FV669 Rev. G 06/22/22
Page 8
Retrofit Installation Instruction
Figure 18A
Figure 18C
STEP 1
Turn off control stop using a flat head screw driver turning
clockwise. Then, use the electronic or manual override button or
manual handle to flush the water out of the flush valve.
STEP 2
Remove the existing valve cap/head and diaphragm kit from the
valve body to get the valve to either state shown in Figure 18A.
STEP 3
FOR ULF UNIVERSAL KIT ONLY: Loosen tailpiece nut from
control stop and slide tailpiece out of control stop. Locate
tailpiece tabs. If the valve body does not have tailpiece tabs
matching those in Figure 18B, then carefully insert the tailpiece
into the control stop, tighten the tailpiece nut, and proceed to
Step 4.
If tailpiece tabs are present, then press the Flow Restrictor into
the tailpiece, being sure to align the tabs with the pockets on the
Flow Restrictor. Carefully insert the tailpiece into the control stop
and tighten the tailpiece nut.
STEP 4
Ensure the Volume Control Ring is installed on the manifold
stem. Slide the diaphragm kit into the valve body, orienting the
orifice opposite of the control stop. See Figure 18C.
STEP 5
Install valve head and diaphragm kit onto the valve body. Rotate
the valve head so the sensor window is facing outward. See
Sensor Angle Adjustment section if more detail is needed.
STEP 6
Before tightening the locking ring, make sure the strap wrench
and locking ring are completely dry so that the strap wrench has
the best grip possible on the locking ring.
Hand tighten the locking ring onto the valve body. If the locking
ring will not thread onto the valve body go to the Locking Ring
Change Section. Finish tightening the locking ring using the strap
wrench. Turn the locking ring at least 1/3 of a turn with the strap
wrench.
STEP 7 (if applicable)
Remove the Manual Handle. Place the Handle Cap Seal in the
Handle Cap and torque the handle cap in place.
STEP 8
Slowly turn on the control stop using a flat head screw driver
turning counter-clockwise and check for leaks. If leaks occur,
tighten locking ring further. Go to Battery Installation section to
power on the unit and check for leaks once more after flushing
the valve. If you find leaks are still present. Then remove the
valve cap from the valve head shown in Step 4.1 & 4.2 of the
Battery Installation Section. Use the supplied strap wrench or a
large wrench on the flats of the locking ring to tighten it.
Mating Pockets (X2)
Tailpiece Tabs (X2)
Figure 18B
Orifice
Volume
Control Ring
Manifold Stem