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WorksheetsAir Management
Total questions: 10
Worksheet time: 13mins
When initially filling a hot water heating piping system, what should you do before starting the pump?
close all of the valves in the entire system
purge the entire piping system of free air
close only the valves feeding the terminal units
start-up the heat source (e.g. boiler)
The amount of gas dissolved in a solution is proportional to pressure of gas over the solution. This statement describes...
Henry's Law.
Charles' Law.
Bernoulli's Principle.
Boyle's Law
What type of hydronic device is the yellow unit in this photo?
air separator
dirt eliminator
combo air separator and dirt eliminator
strainer
Place the hot water heating components below in the preferred order according to flow (beginning with the source of heat).
_____expansion tank
_____radiation
_____boiler
_____pump
Historically, place the hot water expansion devices below in the order in which they were invented.
_____open steel expansion tank
_____closed steel expansion tank
_____diaphragm or bladder type expansion tank
_____ open overflow pipe and the space in the top of the radiators
Place the items below in the order of their value and usefulness from the least to the most.
_____air scoop
_____air separator
_____combo air separator and air eliminator
_____hydraulic separator with air and dirt elimination
Place these air vents in size order, from the smallest to the largest.
_____radiator air vent
_____air scoop air vent
_____air vent on a brass screw air separator
_____air vent on a steel flanged air separator
What is the order of operation inside a Diaphragm Tank?
_____heated water expands pushing diaphragm against compressed air.
_____cooled water contracts and compressed air pushes diaphragm back against the system water.
_____water is filled into piping and water side of the tank.
_____compressed air is pre-charged before installation.
Place the operation of a functioning Air and Dirt Eliminator in order.
_____microbubbles and dissolved air coalesce
_____ accumulated dirt is manually removed through the blow-down valve
_____ free and entrained air automatically escape
_____ coalesced air automatically escapes
What is the order of operation relating to how air can affect a modern hydronic heating system?
_____water is heated and air separates from water.
_____ compression tank water cools and the air above it mixes (dissolves) back into the water.
_____ initial filling of the system introduces air.
_____ pump starts: suction pressure drops and releases air from water.
