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Synco HVAC building automation – for enhanced comfort and energy efficiency

HVAC building automation needs vary greatly between individual buildings, depend on factors such as building size, life

cycle, operating times and comfort needs. Synco building automation can be matched to all these requirements: The

standard controllers offer maximum energy efficiency plus reliability and represent a product range of modular design. This

means that Synco enables you to plan a versatile, cost- and energy-efficient HVAC control system and to straightforwardly

install and commission it – with no need for programming. In addition, functions like the energy indicator or the HomeControl

app support the user in monitoring and controlling their HVAC plant, facilitating energy-efficient operation.

Highlights at a glance: 

  Energy savings thanks to intelligent building automation

  Energy efficiency ensured by eu.bac-certified controllers

  Well prepared for any requirement with a comprehensive product range

  Versatility and expandability for future use

  Straightforward operation and quick commissioning

  Optimum control and fast setting options through remote plant access

  Superior support through a reliable partner

  Highest quality and reliability backed by decades of experience and high standards

Building Automation SystemEC-Net

AX™ Web-based Multi-protocol Building Automation and Energy Management Platform

EC-Net AX

’s  building automation system (BAS) multi-protocol, multi-function capabilities provide seamless andintelligent integration of HVAC, Lighting, Access Control, CCTV, Energy Management, and other building systems.

EC-Net AX

 BAS provides the power to do more, with cost-effective and scalable integration of all your control,monitoring, and operational needs. A truly open solution, the platform creates a sustainable foundation that supportsand evolves with your building system’s lifecycle. 

  Program, manage, and monitor your building automation system using a Web browser

  Common platform provides global functions such as network control, monitoring, alarming, database and logmanagement, and audit trails for all building functions

  Monitor, acknowledge, and review alarms with sophisticated alarm processing and routing, including e-mailand paging

  Manage multi-site or campuses with one system  Choose best-of-breed products and prolong the useful life of existing systems by extending their capabilities,

regardless of manufacturer or protocol

  Leverage real-time business intelligence through connectivity with enterprise applications such asaccounting, tenant billing, and energy management and utility monitoring interfaces

  Open standards provide a useful, cost-effective infrastructure for convergence with IT networks

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Sorting out the options in fiber glass duct insulation

Key concepts Fiber glass insulation is used in HVAC systems for temperature, noise,

and condensation control, and energy conservation. Four primary types of products

are duct liner, duct wrap, duct board, and flexible fiber glass ducts.

By David Tomchak

03/01/2000

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Key concepts

Fiber glass insulation is used in HVAC systems for temperature, noise, andcondensation control, and energy conservation.

Four primary types of products are duct liner, duct wrap, duct board, andflexible fiber glass ducts.

Studies show fiber glass insulation does not contribute to microbial growthand has a positive impact on building IAQ.

For more than 40 yr, fiber glass insulation has been used as a component inair duct systems to maintain comfort and indoor environmental quality. HVACfiber glass insulation is specified for four primary reasons:

- Temperature co ntro l  -- Delivering heated or cooled air at a temperaturelevel best suited to building needs

- Acoust ica l cont ro l  -- Absorbing noise generated by air handling equipmentand by air moving through ducts

- Condensat ion contro l  -- Preventing condensation that could damageinsulation and other HVAC system components

- Energy cons ervat ion  -- Reducing HVAC system operating costs andenergy use by lowering heat loss or gain through air duct walls.

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More than 99% of all HVAC insulation products use fiber glass technology.The material remains an optimal choice in terms of safety, cost-effectiveness,and performance.

Types of insulation

There are four basic types of HVAC insulation products: duct liner, which isused in the interior of sheet metal ducts; duct wrap, which is used on theexterior of sheet metal ducts; fiber glass duct board, which is used to fabricateduct; and flexible fiber glass ducts.

