List the variables that affect system pressures. What will be ...

[Evvie72]

List the variables that affect system pressures.
 
  What will be an ideal response?

Question 2

Using Figure 31-19, the suction pressure is 155 psig, the liquid pressure is 360 psig, and the ambient temperature is 95F. What charge adjustment needs to be made?
 
  What will be an ideal response?

[yifu223]

Answer to Question 1

Outdoor ambient temperature for air-cooled units
Condenser airflow for air-cooled units
Inlet water temperature for water-cooled units
Condenser water flow for water-cooled units
Return air wet bulb for air conditioners
Evaporator airflow for air conditioners
Returning water temperature for chillers
Chilled water flow for chillers

Answer to Question 2

No adjustment is necessary, the system is charged correctly.

[Evvie72]

Thanks for the timely response, appreciate it

[Dnite]

Excellent