A chiller is the most important component of any central air conditioning system, often referred to as the heart of the system. There are 2 main types of chillers; centrifugal and absorption. These come in different shapes, sizes, capacities and brands.
Guide to checking and selecting Chillers
A chiller is a machine that removes heat from a liquid by lowering the temperature of the water before circulating through cooling devices such as fan coils and air conditioning units, thus cooling the air. Chillers come in two main types based on their internal function, centrifugal and absorption, which are available on both industrial and residential scales, which will be discussed shortly.
Centrifugal Chiller (Vapor Compression)
Vapor compression chillers are categorized into two groups based on their operation: water-cooled chillers and air-cooled chillers.
Water-cooled chillers have the advantage of being less expensive compared to air-cooled chillers. On the other hand, air-cooled chillers offer the ability to operate in humid weather conditions, the option for installation on roofs, balconies, or any outdoor space, and no requirement for a cooling tower or water consumption.
The types of compressors used in vapor compression chillers are:
Reciprocating compressors (piston)
Screw compressors
Scroll compressors
Centrifugal compressors (New-generation)
Absorption Chiller (Vapor Absorption)
Absorption chillers, which require a heat energy source, are categorized into five types:
Warm water absorption chillers
Hot water absorption chillers
Direct flame absorption chillers
Steam absorption chillers
Energy recovery absorption chillers
Vapor absorption chillers are also divided into two groups based on internal operation: single effect and double effect.
The primary components of vapor absorption chillers consist on a condenser, generator, absorber, evaporator, solution pump, refrigerant pump, lithium bromide, control valves, thermostats, electrical panel, and the control circuit.
The Ultimate Chiller Buyers Guide
As today, achieving the desired temperature in various environments (homes, offices, etc.) requires advanced equipment to provide cooling during hot seasons. Chillers are among these essential and advanced devices. On the specialized website of the DamaTajhiz HVAC group, comprehensive information about the various types of chillers are available for you, our valued visitors. This information will assist you in making the best decision when purchasing a chiller.
Approximate Calculation of a Chiller Capacity
To determine the chiller capacity needed for a project is crucial to consider both the nominal and actual capacity of the chiller, particularly concerning the average temperature (outdoor) of the hottest days of summer in the chiller’s operational area.
Typically, facility experts calculate the capacity of a chiller for each project by considering factors such as:
Geographical conditions (ambient temperature)
The average temperature of the hottest days of summer (outdoor temperature)
Altitude above sea level
Relative air humidity
Building usage (average indoor temperature)
Building materials and design
Building orientation with the sun
Number of floors and building surface area
The number of occupants and electrical equipment inside the building
These factors help determine the volume of cold water needed and the appropriate reliability coefficients for the chiller's performance.
For an initial estimate (phase 1 electricity) of the required chiller capacity for residential and office buildings in climates similar to Tehran, Mashhad, Karaj, Isfahan, Erbil, Kabul, Sulaymaniyah, Halba, and other cities with comparable conditions, you can consider a nominal capacity of 1 ton of refrigeration per 30 square meters of the building.
Before finalizing the capacity calculation and selecting the required chiller for your project, consult with the experts at DamaTajhiz HVAC Group for accurate cooling load calculations. Our team is always available to assist you.
Buying a Chiller
On the DamaTajhiz HVAC website, you can find technical information for either water or air chillers in various reputed brands with their main guarantee (currently only available in Iran) as we aim to provide the best options for optimal and smart purchases.
Price & Payment of a Chiller
There are various effective factors that affect the price of a chiller. The most important of which are the type of the chiller (air-cooler or water-cooled – vapor compression or vapor absorption), capacity and other technical specifications, manufacturing quality, and the brand of the chiller.
Additionally, the cost of the device installation varies depending on capacity, specific project conditions, and workers' fees.
All chillers featured on the DamaTajhiz HVAC website have product identification ID and competitive prices, with discounts already included.
Things You Need to Know Before Buying a Chiller
Before purchasing the desired chiller, consider its capacity, dimensions, transportation method, and installation feasibility in the engine room.
It is also crucial to consider adequate lateral and longitudinal spacing for annual maintenance of the condenser, evaporator, and chiller compressor and any potential repairs. Adhering to these intervals is the key to ensuring routine maintenance and keeping chillers operating at optimal performance levels.
Dear users:
Reading the stated information above in order to obtain additional information to purchase the types of chillers. You can also contact the experts of the AC equipment by dialing one of the extension numbers 117-119-120-126-317 in order to get advice or just to ask your questions.
Dear users, while thanking you for the trust you put in the technical opinions of air conditioning sales experts of DamaTajhiz, it should be noted that the choice of the desired product brand based on history, brand strength, service and product price is ultimately determined by the buyer.
Also, taking into account that the Damatajhiz HVAC Group is one a member of the main group specializing in heating equipment, as the first and the most viewed authority for selling air conditioning equipment, as well as an official member of the heating and air conditioning equipment sellers' union. Therefore it is now safe to say that we provide all kinds of chillers in the Middle East region. Therefore, if you are from the same country in the region and you need a cooling towers, please place your order with our sales experts team. Product warranty and a reasonable price are included.
DamaTajhiz's HVAC Group; The top construction equipment manufacturers and prices
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The presence of DamaTajhiz's HVAC Group in international exhibitions of construction facilities and cooling and heating systems
In addition to a valid business license from the heating and air conditioning trade association, DamaTajhiz's HVAC Group has an electronic trust symbol and started its store site in 2004 in the head office of Tehran.
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