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Author Question: What allows the safety relay to operate? A) Increasing the current flow B) Shutting off the ... (Read 122 times)

anshika

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on: Jul 24, 2018
What allows the safety relay to operate?
 
  A) Increasing the current flow B) Shutting off the burner
  C) Heating up the heat exchanger D) Decreasing the current flow

Question 2

Before starting the unit:
 
  A) Purge the system with nitrogen. B) Check the low- and high-side pressures.
  C) Check the power supply with the unit off. D) Remove the refrigerant.


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bigcheese9

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

A

Answer to Question 2

C


anshika

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Reply 2 on: Jul 24, 2018
Wow, this really help

triiciiaa

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Reply 3 on: Yesterday
Gracias!

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