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  2. Glossary of HVAC terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_HVAC_terms

    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 ...

  3. Date-time group - Wikipedia

    en.wikipedia.org/wiki/Date-time_group

    The DTG is usually placed in the header of the message. One example is "07:00 Dec 03, 2024 (UTC)"; while another example is "07:00 03 Dec 2024". The DTG may indicate either the date and time a message was dispatched by a transmitting station or the date and time it was handed into a transmission facility by a user or originator for dispatch.

  4. Category:Heating, ventilation, and air conditioning - Wikipedia

    en.wikipedia.org/wiki/Category:Heating...

    HVAC stands for "Heating, Ventilation and Air Conditioning". Subcategories. This category has the following 8 subcategories, out of 8 total. ... additional terms may ...

  5. Glossary of HVAC - Wikipedia

    en.wikipedia.org/?title=Glossary_of_HVAC&redirect=no

    What links here; Related changes; Upload file; Special pages; Permanent link; Page information; Cite this page; Get shortened URL; Download QR code

  6. Heating, ventilation, and air conditioning - Wikipedia

    en.wikipedia.org/wiki/Heating,_ventilation,_and...

    HVAC system design is a subdiscipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics, and heat transfer. "Refrigeration" is sometimes added to the field's abbreviation as HVAC&R or HVACR, or "ventilation" is dropped, as in HACR (as in the designation of HACR-rated circuit breakers).

  7. Fan coil unit - Wikipedia

    en.wikipedia.org/wiki/Fan_coil_unit

    These motors are sometimes called DC motors, sometimes EC motors and occasionally DC/EC motors. DC stands for direct current and EC stands for electronically commutated.. DC motors allow the speed of the fans within a fan coil unit to be controlled by means of a 0-10 Volt input control signal to the motor/s, the transformers and speed switches associated with AC fan coils are not required.

  8. Some retailers tell consumers Trump's tariffs are a reason to ...

    www.aol.com/retailers-tell-consumers-trumps...

    Some retailers are using President-elect Donald Trump's proposed tariffs to urge consumers to shop now, suggesting if the import duties go into effect next year, a range of goods could cost ...

  9. List of abbreviations in oil and gas exploration and production

    en.wikipedia.org/wiki/List_of_abbreviations_in...

    CAAF – contract authorization approval form; CalGEM – California Geologic Energy Management Division (oil & gas regulatory body) ... HVAC – heating, ventilation ...

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