In the days leading up to and through Memorial Day at P.C. Richard & Son in Danbury, it had shaped up as among the busiest seasons manager Chris Ramsey has seen for air conditioner sales. The store cleared through its existing stock in four days and received a new truckload on Wednesday as temperatures hovered around 80. One model you won’t find center stage in the P.C. Richard & Son showroom is a newfangled ductless, “mini split” unit that attaches to the wall rather than getting installed in the window. The store sells mini splits, but like many local and national retailers, it orders individual units as they are sold because most homeowners require a contractor to install them. Ductless air conditioners are installed with an outside compressor and condenser unit that sucks in air, cools it, and channels it via an exterior conduit through the wall to an opposing interior unit attached to the wall of a room. A remote control allows air to be cooled to the needed temperature and either fanned throughout the room or directed to a specific zone.

Many mini split models are designed to produce warm air in winter weather, as well; the ability to situate mini splits in remote corners of a building — for instance, in small doctor’s office suites or finished basements in homes — gives them added appeal.ac unit 8000 btu In addition to Friedrich, major mini split manufacturers include Mitsubishi Electric, Fujitsu, Daikin, Gree and LG, as well as the Carrier subsidiary of Farmington-based United Technologies (NYSE: UTX). trane residential ac unitGeneral Electric sold a competing product under the Quiet-Aire brand but no longer does so, with GE in the process of selling off its Louisville, Ky.-based GE Appliances division to China-based Haier.air conditioning unit icing Mini splits are not cheap — prices range between $1,000 and $5,000, not including installation costs — but in theory they add to the value of a home or office.

Manufacturers have reduced the profile of the interior units over time to make them less obtrusive, and have developed versions that can be installed in drop-ceilings to stay out of sight. And unlike traditional air conditioners, mini splits do not occupy window space, allowing for more light to enter a room and on ground floors eliminating any security concerns of building owners or tenants. Ductless ACs are considered less expensive to operate, and for small areas are more efficient than central air conditioning systems that by some accounts leak air at a rate resulting in a 30 percent loss of energy efficiency. Like P.C. Richard & Son, both County TV & Appliance in Stamford and Aitoro in Norwalk sell ductless air conditioners from Friedrich, as do big box retailers like Home Depot and Lowe’s in Fairfield County and nationally. Sales are dominated by local heating, ventilation and air conditioning (HVAC) installers, however, with a London market research firm called Technavio estimating that ductless split air conditioner sales are increasing at a rate of 6 percent annually.

Traditional window-mounted air conditioners still dominate sales at County TV & Appliance, according to Seth Rosen, general manager of the Summer Street store, due to their “cash and carry” characteristic allowing for immediate home installation and relief during hot weather when sales are highest. He added that many newer homes are being built with central air conditioning. Despite having central AC at his own home, however, Rosen uses ductless units in multiple rooms lacking conduits to the main system. We have a strong team of experienced tradesmen, who ensure installations are coordinated and installed in a fast, most efficient and professional manner. We offer a 6 year guarantee on our quality workmanship with every installation. Best price guaranteed on Supply and Installation Packages. The page you requested was not found on this web server. for a variety of reasons, including: You followed a broken or out-of-date link. You entered the URL for the page incorrectly.

The page no longer exists. If you followed a broken link, please inform the owner of the If you have any queries about this error, please [ Powered by Zeus Web Server ]Clicking this will sort the products in order of latest products to oldest products and vice versa. Clicking this will sort the products according to their prices - lowest to highest and highest to lowest. Clicking this will sort the products according to their rating out of 10 - lowest to highest and highest to lowest. Clicking this will sort the products according to their popularity - least popular to most popular and vice versa.This year the majority of the world’s leading manufacturers to bring to market for new air conditioners , eco friendly , refrigerant R32. So , Daikin this spring released refrigerant R32 version of its top-end air conditioner – Ururu Sarara ( air conditioner Daikin Ururu Sarara R32 is already sold in Europe and managed to win the prestigious Red Dot 2013 ) .

The world’s largest manufacturer of climatic equipment company Gree, began selling household split systems not only refrigerant R32, but also not afraid to market a version of the refrigerant R290 ( propane) . Conditioners on their R32 released of Fujitsu General, Hitachi and Panasonic ( sold only in the Japanese market ) . Even the company of “second tier” like Midea and Haier, have kept up with the leaders and summer in China began test delivery systems for R32. What are the advantages of refrigerant R32? First of all, in its ecology – its impact on the ozone layer and global warming is set to almost zero . The new refrigerant is fully consistent with very strict standards which will be applied in the European Union since 2018. Hence, a natural desire to advance leaders break in new technologies is still at a fairly expensive models and 2018 massively introduce their models budget price range. Besides, the new refrigerant a huge potential for creating high air conditioners.

