FV669 Rev. G 06/22/22
Page 9
STEP 1
Take the additional locking ring from the retrofit kit box and
thread it onto the valve body to ensure the threads match. If
the additional locking ring will not thread onto the valve contact
customer service for further instructions
STEP 2
Remove the diaphragm kit from the valve head if attached. Then
remove the valve cap from the valve head following Steps 4.1 &
4.2 of the Battery Installation Section.
STEP 3
Using a Phillips head screwdriver, turning counter clockwise
remove the 3 mounting screws shown in Figure 19 and remove
the ring insert from the manifold. Then remove the existing
locking ring from the manifold and install the new locking ring
onto the manifold.
STEP 4
Install the removed ring insert and using a Phillips head
screwdriver, turning clockwise tighten all 3 mounting screws.
Reassemble the valve cap to the manifold assembly following
Step 2 in reverse order.
STEP 5
Resume step 4 of the Retrofit Installation Section.
Locking Ring Change Instruction
Mounting
Screws
Mounting
Screws
Ring Insert
Figure 20
Sensor Range Adjustment (when necessary)
STEP 1
Place a piece of cardboard or a light-colored target at desired
detection range away from sensor.
Note: When placing the target for a water closet consider that
when standing at the front of the bowl the sensor is focused on
the right upper thigh area.
STEP 2
Place the Zurn Magic Magnet (optional accessory: P6900-
AT-MAG)
on top flat surface (see Figure 20). Once magnet is
placed in the general area shown, the red status LED illuminates
continuously on for 5 seconds. The status LED will quickly flash
and then begin flashing once a second. The valve will then have
entered Calibration Mode and the magnet should be left in place
to automatically enter verification mode at the end of calibration.
Note: The target must be in position no later than the end of the
2nd flash after the first quick flashes. The last 8 of 10 flashes will
determine the new detection range.
STEP 3
After 10 LED flashes followed by a double flash the new
detection range will be calibrated and set. If the Magnet was
not removed the range verification mode will automatically
commence.
STEP 4
During range verification mode repeatedly move the target away
and toward the sensor. When the target is within range the
status LED continuously illuminates. When the target is out of
range the status LED turns off. If range is satisfactory remove
the magnet and sensor resumes normal operation. If the range
is not satisfactory remove the magnet and repeat sensor range
adjustment at step 1
While in range verification mode, test calibrated sensor
range using targets of various material types/textures to ensure
calibration accuracy. Verify that sensor range does not detect
stall doors or other reflective surfaces.
Figure 19