1. Duct l iner. Fiber glass duct liner products come as flexible blankets or rigidboards of fiber glass insulation. Either a coating or a fibrous mat may form theairstream surface. Liners are offered in a variety of thickness and densitycombinations from 1/2­2 in. Their tough airstream surface resists

puncturing, tearing, and surface wear during fabrication, installation,operation, and cleaning.

Most duct liners contain an EPA-registered biocide to make them suitable forIAQ-sensitive jobs. Although most liner products are intended for applicationin square and rectangular ductwork, products specifically designed for roundduct are available.

2. Duct w rap. Fiber glass duct wrap is applied to the outside of sheet metalduct. It is a blanket-type thermal insulation composed of glass fibers bonded

together with a thermosetting resin. Duct wrap can be used for both round andrectangular duct. It normally has a vapor-retardant facing of foil scrim kraft(FSK) or vinyl. Unfaced duct wrap insulation is also available when vapor-retardant facing is not required. Rigid board insulation with reinforced FSK orall-service jacket facings (ASJ) are used as exterior insulation on large metalductwork.

3. Duct w rap. Fiber glass ducts are fabricated from 1, 11/2, or 2-in. thickboards. The boards consist of insulation materials made from resin-bondedinorganic glass fibers. The outside surface of the board has a manufacturer-

applied reinforced aluminum/FSK laminate facing that serves as an air barrierand water vapor retardant. Some products are available with mat-faced orcoated airstream surfaces. Many contain a safe, effective EPA-registeredbiocide to protect against the growth of mold and mildew. Surfaces on theseenhanced products can be easily cleaned using industry-approved methods.

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4. Flexible f iber glass du cts  . Flexible fiber glass insulated ducts consist of aspiral-wire-reinforced inner air core wrapped with fiber glass insulation and

 jacketed with a vapor-retardant reinforced foil or plastic film. These ductsprovide an efficient, economical way to connect trunk ducts and roomdiffusers or registers. Flexible fiber glass ducts should be used in restricted

lengths.

Effect of insulation on IAQ

 A number of myths about the safety of fiber glass insulation have arisen overthe years. Most question the impact of the material on a building's indoor airquality (IAQ) levels. It is unquestioned that the presence of water in HVACsystems is what contributes to mold growth. And mold is no more likely togrow on fiber glass than on any other surface in the duct system.

 A study conducted by Duke University backs up this claim. Researchersexamined the role of such environmental factors as temperature, humidity,airflow, operating hours, and presence of liquid in the enhancement ofmicrobial growth in a ventilation system. They consistently found thatmicrobial growth is greatest in wet zones, such as areas close to cooling coils,mixing boxes, and places where cold air mixes with hot, humid air and createscondensation.

Keeping the surface temperature above the dew point can greatly reduce thewet conditions that contribute to microbial growth. Fiber glass insulation can

help control condensation, inhibit mold growth, and positively contribute to abuilding's IAQ.

Some specifiers have suggested that microbes use the binder and glass induct liner as a food source and that microbial infestation can cause duct linerto degrade. A Harvard University School of Public Health study indicatesthis is not  the case. The binders are not a nutrient for mold and do not amplifygrowth.

Others believe that glass fibers erode from the interior surface of fiber glass

duct liner and board and become an irritant to workers. Study results from 25-yr ago are consistent with current research. The World Health Organizationhas declared that fibers do not have an adverse health effect on buildingoccupants. The University of Nevada-Las Vegas also looked into the amountof exposure to occupants from manmade vitreous fibers when fiber glassinsulation was used in air handling systems. That research confirmed thatfiber erosion is not a significant issue.

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Ensuring that an HVAC system continues to provide efficient, quiet airdelivery, occupant comfort, and cost-effectiveness is best ensured withregular system maintenance. High-efficiency filtration is very important, as areregular inspections, adjustments, system balancing, and the draining ofcooling coil trays.

-- Edited by Jeanine Katzel, Senior Editor, 630-320-7142, jkatzel@cahners.com