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{{Short description|Wall-mounted air conditioning system}}
A '''Packaged Terminal Air Conditioner''' (often abbreviated '''PTAC''') is a type of self-contained [[HVAC|heating and air conditioning]] system commonly found in hotels, motels, senior housing facilities, hospitals, condominiums, apartment buildings, add-on rooms & sunrooms. Many are designed to go through a wall, having vents and [[heat sink]]s both inside and outside. Different standard dimensions are found in the market including 42×16 inches (1067 x 406 mm), 36x15 inches, and 40x15 inches.
[[File:Packaged terminal air conditioner.jpg|thumb|Packaged terminal air conditioner installed in a residential apartment]]


A '''packaged terminal air conditioner''' ('''PTAC''') is a type of self-contained [[HVAC|heating and air conditioning]] system intended to be mounted through a wall.<ref>{{cite web |title=10 CFR 431.92 "Packaged terminal air conditioner" |url=https://www.ecfr.gov/current/title-10/part-431/section-431.92#p-431.92(Packaged%20terminal%20air%20conditioner) |website=Code of Federal Regulations |publisher=U.S. Department of Energy |access-date=18 October 2023}}</ref> 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.<ref name=pm193506>{{cite news |title=Room-size Air Conditioner Fits Under Window Sill |newspaper=Popular Mechanics |url=https://books.google.com/books?id=uN4DAAAAMBAJ&pg=PA885 |access-date=13 June 2013 |date=June 1935 |publisher=Hearst Magazines |pages=885– |issn=0032-4558}}</ref>
Although PTACs are used mostly to heat or cool a single living space using only electricity (with resistive and/or heat pump heating), there are cooling-only PTACs with external heating through a [[hydronic]] heating coil or [[natural gas]] heating. Typical PTAC heating and cooling capacity values range from 2 to 5.5&nbsp;kilowatts (7,000–19,000&nbsp;[[British thermal unit|BTU]]/h) nominal. One characteristic of PTACs is that condensate drain piping is not required because the condensate water extracted from the air by the [[evaporator coil]] is drawn by the condenser fan onto the condenser coil surface where it evaporates. Conventional PTACs still require condensate drain piping to be installed.<ref>{{cite web|url=https://www.forbes.com/sites/peterdetwiler/2014/05/22/ice-storage-a-cost-efficient-way-to-cool-commercial-buildings-while-optimizing-the-power-grid/#5707ad8c1434|title=Ice Storage: A Cost-Efficient Way To Cool Commercial Buildings While Optimizing the Power Grid|first=Peter|last=Kelly-Detwiler|publisher=|accessdate=24 June 2017}}</ref><ref>{{cite web|url=http://www.groundsun.co.uk/content/ice-storage|title=Ice Thermal Storage Air Conditioning for Cooling Buildings |accessdate= June 20, 2017 | archiveurl=http://www.webcitation.org/6rMLKbFZ9 |archivedate=June 24, 2017 |deadurl=no}}</ref><ref>{{cite web|url=https://arstechnica.com/business/2017/05/ice-batteries-commissioned-by-utility-will-cool-california-businesses/|title=California utility augments 1,800 air conditioning units with “ice battery”|publisher=|accessdate=24 June 2017}}</ref>


PTACs are commonly found in commercial settings (hotels, motels, hospitals), or multifamily facilities (senior housing, condominiums, apartment buildings). PTACs are mostly used to cool individual living spaces, there are units which offer resistance heating and/or heat pumps. (The latter are more properly described as packaged terminal heat pumps or PTHP). PTACs with support for external heating through a [[hydronic]] heating coil or [[natural gas]] heating also exist. Typical PTAC heating and cooling capacity values range from 7,000–19,000 [[British thermal unit|BTU]]/h (2 to 5.5 [[kilowatt|kilowatts]]) nominal.<ref>[https://haineselectrical.com.au/services/air-conditioning/commercial-air-conditioning/ Haineselectrical]</ref>
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PTACs are commonly installed in window walls and masonry walls. Their installation typically requires the following:

⚫
PTACs are commonly installed in window walls and masonry walls, with multiple standard dimensions available including 42×16 inches (1067x406 mm), 36x15 inches, and 40x15 inches. Their installation typically requires the following:
* [[Louver]]s
* [[Louver]]s
* Metal [[sleeve]]
* Metal sleeve
* [[Heating coil]]
* [[Heating coil]]
* The PTAC itself
* The PTAC itself
* Room enclosure
* Room enclosure

==History==
The first practical through the wall air conditioning unit was invented by engineers at [[Chrysler Motors]] and offered for sale starting in 1935.<ref name=pm193506>{{cite news |title=Room-size Air Conditioner Fits Under Window Sill |newspaper=Popular Mechanics |url=https://books.google.com/books?id=uN4DAAAAMBAJ&pg=PA885 |accessdate=13 June 2013 |date=June 1935 |publisher=Hearst Magazines |pages=885– |issn=0032-4558}}</ref>


==References==
==References==

Latest revision as of 05:01, 23 December 2024

Packaged terminal air conditioner installed in a residential apartment

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]

PTACs are commonly found in commercial settings (hotels, motels, hospitals), or multifamily facilities (senior housing, condominiums, apartment buildings). PTACs are mostly used to cool individual living spaces, there are units which offer resistance heating and/or heat pumps. (The latter are more properly described as packaged terminal heat pumps or PTHP). PTACs with support for external heating through a hydronic heating coil or natural gas heating also exist. Typical PTAC heating and cooling capacity values range from 7,000–19,000 BTU/h (2 to 5.5 kilowatts) nominal.[3]

PTACs are commonly installed in window walls and masonry walls, with multiple standard dimensions available including 42×16 inches (1067x406 mm), 36x15 inches, and 40x15 inches. Their installation typically requires the following:

References

[edit]
  1. ^ "10 CFR 431.92 "Packaged terminal air conditioner"". Code of Federal Regulations. U.S. Department of Energy. Retrieved 18 October 2023.
  2. ^ "Room-size Air Conditioner Fits Under Window Sill". Popular Mechanics. Hearst Magazines. June 1935. pp. 885–. ISSN 0032-4558. Retrieved 13 June 2013.
  3. ^ Haineselectrical


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