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7 Cards in this Set
- Front
- Back
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What are the four components in the distribution system of a hot water system |
The pump the piping the radiators the convectors the baseboards the expansion tank |
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What is the basic difference between an open system and a closed system |
1) open system operates at atmospheric pressure 2) closed system is pressurized 3) open system does not have a pump and does not need a pressure release valve 4) open system does not have an automatic water makeup system |
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Where is the expansion tank in an open system |
Above the highest level radiator |
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What is the purpose of the reverse return in a 2 pipe closed system |
the reverse return serves to make each piping loop a similar length this equalizes heat delivery to each room |
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list three materials that have been used for distribution piping in hot water systems in the past |
Black steel copper cast iron plastic |
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When a black steel pipe is extended with copper what can occur |
Corrosion at the connection |
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In a radiant hot water heating system the pipe serve two purposes what are they |
Distribute heated water to the rooms transfer heat to the rooms and return cool water to the boiler |
