風暖系統利用空氣作為熱交換介質，利用 風管 （ 英語 ： Duct (HVAC) ） 來輸送熱空氣送到室內。若天氣溫暖甚至炎熱時，空調系統也可以使用相同的風管。

Heating, ventilation, and air conditioning (HVAC) is the use of various technologies to control the temperature, humidity, and purity of the air in an enclosed space. Its goal is to provide thermal comfort and acceptable indoor air quality.

英熱單位 (British thermal unit，簡稱BTU) 是一個傳統英制的能量或熱量單位，約等於 1,055 焦耳，是將一磅的水由華氏39度加熱至華氏40度所需的熱能 [1]。 此一單位通常用在蒸汽機、暖氣、冷氣、電熱等產業。 科學界通常使用 SI 制標準單位：焦耳。 風壓開關基本上與流水開關是同一用途，只是一個安裝在風槽，風葉較大，用以感應是否有空氣流動，屬於保護系統的一種。 空氣流動時，風力推動風葉，帶動限位開關 (Limit Switch)交出訊號。 流水開關則安裝在水管上，而且較 …

Three Key Elements of a MVAC System Environment refers to the customer indoor air environment requirement. Mechanical Systems refers to a set of mechanical equipment, which serve as source, distribution and terminal function. Controls refers to control components that monitor and regulate the performance of mechanical system..

MVAC: Design and Build of Mechanical, Ventilation and Airconditioning System We do design and build as following system: Split Types Air-conditioning (Wall mounted, Concealed duct and Cassette Type)

C.3 Work is deemed to include all cutting of ductwork to fittings, equipment and ancillaries, and providing all necessary materials, heat, bolts, nuts, washers and everything necessary for making joints and connections.

Ensure the safety of the air we breathe with knowledge and skills in air systems and equipment selection for Mechanical Ventilation & Air-Conditioning (MVAC). You will learn all about the principles of air distribution systems using practical examples of system designs and installations in modern building and industries.

• Size branch ducts & balance total pressure at junctions • Adjust supply flow rates according to duct heat gain • Resize duct sections, recalculate & balance parallel paths

Part 1 – Cooling Tower Basics in MVAC System Air Conditioning Basics: Life experience let us know human comfort depending on temperature and moisture content of air in the space. Humid air contains higher moisture content. Engineering/Scientific representation refers to higher humidity/relative humidity.

There are several types of HVAC ductwork. Examples include air conditioning ductwork, heating ductwork, furnace ductwork, and insulated ductwork. Air conditioning ductwork uses malleable ducting pipes that are placed in the ceiling. These pipes route the cool air through ceiling vents or ducts in each room.