Installation Guide

FV669 Rev. B 10/14/2019
Page 6
Sensor Angle Adjustment (when necessary)
STEP 2
Mark down Locking ring original position relative to valve body
with tape or marker. Loosen locking ring (See Figure 16) on
valve head using strap wrench (supplied) turning counter-
clockwise.
STEP 1
Turn o󰀨 control stop using a at head screw driver turning
clockwise (See Figure 16). Then, use the electronic override
button to ush the water out of the ush valve.
STEP 3
Rotate ush valve head to adjust sensor angle.
STEP 4
Tighten locking ring back to original position with strap wrench
(supplied) by turning clockwise.
STEP 4
Place valve head with diaphragm kit back onto valve body.
Tighten locking ring back to original position with strap wrench
(supplied) by turning clockwise.
STEP 5
Turn control stop back on by turning counter-clockwise using a
at head screw driver.
STEP 5
Turn control stop back on by turning counter-clockwise using a
at head screw driver.
Locking Ring
Orice
Diaphragm Kit
Manifold Stem
Control Stop
Electronic
Override
Button
Diaphragm Replacement and Cleaning (when necessary)
STEP 1
Turn o󰀨 control stop using a at head screw driver turning
clockwise (See Figure 16 above). Then, use the electronic
override button to ush the water out of the ush valve.
STEP 2
Mark down Locking ring original position relative to valve body
with tape or marker. Uninstall valve head by loosen locking ring
(See Figure 16 above) using strap wrench (supplied) turning
counter-clockwise.
STEP 3B - Replace Diaphragm Kit
Slide out existing diaphragm kit under valve head and replace
with new diaphragm kit onto manifold stem carefully.
STEP 3A - Cleaning Diaphragm Kit
Slide out existing diaphragm kit under valve head. Wash
diaphragm and orice throughly with water. Slide cleaned
diaphragm back on to manifold stem. If cleaning diaphragm and
orice do not resolve issue, follow step 3B.
Do not to damage or enlarge orice. Doing so will result in
incorrect ush rate.
Figure 16
Figure 17