AIR CONDITIONING utilizes heating, ventilation and air conditioning (HVAC) chillers that are refrigeration systems providing cooling for industrial and commercial applications. They use water, oils or other fluids as refrigerants. HVAC chillers include a compressor, condenser, thermal expansion valve, evaporator, reservoir, and stabilization assembly.
PLANNED MAINTENANCE: We can help you save money by monitoring your chiller equipment.
CHILLER REPAIRS & UPGRADES: We can repair your Chillers at Minimum Cost. Our engineers are available for call outs 24/7. New Legislation means that all Chillers will no longer be able to use R22 Fluids; so it makes sense to upgrade now to avoid more costly upgrades when the new regulations come into place. (The use of R22 as a 'top up' for maintenance between 2010 - for virgin fluid and 2015 - for recycled fluid. This is of crucial importance for many companies and means that all users of R22 refrigerant systems need to consider alternative refrigerants or purchase new equipment.
(www.csgroupinstallations.co.uk/fluid_replacement.htm)
Compressing the refrigerant creates a high pressure, superheated gas that the condenser air-cools to a warm liquid. The thermal expansion valve (TXV) releases refrigerant into the evaporator, converting the warm liquid to a cool, dry gas. Often, a hot gas bypass is used to stabilize the cooling output by allowing the hot gas to warm up the evaporator. This causes a reduction in cooling efficiency, but stabilizes the chilled water temperatures. When water is pumped from the reservoir to the compressor, the chilling cycle begins again.
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HVAC Chillers vary in terms of condenser cooling method, cooling specifications and process pump specifications. There are several condenser cooling methods. Air-cooled devices use a fan to force air over the condenser coils. By contrast, water-cooled devices fill the condenser coils with circulating water. Remote air or slit systems locate the main part of the chiller in the application area and position the condenser remotely, usually outdoors.
Cooling specifications for HVAC Chillers include cooling capacity, fluid discharge temperature, and compressor motor horsepower. Typically, cooling capacity is measured in kilowatts or tons of refrigeration. Compressor motor horsepower is a nominal value. Process pump specifications include process flow, process pressure, and pump rating.
HVAC Chillers include a local or remote control panel
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with temperature and pressure indicators. Some devices include microprocessor controls, emergency alarms, and an integral pump. Others are designed for outdoor installation and can be mounted on rooftops or building exteriors. Modular systems can be configured in different ways based on application requirements.
For example, in air conditioning systems, HVAC chillers are used to pump water to coils in different parts of a building. Other applications for HVAC chillers include the cooling of plastics, printing equipment, laser cutting machines, and large-scale medical devices such as magnetic resonance imaging (MRI) equipment.
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Planned Maintenance can help you save money by monitoring your chiller equipment.
CS GROUP™ maintenance engineers approach every clients installation on an individual basis taking the time to understand fully your HVAC system and its throughput, heat load, demand etc.
Only after due consideration will we make the recommendations for repair, replacement, refrigerant replacement or other enhancement. We can provide up to date information on new refrigerants, and recommend the legal necessary upgrades, water treatment and other protection for your cooling system.
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Call us or complete our enquiry form. Contact us
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