Chill water verses Conventional DX air-conditioning.

Chill water Cooling verses Direct Expansion (conventional AC)

1/4/2013

A chilled-water applied system uses chilled water to transport heat energy between the air side, chillers and the outdoors. These systems are more commonly found in large HVAC installations, given their efficiency advantages.

The components of the chiller (evaporator, compressor, an air- or water-cooled condenser, and expansion device) are often manufactured, assembled, and tested as a complete package within the factory. These packaged systems can reduce field labor, speed installation and improve reliability.

Alternatively, the components of the refrigeration loop may be selected separately. While chilled water systems are rarely installed as separate components, some air cooled chillers offer the flexibility of separating the components for installation in different locations. This allows the system design engineer to position the components where they best serve the space, acoustic, and maintenance requirements of the building owner.

Another benefit of a chilled-water applied system is refrigerant containment. Having the refrigeration equipment installed in a central location minimizes the potential for refrigerant leaks, simplifies refrigerant handling practices, and typically makes it easier to contain a leak if one does occur.

Factors affecting the decision to select Direct Expansion V Chilled Water Applied systems include:

1. Installed Cost
2. Energy consumption
3. Space requirements
4. Freeze prevention
5. Precision
6. Building height, size, shape
7. System cooling and heating capacity
8. Centralized maintenance
9. Stability of control
10. Individual tenant billing

Williams Air Technologies LLC offers a comprehensive design and energy analysis to help you consider all factors in selecting the correct type of system for your project.

Visit our website at www.williamsairtechnologies.com.

Small business can reduce unemployment.

IS IT POSSIBLE TO REDUCE UNEMPLOYMENT BY USING UNEMPLOYMENT DOLLARS?

Is it possible to significantly reduce America's unemployment along with unemployment benefits at little or no addition to deficit or burden to the tax payer? I think so and it is not as difficult as our experts make it to be.

And since am not even close to being an expert I am going to out line my case in very simple terms.

First a working database of all small business that were in operation continuously for 5 years prior to 2008 should be compiled.

Next a database of all unemployed from 2008 to 2012 showing demographics, experience and qualifications should also be complied. I know someone id going to say that the information already exist. This information should be precise and reliable.

Then everyone that is being paid unemployment should be matched against data the employment database. Matches from this database should then be compared to the small business database.

Now small business must be reclassified for this to work. A small business should be classified as employing 200 persons or less.

Unemployment monies paid to the unemployed candidate should be made available to the small business to aid with the employment cost of the unemployed. Also small businesses in need of managerial expertise would be able to shop the database,

Projected savings with the program should be used on a revolving basic to further assist these small business with growth and development.

The unemployed worker could continue to shop for other employment or remain with the company if growth potential exists. The small business should be given two years to solidify its position and should be able to show encouraging growth potential during that period.

Lets face it; these individuals possess great skills, qualifications and or experience. They are already being paid all be it at a reduced rate. In many cases their involvement could change the profile of small companies making competitive and able to appreciate their market share in their line of of work. Some of these workers will not be returning to their past positions and risk accepting jobs at reduced rates. Many might be in search of new careers.

I believe using monies already budgeted for unemployment to aid small businesses and increase employment and personal self esteem would benefit the country greatly.

We have to put people back to work and we cannot continue to do it on a charitable basis. There are thousands of middle age workers being retrained without the prospect for finding employment in the near future. There are many business on the verge of going under due to not being able to meet labor costs and employ the numbers necessary to turn the corner and become profitable. Institutions like SBA are a night mare to deal with. Many companies have had their credit destroyed because of the economic situation of the country.

Unemployment benifit can reduce unemployment

Customers have lots to loose when they employ unlicensed HVAC contractors.

HOME OWNERS HAVE ONLY THEMSELVES TO BLAME FOR PROBLEMS ARISING AS A RESULT OF THEY EMPLOYING UNLICENSED CONTRACTORS TO DO HVAC REPAIRS.

Home owners should not employ unlicensed HVAC contractors to undertake paid HVAC work at their homes and businesses. Besides being a safety issued unlicensed contractors do not carry insurance and cannot honor warranties. Their work may be cheaper because they carry no responsibilities. Insurance companies will not cover defects or home incidents that resulted after work was undertaken by unlicensed contractors. It is not worth the risk to personal life, life of animals and property to have unlicensed contractors undertake HVAC work. Also unlicensed contractors are usually unstable and are unable to be reached to undertake repairs.

