FV62 Rev. D 11/14/18
Page 5
Removing The Old Solenoid
1. Turn off water supply to fl ush valve at shut off (S.O.).
2. Cycle the valve once – fl ush it to relieve pressure holding the
valve closed.
3. Remove the main valve body cap (Item #1) from the fl ush
valve (Item #6) using a wrench.
4. Remove the plastic diaphragm cover (Item #2) from the top of
the diaphragm assembly.
5. Remove the diaphragm assembly (Item #3) from the fl ush
valve (Item #6).
6. Using a screwdriver, remove the riser tube (Item #5)from the
solenoid (Item #7).
7. Remove the RetroFlush sensor assembly (Item #9) from the
fl ush valve handle port using a wrench on the handle nut
(Item #11).
8. Remove the solenoid retaining clip (Item #8) and gently pull
the solenoid (Item #7) out of the housing.
Note: Pay special
attention to the position of the retaining clip ends to
ensure proper reassembly into the proper slots.
9. Disconnect the sensor cable connector from the solenoid.
Note: If the white connector is not fully accessible, then
see the special instructions on page 6.
ZR Flush Valve/ZRK Retrofi t Kit
Solenoid Replacement Instructions
Installing The New Solenoid
1. Connect the cable connector on the solenoid (Item #7) to
the sensor cable connector.
2. Lightly lubricate the solenoid O-ring seal with silicon
grease provided to prevent damage while reassembling
the unit. Insert the solenoid (Item #7) into the housing
and install the solenoid retaining clip (Item #8). When
installed properly, the end of the solenoid housing is free
to rotate.
Note: Be careful not to crimp the battery
wires while inserting the solenoid into the housing.
3. Reinstall the RetroFlush sensor assembly (Item #9) onto
the fl ush valve using a wrench. Be sure the solenoid
inlet (threaded hole) is facing upward when installed in
the fl ush valve. If not, remove Item #9 and rotate the
solenoid for proper position.
4. Remove old O-ring (Item #4) from the upper part of the
riser tube (Item #5). Install new quad ring (Item #4) onto
the riser tube (Item #5) making sure the quad ring is not
twisted. Lightly lubricate the quad ring with the silicone
grease provided.
5. Reinstall the riser tube (Item #5) onto the solenoid (Item
#7). Tighten snug with screwdriver, do not over tighten.
6. Reinstall the original diaphragm assembly (Item #3) onto
the fl ush valve (Item #6).
7. Reinstall the original plastic diaphragm cover (Item #2)
on top of the diaphragm assembly (Item #3).
8. Reinstall the main valve body cap (Item #1) onto the
fl ush valve (Item #6) using a wrench. Tighten properly.
9. Remove battery cover (Item #10) from RetroFlush sensor
assembly (Item #9) with the hex key wrench provided
and press reset button located on the sensor module
case. Reinstall cover (Item #10).
10. Turn on water supply and cycle fl ush valve for normal
operation. Adjust stop valve for optimal fl ow to the
fi xture.
