What type of piping systems may be used in a "Fan-coil Unit with Make-up Air" type combined air conditioning system?
1. one-pipe
2. two-pipe
3. three-pipe
4. four-pipe
a) 1,2
b) 3,4
c) 1,2,3
d) 2,3,4
e) 1,3,4
Answer: D
What type of piping systems may be used in a "Fan-coil Unit with Make-up Air" type combined air conditioning system?
1. one-pipe
2. two-pipe
3. three-pipe
4. four-pipe
a) 1,2
b) 3,4
c) 1,2,3
d) 2,3,4
e) 1,3,4
Answer: D