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An air cooled chiller is a machine that removes heat from a liquid via a vapor-compression cycle. Air cooled chillers are directly cooled by ambient air being mechanically circulated directly through the machine's condenser coil to expel heat to the atmosphere. The two types of air cooled ...
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Air distribution devices control the direction, height, and amount of airflow delivered to a space. These devices, are often called registers, grilles or diffusers can be fixed or adjustable.
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The Air Turnover System uses a high volume, low velocity, air-circulation system to distribute conditioned air to a large open space. We say "conditioned air" because the air in the space may be heated, cooled, humidified, dehumidified or supplemented with outside, fre...
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Constant volume with reheat systems provide each zone with a fixed airflow rate at a constant temperature (typically 55°F). The airflow rate is based on the design cooling load for the given zone. The ducting and air handling system are sized to match heat from equipment, lights, exte...
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Cooling towers are heat removal devices used to transfer process waste heat to the atmosphere. Cooling towers may either use the evaporation of water to remove process heat and cool the working fluid to near the wet-bulb air temperature or rely solely on air to cool the working fluid to near ...
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In a typical dry desiccant system, the desiccant is mounted on a rotating wheel. As the wheel turns, the desiccant passes alternately through the incoming process air where the moisture is adsorbed and through a “regenerating” zone where the desiccant is dried and the moisture expel...
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(ERV) is the energy recovery process of exchanging the energy contained in normally exhausted building or space air and using it to treat the incoming outdoor ventilation air in residential and commercial HVAC systems. The benefit of using energy recovery is the ability to meet the ASHRAE ven...
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Fancoils have a fan and one coil (two-pipe) or two coils (four-pipe) in small units distributed throughout the building. Fancoils are dedicated to each zone and are matched to the zone design load. Four-pipe fancoil systems allow some zones to be heated while other zones are being cooled. Two...
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Geothermal water source heat pumps are a modified version of a Boiler/Tower system. Geothermal units use either the ground or ground water as a heat sink for cooling and a heat source for heating. Geothermal systems do not require a boiler or a cooling tower to operate.
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- Variable Volume
- Two Position
- Constant Volume
- Usage-Based Control
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Custom Engineered chilled water and/or hot water generation systems. These systems are ETL Certified and Pre-Tested prior to leaving the factory. They can include chillers, boilers, pumps, heat exchangers, MCC’s, air separators, expansion tanks, chemical water tr...
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Custom-engineered chilled water, condenser water or hot water pumping systems in a complete packaged skid.
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For large chillers or where more than two chillers are needed, primary/secondary (decoupled) piping systems are often used. To reduce installation and operating costs, it is best to vary the system flow so that the chilled water delta T remains constant during partial load conditions ...
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Variable air volume (VAV) with reheat systems provide conditioned air to each zone at a constant temperature, typically 55°F. The amount of air varies to match the heat gain from equipment, lights, exterior and people. At part load conditions, VAV systems supply only the neces...
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The control valve at the cooling loads are two-way type so the chilled water flow varies with the cooling load. The primary pump for the chillers circulates the chilled water throughout the building. The water flow varies through the chillers as well. There is a bypass line to maintain min...
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Vertical self-contained systems are based on speciallydesigned air handling systems spread throughout the building with integral air conditioning. Each unit has multiple water-cooled DX refrigeration circuits. Air distribution can be constant volume or variable air volume (VAV). VAV is the mo...
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VRF or VRV = Variable Refrigerant Flow or Volume. This refers to DX air conditioning systems that utilize VFD (variable speed) compressor technology to modulate the flow of refrigerant between condensing unit (outdoor unit) to the fan coil/air handling unit (indoor unit).
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In our business, a water cooled chiller is a machine that removes heat from a liquid that is coming in and going back out to a process. The process could be a commercial office building, hospital, laboratory, library, church, hotel, industrial or manufacturing cen...
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Water Source Heat Pumps (WSHPs) are individual air conditioner/heat pumps dedicated to each zone. Each WSHP has a refrigeration circuit within the unit that includes a reversing valve. One of the heat exchangers is refrigerant –to-water, while the other is refrigerant-to-air.
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