Below in Table 1 , we present the energy efficiency of air conditioners on the coefficients R32 ( comparison models 2.5 kW ) . Second law of thermodynamics states: ” The heat spontaneously moves from hotter bodies to bodies less heated .” Is it possible to force the heat to move in the opposite direction ? Yes, but in this case, additional costs of energy ( work) . Systems which heat is transferred in the reverse direction is often called heat pumps. The heat pump can be a vapor compression refrigeration system , which consists of the following major components : compressor, condenser , expansion valve and evaporator. Gaseous refrigerant enters the compressor inlet . The compressor compresses the gas , with its pressure and temperature increase (universal gas law Mendeleev – Clapeyron ) . Hot gas is fed into the heat exchanger , called a condenser, where it is cooled , transferring its heat to water or air , and condenses – passes into a liquid state. Next, at high pressure fluid path set expansion valve reduces the pressure of the refrigerant.

The compressor and the expansion valve closed hydraulic circuit divide into two parts: the high pressure side and the low pressure side . Passing through the expansion valve portion of the liquid evaporates and the temperature of the stream decreases. Unlike conventional heating systems based on the combustion of gas or liquid fuel , as well as direct transformation of electric energy into thermal energy in the heat pump is not consumed to produce heat , but only its transfer from the external environment . That’s what makes these systems an attractive solution for space heating and hot water at sites with limited energy resources. Heat pumps ” Ekodan ” manufactured by Mitsubishi Electric, intended for individual heating and hot water town houses and similar buildings that do not have access to such a relatively cheap energy sources such as gas and liquid fuels , as well as substantially limited in the electrical power input . Maximum heat output of a system of ” Ekodan ” is 14 kW, which is commensurate with modern heat loss of individual country houses.

To increase the power provided an opportunity to cascade systems. Heat pump ” Ekodan ” consists of two units : the outdoor unit , which is largely similar to the outdoor unit air conditioner, and indoor unit – hydronic heating water performing . Units are equipped with all the necessary control devices , control and regulation . Installation of such a system is no different from conventional air conditioning installation – cope with it any HVAC company . Excludes complex design heating and DHW system of separate components: a hydronic distribution system simply connects to the sanitary water use , as well as forward and reverse heating pipes . According to the normative literature containing sanitary requirements for residential buildings , they should be provided with ventilation natural impulse . These are the most well-known all exhaust grilles in the kitchen, bathrooms and bathroom. A compensation exhaust air usually provide by entering the room apartment outside air through gaps in window openings , through open windows or skylights .

There is such a thing as the outside air infiltration – the influx of outside air seeping through cracks external protections under the influence of wind and gravity. The beauty of this solution is that the optimal size of the window openings leaks and power headroom heating system we get a natural flow of fresh air , rich in oxygen , without additional construction and money. In the calculations of ventilation in residential buildings sanitary norm of fresh air for each person in the room is usually considered 60 m3 / h per person or 3 m3 per 1 m2 of living space . This article we begin a series of articles devoted to the use of HVAC equipment for heating and domestic hot water (DHW) . On our domestic market climate in the eyes of consumers conditioned firmly established reputation devices that buy solely for cooling the indoor air . The function of heating, and in rare cases it is regarded as more . However, around the world related to modern split- systems is quite another .

In some countries , such as Britain, Norway, Sweden , Germany and others, the majority of purchases of air conditioners is made mainly due to the heating function . Modern split – systems operating in heat pump mode (Heat Pump), can work not only for heating the air in the room , but also used in the heating system for hot water . In this article we will try to simple language accessible to the consumer in the form of talk about the use of air conditioners for heating . We will not go into technically sophisticated consumer jungle describe heat pumps , and in a simple manner try to convey to him the story about the pitfalls that exist in the field of application of air conditioners, as well as the principles of selection models. We hope that this article will be useful to buyers , and they will be happy with the choice that will make after reading this article . Reversible operation mode Continue reading Earlier we said that there are some problems when working air conditioners in heating mode at low temperatures.

And, of course , if the manufacturers have not overcome them , conditioners and would continue to buy mostly just because of the cooling mode , only occasionally including their heating on in the offseason. Next, we will explain what the technical solutions have allowed to become full conditioners heating appliances .We have already said that at certain temperatures compressor oil ceases to be dissolved in the coolant , and the problem is easy to solve. The first way is to install on the bottom of the compressor crankcase heater that runs at low temperatures. In the crankcase will always be a mixture of refrigerant and oil , and will not be “cold” start compressor. This solution is not very energy-efficient and widely used only for non-inverter , the so-called start-stop (On-Off) air conditioners. This solution enables you to omit the lower bound start the air conditioner to a level -15 ° C. Basically this solution used Chinese manufacturers of climatic equipment . The fact that the prices of start-stop air conditioners are low enough and complete masters of the market economy class are Chinese .

Just this solution widely used in OEM brands of air conditioners, which are widely available on our market and are produced by the same Chinese manufacturers. By the way, this solution is so simple that it can be implemented on virtually all models of air conditioners. Any mounting HVAC company in its proposals has so-called low-temperature kits for ” upgrade ” the air conditioner on low-temperature start. Major branded manufacturers focus on more energy efficient equipment – inverters . The first system is a hybrid heat pump DAIKIN combines two well-proven in practice technology : heat pump ” air-water ” and gas condensing boiler , creating having high energy and economic efficiency of your home’s existing heating and hot water , which is an ideal replacement for gas boiler. Annual efficiency of the hybrid heat pump DAIKIN Altherma approximately 35% higher than that of the gas condensing boiler , which is now considered the best of the proposed solutions on the market to replace old heating systems during the general renovation of the house.