Chiller-fankoylovaya system

Stove for heating and heating of air exchange was used in Russia for centuries. Well protoplennaya oven retains heat for a long time and provide space heating in cold weather. In recent years a proliferation of new and hitherto unknown technologies of micro-climate. The cottages began to apply a heating system with natural, and then with forced circulation of coolant, modern installation of air heating. Ventilation of entrusting a flow and energy-efficient supply and exhaust vent. To combat the extreme summer heat is used in all windows and mobile air conditioners, split-and multi-system, high-performance systems such as VRF. Among the new HVAC equipment for the home country account customers are increasingly attracted to the chiller-fankoylovye system, which will be discussed. Scope of these devices - modern cottages ranging from 400 to 2500 m2 or more rooms with very different purposes. In such houses the chiller-fankoylovye system, coupled with forced ventilation, and provide full air conditioning and heating, allowing you to cancel the installation in the room heating devices of traditional design. Equipment fankoylovoy chiller-system together with installation and commissioning is not cheap: from 20-30 thousand rubles. per 1 m2 klimatiziruemoy area, and even more. Price of the entire complex HVAC equipment to the cost of ventustanovki, boiler equipment, etc. for a small home is often passes for 45 thousand rub./m2. But the comfort of the rooms heating system fully loaded with proper design and installation support is really high. For example, in the warm season the temperature in the dwelling is +22 ... +24 ° C, the mobility of air masses - no more than 0,25 m / sec. In the winter, and spring and autumn, when the system is in heating mode, the parameters are somewhat different: 20-22 ° C and 0,1 -0.15 m / sec. Fresh air is supplied at the rate of 20 to 60 m2 / h per person. This ensures continuity (maintenance during the day a user-defined values ??to within + / - 1 ° C) and uniformity of air temperature in the house (0,5 ° C per meter height of the room), regardless of its fluctuations on the street! Chiller-fankoylovaya system: advantages and disadvantages of Chiller-fankoylovaya system is very similar to the heating system a country house with forced circulation of coolant. Summer in its pipes circulates chilled coolant (usually - regular water), which is brought to condition (+7 ° C) water-cooling machine (chiller). In the transition model of reversible chiller heat the water to 45-60 ° C, however, such devices can operate only as long as the outdoor temperature drops below +5 ° C (for devices adapted to cold - to-10 ...- Jan. 5 ° C). At lower temperatures, the chiller is turned off, and for heating the coolant start the second most important element of the system - the boiler on the gas, liquid fuels, electricity or other weather-independent heat generator. With the cooling pump (heated) water is forced through the pipes through all the rooms. Cooling or heating of the last exercise fan coil units - analogs convector heating, but with somewhat more sophisticated rail, ventilator, which provides accelerated heat transfer, and system automation. To guarantee the supply of rooms with clean air to fan coil units with air supplied fresh, free from dust and heated to not less than +16 ° C air. Supply plant mounted in the technical area, often - next to the garage or attic. An extract made from each room through the exhaust duct connected to a single exhaust fan, located in the technical area. In addition to fan coil units, as consumers of hot and cold water from the chiller can serve exchangers inlet ventilation system as well - as desired - heat exchangers to heat water in the pool water to hot water systems and other household needs. The main advantage of the system with a chiller and fan coil units - its ecology (provided that as a coolant for penetrating the house pipes circulating water). Even with the mechanical damage of a pipeline moisture only spoil the finish. But the breakdown of freon communications, integrating indoor and outdoor units' Multi-system or other similar climatic equipment, it can cause excess of the maximum permissible concentration (MPC) of freon in the air room, which is unsafe for human health. Yes, and find and fix water leaks easier than the leak of Freon (Freon because - it is gas), which is also often necessary to replace completely, even after a small leak, which is expensive (a large freon installations - its tens of thousands of rubles). Chiller-fankoylovoy system of forces simultaneously handle up to hundreds, and potentially - and to thousands of rooms of any size, just enough to power pumps, pumping coolant, and the quality of heat insulation of pipelines did not disappoint. At the same time limiting the distance between the chiller and