Metering Devices Highlights Flashcards
1
Q
Cap tube min internal diameter?
A
0.028
2
Q
Cap tube maximum ID
A
0.095
3
Q
Cap tube min length?
A
6’
4
Q
Cap tube max length?
A
18’
5
Q
Actuator is a carrier term for orifices?
A
Yes
6
Q
Orifice and cap tube low starting torque?
A
Yes
7
Q
How are hand expansion valves adjusted?
A
By hand dummy
8
Q
Are hand expansion valves for DX coils or flooded?
A
Flooded
9
Q
What kind of load is an aev best for?
A
Constant
10
Q
What size if machinery are aevs seen in?
A
Small, like a slurpee
11
Q
Do aevs Overfeed under load and starve under load?
A
Yes
12
Q
Does an AEV equalize when off?
A
Yes
13
Q
Low side float evaporator is?
A
Flooded
14
Q
Txv capacity increases with an increase in pressure drop
A
Yes
15
Q
Txv formula=
A
P1=P2+P3
