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Author Question: Modifications such as adding a liquid-line solenoid at the outdoor unit, using a hard shutoff ... (Read 18 times)

cookcarl

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on: Jul 24, 2018
Modifications such as adding a liquid-line solenoid at the outdoor unit, using a hard shutoff thermal expansion valve at the evaporator, and adding a compressor hard-start kit are recommended when:
 
  A) The refrigerant line length is over 40 ft. B) The system is converted from 22 to 410a.
  C) The refrigerant line length is over 80 ft. D) The refrigerant line length is less than 50 ft.

Question 2

What units are used to indicate specific enthalpy?
 
  A) BTU lb B) BTU/lb
  C) BTU D) Degrees Fahrenheit


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scikid

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

C

Answer to Question 2

B


cookcarl

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

Joy Chen

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Reply 3 on: Yesterday
Excellent

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