fan coil units is not limited - all the noisy machinery (for domestic models - from 65 to 90 dB (A) can be taken away from the house or hide it deep underground, so as not to be heard in living rooms or at night, any day. Adjustments room temperature by varying the rate of heat transfer in a fan coil units, according to the individual needs of the household, and if necessary, each fan coil at any time easily turn off. Ciller-fankoylovuyu system can be installed and running even in the partial power over time ( say, as more families) gradually increasing the number of rooms of the consumer. The disadvantages of the "chiller-fan coil units" should be attributed considerable dimensions of the internal units. When installing communications between the chiller and fan coil units in the walls of the house will need to cut quite a lot of indent, passes through the overlap (more than installing batteries), and it should be done prior to finishing. Certain difficulties may arise when installing chiller - because of its significant size and weight, as well as during operation of the device, due to the need for regular maintenance, and high (20 % or more compared with freon MultiSystem) energy consumption. Then we talk briefly about the different types, advantages and disadvantages of chillers and fan coil units. Chillers Chiller - water-cooled machine. By design this device has much in common with a domestic refrigerator (same vapor compression refrigeration unit inside, including compressor, evaporator, condenser and expansion valve), with the only difference being that the latter paves the way cool at the time of food storage, and chiller - pumped through it pump water or saline. The water is heated in a reversible model occurs as a result of changes in configuring the machine and reversing refrigeration cycle, with the chiller cools the environment, warming the coolant flow. chiller power is different (from a few to thousands of kilowatts), and they differ on a design (with built-in or remote condenser), type of cooling condenser (air or water) connection diagrams, etc., Chillers, air-cooled condensers and axial fans designed for outdoor installations, the open air. Examples of such devices may serve as ALFA / HP 81 (Italy), P-03N1-5N from the AL-KO (Germany) and others to ask such chillers in the areas not operated at some distance from the house. For the price of such equipment - the most democratic among the chillers. But the model of an axial fan is not without drawbacks. Requires the seasonal discharge of water from the evaporator (not frozen in winter) or the use of bypass refrigeration circuits cottage with ice-solutions (ethylene glycol, propylene glycol) as an intermediate coolant circulating on line over the "street" and unheated room cottage loop pipes. In this case, "houses" the network is connected to fan coil units, can be filled with water, and heat transfer between it and the outer loop - carried out via a plate heat exchanger is mounted in a heated technical area, for example in the boiler room. If the chiller with air cooled condenser will be mounted next to the cottage or on the roof, it's worth buying a model in Low Noise performance. Through the use of sound insulation compressor, reducing the rotational speed of fans and change the configuration of the blades is achieved by a significant reduction in sound power level of the unit (on some devices - up to 65 dB (A). But the cost and size of plants compared to "naked" unit of the same cooling capacity increases by 10-30 %. chillers, air-cooled chiller and centrifugal fans put indoors, say in a basement or ground floor cottage. Examples of such devices can become a model 30RA021 from CARRIER, RAE 191 of EMICON and several others. The air for cooling the condenser and the discharge of heat into the environment by air ducts, intake and exhaust grid is placed on the foundation of the house. To move the air used centrifugal fans with high static pressure (up to 250 Pa). The main advantages of chillers with centrifugal fans - "hidden" setting, the possibility of organizing a year-round operation mode cooling at all temperatures, outside air (may require, even in winter, if the house is oversaturated with electronics). Disadvantages - requires considerable acreage units, the additional capital cost of the ventilation network. Chillers with remote condensing unit (compressor-evaporator units) are executed, as a rule on the basis of chillers with a water condenser. put them inside the building, such as a small technical room in the basement, and connected with the condenser outside installation, located, for example, in the bushes near the fence, the system freonoprovodov. That's the way devices lineups CWP-RC and CWP-HP and other companies WESPER Benefits chiller with remote condenser: do not require the use of a two-circuit cooling system, as is the case