Glossary
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The terms and definitions included
in this glossary were taken from "ASHRAE Terminology of Heating, Ventilation,
Air Conditioning & Refrigeration".
To access the complete glossary please
visit ASHRAE's Bookstore.
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| o-ring |
ring gasket of circular cross section; a torus |
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| OD |
outside diameter; outside dimension. Also o.d. |
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| odor |
quality of gases, liquids, or particles that
stimulates the olfactory organ |
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| office building |
building or structure for office, professional,
or service-type transactions, such as a medical office, bank, library, or
business; including governmental offices |
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| oil |
various viscous, combustible, water-immiscible
liquids that are soluble in certain organic solvents, and may be animal,
vegetable, mineral, or synthetic in origin.
distillate oil light fraction of oil, separated
from crude oil by fractional distillation. fuel oil products of petroleum graded according
to energy content and viscosity (No. 1 to 6); No. 6 is residual oil, with the
highest energy content and viscosity rating |
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| oil charge |
normal quantity of oil in a reciprocating
compressor or engine |
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| oil fired |
support of combustion in a furnace, stove, etc.,
by the injection of fuel oil |
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| oil pressure delivery |
pressure of an oil pump in pressure-lubricated
machines, or oil burners |
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| oil receiver | vessel for receiving and separating collected
oil prior to returning to or discharging from the refrigerating system. |
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| oil rectifier (oil still) |
apparatus for purifying oil by vaporizing the
refrigerant contained |
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