How often should I replace residential lamps?

1-year Replacement: Residential UVC lamps should be replaced every 9000 hours or approximately every 12 months. For people with respiratory conditions or other acute sensitivities, we strongly recommend keeping to an annual lamp replacement schedule.

2-year Replacement: If your UVC lamp is strictly used for keeping coils clean on your HVAC unit, you can save money and the environment when you use your lamps for their maximum two-year life span. UV lamps should then be exchanged after a maximum two year installation period.

UV lamps running beyond three years may contribute to excessive power consumption of the ballast which can cause overheating of the power supply and lamp, further deteriorating the effectiveness of the product and/or cause system failure. If the UV lamps are not to be replaced within a three year period, turn off or otherwise disconnect power from the system until new lamps can be installed.

Ultraviolet lamps are comprised of two electrode filaments (the spring looking wire at each end), a glass and quartz combination vacuum tube, several inert gases and approximately 3 mg of mercury (Hg).

These specialty lamps are designed to provide light energy in the germicidal spectrum of 254 nm (nanometer = one billionth of a meter). As they operate, they slowly loose their germicidal effectiveness, about 15% per year. If the UV system is installed for the sole purpose of protecting HVAC equipment such as coils and blowerssurfaces that stay consistently in the range of the UV lamps, then the UV lamps will be effective for about 18,000 hours or two years.

If the primary operation of the UV system is to aid in the reduction of indoor air contamination, then the recommended lamp replacement interval should be one year. This will ensure needed higher energy levels are maintained to aid in the reduction of moving (airborne) microorganisms circulating through the HVAC system.

UV lamps should then be exchanged after a maximum two year installation period for several reasons, including:

The disinfection effectiveness will be significantly compromised and the system will not be able to generate UV-C light as specified. Note that even though a visible blue glow can seen though the system viewport, the glow is not UV light (which is invisible) but actually a by-product of the operation.

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Ultravation - Replacement Filters and Lamps

Zoneaire Replacement PTAC Units

Zoneaire was a division of Inter City Products (now International Comfort Products) until 1994, when it was sold off to Friedrich. Zoneaire manufactured three PTAC models in the USA and one in Canada. There were hundreds of thousands of these units sold under several brand names. Applied Comfort in Canada aquired the rights to the "C" and "S" lines.

This unit was sold under several brand names in the US and Canada, including Climette, Keeprite DM, Carrier Wallmate, Whirlpool AVT, and McQuay TPW. Unit dimensions are 32" wide and 18" high. There were two sleeve depths available, 14.25" and 16.25" (most common). The Zoneaire "C" Series was made primarily in 208/230 and 265/277 voltages, although there were a few 115V units built for cooling oly or hot water/steam heat applications. Cooling BTU's ranged from 9-15000 and electric strip heat in 15, 20, or 30 amps.

The current version of the unit is the Applied Comfort DMQC unit. It features dual motors, standard or electronic controls, and a redisigned sloped from.

The Zoneaire "S" series was made primarily for the USA market. It was also sold under several brand names including CooolHeat, Embassy Weather Twin, Sears Kenmore, TPI, as well az Zoneaire. The Zoneaire "S" series was available in 208/230V, 265/277V, and 115V. The 115V units were for hot water/steam heat applications. Zoneaire built the unit in cooling only, cooling with electric strip heat, and heat pump version with cooling capacities from 9000-15000 BTU and 15, 20 or 30 amp heat.

The current version of the unit is the Applied Comfort SCE unit. We currently stock this unit in several popular configurations.

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Zoneaire PTAC | Replacement PTAC Units for Zoneaire

We believe your attention to detail is what makes your company stand out (the finished installation not only works well, it looks good).

-Nez W. Bumpass, VA

The inspector said it was one of the best installations hed seen no problems, no issues.

- Doug F. Chamberlyne Farms

Thanks again for your wonderful attention to this project. You and your team certainly made it totally painless."