with the remote from the house chillers with axial fans and air-cooled condenser. The disadvantages of chillers with remote condensing units include a limited distance between the compressor -IS-paritelnym unit and condenser unit. The package chillers, air-cooled condenser capacity of up to 100-200 kW often include hydro. It is composed of circulation pump, expansion tank and storage tank, safety valves, flow switch, and drain vozduhospusknoy valves, gauges, etc. These chillers require only connecting pipelines from the mounted in a cottage fankoylovoy network and power supply. Devices that allow the use of heat released during condensation of the refrigerant to heat water for technical purposes, say for a pool, called chillers with heat recovery (model ERAN / P R290 from CLIMAVENETA). On the Russian market chillers deliver AERMEC (UK), AIRWELL (France), CARRIER (USA / France), CIAT (France), CLIVET (Italy), DAIKIN (Japan), MAQUAY (France / Italy), RC GROUP (Italy), RHOSS (Italy), TRANE (USA / France), YORK (USA / Italy), BLUE BOX (Italy), etc. The cost of monoblock chiller with built-in liquor production capacity of 30 kW is about 350 - 400 thousand rubles. The device will be created directly to your cottage, on request, to wait for its delivery will have from 30 to 60 days. Fan Coils Fan coils, or as they are called, fan coils, provide cleaning and adjustment of air temperature in the rooms. The power of these devices can be up to 1 5 kW or more, but in country houses set in the main fan coil units at 1,5-6 kW. In appearance fancoils well be confused with the indoor units of split-systems. as chillers and heaters in one person in cottages are used as a rule, floor models, which are assembled under the windows. However, sometimes use wall and ceiling fan coil units. In large rooms such as gymnasiums, spacious home theater, etc., in podshivnoy ceiling (if available 350-400 mm in height between the false ceilings and floor slabs) was inserted cassette fan coil model. Click here to install and duct fan coils. With air-conditioned spaces, they share the network supply and exhaust ducts. Inside fancoil typically set one or two heat exchangers - for cooling and heating. Fan coils with two heat exchangers is justified to buy in when in different rooms at the same time may be needed to heat and cool the air (this happens in the spring, with strong insolation, when the rooms on the sunny side of the house is hot, and the shaded - cool). In this case, fan coil units at the same time served and hot water from the boiler, and cold from the chiller, and the user has already decides - what is needed for him at the moment: cool or heat the room. Fan coils with a heat exchanger fed as follows: Cold water - only in summer, hot - in the transitional period and winter. mix with fresh (outdoor) air in the fan coil is carried out using a special camera attached to the inlet ventustanovke through the duct (eg, such as in the models FWH3C from DAIKIN, 42 NM from CARRIER, etc.). When you fan coil units for residential, especially for the bedrooms, the first thing you should pay attention to the noise characteristics of the equipment - because inside they have a rather noisy fan. Low noise fan coil units produced in wall and in floor design. The level of noise is indicated in the promotional and informational materials manufacturing techniques usually for the minimum fan speed (note in the maximum cooling capacity, he may increase 1,5-2 times). Very effective and low-noise fan coil units (about 21 dB (A) made by company CHILLER (Finland Line Studio Line). interesting from this standpoint fan coil units are supplied in Russia DAIKIN (model FWV-BA6V1 / FWV-BAF6V1, minimum noise level of 20 dB (A), AERMEC (UK, floor model Omnia HL1 0, from 22.5 dB (A), etc. The Office fan coil units is carried out manually or automatically, a thermostat. In winter, fan coil units often serve the needs of home in the heat without a fan. Producing fan coil units are usually the same companies that produce chillers, why not repeat it here. fancoil Price for 2 kW range from 15 to 34 thousand rubles. For pre- assess future costs of fan coil units, we can assume that 1 kW of power of these devices is sufficient for 10 m2 air-conditioning facilities. Who will put? Unfortunately, in one article it is impossible to detail all the elements of chiller-fankoylovyh systems, and even more so - to give comprehensive advice on equipment selection and installation. If you wish to purchase and mount a similar technique in his cottage, have a responsible approach to finding the design of the installation company. specialists able to develop and implement a quality system, even for big money, hard to find. The company is desirable to choose of those with licenses for all works associated with the installation of HVAC equipment, as well as appropriately trained installers.