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Hydronics 2 (Continuing Education)

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Hydronics 2

1. 
Air causes irritating system noises, as well as interrupting proper                                  to and from the circulating fluids.
2. 
Removal of dissolved, free and entrained air can only be achieved with a high-efficiency air elimination device that includes a                            medium that continually scrubs the air out of the system.
3. 
Unless reduced below an acceptable level, the oxygen dissolved in water causes                         .
4. 
Dissolved air is also present in the system water and the amount is determined principally by the                                                         of the incoming water.
5. 
Various devices such as manual and automatic air vents are used to address                         which floats up to the high points throughout the system.
6. 
In most water systems, the water is circulated by means of one or more                                       .
7. 
Air scoops are one example of products which attempt to remove                          air.
8. 
A water-loop hydronic system must have one or more                                     .
9. 
On average, tap water contains between 8-10%                          air by volume.
10. 
Tangential or centrifugal style air separator devices are limited to removal of free and                          air only.

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