Figure 1: Positioning the Valve Stem
6.
Install the actuator and linkage assembly over the
ball valve mounting flange.
7.
Use the four pins at the bottom of the linkage
assembly as a guide for aligning to the valve.
Figure 2: Coupling the Actuator to the Valve
8.
If used for field replacement, be sure to mount the
replacement FX-PCV assembly in the exact same
position as the original.
9.
Check that the actuator coupler and handle are in
the fully counterclockwise position as viewed from
the top of the actuator. If not, press the actuator gear
release and rotate the handle until the actuator
coupler is fully counterclockwise.
10. Install the valve actuator over the ball valve mounting
flange. Depending on the installation, position the
assembly in any one of four 90° increments on the
valve.
Note:
For proper operation, the actuator must drive
the valve counterclockwise to open Port A
when viewed from above the valve.
11. Tighten the M4x60 machine screw to the valve. The
handle is keyed and mounts in only one direction.
Recommended torque is 8 to 12 lb·in (0.9 to 1.4 N·m)
Important:
Do not overtighten the screw, or the
threads may strip.
Figure 3: Tighten M4x60 Machine Screw
3
FX-PCV1656 Programmable VAV Box VAV Controllers Installation Instructions
