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Author Question: What controls the firing of a water boiler? A) The auxiliary switch on the zone valve B) An ... (Read 58 times)

vinney12

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on: Jul 24, 2018
What controls the firing of a water boiler?
 
  A) The auxiliary switch on the zone valve
  B) An aquastat that senses the temperature of the water in the boiler
  C) The boiler water temperature is normally maintained by the high limit and the low water cutout.
  D) A wall thermostat that senses the temperature of the house

Question 2

How can debris be flushed from a newly installed ground loop?
 
  A) By running water through the loop after connecting it to the system.
  B) By temporarily connecting the purge unit.
  C) By adding low-toxicity antifreeze to the system.
  D) By running water through the loop before connecting it to the system.


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shewald78

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Reply #1 on: Jul 24, 2018
Answer to Question 1

B

Answer to Question 2

D


vinney12

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Reply #2 on: Jul 24, 2018
Thanks


shewald78

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Reply #3 on: Jul 24, 2018
Welcome :)


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