Watts Fleck 4650 Hot Water Brass Valve - Manual (Page 17)

Printed in U.S.A.
Page 17
MODEL 4650
Service Instructions (Cont’d.)
C. TO REPLACE PISTON ASSEMBLY
1. Unplug electrical cord from outlet.
2. Turn off water supply to conditioner:
a. If the conditioner installation has a “three valve”
by-pass system, first open the valve in the by-pass
line, then close the valves at the conditioner inlet
and outlet.
b. If the conditioner has an integral by-pass valve, put
it in the by-pass position.
c. If there is only a shut-off valve near the conditioner
inlet, close it.
3. Relieve water pressure in the conditioner by putting the
control in the backwash position momentarily. Return
the control to the service position.
4. Remove the control valve back cover.
5. Remove screw and washer at drive yoke. Remove
timer mounting screws. The entire timer assembly will
now lift off easily. Remove end plug retainer plate.
6. Pull upward on end of piston yoke until assembly is out
of valve.
7. Inspect the inside of the valve to make sure that all
spacers and seals are in place, and that there is no
foreign matter that would interfere with the valve
operation.
8. Take new piston assembly as furnished and push
piston into valve by means of the end plug. Twist yoke
carefully in a clockwise direction to properly align it with
drive gear. Replace end plug retainer plate.
9. Place timer on top of valve. Be sure drive pin on main
gear engages slot in drive yoke (rotate control knob if
necessary).
10. Replace timer mounting screws. Replace screw and
washer at drive yoke.
11. Return by-pass or inlet valving to normal service
position. Water pressure should now be applied to the
conditioner, and any by-pass line shut off.
12. Plug electrical cord into outlet.
13. Set time of day. Cycle the control valve manually to
assure proper function. Make sure the control valve is
returned to the service position.
14. Replace the control valve back cover. Be sure grommet
at cable hole is in place.
15. Make sure there is enough brine in the brine tank.
16. Rotate program wheel counter-clockwise until it stops
at regeneration position.
17. Start regeneration cycle manually if water is hard.
D. TO REPLACE SEALS AND SPACERS
1. Unplug electrical cord from outlet.
2. Turn off water supply to conditioner:
a. If the conditioner installation has a “three valve”
by-pass system, first open the valve in the by-pass
line, then close the valves at the conditioner inlet
and outlet.
b. If the conditioner has an integral by-pass valve, put
it in the by-pass position.
c. If there as only a shut-off valve near the
conditioner inlet, close it.
3. Relieve water pressure in the conditioner by putting the
control in the backwash position momentarily. Return
the control to the service position.
4. Remove the control valve back cover.
5. Remove screw and washer at drive yoke. Remove
timer mounting screws. The entire timer assembly will
now lift off easily. Remove end plug retainer plate.
6. Pull upward on end of piston rod yoke until assembly is
out of valve. Remove and replace seats and spacers
with fingers.