Whois & Analysis for callaghanpump.com

Heating, ventilation, and air conditioning (HVAC) is the technology of indoor and vehicular environmental comfort.

Its goal is to provide thermal comfort and acceptable indoor air quality.

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).

A pump is a device that moves fluids (liquids or gases), or sometimes slurries, by mechanical action.

Pumps can be classified into three major groups according to the method they use to move the fluid: direct lift, displacement, and gravity pumps.

The ampere (symbol: A), often shortened to "amp", is the base unit of electric current in the International System of Units (SI).

It is named after André-Marie Ampère (1775–1836), French mathematician and physicist, considered the father of electrodynamics.

The technical meaning of maintenance involves functional checks, servicing, repairing or replacing of necessary devices, equipment, machinery, building infrastructure, and supporting utilities in industrial, business, governmental, and residential installations.

Over time, this has come to often include both scheduled and preventive maintenance as cost-effective practices to keep equipment ready for operation at the utilization stage of a system lifecycle.

Commerce relates to "the exchange of goods and services, especially on a large scale.”.

Commerce includes legal, economic, political, social, cultural and technological systems that operate in any country or internationally.