American Standard Rough Valve Kit Installation Instructions

Introduction

Thank you for selecting American-Standard, a benchmark of fine quality for over 100 years. To ensure that your installation proceeds smoothly, please read these instructions carefully before you begin.

This product is certified to comply with ANSI A112.18.1. U.S. Patent No. D403,750.

1. Roughing-In

CAUTION: Turn off hot and cold water supplies before beginning.

NOTE: When soldering, remove the PLASTER GUARD, CARTRIDGE, and CHECK STOPS (if present). After soldering, flush the valve body, replace cartridges, check stops (if present), and the plaster guard to continue installation. Use thread sealant or Teflon tape on threaded connections.

IMPORTANT NOTE: TO AVOID SHOWER RISE OR OTHER RELATED ISSUES, DO NOT USE PEX CONNECTIONS ON ANY OF THE INLETS / OUTLETS.

Roughing-In Dimensions

This diagram illustrates the necessary dimensions for installing the American Standard Rough Valve Kit. It shows the relationship between the finished wall, the tub rim, and the valve body. Key measurements include: the finished wall should be positioned within the side wall of the plaster guard; an optional height of 18 inches (45.7 cm) from the top of the tub rim is indicated; the wall thickness range for installation is 1-5/8 inches to 3-1/4 inches (41 to 83 mm); and an optional height from the finished floor is noted, typically between 65 and 78 inches (165 to 198 cm). The diagram also specifies connection types: 1/2" NPT for R125 and R125SS, and 1/2" Nominal Copper Sweat for R121 and R121SS. Various other dimensions (e.g., 3-3/8", 4-1/16", 5-7/8") are shown relative to mounting brackets. A critical warning states: "DO NOT USE PEX CONNECTIONS ON ANY OF THE INLETS / OUTLETS" to prevent issues like shower rise.

Roughing-In Diagram with Parts

This diagram shows the internal components and their connections during the rough-in phase. Part 1 is the RISER PIPE (connecting to the "SHR" outlet of the manifold). Part 2 is the MANIFOLD, with "SHR" (shower) and "TUB" outlets. Part 3 is the TUB FILLER PIPE (connecting to the "TUB" outlet). Part 4 is the PLASTER GUARD, which also serves as a wall support if needed. Part 5 is the shower pipe (to be capped off). Part 6 is the tub filler pipe (to be capped off). Part 8 is the MOUNTING BRACKET, secured to wall braces. The diagram also shows the COLD and HOT water supply connections to the manifold.

Connections:

• 1/2" copper sweat for sweat inlets
• 1/2" female NPT for threaded inlets

Installation Steps:

• Secure the MOUNTING BRACKET (8) to the wall brace with wood screws.
• Connect the RISER PIPE (1) to the MANIFOLD (2) top outlet marked "SHR".
• Connect the TUB FILLER PIPE (3) at the bottom outlet marked "TUB".
• For proper positioning, the finished wall must be within the side wall of the PLASTER GUARD (4).
• If the valve is installed on a fiberglass or other thin wall application, the PLASTER GUARD (4) can be used as a support.
• Cut a 3" (76 mm) diameter hole in the shower stall.
• If STOPS are used, drill two additional 1" (25 mm) holes to allow access to the stops.
• Remove the PLASTER GUARD (4), rotate it 180° so that the indicated screw holes fit the MANIFOLD (2).
• Push the CAP on the valve, place the ESCUTCHEON on and attach with screws.
• Connect hot and cold water supplies.
• Cap off the shower pipe (5) and tub filler pipe (6).
• For support, use pipe braces secured to wooden braces.
• With the valve turned off, turn on water supplies. Check for leaks. Finish wall construction.

2. Adjust Hot Limit Stop

The HOT LIMIT SAFETY STOP restricts handle rotation and limits the amount of hot water allowed to mix with the cold, reducing the risk of accidental scalding. To set the maximum hot water temperature for your faucets, adjust the setting on the HOT LIMIT SAFETY STOP.

How to Adjust: Use a flat blade screwdriver or your fingers to pull up and rotate the red HOT LIMIT SAFETY STOP (1). Follow Step "A" or "B" to adjust the minimum/maximum discharge temperature. The scale ranges from "0" (hottest) to "7" (coldest). The factory setting is "0".

• Adjustment When Water is Too Cold (Step B): Pry red ring forward and rotate clockwise.
• Adjustment When Water is Too Hot (Step A): Pry red ring forward and rotate counter-clockwise one click.

3. Service

• If the faucet drips, operate the CARTRIDGE PIVOT (1) handle several times from "off" to "on". Do not apply excessive force.
• Clogged CARTRIDGE (3) inlets may cause reduced flow in "full on" hot or cold. To clean inlets, first turn off the water supply, then:
• Remove the CARTRIDGE (3). Clean the inlets and the MANIFOLD (4).
• Reassemble the CARTRIDGE (3), alternately tightening the SCREWS (2).

Parts List

This diagram provides an exploded view of the valve components and lists their part numbers and names:

• 051122-0070A: SCREWDRIVER STOPS
• 013205-0070A: STOP VALVE O-RING
• M952100-0070A: PRESSURE BALANCING UNIT
• 023529-0070A: CARTRIDGE
• 050145-0070A: 1/2" SWEAT PLUG
• 027816-0070A: 1/2" NPT PLUG
• M961854-0070A: FIXATION RING WITH SCREWS
• 023603-0070A: CARTRIDGE SCREWS

Customer Support

For toll-free information and answers to your questions, call:

• USA: 1 (800) 442-1902 (Mon. - Fri. 8:00 a.m. to 8:00 p.m. EST; Saturday 10:00 a.m. to 4:00 p.m. EST)
• Canada: 1-800-387-0369 (TORONTO 1-905-306-1093)
• Mexico: 01-800-839-1200

Product names listed herein are trademarks of American Standard Inc. Part of LIXIL.