Trane UniTrane Installation, Operation And Maintenance Instructions page 44

Installation—Mechanical
2. For presetting, use the appropriate valve curve shown in
3. Carefully remove the Schrader pressure port connection caps on the manual circuit setter, since
4. Bleed all air from the hoses and meter before reading the pressure drop. Refer to the gauge
5. Adjust the circuit setter valve by turning the valve stem until the appropriate pressure drop is
6. After achieving the proper setting, slightly loosen the two socket head cap screws and rotate
7. If using a three-way valve: close the control valve to the coil, with the differential pressure meter
Adjust the balancing fitting to obtain the same pressure drop across the circuit setter valve as in
step two when the control valve was open to the coil.
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If the piping package has modulating valves: To manually drive the valve open, depress the
button stem on top of the valve and push the lever located on the side of the valve to the full
open position.
setting is necessary to achieve the appropriate pressure drop. The "M" line is the appropriate
line.
they will be at the same temperature as the pipeline.
operating instructions.
achieved.
the memory stop around until it touches the back side of the indicator. Then tighten the screws
to securely set the open memory position. The memory stop indicates the last set open
position.
still connected. This will divert flow to the bypass side of a three-way valve.
Figure 13, p. 45 to determine which
UNT-SVX07B-EN