HVAC stands for heat, ventilation and air conditioning, this technology provides indoor as well as ventilation comforts to the household. HVAC systems are used in mechanical engineering to achieve thermal comforts in building. This equipment includes chillers, radiant systems, humidifiers, air conditioners,dehumidifiers, boilers, heat pumps and many more.
In modern buildings HVAC equipment plays an important role in residential structure. It helps in enjoying luxurious life to the people living in the building. With the help of HVAC equipment, if cooling is required in building then the heat inside the building can be pumped out to give cool environment but if the hot environment is required then heat can be either generated or pumped inside from outside. HVAC system use in commercial and domestic environment for providing acceptable indoor air quality and thermal comfort within reasonable installation, operation and maintenance cost. Technology used by
HVAC systems company is discussed below:
Heat Generation System used in HVAC
1. Furnaces and Boilers- Furnaces and Boilers are used to produce and distribute heat. Boiler is a vessel which can used to burn natural gas, heating oil, wood etc. combustible fuel and then pushes the steam or hot water using radiators, baseboards, or under floor radiant heating. Furnace is used to force heated air through ducts. The replacement of filters and cleanliness of duct work is required on a regular basis to preserve the air quality.
2. Electric Resistance Heaters- Electric resistance heaters heat up while current is passed through it. baseboard heaters, Convector Heaters, Wall Heaters , Radiant Heat , uses electricity to heat up air.
3. Solar Thermal- Solar thermal uses sun energy rather than fossil fuels to generate heat HVAC system because it is based on climate.
Heat Moving Systems in HVAC
Heat pumps are used to move thermal energy rather to generate heat. Few heat pumps can be used to move heat either outside or inside the building. It transfers heat in the building by circulating a substance called a refrigerant through a cycle of evaporation and condensation.
HVAC systems Size and Efficiency
The size and efficiency of HVAC system depends upon the design of the building, mass and openings etc. The size of heating and cooling unit depends on the rate in which it is supplied. Heating size is calculated in Btus per hour and cooling size in tons.
Btus can be calculated below:
BTUH = .33 x [square footage of building to be heated] x [difference between outside and inside design temperatures]
If the proper sized HVAC system is used the efficiency of the system is more as compared to wrong sized system.
HVAC Installation Steps
To install the HVAC system in your building following steps are used which are given below:
1. Calculate the load for proper sizing of unit.
2. Find a suitable location for the fan coil unit.
3. Cut the return air opening.
4. Construct a simple platform to implement the unit.
5. Attach supply plenum ring to move the fan coil past the platform edge to accommodate the plenum ring.
6. Connect the condensate drain to the fan coil unit.
7. Connect refrigerant lines from outdoor condensing unit to indoor fan coil unit.
8. Connect supply tubing and plenum duct.
9. Install terminator outlets and sound attenuation tubing.
10. Install supply tubing.
After completing the installation process the last step is to supply the power to make it working. In modern buildings HVAC system provides healthy environment to the people living in them. This technology improves the lifestyle of the people in the great manner.
The advent of 
Someone apparently told the Serbian woman that it would be easier to get a marketing job in a multinational as the work would be in English. Her CV Profile states that she’s looking for an opening position in Marketing. Unfortunately she’s no experience in the domain, her written English isn’t good enough to do copywriting and she doesn’t know Adobe InDesign. If a potential employer had read past the quirky English in the CV, they’d have given up at this stage. Few companies will hire a beginner who needs work papers. They can hire locally.
It can be a risky decision to do a career change when looking for work in a country where you need work papers but don’t have any practical experience to offer in your new career direction. Get as much experience as you can before seeking work in another country. You need something to sell!
Research the job market and types of companies in the country that interest you. The Serb was fluent in several languages but only in one (English) of the three important languages for working in Brussels (French and Dutch also matter). Realistically she may have a better chance of finding work in Germany as companies there may be more commercially active in the Balkan region than companies based in Belgium. So her knowledge of that regional market could perhaps be a selling point to a German company. Understand what the market is looking for.
The challenge to get work papers
The unfortunate reality is that work papers can be hard to get. Few companies will hire you directly from another country without first meeting you. You will increase the chance of finding work by going to your desired country for a month or more (the longer the better) and making as many face-to-face contacts as possible to hunt down that opportunity made for you. It can take time to knock on all those doors and follow up leads. Simply mailing out CVs isn’t enough.
When a company wants to hire someone from outside the EU (which is 28 countries), they need to be able to show the authorities that they couldn’t find someone in the country suitable for the job on offer. Another condition prospective employers may need to meet could be the minimum salary level that they can offer. In Belgium, for example, it is currently nearly 40,000 euros ($54,000) a year for a skilled position (salary reference). In other words, you won’t get work papers to do a low paid job. You need skills and experience.
