Questions for you smart guys. (NATE)

[joec_123]

Just studying up on some Nate practice questions. Got a few that I could use some help with if anyone has a second... Also include where you found these answers if available. Thanks in advance!!!!!

1. If you have a 20A motor, what is the max amp size dual
element fuse you can use??

For some reason 175% sticks in my mind for motors 20A and under, but I don't remember if that's for fuse size or what..


2. With a leak in the return duct of 15% at a 95deg.F attic space temp, how would you calculate the infiltration?



3. The lineset should be sized to accomodate a pressure/temperature drop of no more than??
A. 1psi/1deg.
B. 2-4psi/2deg.
C. 5-8psi/4deg.
D. 10psi/8deg.

I know that the 'discharge' line for R22 with a remote condensor has a recommended max pressure drop of 6psig, but would that be the same recommendation for a lineset of a split system??

JoeC

[rasmussen6880]

this is a beter topic for the pro section.