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Model 3100
Disassembly Instructions and
Troubleshooting
(Applies to Model 3100PRS)

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Summary of Contents for Superior 3100

  • Page 1 Model 3100 Disassembly Instructions and Troubleshooting (Applies to Model 3100PRS)
  • Page 2 Index Additional Troubleshooting for 3100PRS (Page 14) Disassembly Instructions: Solenoid (Pages 2-4) Valve (Pages 5-8) Parts, Sub-Assemblies, and Repair Kits (Page 15) Troubleshooting: Valve will not close when energized (Pages 9-11) Valve remains closed when not energized (Page 12) Valve opens only part way (Page 12) Valve closes when controller energizes a station (Page 13) Water leaks out around flow control stem (Page 13)
  • Page 3 Solenoid Disassembly Instructions 2. Remove coupling and L-fitting 1. Using a ½” wrench, remove from top of solenoid by applying a copper by-pass tube from top of ½” wrench to the coupling. It is not valve. necessary to separate the L-fitting from the coupling.
  • Page 4 Solenoid Disassembly Instructions 3. Slide coil and U-frame off of 4. Using a flathead screwdriver, remove post from top of valve. solenoid post.
  • Page 5 Solenoid Disassembly Instructions 6. After removing the solenoid 5. As you remove solenoid post, plunger, all that has a cross solenoid plunger will drop out of machined in it so water will be plunger tube. able to escape downstream when the solenoid is not energized and valve will remain open.
  • Page 6 Valve Disassembly Instructions 2. Lift top assembly straight up until 1. Remove bolts that fasten top of valve metering rod clears the top of the to valve body. diaphragm shaft.
  • Page 7 Valve Disassembly Instructions 3. Remove spring from top of 4. Remove diaphragm assembly diaphragm assembly. from valve body.
  • Page 8 Valve Disassembly Instructions 5. To remove rubber seat disc from 6. Completely disassembled diaphragm assembly. From top to bottom: Diaphragm diaphragm assembly, unscrew nut at shaft, fiber washer, upper diaphragm plate, bottom of diaphragm assembly. diaphragm, lower diaphragm plate, fiber washer, spacer nut, fiber washer, seat disc holder, seat disc, retaining washer, and seat disc nut.
  • Page 9 Valve Disassembly Instructions 7. To remove flow control stem from bonnet, remove nut and cross- handle from top of stem, then unscrew flow control stem from underside of bonnet.
  • Page 10: Troubleshooting

    Troubleshooting PROBLEM: Valve will not close when energized. CAUSE #2: CAUSE #1: Plunger seat on top side of solenoid Debris in plunger tube is preventing plunger is retracted below surface of plunger from sealing port at top of plunger top. The rubber seat has a spring plunger tube.
  • Page 11 Troubleshooting PROBLEM: Valve will not close when energized. CAUSE #4: CAUSE #3: Torn diaphragm. Debris under rubber seat disc is preventing it from seating onto brass seat SOLUTION: in valve body. Disassemble diaphragm assembly and SOLUTION: replace diaphragm or replace diaphragm assembly.
  • Page 12 Troubleshooting PROBLEM: Valve will not close when energized. CAUSE #5: Clogged inlet port at bottom of diaphragm shaft is preventing water from entering upper diaphragm chamber. This can be diagnosed by loosening the compression fitting where copper tubing connects to L- fitting above solenoid.
  • Page 13 Troubleshooting PROBLEM: PROBLEM: Valve closes or partially closes when Valve remains closed when solenoid is not solenoid is not energized. energized. CAUSE #1: CAUSE #2: Inlet orifice at top of solenoid plunger tube Water is entering upper diaphragm chamber is clogged, or corrosion in solenoid plunger at too great of a rate due to: 1) Stainless steel tube is preventing water from escaping at inlet orifice in bottom of diaphragm shaft has...
  • Page 14 Additional Troubleshooting Applying to 3100PRS PROBLEM: Valve remains closed when solenoid is not energized. CAUSE: Adjustment knob on regulator is in “off” position preventing water from passing thru regulator. SOLUTION: Raise knob on regulator to unlock it, then rotate knob clockwise, a half turn at a time, until water begins to pass thru valve.
  • Page 15 Troubleshooting PROBLEM: PROBLEM: Valve closes whenever controller energizes Water is leaking out around flow control a station. stem. CAUSE: CAUSE: Master valve circuit is also energized O-ring on flow control stem is damaged. causing normally open master valve to SOLUTION: close.
  • Page 16 Parts, Sub-Assemblies, and Repair Kits Solenoid Coil (24 VAC): 16008 Solenoid Stem and Plunger Assembly: 16300 24 VAC 3-Way Solenoid Assembly: 16075 L-Fitting: 16500-1 Copper Tubing (includes compression fittings): ¾” & 1”-16516, 1 ¼”-16517, 1 ½” & 2”-16518, 2 ½” & 3”-16519 Flow-Control Stem (includes o-ring): ¾”-20006-A, 1”-16081, 1 ¼”-16004-1, 1 ½”...