The Texas the Texas Department of Licensing and Regulation Enforcement Division carries out “stings” across the state to catch unlicensed businesses offering to perform air conditioning services. It is against the law to perform air conditioning (A/C) service or maintenance without a license.
The following individuals were caught in TDLR “stings” during the first quarter of 2012:
Costco Wholesale Corporation                                                                                                       Houston
Anthony Pena                                                                                                                                     Houston Austin’s Affordable A/C & Heating (Marc T. Wyatt)                                                                       
 Houston
Precision Air Conditioning & Heating Services (Juan Gonzalez)                                                Houston Fernando A/C Refrigeration (Gerzoon F. Calderon)  
 Houston
Long’s A/C & Heating Service (Thomas V. Long)                                                                           Houston
Donnie Norris                                                                                                                                       Houston
Phillips Mechanical (Russell Phillips)                                                                                             Houston
Santos Air Conditioning & Heating (Santos Clemente Paiz)                                                         Houston
TanGar Enterprises (Garnett D. Dubose)                                                                                        Houston
Men on a Mission (Delmer W. Hunter)                                                                                               Houston
Renaissance Building and Design (Brian Thomas Tow)                                                              Houston

EPAn EPA certification is needed for certain home painting jobs.

EPA LAUNCHES NEW LEAD CERTIFICATION REQUIREMENT

By Peter Landau, Editor, Indoor Comfort News

The U.S. Environmental Protection Agency (EPA) announced that renovation, repair and

painting of pre-1978 housing and child-occupied facilities for compensation must now be

conducted using safe practices to protect children and pregnant women from exposure to

lead-based paint.

EPA proposed the Lead Renovation, Repair and Painting Rule (RRP), which require

contractors to be trained and certified in lead-safe work practices, in 2006. In 2008, EPA

finalized the rule and set April 22, 2010 as the implementation date. To date, EPA has

certified 204 training providers who have conducted more than 6,900 courses, training an

estimated 160,000 people in the construction and remodeling industries to use lead-safe

work practices.

According to the Federal Register, the opt-out provision that currently exempts a firm

from the training and work-practice requirements of the rule where the firm obtains a

certification from the owner of a residence he or she occupies that no child under age six

or pregnant women resides in the home and the home is not a child-occupied facility is

removed effective July 6, 2010.

Federal law requires that individuals receive certain information before renovating six

square feet or more of painted surfaces in a room for interior projects or more than twenty

square feet of painted surfaces for exterior projects or window replacement or demolition

in housing, child care facilities and schools built before 1978.

 Contractors who perform renovation, repairs and painting jobs in pre-1978

housing and child-occupied facilities for compensation must, before beginning

work, provide owners, tenants and child-care facilities with a copy of EPA’s lead

hazard information pamphlet “Renovate Right: Important Lead Hazard

Information for Families, Child Care Providers and Schools,” dated April 10,

2010, before starting work. It is available here:

www.epa.gov/lead/pubs/renovaterightbrochure.pdf. The brochure is expected to

be amended sometime in July.

 Child care facilities, including preschools and kindergarten classrooms, and the

families of children under six years of age that attend those facilities; renovators

must provide a copy of this pamphlet to child care facilities and general

renovation information to families whose children attend those facilities.

Certification is a two-stage process, beginning with individual certification that requires

one member of the contracting firm take an accredited eight-hour training course, pass an

exam and be entered into an EPA Headquarters database in Washington, D.C. The

individual will get a photo identification card and a Certificate

Homes owners should be vigilant and ensure contractors are certified prior to they undertaking home painting jobs. If your home was constructed before 1978 the possibility exists that lead paint was used. Lead has been proven to be hazadorous especially to children.

Jules Williams.

Building Analyst.

Williams Air Technologies Integrated Approach to HVAC.

 About Williams Air Technologies:

Service beyond Compare.

Williams Air Technologies LLC provides an integrated approach to  Air-conditioning service to include all components of the original air-conditioning patent of Willis Carrier. We adhere to the initial air-conditioning concepts as described by Mr. Carrier 126 years ago.

Willis Havilland Carrier was born on November 26, 1876, in Angola, New York, the son of Duane Williams Carrier (1836–1908) and Elizabeth R. Havilland (1845–1888). Elizabeth R. Havilland, the daughter of David Jay Havilland and Ann Elizabeth Button, named him Willis Havilland after her uncle-in-law Willis Hoag Havilland, with whom she lived after the death of her father in 1868 and before her marriage to Duane Carrier. Willis Hoag Havilland was both the husband of her mother's half-sister Hannah Wing Havilland, and her father's 1st cousin once removed.

