Thermostatic Valve Replacement Cartridge and Rebuild Kit

Installation Instructions

Rebuild kit for Ondine Thermostatic Mixing Valves including Models 25071 (1/2-inch) and 25072 (3/4-inch). Also fits models 25073, 25074, 25075, 25076. Similar to Ondine Model 25072-4: Thermostatic Mixing Valve Maintenance Kit.May also fit Broadway and other thermostatic shower valves. See our website for more details at www.ShowerStore.com

ShowerStore.com 14160 Live Oak Ave, Ste FBaldwin Park, CA 91706 626 960 2715

Parts List for Ondine systemsPart Numbers ShowerStore.com

1. Thermostatic mixing valve 1/2 in. . . . . 25071Thermostatic mixing valve 3/4 in. . . . . 25072 10244Thermostatic mixing valve w/volume control 1/2 in. . . . . . . . . . . . . . . . . . . 25073Thermostatic mixing valve w/volume control 3/4 in. . . . . . . . . . . . . . . . . . . 25074

2. Housing3. Screens (2) . . . . . . . . . . . . . . . . 25072-14. Cartridge . . . . . . . . . . . . . . . . . 25072-2 102825. Check/stop valve assembly6. High-temperature o-rings, plunger (2)7. Plungers (2)8. Springs (2)9. O-rings, check/stop valve (2)10. Check/stop valves (2) . . . . . . . . . . 25072-511. Retaining clip (2)12. O-rings, valve cover plate (2) 1028213. Valve cover plate14. Screws, valve cover plate (4)15. Plaster guard16. Screws, plaster guard (2)17. Outlet plug18. Volume control 1/2 in. long stem . . . . . 26067

Volume control 3/4 in. long stem . . . . . 26070 1024319. Housing20. Ceramic Cartridge 1/2 in. . . . . . . . . 26067-1 10270

Ceramic Cartridge 3/4 in. . . . . . . . . 26070-1 1027221. Stem protector22. Showerhead23. Twin ell . . . . . . . . . . . . . . . . . . 2507824. Diverter tub spout

Thermostatic Valves including the Ondine 25072 use a high technology temperature sensing element to control temperature fluctuations. At the heart of this system is the thermal motor located at the bottom of the thermostatic cartridge. Over time, impurities in the water can accumulate on the thermostatic element causing an insulation effect and reducing the response time of the valve.

The ShowerStore.com Thermostatic Valve Replacement Cartridge and Rebuild Kit contains everything you need to return your thermostatic valve to proper working order. These instructions will help you get the best performance from your valve rebuild.

DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . page 4LINE FLUSH AND SCREEN CLEANING . . . . . . . . . . page 6RE-ASSEMBLY. . . . . . . . . . . . . . . . . . . . . . . . page 6CALIBRATION . . . . . . . . . . . . . . . . . . . . . . . . page 9

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DISASSEMBLYNOTE: Your valve trim may look different, but the process is similar to other valve trim kits. For additional questions about Ondine valve trim, please call us at the number on the front of this instruction manual.

1 Remove cover.

2 Remove handle screw and keep for re-installation.

3 Remove handle.

4 Unsnap temperature indicator (brass mixing valve trim kit only).

5 Loosen mounting screws until trim escutcheon can be rotated.

6 Remove trim escutcheon by rotating clockwise.

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CARTRIDGECAVITY

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11 Carefully remove the thermo element cartridge. It may take a bit of force to remove it.

Be careful not to mar or damage the valve body.

Notice position of “groove.”.

12 Carefully remove the filtering screens with pliers.

9 Close check/stop valves by turning clockwise.

10 Remove four screws on valve cover plate and remove cover plate.

7 Remove existing adapter screw.

8 Remove handle adapter extension(s) and spline adapter.

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LINE FLUSH AND SCREEN CLEANING

1 To begin flushing, open the stop valves by turning them counter-clockwise. Flush pipes thoroughly.

2 Close the stop valves by turning them clockwise.

RE-ASSEMBLY

1 Make sure the screens are clean and install them by hand using a gentle rocking motion until the seal is at least flush with the face of the valve opening. (The screens will be pushed in deeper when the cover plate is replaced.)

3 Check cartridge screen for impurities and rinse clean.

If the element has excessive deposits, soak in a solution of 50% water and 50% vinegar for 10 minutes. Rinse clean.LI

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2 Make sure the cartridge cavity is free of sediment and debris and that the cartridge is clean before installation. Align cartridge and insert.

Do not force cartridge into place.

4 Open stop valves at this time by turning them counterclockwise.

Make sure that no leakage occurs.

3 Replace the two O-rings in the valve cover plate with the new ones supplied with this kit. (Inset)

Install the cover plate and tighten the four screws.

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5 Replace the spline adapter, any spline extensions and the handle adapter to the cartridge spline.

7 Ensure the existing valve trim mounting screws are in the mounting screw posts on the valve.

6 Insert one of the adapter screws supplied with this kit that fits the best and tighten the adapters to cartridge spline.

PLEASE NOTE: The old screw may not fit the new cartridge.

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8 Mount the trim escutcheon to the valve by aligning the large holes in the trim to the mounting screw heads. Rotate the trim counterclockwise until it is straight.

9 Tighten the mounting screws. Do not overtighten.

2 Place a thermometer under the outlet to measure the temperature of the emerging water.

Turn the handle post to adjust the temperature flowing through the valve to 100° F (38° C).

CALIBRATION

1 Turn the system on by rotating the Volume Control counterclockwise.

Allow the system to warm up.

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3 Shut off the system by rotating the Volume Control clockwise.

5 Replace the handle screw and tighten the handle to the handle post. Ensure that the O-ring is seated on the cap cover.

Snap the cover onto the handle.

4 Attach the handle to the handle post. Align the temperature limit override button on the 100° F mark.

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