Service manual

Printed in U.S.A.
Page 29
ProFloSE Downflow
Service Instructions
A. TO REPLACE BRINE VALVE, INJECTORS,AND
SCREEN
1. 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.
2. Relieve water pressure in the conditioner by stepping
the control into the backwash position momentarily.
Return the control to the service position.
3. Unplug electrical cord from outlet.
4. Disconnect brine tube and drain line connections at the
injector body.
5. Remove the two injector body mounting screws. The
injector and brine module can now be removed from
the control valve. Remove and discard brine body
O-
rings.
6A. To replace brine valve.
1. Pull brine valve from injector body, also remove
and discard
O-ring at bottom of brine valve hole.
2. Apply silicone lubricant to new
O-ring and
reinstall at bottom of brine valve hole.
3. Apply silicone lubricant to
O-ring on new valve
assembly and press into brine valve hole, shoulder
on bushing should be flush with injector body.
6B. To replace injectors and screen.
1. Remove injector cap and screen, discard
O-ring.
Unscrew injector nozzle and throat from injector
body.
2. Screw in new injector throat and nozzle, be sure
they are sealed tightly. Install a new screen.
3. Apply silicone lubricant to new
O-ring and install
around oval extension on injector cap.
7. Apply silicone lubricant to three new
O-rings and
install over three bosses on injector body.
8. Insert screws thru injector cap and injector. Place this
assembly thru hole in timer housing and into mating
holes in the valve body. Tighten screws.
9. Reconnect brine tube and drain line.
10. 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.
11. Check for leaks at all seal areas. Check drain seal with
the control in the backwash position.
12. Plug electrical cord into outlet.
13. Set time of day and cycle the control valve manually
to assure proper function. Make sure control valve is
returned to the service position.
14. Make sure there is enough salt in the brine tank.
15. Start regeneration cycle manually if water is hard.
B. TO REPLACE TIMER
1. Follow Steps A.1 through A.3.
2. Remove the control valve back cover. Remove the
control valve front cover. Disconnect the meter dome
signal wire from the front cover and feed it back
through the control.
3. Remove screw and washer at drive yoke. Remove
timer mounting screws. The entire timer assembly will
now lift off easily.
4. Put new timer on top of valve. Be sure drive pin on
main gear engages slot in drive yoke.
5. Replace timer mounting screws. Replace screw and
washer at drive yoke. Replace meter signal wire.
6. 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.
7. Replace the control valve back cover.
8. Follow Steps A.12 through A.15.
C. TO REPLACE PISTON ASSEMBLY
1. Follow Steps A.1 through A.3.
2. Remove the control valve back cover. Remove the
control valve front cover. Disconnect the meter dome
signal wire from the front cover and feed it back
through the control.
3. 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.
4. Pull upward on end of piston yoke until assembly is
out of valve.