- Aamer S. Westover Hills

The quality of the personnel that works for Hungerford is one of the main reasons we continue to use your company."

- Dianne I. West End

Hungerford has the finest customer service I have ever had from a fuel provider; and I have worked with several over the years. My company switched to Hungerford from a competitor who let us run out 3 times. We are glad to be back with Hungerford.

-Russell H. Central Va.

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Hungerford HVAC | Heating and Cooling Service and Repair

Sustainable solutions for healthier buildings.Steril-Aire is the global leader in high-output ultraviolet germicidal solutions for improved indoor air quality and energy efficiency. Installed in new or existing HVAC systems, Steril-Aires UVC Emitter germicidal lamps keep HVAC coils and drain pans clean, reducing energy consumption and costly cleaning programs. Using the proven power of germicidal UVC energy as an effective inactivation method for microorganisms, UVC Emitters improve HVAC environmental hygiene, making a vital contribution to indoor air quality.

Steril-Aire devices are used around the world in hospitals, laboratories, schools, government facilities, offices and homes. Steril-Aire devices are also used to enhance food safety through mold and bacteria control, extending product shelf life and production yields.

From reducing energy consumption and controlling costs, to optimizing human and mechanical productivity, UVC solutions from Steril-Aire pay measurable dividends to your bottom line.

Many UVC products claim to work as well as Steril-Aire. Steril-Aires multi-patented Emitters are the only UVC devices systems-engineered to work in the cold, moving air of the HVAC system. They have been independently tested and deliver up to 6 times the output of other ultraviolet devices.

You can count on Steril-Aire to work better and last longer.

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Steril Aire - UVC Lamps: Ultraviolet Germicidal bulbs for ...

CROSSVILLE Schools in Cumberland County have a long list of needs and wants when it comes to facility maintenance, upkeep and expansion. But as principals shared needs at individual schools with the facilities task force of the Cumberland County Board of Education last week, many were saying how thankful they were for what they did have.

"After listening to some of the others schools, I don't feel I should complain," said Pleasant Hill Principal Mary Ann Kotus. "We are in good shape, room wise, with the new addition and are just blessed."

Facility needs ranged from roof replacements to new playground equipment; from cameras and keypads to improve safety to replacing mortar between bricks; from new classroom wings to an auditorium at Cumberland County High School.

Individual school needs are:

Brown Elementary would like awnings over entryways and some sidewalks as well as a digital sign. All are considered capital outlay projects.

At Crab Orchard Elementary, discussions have been ongoing for a new classroom wing and new gymnasium to alleviate overcrowding and use of portable classrooms. The gymnasium is not handicap accessible and the playing area is small in size. Principal Becky Farley also said there is a need for a parking area and there continues to be confusion on if the access to the school is a driveway owned by the school system or a road owned by the county.

"We still don't know who owns the road, so I don't know that I have the authority to say who can and can't come through there," Farley said. In the afternoons, the street is made a one-way street to allow for bus traffic and parent pick-up, though Farley said it is not uncommon for motorists to ignore those signs.

Under maintenance issues, Farley said one playground was removed this past year due to age.

Her school is also experiencing leaks in the roof.

At CCHS, Principal Jon Hall said an auditorium had long been on a list of planned projects. In fact, an auditorium was part of the original school plans. It had also been proposed as part of the building program when Stone Memorial High School was constructed but was removed due to cost of the total project.

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Long list of school facility needs presented

The $24 million renovation and expansion of the Chrysler Museum of Art in Norfolk is not only the most ambitious in its history, but its director says new energy efficiencies could carve as much as a third from its massive utility bill.

Director Bill Hennessey said the museum's antiquated heating and cooling system was replaced during its yearlong overhaul with modern, centrally controlled chillers and air handlers, and every one of its 3,000 incandescent light bulbs was switched out, half of them replaced with energy-saving LEDs. The upgrades could cut its annual $600,000 utility bill by as much as $200,000.

