Trane HUV Installation Operation & Maintenance page 21

Figure 22: Circuit setter
balancing valve
Water Pressure Drops in (feet) for Unit Vent 2-way and 3-way Piping Packages
Table 16: 1.8 Cv rated valves in 1/2" piping packages
Piping Pkg Cv Rating
A Basic Pkg
C w/ CBV
D w/ Strainer & CBV
Table 17: 4.6 Cv rated valves in 1/2" piping packages
Piping Pkg Cv Rating
A Basic Pkg
C w/ CBV
D w/ Strainer & CBV
Table 18: 7.3 Cv rated valves in 3/4" piping packages
Piping Pkg Cv Rating
A Basic Pkg
C w/ CBV
D w/ Strainer & CBV
UV-PRC001-EN
Piping
Factory Installed Piping
Circuit Setter Manual Balancing Valve
Factory installed piping packages that include the circuit balancing valve
(OPTION C or D) feature incorporate a circuit balancing valve.
The circuit balancing valve is available in both 1/2-and 3/4-inch (nominal)
piping packages. This flow mechanism is a combination of service shut-
off, balancing, and flow measuring device. The flow measurement is
achieved by means of a fixed geometry venturi-style orifice. Two pres-
sure reading schrader ports are provided for system balancing. The
memory stop allows return of the stem/ball to its original set position af-
ter use as a servicing shut-off device. The balancing valve stem has
wrenching flats for normal setting. The valve stem is capable of opera-
tion by a 4:1 turn ratio for stem positioning. The balancing valve is de-
signed for use at 300 psi up to 250 F. See Figure 22 for circuit setter
balancing valve.
Note: The circuit setter is used as a return shut-off valve. It is not available
when selecting the 2-position isolation valve option.
2 GPM 3 GPM 4 GPM
1.8 3.2 7.1 12.6
1.8 5.2 11.7 20.7
1.8 5.5 12.4 22.0
5 GPM 6 GPM
4.6 4.5 6.3
4.6 17.2 24.7
4.6 19.1 27.4
9 10 11
GPM GPM GPM
7.3 4.8 5.9 7.1
7.3 16.8 20.7 25.1
7.3 21.2 26.2 31.7
5 GPM 6 GPM 7 GPM
19.5 28.0 38.1
32.3 46.4 63.1
34.2 49.2 66.8
7 GPM 8 GPM 9 GPM
8.5 11.0 13.7
33.5 43.6 55.1
37.2 48.5 61.3
12 13 14
GPM GPM GPM
8.4 9.8 11.4
29.8 34.9 40.5
37.7 44.2 51.2
10 GPM 11 GPM 12 GPM
16.8 20.2 23.9
67.9 - -
75.5 - -
15 16 17
GPM GPM GPM GPM
13.0 14.8 16.7
46.5 - -
58.8 - -
13 GPM 14 GPM
27.9 32.1
- -
- -
18 19 20
GPM GPM
18.7 20.8 23.0
- - -
- - -
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