Hydrotech 5600 SXT Downflow Service Manual - Manual (Page 41)

Page 41
Service Instructions
Replacing Brine Valve, Injectors and Screen
Turn off water supply to conditioner:.
If the conditioner installation has a “three valve” bypass system, first open the valve in the bypass.
line, then close the valves at the conditioner inlet and outlet..
If the conditioner has an integral bypass valve, put it in the Bypass position..
If there is only a shut-off valve near the conditioner inlet, close it.
Relieve water pressure in the conditioner by stepping the control into the Backwash position momentarily.
Return the control to the In Service position.
Unplug electrical cord from outlet.
Disconnect brine tube and drain line connections at the injector body.
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.
Brine Valve Replacement
Pull brine valve from injector body. Also remove and discard o-ring at bottom of brine valve hole.
Apply silicone lubricant to new o-ring and reinstall at bottom of brine valve hole.
Apply silicone lubricant to o-ring on new valve assembly and press into brine valve hole. Be sure shoulder on
bushing is flush with injector body.
Injectors/Screen Replacement
Remove injector cap and screen, discard o-ring. Unscrew injector nozzle and throat from injector body.
Screw in new injector throat and nozzle, be sure they are sealed tightly. Install a new screen.
Apply silicone lubricant to new o-ring and install around oval extension on injector cap.
Apply silicone lubricant to three new o-rings and install over three bosses on injector body.
Insert screws thorough injector cap and injector. Place this assembly thorough hole in timer housing and into
mating holes in the valve body. Tighten screws.
Reconnect brine tube and drain line.
Return bypass or inlet valve to normal In Service position. Water pressure automatically builds in the condi-
tioner..
NOTE: Be sure to shut off any bypass line.
Check for leaks at all seal areas. Check drain seal with the control in the Backwash position.
Plug electrical cord into outlet.
Set Time Of Day and cycle the control valve manually to assure proper function. Make sure control valve is
returned to the In Service position.
Be sure there is enough salt in the brine tank.
Start regeneration cycle manually if water is hard.
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