersion System? DuctSox are an attractive and cost effective replacement for exposed metal HVAC ductwork and diffusers. Constructed of fabric, systems are available in round, half-round, quarter-round or surface-mount shapes for horizontal or vertical orientations. They are available in a large variety of fabrics and options, ranging from antimicrobial treated fabrics to the SkeleCore Internal Fabric Tensioning System.

How is a DuctSox System different than a traditional metal duct system? Different than conventional metal, fabric products are engineered and manufactured for each project. DuctSox designs can be simple straight systems or very intricate layouts; incorporating fittings such as radius elbows, Ts, transitions, or any combination. Sections are zippered together to form extended lengths.

What is the number one advantage a DuctSox Textile Air Dispersion System has versus a traditional metal duct system? Better air dispersion. Because the air is distributed along the entire length of duct, a DuctSox System evenly disperses the air, eliminating hot and cold spots in the space.

For a copy of the Fabric Duct Frequently Asked Questions please visit our fabric ducting page.


Fabric Duct Installed in Retail Store

Fabric Duct Installed in Fishing & Outdoor Retail StoreDuctSox Verona fabric duct was recently installed in a Fishing & Outdoor Retail Store, located North of Brisbane.

Five straight runs of DuctSox Verona fabric duct were required, each with a 2-Row tension cable suspension system. Each run has an airflow of 3,900 l/s and a mounting height of 5.2m. The system was custom designed using DuctSox L-Vents to delivery a Comfort Flow across the retail floor.

Using Verona fabric, the client has a manufacturer’s guarantee, that condensation will never form on the fabric duct.

For design assistance on DuctSox products, please contact your nearest ecoHVAC representative or visit www.ecohvac.com.au.


New Fabric Duct Design Manual

Fabric Duct Design Manual by DuctSoxDuctSox design manual

DuctSox have recently announced the release of their new fabric duct DuctSox Engineering and Design Manual. The revised manual follows the new methodology of designing a DuctSox System, beginning with selecting the Shape and Suspension/Retention system first. The manual also incorporates some of the newer DuctSox products and features, including SkeleCore and Nozzles.

This design manual should assist through the design process for all DuctSox® Fabric Duct Ventilation Systems. The process involves considerations that include layout, sizing, air dispersion, appearance, durability and installation.

The five steps of DuctSox system design:
• Series / Shape select shape for the application – Cylindrical or Surface Mount.
• Design Layout determine duct layout and sizing – selecting DuctSox location, diameter, lengths and required fittings.
• Fabric select fabric based on product quality, porosity, colors and/or required air dispersion type.
• Air Dispersion determine type, location and size of vents for Comfort Flow, orifices for High Throw or calculate required porosity for Low-Throw Series using to supplied airflow and static pressure.
• Suspension select Tension Cable, Suspended H-Track or Flush Mount Track for suspension.

There is some general information included on Critical Environments and Underfloor Air Distribution. For design assistance on these products, please contact your nearest ecoHVAC representative. For more information on DuctSox Fabric Duct visit www.ecohvac.com.au.


Launch of New ecoHVAC Website

ecoHVAC Launches New Websiteecohvac launches new website

ecoHVAC is excited to announce the launch of our new website, which has been completely redesigned from the ground up.

ecoHVAC Pty Ltd has been supplying quality commercial and industrial HVAC (Heating, Ventilation & Air Conditioning) equipment into the Australian and New Zealand market for over 40 years. We can provide you with a wide range of energy efficient products to suit your requirements.

Our product range includes: Air Grilles (VAV Diffusers), Fabric Duct, Gas Fired Boilers, Condensing Boilers, Chilled Beams, Constant Airflow Regulators, Expansion Tanks, Radiators, Plate Heat Exchangers, Air Pressure Stabilisers, Dehumidification, Humidification, Condensate Pumps & Mag Gauges.

ecoHVAC Pty Ltd (formerly Automatic Control Company Pty Ltd) commenced trading in October 1972 and has operated very successfully for over 40 years as an importer/ manufacturer’s representative. It has expanded to include a number of sought after franchises and in most cases operates as an importer and wholesaler of HVAC equipment thus creating exclusive Australian agencies. Local equipment is also represented where Australian manufacturers can demonstrate efficiencies in production, however, these products may be restricted to physical sales boundaries.

In 2009 it was decided that Automatic Control Company Pty Ltd required a new trading name to better reflect our market position. Therefore, at the commencement of 2010, our new trading name ecoHVAC Products was launched. For simplification, in 2013 it was decided that the company name be changed to ecoHVAC Pty Ltd. The new name encompasses the aspects of a supplier of environmentally friendly products within the HVAC (heating, ventilation and air conditioning) industry.

Please take a minute and visit www.ecohvac.com.au.

Restaurant Solves Challenges with KitchenSox

Mrs. Doubtfire Restaurant Solves Cooking Hood Draft Challenges with KitchenSox.

The Issues:
• Performance challenges from kitchen ventilation system.
• Smoke and food odors wafted into portions of the dining area raising complaints from patrons seated at tables near the kitchen.
• Drafts from the existing make-up air HVAC system were drawing smoke and grease and depositing them onto the diffuser, walls, ceilings, and other kitchen surfaces requiring annual maintenance costs.
• Drafts from the air conditioning supply over the food prep area was prematurely cooling prepared hot entrees and employees in other kitchen areas were uncomfortably hot.

The Solution:

DuctSox KitchenSoxDuctSox recommended a custom KitchenSox system to disperse the airflow uniformly, parallel and in front of the kitchen exhaust hood. The metal diffusers were replaced with two eight-foot-long (2.44m), 28-inch-diameter (711mm) D-shaped KitchenSox fabric diffusers. Instead of the metal diffuser’s estimated 500-fpm (2.54m/s) airflow that caused turbulence and disruption of the cooking hood’s capture, the air is gently and evenly dispersed through the fabric into the entire kitchen area at a significantly slower 85-fpm (0.43m/s) rate. Without the previous high velocity airflow and subsequent turbulence, the dual exhaust cooking hood now efficiently performs up to its design standards and captures smoke, grease particulates and cooking odors without overflow.

The End Result:

A happy customer. Chef Kevin Gin couldn’t be happier. “This is really a common problem (inadequate cooking hood drafting) I think many restaurants suffer from and don’t realize there’s a simple, inexpensive solution,” said Gin. “We once thought replacing the HVAC system would improve our kitchen ventilation challenges, but we now realize it probably wouldn’t have remedied what was actually a ventilation problem that fabric ductwork solved.”

For the formatted case study, go to www.ductsox.com.

If you know of any kitchen applications that may be experiencing problems, please do not hesitate to let us know.
We are more than happy to recommend a simple and flexible solution, please contact your nearest ecoHVAC representative or visit www.ecohvac.com.au.


SkeleCore – For Return Air Applications

Cylindrical Return Air Fabric Duct:
• Utilizes SkeleCore fabric tensioning/internal framework system
• Keeps textile duct round and taut at all times
• Air is returned through orifices placed along the length of the fabric
• Diameters from 200mm (8”) to 1524mm (60”) in increments of 50mm (2”)
• Vertical hanging system eliminates need for horizontal suspension
• 1 year warranty

Design Parameters:
• Velocity = 5.08 m/s (1000 FPM)
• Inlet Static Pressure = -30 Pa (-0.125 ESP)
• Maximum Diameter = 152cm (60 inches)

DuctSox Skelecore