The first modern air conditioner. Carrier's invented not only provided comfort at home, but also allowed for the controlled conditions necessary in many environments: industrial and scientific. Inventor: Willis Haviland Carrier Criteria; First to patent. Modern prototype. Entrepreneur. Birth: November 26, 1876 in Angola, New York. Death: October 9, 1950 Nationality: American Invention: Air Conditioner Function: noun / air-con·di·tion-er Definition: An apparatus for washing air and controlling its humidity and temperature. A system that keeps air cool and dry. Used to enhance comfort as well as improve industrial processes and products. Patent: 808,897 (US) issued January 2, 1906

Williams Air Technologies provides an integrated approach to the air-conditioning process to include all major components; heating, cooling, humidity, noise and dust. We go one step further by in-cooperating energy efficiency into our service mindset.

We provide the following  services.
Air- conditioning design.
Air conditioning service.
 Data Logging of temperature, dew point, wet bulb and humidity from 1 to 5 days.
Air conditioning installation.
Condenser, coil, furnace, relay board, zone board and IAQ, Energy recovery WIFI thermostat and much more.
Air-conditioning design:  Using HVAC software,  Williams Air Technologies estimates HVAC loads, design air delivery components and sizes. Based on this information we select appropriate equipment . We then provide various brands and efficiencies to our customers for their decision as to cost and  features .
Air-conditioning Service:    We believe that a well maintained air-conditioning system will provide years of comfort and reliable operation at an affordable price. Maintenance pro-long the life of equipment, furniture and other house hold items. Maintenance also reduces operating time therefore reducing the operating cost of the equipment.
We provide maintenance programs to suite every installation at a very competitive cost.
Williams’s air technologies LLC install air-conditioning equipment from all major brands and manufacturers. These manufacturers provide attractive warranty and component support. Williams Air Technologies provides labor warranty and service and maintenance support.
We provide other support Air-conditioning Service to include duct leak testing, zoning, energy audit, humidification, de-humidification, energy recovery  and indoor air treatment.
We also install ceiling and wall insulation, radiant barrier, solar tube and solar attic ventilator and attic tents. A description of solar tube and solar ventilator can be found at the solar page of our website.
EQUIPMENT:         Williams air Technologies LLC installs all major brands of Air-conditioning Equipment and industry rated components. We install Carrier and Bryant, Goodman and Amana, Lennox, Mitsubishi and other reputable brands.

 We are cognizant of our Houston’s weather with regards to high humidity; we provide equipment with moisture control in mind. Using multi stage condensers and variable speed blower units we are able to manage indoor humidity. Lowering indoor humidity makes air feel much colder. Thermostat setting can then be increased to achieve comfort, resulting in shorter operating time and lower cost.
For homes or business shared with pets, or where allergies are a concern, we install whole house filtration systems and we treat the air with UV light. Filtration removes most air borne dust particles while UV kill viruses and eliminates harmful bio sources. We install exhaust fans in rest rooms and bathrooms for improving indoor air quality and controlling moisture.

Sola-tube provided light from the sun into areas that are dark natural light enhances the comfort of an occupied space, thus providing  a healthier environment for people, plants and animals. Natural light also reduces growth of undesirable mold and mildew.

 Solar Attic Ventilator:     Attic insulation is used to prevent heat migration from attic and crawl spaces to occupied areas. The heat enters the attic through conduction, convection and radiation. Insulation is used to retard its migration from attic to living space. The solar attic ventilator begins to operate when the solar panel is exposed to sunlight. While in operation, the fan removes air from the attic. When installed with a gabble fan, hot attic is removed from the attic .Keeping the attic cooler. This  leaves less chances  for hot air to enter the living space. Less hot air reduces air-conditioning load and electric bills.

Solar air-conditioning.     Williams Air Technologies LLC installs solar ready air-conditioners pre wired and configured by the manufacturer. These units provide electricity for operating the air-conditioner and other electrical components connected to the distribution system when sunlight is available. This renewable source of electrical energy further reduces operating cost.

Certification,  Professional Membership and Accreditation: We have  certification in Air-conditioning, Systems Design, Controls and Duct work. We are Certified by Building Performance Institute (BPI) as building analysts. We hold Membership with American Society for Refrigerating Heating and Air-conditioning Engineers; and we are accredited by the Better Business Bureau (BBB).

Jules Williams.

CAREER OPPORTUNITIES IN HVAC.

In the next five years, many HVAC technicians employed in the industry today will experience the same fate as the radio and television  repair technicians of the 70 s and 80 s. Today, every residential  repair application has experienced a downward trend in sustainability due to a shortage of skilled labor.

