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  2. Automotive air conditioning - Wikipedia

    en.wikipedia.org/wiki/Automotive_air_conditioning

    Sustainable automotive air conditioning is the subject of a debate – also known as the Cool War – about the next-generation refrigerant in car air conditioning. An advocacy group, The Alliance for CO 2 Solutions , supports the uptake of carbon dioxide (CO 2 ) as a refrigerant in passenger cars, and the chemical industry is developing new ...

  3. Packaged terminal air conditioner - Wikipedia

    en.wikipedia.org/wiki/Packaged_terminal_air...

    A packaged terminal air conditioner (PTAC) is a type of self-contained heating and air conditioning system intended to be mounted through a wall. [1] The first practical semi-portable air conditioning unit invented by engineers at Chrysler Motors. It entered the market in 1935, and was designed to fit under a window like many modern PTACs. [2]

  4. Variable air volume - Wikipedia

    en.wikipedia.org/wiki/Variable_air_volume

    A CAV box can only operate between a constant, maximum value, or an “off” state. [5] This difference means the VAV box can provide tighter space temperature control while using much less energy. Another reason why VAV boxes save more energy is that they are coupled with variable-speed drives on fans, so the fans can ramp down when the VAV ...

  5. Jeep Wrangler (YJ) - Wikipedia

    en.wikipedia.org/wiki/Jeep_Wrangler_(YJ)

    Glove box lock; A hardtop was a $923.00 option and came with a mandatory rear window defroster at $164.00. Although soft-top models came standard with "half doors", full framed doors with glass windows were an option, and as on all 6-cylinder Wranglers, air-conditioning was also an option.

  6. HVAC control system - Wikipedia

    en.wikipedia.org/wiki/HVAC_control_system

    HVAC (Heating, Ventilation and Air Conditioning) equipment needs a control system to regulate the operation of a heating and/or air conditioning system. [1] Usually a sensing device is used to compare the actual state (e.g. temperature) with a target state. Then the control system draws a conclusion what action has to be taken (e.g. start the ...

  7. Glossary of HVAC terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_HVAC_terms

    The higher the unit's SEER rating the more energy efficient it is. smoke damper A damper or adjustable louver designed to augment the ventilation of a space during a fire. split system A split system is the combination of an outdoor unit and an indoor unit. This is the most common type of system. superheat

  8. Window box - Wikipedia

    en.wikipedia.org/wiki/Window_box

    Window box in Charleston, South Carolina. A window box (sometimes called a window flower box or window box planter) is a type of flower container for live flowers or plants in the form of a box attached on or just below the sill of a window. It may also be used for growing herbs or other edible plants.

  9. Fan (machine) - Wikipedia

    en.wikipedia.org/wiki/Fan_(machine)

    Window and central air conditioning in the 1960s caused many companies to discontinue production of fans, [12] but in the mid-1970s, with an increasing awareness of the cost of electricity and the amount of energy used to heat and cool homes, turn-of-the-century styled ceiling fans became popular again as both decorative and energy-efficient.