It’s hard looking for work in another country, particularly if you’re not based there and will need work papers. It takes determination and focus to chase a dream and make it happen. 
Day and time of our monthly SIG Watercooler Chats is changing
From October onwards, the chats will move to the second Wednesday of the month at 6pm CET (12 noon ET).
Agenda for the next three months
Based on member feedback for topics to discuss, the chats for October, November & December will be:
October 15 = Terminology management
November 12 = Prioritising and determining the ROI when internationalization technical content
December 10 = Getting started in and planning localization projects
Results of the survey
What type of work do you do? (More than one answer is possible)
Type of work Percentage
Technical writing in English 70%
Manage a documentation team 46%
Technical writing in a language
other than English 31%
Manage/co-ordinate
localization projects 31%
Other 15%
Translation 7%
Which categories of topics would interest you the most for discussion? (Ranked in order of preference)
Localisation and translation issues
Internationalisation issues
Intercultural issues in the work environment
What’s your experience in internationalisation and translation?
Amount of experience Percentage
More than 6 years 39%
No experience 23%
Up to 3 years 23%
3 to 6 years 15%
What’s your experience in internationalisation?
Amount of experience Percentage
More than 6 years 38%
No experience 31%
Up to 3 years 31%
3 to 6 years 0%
What’s your experience working with intercultural issues?
Amount of experience Percentage
More than 6 years 62%
Up to 3 years 23%
No experience 8%
3 to 6 years 8%
What topics would you like to discuss in our chats? Proposed topics are listed below. Ranked in order of preference:
Documentation standards for global content
Developing a global strategy for your content
Terminology management
Impact of the business environment when producing content for a global market (e.g., mergers & acquisitions, outsourcing, virtual teams, organizational silos, cultural issues)
Metrics and localisation
Getting started in and planning localization projects
Localisation and agile
European Union directives and their impact on documentation
Working with English as a second language and with multiple versions of English
Regulatory/legal issues related to the European market
Translation memories Getting the most from them
Working with localization service providers
Topics proposed by respondents:
Translation management technology and workflow
Component content management in multiple languages
How to demonstrate ROI and priority of internationalization
Which day of the week would you prefer the Watercooler Chats to be held once a month?
Day of the week Percentage
No preference 54%
Wednesday 39%
Tuesday (current day) 7%
What time of day would you prefer for the Watercooler Chats?
Time of day Percentage
18:00 CET (12.00 pm ET) 46%
17:00 CET (11.00 am ET) 39%
19:00 CET (1.00 pm ET) 15% 
Some of us worked in environments where there can be different versions of English in use across the company worldwide; US, UK, Indian, Australian. It’s not always possible for technical communication groups to expect that only one version of English can be used in documentation worldwide. Regional markets can have their own demands. We need to understand local as well as global situations. There was also the challenge of ensuring correctly written English from globally dispersed writers who used another version of English in their own country.
China and documentation standards
Chinese manuals. Infamous. Often incomprehensible. The “contaminated English” found in many Chinese manuals often seem to be covered in the fingerprints of Google Translate (or an equivalent tool). The English can be amusing but it’s also frustrating to understand and challenging to rewrite.
The reality is that most Chinese companies only sell within China. So when selling internationally, they write their English manuals using the same practices as when they write documents for their own local market. The content is often more descriptive than instructional.
Manuals are usually written by engineers (an increasing number of whom have been trained in the US) as well as translators, whose training may not always produce a good quality of English. The concept of technical communication is in its infancy in China. Few Chinese writers are familiar with the principles of information design.
Chinese companies still have a long way to go in appreciating the benefit quality documentation can have on their profits.
Phone etiquette
We all regularly teleconferenced with colleagues located worldwide. Although great for work and for developing working relationships, a common problem encountered was poor sound quality. This could be due, for example, to people phoning in from their desks or cars, or using mobile phones.
Distracting background noise makes it difficult to clearly hear what’s being said. Native speakers can also speak too quickly. Unfortunately people may not speak up to say that they can’t follow the conversation, either through shyness or for fear that their English could be considered too poor. In a successful teleconference, everyone needs to understand phone etiquette.
Accents can cause problems. Unfamiliar ones can be difficult to understand over a phone line, particularly if there are no visual cues to help. Video conferencing is great but not everyone has access to it.
We all agreed that it’s important to write up the meeting so that everyone is clear on what was discussed and agreed upon, particularly if some may have had problems hearing or understanding what was said.
It takes practice and patience to get used to working with different accents as well as the English spoken by those who don’t have English as their first language.
Great chat
We had a great informative chat with everyone participating and sharing their experiences. Yet cultural differences don’t just cover language and national issues. Unfortunately we ran out of time to discuss the other hot cultural issue, corporate culture, and how it differs around the world.