Installing Rotary Valves
Installing Rotary Valves 7
4 Locate the two half–moon cutouts at the bottom back of the
upper valve box. Place the upper box on top of the lower
valve assembly, routing the heater/sensor wires through the
cutouts. Secure with two T-20 Torx screws.
5 For each actuator, push the coupling/shaft assembly
downward with a flat blade screwdriver until the slot on the
coupling engages the valve rotor index pin.
If the coupling and valve do not engage, check that both are
fully counterclockwise and try again. If necessary, turn the
shaft slightly to engage the coupling.
6 Continue to turn the shaft counterclockwise until snug, to
ensure that the valve and actuator are both in the OFF
position.
Figure 9 Turning the valve OFF
7 Tighten the link arm lockscrew firmly.
Turn counterclockwise
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