The supply voltage to a system drops below the minimum voltage ...

[ereecah]

The supply voltage to a system drops below the minimum voltage when the unit is operated. What could be causing this?
 
  What will be an ideal response?

Question 2

Do enclosed display cases use more or less energy than open cases?
 
  What will be an ideal response?

[Alyson.hiatt@yahoo.com]

Answer to Question 1

Power wire is too small or poor connections at either end of the power wire.

Answer to Question 2

Even though enclosed cases reduce the total refrigeration load, they have additional energy requirements as compared to open cases. Anti-sweat heaters located in the glass doors require a substantial amount of energy. Enclosed cases also require more lighting as compared to open cases. Because of this there is very little total efficiency advantage between enclosed and open cases.

[ereecah]

Thanks for the timely response, appreciate it

[Joy Chen]

Great answer, keep it coming