Home
Flashcards
Preview
Unit 33 review
Home
Get App
Take Quiz
Create
A terminal unit in a hydronic system may be________unit
Finned tube baseboard
boilers that have efficiencies over 90% are commonly referred to as
condensing boilers
in a wet base boiler, the water being heated is located
both above and below the combustion area
All of the following are characteristics of a cast iron boiler are
they are classified as high-mass
they have long run times and off times
they typically contain between 15 and 30 gallons
what are copper water boilers considered
low mass boilers
what does a limit control do
shuts the heat source down if the temp gets to hot
the pressure relief valve does what
is set to relieve pressure in the boiler below the maximum design pressure of the boiler
the expansion tank provides a means of removing the air from the system as well as
provides extra space for the water exspansion and contraction with water temp changes
the parts of the centrifugal pump that spins and forces water through the system is the
impeller
are centrifugal pumps positive displacement pumps
no
where should the circulator be installed in the system
point of no pressure change
the air separator in a hydronic system does what
seperates
air from the water line
what does the air vent in a hydronic system do
removes
air from the water line
where is the water pressure reducing valve located in a hot water hydronic system
between the main water supply and the point of no pressure change
what are zone valves controlled by
thermostats
a flow control valve is also called_______valve
check vave
in a series loop hydronic system the heat piping system heats
all of the heated water flow through all of the terminas
in a primary-secondary pumping arrangement, the largest circulator pump will be located
in the primary loop
Author
salvatorefricano
ID
300918
Card Set
Unit 33 review
Description
Boilers
Updated
4/19/2015, 1:46:48 PM
Show Answers
Home
Flashcards
Preview