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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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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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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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An evaporative chiller is a machine that removes heat from a liquid via a vapor-compression cycle. Evaporative cooled chillers are cooled by ambient air and a mist of water is sprayed across the condenser coil to aid in the cooling process. This addition of mist provides a more efficient co...
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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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Operating Theatres/Suites demand airflow performance that minimizes the possibility for infection during a procedure. The Howorth ExFlow Ultra Clean Ventilation System is capable of achieving a Class 10 (ISO 4) surgical environment.
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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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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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