A new era in HVAC installation and repair started some 5 years ago and now is at full speed. The need for efficient building systems and regulated reduction in energy usage has driven the need for technological advancements in HVA

The need for real time information including what is happening at homes and also providing access to building information  has forced the introduction of controls for monitoring and controlling air-conditioners and other home appliances and utilities remotely. Today, a home owner can receive weather information from a wall thermostat; one can adjust set points, verify the condition of filters, turn HVAC systems on and off remotely. The systems are now able to verify their refrigerant charge, adjust air volumes, and maintain temperatures within a degree in every room. They can  decrease capacity at peak electrical usage times, and  provide diagnostics for more dozens of fault conditions.

For service and maintenance purposes the units operation can be started from the outside without access to the thermostat, or having to enter the home;  parameters can be obtained using onboard controls at the outdoor unit..

According to HVAC Excellence, 65.6 percent of service technicians in the HVACR industry will not be in the industry in eight years. The next generation of the industry should  now  be in the class room learning skills and approaches to match the demands of the ever-evolving market, and there is a growing sense of the need to recruit those who will serve as the technicians of the future.

Skills in Demand

Future HVACR technicians are busy learning tomorrow’s technology today. A growing desire for computer skills is apparent in the HVAC industry, just as they are in most other employment sectors.

David White, director, Advanced Robotic Technology, Brisbane, Australia, said every student with a technical aptitude has a desire to work with computers. We need schools to return to exposing kids to relevant industries where the scope for employment exists.

 

“The HVAC industry has a lot of computer-related areas including drafting, design, controls building management interfaces, manufacturing and more. We need to get  kids involved at a school level preparation for these  exciting and hands-on cereers so that they get the bug,” he said.
“There are now a lot of cool machines that take drawings and turn them into ducting and other components. We are finding that it is a real buzz for kids to actually produce something they can feel and touch from a computer drawing.”
Whole-home performance and energy-efficiency skills are also on the rise. Lincoln Technical Institute, Union, N.J., officials said their energy auditing certification course is currently attracting more attention than any other offering.
  HVACR curriculum council chair and education supervisor, Lincoln Technical Institute said “The future of the HVACR industry is based on the newer technicians’ ability to adapt and learn the industry’s latest innovations. As our industry evolves to a higher technological era, newer technicians will need to meet those advanced technologies with an open mind and sound HVACR knowledge.”
In addition to these new-world skills, Kevin Couch, HVACR instructor, R.G. Drage Career Technical Center, said young learners should not forget that the HVACR trade will continue to be based on old-fashioned, hands-on labor. Yet technological attractions will create the interest for young careers,
 
  All  of the skilled trades are facing a severe shortage; from bakers, roofers, stucco and plasterers, HVACR, electronic repair, electricians and plumbers, we all need skilled people,” he said. “Shortages specific to the HVACR sector reached that critical level a few years back. Why?  because all the vocational-tech schools shut their doors the world was going to be run by computers. Now, who can fix the furnace or air conditioners? No one, because no one wants  to do the manual work and we have not introduced our future work force to the controls being designed and installed in HVAC systems.

Recruiting the Next Generation
Industry members also stress that the combination of new and old skills needed — and the excellent career opportunities in HVACR — must be promoted in order to recruit more young people to the trade.

Steve Dodd, MEP advisor and director of service and energy, Fidelity Engineering Corp., Washington, D.C., referenced several new skills becoming relevant in the HVAC sector.
 “These skills include technology, intelligent devices, green, financial influence, stability, health effect, and more,” said Dodd. “First we need to educate guidance counselors as to these things since they start the influence process as early as middle school.”

Jeff Plant, general manager, Springfield Mechanical Services Inc., Springfield, Mo., believes HVAC work is more than just physical labor, and agreed that young students need to be aware of the many opportunities available in the industry at an earlier age
“The first thing people think of when they think of HVAC workers is the old labeling of the construction worker. Although that spot for installation and backbreaking work is never going to be replaced, there are many other avenues and opportunities that present themselves in this trade,” he said.

“If we want to attract younger people to this trade, we need to relate. Show them the wide array of opportunities that this trade offers. We as successful tradesmen need to visit the local high schools, help with  local apprenticeship programs and share our stories. 
“Today, students should  learn thermodynamics, mechanical, electrical, hydronic  principles, customer service, and sales skills,” we should return to past learning formats that served so well in preparation for the industrial age.

“We need to have technicians who can adapt to all the changes that have happened, and will happen in the those fields that hold promise for employment and enhanced quality of life.
 
Jules Williams
Building Analyst
MASHRAE.