VRW2 DYNAMIC PRESSURE- REGULATING FLANGED CONTROL VALVES
5
62-3116—01
Fig. 2. Vertical pipe installation.
Fig. 3. Acceptable valve angle from vertical.
ACTUATOR WIRING AND PROGRAMMING
Shielded cable is recommended when using 0-10 Vdc
modulating control signals for signal protection from RFI/EMI.
Ground shield at one point only
, preferably where signal is
weakest. Do not ground transformer secondary, and isolate
burner ignition systems, which are grounded.
1.
Remove the Actuator Cover from the motor by loosening
screw. Safeguard the screw. See Fig. 4.
Fig. 4. Actuator circuit board layout.
2.
Set the Maximum Flow Dip Switches so that the actuator
limits the valve position to the maximum flow rate
required. (Select the actuator dipswitch setting from
Table 4.) If adjusting the Dip Switch settings after power
has been connected, press the Reset Button to input the
new setting.
ORIENTATION OF
ACTUATOR ABOVE
THE VALVE SPINDLE
CORRECT
M31296
DN 65/80
INCORRECT
DN 65/80
85
85
M29519A
M31286
1
ON
2
3
4
5
6
1
ON
2
3
PROGRAMMING DIP SWITCHES
RESET & CALIBRATION BUTTON
MAXIMUM FLOW DIP SWITCHES
MANUAL OVERIDE CLUTCH
(DO NOT OPERATE WHILE
POWER IS CONNECTED)
ACTUATOR CIRCUIT BOARD LAYOUT
WIRING TERMINAL STRIP
VALVE POSITION IN ROTATIONS
PROGRAMMING & INDICATION LED
LED OFF: ACTUAL VALVE
ROTATIONS ARE BEING DISPLAYED
LED ON: MAXIMUM ROTATION
SETTING IS DISPLAYED
(ALTERNATES EVERY 10 SECONDS)
1 2 3 4 5
88