Peerless Water 6700 - Service Manual - Manual (Page 25)

Printed in U.S.A.
Page 25
MODEL 6700 Downflow
Service Instructions
A. TO REPLACE TIME 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 condi-
tioner inlet, close it.
2. Relieve water pressure in the conditioner by step-
ping 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 dis-
card 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 with washers 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 manu-
ally 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.
5. 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.
6. 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.