Until the 1990s, the refrigerants were often chlorofluorocarbons such as R-12 (dichlorodifluoromethane), one in a class of several refrigerants using the brand name Freon, a trademark of DuPont. Its manufacture was discontinued in 1995 because of the damage that CFCs cause to the ozone layer if released into the atmosphere. One widely-adopted replacement refrigerant is the hydrofluorocarbon (HFC) known as R-134a (1,1,1,2-tetrafluoroethane). R-134a is not as efficient as the R-12 it replaced (in automotive applications) and therefore, more energy is required to operate systems utilizing R-134a than those using R-12. Other substances such as liquid R-717 ammonia are widely used in large-scale systems, or occasionally the less corrosive but more flammable propane or butane, can also be used.

Since 2001, carbon dioxide, R-744, has increasingly been used, utilizing the transcritical cycle. In residential and commercial applications, the hydrochlorofluorocarbon (HCFC) R-22 is still widely used, however, HFC R-410A does not deplete the ozone layer and is being used more frequently. Hydrogen, helium, nitrogen, or plain air is used in the Stirling cycle, providing the maximum number of options in environmentally friendly gases. More recent refrigerators are now exploiting the R600A which is isobutane, and does not deplete the ozone and is friendly to the environment.

Air source heat pump are relatively easy (and inexpensive) to install and have therefore historically been the most widely used heat pump type. However, they suffer limitations due to their use of the outside air as a heat source or sink. The higher temperature differential during periods of extreme cold or heat leads to declining efficiency, as explained above. In mild weather, COP may be around 4.0, while at temperatures below around −8°C (17°F) an air-source heat pump can achieve a COP of 2.5 or better, which is considerably more than the COP that may be achieved by conventional heating systems. The average COP over seasonal variation is typically 2.5-2.8,[9] and high efficiency model in Japan over 6.0(2.8kW) written in the IPCC 4th Working Group III report chapter 

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Character distinguish from similar products
• (1)High efficiency with R410A refrigerant,Japanese brand compressor and optimized design.
• (2)Intelligent design for easy maintenance of whole unit and replacing filter.
• (3)Special design for cold winter and strong heating in super low temperature as north Europe.
• (4)Phone call remote control provide the most convenient operation for the consumer.
• (5)Wide angle of air flow, Auto swing assure the comfortable feeling.
• (6)Elegan appearance for beautiful decoration
• (7)Self trouble diagnosis for convenience of maintenance and trouble solvissng.

Floor-ceiling Technical Parameter
Item	Model	18K(230V)	24K(230V)	28K(230V)	32K(230V)	32K(380V)	45K(380V)	60K(380V)
Cooling capacity	W/h	5191.5	7233	7806.4	8294.7	8294.7	11940
Heating capacity	W/h	5338.4	7750	8605.8	8853	8853	13805
EER	W/W	2.81	2.94	2.55	2.83	2.83	2.45
COP	W/W	2.99	3.33	3.2	3.3	3.3	2.96
Pated input power/current w/a	Cooling	1847/6.34	2460/10.7	3.64/13.7	2934/13	2934/4.9	4867/8.4
	Heaing	1787/8.13	2331/10.14	2686/12.2	2650/11.8	2650/4.6	4702/8.2
Indoor Unit
Power Supply	880	1450	1450	1450	1450	1450	1800
Air quantily(m3/h)	81/66/58	115/100/90	115/100/90	115/100/90	115/100/90	115/100/90	171/167/160	215/200/185
Fan power(Kw)	0.369/0.325 /0.294	0.55/0.5 /0.42	0.55/0.5 /0.42	0.55/0.5 /0.42	0.55/0.50 /0.42	0.788/0.768 /0.735	215/200 /185	0.955/0.88 /0.821
NoiseB(A)	≤42	≤45	≤45	≤45	≤45	≤45	≤48	≤48
Net dimension (L*W*H)(MM)	900*245 *680	1290*245 *680	1290*245 *680	1290*245 *680	1290*245 *680	1290*245 *680	1670*245 *680	167*245 *680
Net weight(Kg)	25	40	40	40	40	40	45	45
Packing dimension (L*W*H)(MM)	995*765 *311	1375*765 *311	1375*765 *311	1375*765 *311	1375*765 *311	1375*765 *311	1760*765 *311	1760*765 *311
Gross weight(Kg)	30	45	45	45	45	45	50	50
Outdoor Unit
Power Supply	230v/1/50	230V/1/50	230V/1/50	230/1/50	230V/1/50	380V/3/50	380V/3/50	380V/3/50
Retrigerant	R-410A
Note: 1.Nominal cooling conditions:indoor dry bulb temperature is 27?,indoor wet bulb temperature is 19?, outdoor dry bulb temperature is 35?,outdoor wet bulb temperature is 24?. 2.Nominal heating conditions:indoor dry bulb temperature is 20?,indoor wet bulb temperature is 15?, outdoor dry bulb temperature is 7?,outdoor wet bulb temperature is 6?.