"It was part of our overall package and the museum's commitment to do the right thing for the environment and also for our operating budget," Hennessey said Monday.

The Chrysler plans to reopen Saturday with new exhibits and additional gallery space, its caf and catering kitchen relocated behind the museum store and a main entrance made accessible to those using wheelchairs or walkers.

Museum officials have said the main priority of their renovation was to add about 10,000 square feet of gallery space, but energy efficiency was another alluring benefit.

Valuable displays are demanding when it comes to climate control, preferring temperature and humidity at constant, moderate levels year-round.

"Works of art don't like change," Hennessey said.

Their new system is built to deliver a constant 70 degrees F and 50 percent relative humidity, which he calls a "good compromise" among various types of art.

The museum's big AC chillers in the attic were 35 years old, Hennessey said, but their smaller, modern replacements should deliver a 25 percent energy savings.

And when the rest of the museum's 3,000 light bulbs are finally replaced with LEDs, he said they hope for similar savings there.

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Chrysler Museum gets energy efficient in $24m renovation

VOL. 129 | NO. 93 | Tuesday, May 13, 2014

Shelby County Commissioners approved Monday, May 12, an immediate infusion of $52.1 million in capital funding for Shelby County Schools and the six suburban school systems.

The compromise resolution worked out with leaders of the suburban school systems includes $4.8 million in capital projects at five of the six suburban school systems. It also keeps the $47.3 million in capital projects for Shelby County Schools a majority on the commission recommended in committee sessions last week. The Shelby County Schools list includes a new roof for Millington Central High School which is in the sixth of the six suburban school systems.

Shelby County Mayor Mark Luttrell had proposed $16.9 million in capital funding for Shelby County Schools, a proposal the commission rejected in committee.

The dollar total of the resolution approved Monday is more than the $50 million cap Luttrell and his administration had suggested spending on schools capital needs out of a total of $75 million in capital funding for all of county government. The larger amount for all capital funding is part of county governments debt policy.

But county Chief Administrative Officer Harvey Kennedy told commissioners and schools officials Monday that the administration could work with the $52.1 million amount approved and adjust the rest of the capital spending accordingly.

Shelby County government has not provided any capital funding for schools in the current fiscal year and the year before because of the historic transition of public education in Shelby County from two school systems to one merged school district and, starting with the new school year in August, seven public school systems within the county.

But $55 million in capital funding for schools was set aside by county government.

And commissioners were surprised to learn that the $5 million they approved in March for the last piece of public financing of the Crosstown redevelopment project came from the $55 million set aside for schools capital needs. Several said Monday they would have voted against the Crosstown funding had they known. Other commissioners argued that there had been no call for schools capital funding in March.

Shelby County Schools leaders wanted the capital funding before the end of the current fiscal year to avoid having to split such funding with the suburban school systems proportionately based on average daily attendance for each school system.

Link:
Commission Approves Compromise $52.1 Million in Schools Capital Funding

Richmond, VA (PRWEB) May 07, 2014

Family owned and operated LRI Home Services announces the opening of their new location in Richmond, Virginia. The new location will provide friendly, top quality HVAC and air conditioning services to residents and businesses throughout the Richmond area.

We are extremely pleased to announce our new location in Richmond, Virginia, said Dan McCarthy of LRI Home Services. One of the best things about providing HVAC services to the residents of the Richmond area is the unique way that the people here live and treat each other. As a family owned and operated business, we feel that LRI Home Services fits in perfectly with the people and pace of the Richmond area.

LRI Home Services is dedicated to providing fast, friendly and cost effective HVAC services, repairs and replacements. With over twenty years of experience, their technicians have been background checked, are well-mannered and highly trained to work with all types of heating and cooling systems.

HVAC systems must be regularly maintained to ensure their safety and efficiency. Seasonal maintenance can extend the lifespan of heating and cooling equipment, and save homeowners thousands on repairs and replacements. In addition, regular seasonal HVAC tune ups can significantly reduce a households energy costs throughout the year.

