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A fan coil unit (FCU), also known as a Vertical Fan Coil Unit (VFCU), is a device consisting of a heat exchanger (coil) and a fan. FCUs are commonly used in HVAC systems of residential, commercial, and industrial buildings that use ducted split air conditioning or central plant cooling.
The three major functions of heating, ventilation, and air conditioning are interrelated, especially with the need to provide thermal comfort and acceptable indoor air quality within reasonable installation, operation, and maintenance costs. HVAC systems can be used in both domestic and commercial environments.
The first of the cooling load factors used in this method is the CLTD, or the Cooling Load Temperature Difference. This factor is used to represent the temperature difference between indoor and outdoor air with the inclusion of the heating effects of solar radiation. [1] [5] The second factor is the CLF, or the cooling load factor.
This is a vast improvement from traditional active cooling units which have an overhead of 30-70%. [6] However, this novel and complicated method requires careful and expensive planning from mechanical engineers, who must work closely with the engineers designing the electrical and plumbing systems for a building.
Common area maintenance charges (CAM) are one of the net charges billed to tenants in a commercial triple net (NNN) lease, and are paid by tenants to the landlord of a commercial property. A CAM charge is an additional rent, charged on top of base rent, and is mainly composed of maintenance fees for work performed on the common area of a property
HVAC (heating, ventilation, and air conditioning) is a major sub discipline of mechanical engineering. The goal of HVAC design is to balance indoor environmental comfort with other factors such as installation cost, ease of maintenance, and energy efficiency. The discipline of HVAC includes a large number of specialized terms and acronyms, many ...
Al Manzano, founder of A&M Refrigeration Co., cools his hand on the vent fan outlet on an air conditioning unit on the roof of an apartment building in North Hollywood.
A heater coil placed after the cooling coil re-heats the air (therefore known as a re-heat coil) to the desired supply temperature. This process has the effect of reducing the relative humidity level of the supply air. In colder climates, where winter temperatures regularly drop below freezing, then frost coils or pre-heat coils are often ...