Reprinted from: China palm's Floor ceiling air conditioner

Horizontal Air Conditioner

1.Pre-compact type unit (easily convertible into split units)
2.Low-profile design for installation in suspended ceiling
3.Copeland scroll Compressor high efficiency and reliability.
4.Ease of installation and flexibility
5.Wide range of air flow and pressures available
6.Programmable electronic controller for easy handling
7.Wide range of application (up to 49C outside temperature cycle in cooling)
8.Sockets for external maintenance and service

Model		H-048-410	H-060-410	H-072-410	H-090-410	H-110-410
Capacity	Houting w	10.400	13.150	15.130	19.090	22.620
		12.100	15.300	17.600	22.200	26.300
	Cooling w	10.750	13.760	15.910	19.950	23.390
		12.500	16.000	18.500	23.200	27.200
Input power and current	Frio w	5.100	6.800	7.400	8.950	10.850
	Cator w	4.750	6.000	6.800	8.400	10.400
	H Amp	14.1/14.0	18.0/17.6	18.8/18.4	17.8/17.4	21.1/20.4
Voltage		400v/11/50hz
Dimensiones(Largo*Alto*Fondo) mm		1.410*575*1.420			1.650*625*1.790
Net weight Kgs		263.000	276.000	284.000	403.000	410.000
Dimensiones(Largo*Alto*Fondo) mm		1.410*575*565
Circulation Air		2.400	3.300	3.300	4.400	4.800
Presion Estatica Disponible		7	9	9	11	13
Net weight Kgs		87	92	94	118	120
Dimensiones(Largo*Alto*Fondo) mm		1.410*575*850
Circulation Air		3.800	4.950	4.900	6.400	7.200
Presion Estatica Disponible		5	5	6	6	7
Net weight Kgs		176	184	190	285	290
Compressor type		Scroll	Scroll	Scroll	Scroll	Scroll

We,China palm,also supply Ceiling air conditioner,cassette air conditioner,floor fan coil,air to water heat pump etc.
Welcome to visit our website, http://www.china-heat-pump.com, to get more infomation about all types Air Conditioner


Reference from: Horizontal Air Conditioner

  What's Air conditioning?

  From Google,we can learn that, air conditioning is a system that keeps air cool and dry.

  Air conditioning refers to the cooling and dehumidification of indoor air for thermal comfort. In a broader sense, the term can refer to any form of cooling, heating, ventilation or disinfection that modifies the condition of air. ^{An air conditioner (often referred to as AC or air con.) is an appliance, system, or mechanism designed to stabilise the air temperature and humidity within an area (used for cooling as well as heating depending on the air properties at a given time), typically using a refrigeration cycle but sometimes using evaporation, most commonly for comfort cooling in buildings and motor-cars.}

  ^{The concept of  air conditioning is known to have been applied in Ancient Rome, where aqueduct water was circulated through the walls of certain houses to cool them. Similar techniques in medieval Persia involved the use of cisterns and wind towers to cool buildings during the hot season. Modern  air conditioning emerged from advances in chemistry during the 19th century, and the first large-scale electrical  air conditioning was invented and used in 1902 by Willis Haviland Carrier.}

^{Refrence: Wiki, Google}

   An air source heat pump can provide efficient heating and cooling for your home, especially if you live in a warm climate. When properly installed, an air source heat pump can deliver one-and-a-half to three times more heat energy to a home than the electrical energy it consumes. This is possible because a heat pump moves heat rather than converting it from a fuel, like in combustion heating systems.

   Although air source heat pumps can be used in nearly all parts of the United States, they do not generally perform well over extended periods of sub-freezing temperatures. In regions with sub-freezing winter temperatures, it may not be cost effective to meet all your heating needs with a standard air source heat pump.

  A heat pump is a machine or device that moves heat from one location to another location  using mechanical work. Most heat pump technology moves heat from a low temperature heat source to a higher temperature heat sink. Common examples are food refrigerators and freezers, air conditioners, and reversible-cycle heat pumps for providing thermal comfort.

