What is the advantage of a four-pipe system for hydronic heating and cooling?
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What is the advantage of a four-pipe system for hydronic heating and cooling?
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- List at least three variables (structures) that affect the loss of heating and cooling in the building (house).A forced convection heating system is installed in a house. The lengths of6-inch circular duct that are needed are: kitchen, 6 feet; dining room, 12 feet;living room, 3 feet; master bedroom, 5 feet; second bedroom, 7 feet; thirdbedroom, 13 feet. How many feet of 6-inch round duct are needed?What are the three operational considerations that govern the design and manufacture of heat pipes?
- Air-conditioning units come in sizes of whole and half tons. A 1-ton airconditioningunit will cool a typical 1,100 sq ft house in the southern part ofthe United States. What size unit would be needed to cool a 2,973 sq ft housein the southern part of the United States? (Round up to the next higher wholeor half ton.)What are the disadvantages of increased ventilation?Give an explanation of what a "heated zone" is, how it operates, and what restrictions could be imposed on its usage.
- A magnetic strip fits around the grill of this air-conditioning unit. How longmust the strip be to completely fit around the grill?What are the two basic types of fans used in air pollution control devices?Building requires to maintain different temperature settings. What are most common cooling system used here in Singapore.?