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Fig. 3. Vertical valve installation.
45
Fig. 4. Acceptable valve angle from vertical
Mounting Plate Adjustment
The Actuator Mounting Plate can be rotated to a different
position for installation in confined spaces. This is
accomplished as follows:
1. Remove the handle from the shaft and set it aside.
2. Remove the two screws that hold the stem assembly to
the mounting plate and set them aside.
3. Remove and set aside the stem assembly.
4. Remove and set aside the two screws that attach the
mounting plate to the valve.
5. Remove and set aside hold-down ring from mounting
plate.
6. Rotate mounting plate around valve top to the desired
position.
NOTE: Take note of the screw hole positions on the
valve. They limit the mounting plate positions.
7. Lower ring down to valve body and engage it in the new
position relative to the mounting plate.
8. Tighten screws to valve body securing the mounting
plate.
9. Reattach the stem assembly to the mounting plate.
10. If desired, replace the handle on the shaft.
NOTE: See Fig. 2 for valve exploded view.
VRN DYNAMIC PRESSURE-REGULATING CONTROL VALVES AND ACTUATORS
M34954
45
M33091
Electrical Installation
1. If necessary, remove actuator wiring cover.
2. Wire actuator using Figures 5 through 13 for the
application required.
3. Replace cover.
Wiring
VALVES WITH FAIL IN PLACE ACTUATORS
DIRECT
SERVICE/OFF
REVERSE
2
1
24 VAC
3
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
1
PROTECTION AS REQUIRED.
2
CONNECTION REQUIRED FOR SPST CONTROL.
24 VDC SUPPLY ACCEPTABLE FOR MVN643.
3
Fig. 5. MN6105 with On/Off Control.
Direct
Service/Off
Reverse
2
1
24 VAC
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
Fig. 6. MN6105 with Floating Control.
3
FLOATING ACTUATOR
CONTROLLER
3
4
FLOATING ACTUATOR
FLOATING
4
3
CONTROLLER
M18946A
38-00005EFS—02
2
M34869
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