indirect system

indirect system

A heating, air-conditioning, or refrigeration system in which a fluid is circulated to the space or material to be heated or cooled, or is used to heat or cool air which is so circulated; the fluid (such as air, water, or brine) is heated or cooled by products of combustion, by electric heating, or by a refrigerant.
References in periodicals archive ?
In an active direct system, the water being pumped through the solar collector is the same water that will be used for domestic hot water or radiant space heating, while in an active indirect system the fluid circulating through the collector never comes into contact with the end use water.
They maintained their authority through their collaboration with the indirect system of colonial rule.
The indirect system of having Parliament elect presidents was put in place during the French Mandate to control the outcomes.
Competitive Positioning of Key Suppliers Growing competition between direct and indirect system will impact the market position of direct TPMS suppliers.
The indirect system requires a heat exchanger and more extensive piping than a direct system.
The indirect system is supplied with Keeler's lightweight wraparound Sport Frames designed to ensure maximum comfort and balance; the indirect can also fit over the top of spectacles.
Constitution devised an indirect system for electing the President and Vice President.
The rejected rule would have allowed automakers to choose between a less expensive indirect system that would work off the antilock braking system and a more accurate direct system of monitors in each wheel.
Unlike the direct monitor, which can pinpoint which tire is low on air, the indirect system merely indicates a problem with one of the tires and prompts the driver to check all four.
Offering comprises construction work for the customer varmecentraler in HOFORS heating networks, including;- Conversion of steam heating systems for water-based district heating (Steam Central Agreement)- Conversion of direct district heating to the indirect system (10-bar central agreement).
OEM Level Audi and Volkswagen (VW) of the Volkswagen Group prefer an indirect system over a direct system.
Constitution calls for this indirect system of choosing the President and Vice President.