LRI Home Services recommends that homeowners schedule a seasonal tune up for their air conditioning system now. An air conditioning tune up performed in the spring ensures that the air conditioning system will operate smoothly and efficiently throughout the summer, when it is needed most. Any problems that are detected during a spring air conditioning tune up can be resolved before the air conditioning system is even used. This is an important step if homeowners wish to avoid costly repairs or even full replacement of their air conditioning system. High quality air conditioning services provided by LRI Home Services include air conditioning tune ups, air conditioning repairs and air conditioning replacements.

As a family owned and operated business, LRI Home Services understands just how important it is for homeowners to feel comfortable with their HVAC and plumbing company. This is why all of LRI Home Services technicians are carefully screened during the hiring process. All technicians are highly trained and experienced with all kinds of heatingand cooling systems. LRI Home Services guarantees top quality and friendly service every single time. No matter what type of HVAC service is required, LRI Home Services is able to make their clients feel like part of their family.

About LRI Home Services LRI Home Services is a family owned and operated business specializing in HVAC services and repairs. LRI Home Services offers fast, friendly and cost effective services to residents and businesses throughout the Richmond, Virginia area. Top quality services provided by LRI Home Services include air conditioning services, heating services, indoor air quality services, and emergency services. For more information about LRI Home Services, please visit their website at http://www.lrihomeservices.com.

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Residential and Commercial HVAC Service Company, LRI Home Services, Announces the Opening of Their New Richmond ...

School notes

Wednesday May 7, 2014 10:43 AM

This summer will be ex-tremely busy for the Dublin City School District.

Our staff will be conducting summer school, working on building improvement projects, and preparing for the 2014-15 school year.

Advanced credit courses will be offered in a blended learning model utilizing the Dublin Technology Center this summer.

This means students will have some initial face-to-face time with an instructor, but will spend the majority of their time completing the course in an electronic format.

These courses were developed, and will be taught, by Dublin City Schools teachers.

Examples of some of the course offerings include: English IV, Chinese I, Physical Science, Health, Economics, Government, Algebra 1 and Environmental Science.

A complete list of available courses is available on the District's web site. You can download the summer school brochure at http://www.dublinschools.net/summerschool.aspx.

Elementary staff have developed an online resource for students at https://elementarysummerschool.wiki.dublinschools.net/.

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District is a busy place during summer 'vacation'

Montgomery County Executive Isiah Leggett is recommending the county direct about $41.3 million more than he originally proposed toward school construction projects.

The extra funds would produce a total of more than $1.5 billion for Montgomery County Public Schools capital improvement program for fiscal years 2015 through 2020, compared to Leggetts original proposal in January of about $1.1 billion.

Leggetts recommendation to increase county funding for the school system follows unsuccessful efforts in the General Assembly to give Montgomery $20 million more a year in state funding for school construction projects.

School board President Philip Kauffman said Monday the extra money Leggett is recommending would help the school system somewhat, but still leaves a significant funding gap.

There still will be significant delays to projects across the county, he said.

Before Leggett released his recommendation, the County Councils Education Committee approved Monday a plan aimed at addressing the roughly $230 million gap between the school systems request for capital funds and Leggetts original proposal.

Council President Craig L. Rice (D-Dist. 2) of Germantown said the recommended funding which come from school impact tax revenue might alter that plan.

Were right now in feverish meetings to see what in fact this means for us, Rice said Tuesday.

Under the plan the council committee approved, the school system would cut about $170 million over the six-year period through one-year delays to all projects including additions, revitalization and expansion projects that dont have construction funds in fiscal 2015.

Larry Bowers, the county school systems chief operating officer, said the plan wouldnt delay any project that is either already under way or going to get under way in fiscal 2015.

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Leggett proposes $41 million more for school construction -- Gazette.Net