  Heat pumps can be thought of as a heat engine which is operating in reverse. One common type of heat pump works by exploiting the physical properties of an evaporating and condensing fluid known as a refrigerant. In heating, ventilation, and air conditioning applications, a heat pump normally refers to a vapor-compression refrigeration device that includes a reversing valve and optimized heat exchangers so that the direction of heat flow may be reversed.
 

China Palm are mainly researching and manufacturing heat pump energy-saving products and commercial air conditioners. With professional technicians team of 20 years experience on air conditioner and heat pump, we are designing the best energy saving products to make full use of the energy from the recyclable source such as air, water, ground and etc.. It brings a revolution to the energy-saving industry. With advanced production lines and strict trained quality control staff, we are manufacturing the most reliable products.  Equipped with the most advanced technology, facility and management, China Palm are expanding heat pump and air conditioning business world wide.

 

 

Duct Air Conditioner

Split-type air conditioner prices, central air-conditioning to enjoy.
Aux Air-conditioner duct system design optimization, so to minimize the machine cost, consumers spend almost as long as the split-type air
Transfer price, you can enjoy the enjoyment of central air-conditioning.
Applicable to places
Applicable to office buildings, shopping malls, hotel lobbies, restaurants and other places.
Capacity: 12.5 ~ 55KW.
Advantages
Remote power supply system, a free air delivery configuration, and style is able to cope with the need to choose the decoration; the installation of freedom, according to the needs of the business environment, air-conditioning can be very long with 50 meters refrigerant piping, piping can be adapted to a variety of needs. Mute material the use of machine design, greatly reduce air noise; to the introduction of fresh air to improve air quality.

Summary
The purpose of the project was to build a low energy and low cost prefabricated house without compromising the comfort. Due to the overall reduced energy consumption in low energy houses the proportion of the heat required for DHW increases from 30% to 40%. This sets new requirements for a heating system. In this residence there are two air to water  heat pumps: one for heating (from October to April) and the other for DHW (DHW; all year round).

The former uses outdoor air and the latter indoor exhaust air as its heat source. The SPF of the 4.6 kW heat pump for space heating is 3.0. If auxiliaries such as fans for heat recovery and standby losses of the water heater are considered as well the SPF drops to 2.0.

China Palm are mainly researching and manufacturing heat pump energy-saving products and commercial air conditioners

Question: What is a heat pump?

Answer: Heat pumps extract low temperature energy from the environment and increases its temperature for heating purposes. Heat pump efficiencies are normally quoted as the coefficient of performance of the system, these are typically in the range 3 to 5. In other words, extracting heat from renewable sources requires just 1kW of electrical input in order to generate 3kW to 5kW of heating output. Heat pump systems therefore, are 3 to 5 times more efficient than fossil fuel boilers and are more than capable of warming a house completely, even during the lowest winter temperatures. The increasing popularity of these heating systems is reflected by their overwhelmingly successful application in the cold climates of Scandinavia.

China Palm supplies professional heat pumps.

Properly controlling moisture in your home will improve the effectiveness of your air sealing and insulation efforts, and vice versa. Thus, moisture control contributes to a home's overall energy efficiency.

The best strategy for controlling moisture in your home depends on your climate and how your home is constructed. Before deciding on a moisture control strategy for your home, you may first want to understand how moisture moves through a home.

Moisture control strategies typically include the following areas of a home:

    * Attics
    * Foundation
          o Basement
          o Crawl space
          o Slab-on-grade floors
    * Walls.

In most U.S. climates, you can use vapor diffusion retarders in these areas of your home to control moisture.

Proper ventilation should also be part of a moisture control strategy.

China Palm mainly reseach and manufacture heat pump energy-saving products and commercial air conditioners. We are professional!

Most of people can get extremely hot and very few people can get by without some form of cooling in summer.

To install air-conditioning is a major purchase, hence it is worth making sure that your money is spent as wisely as possible. This advice applies for residential (home) room air conditioning units(Either reverse cycle or cooling only). Reverse cycle air conditioners are also sometimes called heat pump air conditioners or heat pumps. For offices and other commercial air conditioning, visit commercial air conditioning.

When choosing an air conditioning system, the following are the main criteria to consider:

• Is heating required?
• Comfort level
• Purchase cost
• Running costs
• Noise levels
• Reliability
• Air conditioner brand
• Confidence in the contractor
• Outdoor unit location

China Palm are mainly researching and manufacturing heat pump energy-saving products and commercial air conditioners. Welcome to visit our website to get more information.