American Standard R121SS Rough Valve Kit Instruction Manual

: June 13, 2024
: American Standard

Table of Contents

R121SS Rough Valve Kit
ROUGHING-IN DIMENSIONS
ROUGHING-IN
ADJUST HOT LIMIT STOP
SERVICE
Documents / Resources

ROUGH VALVE KIT
Installation Instructions

R121SS Rough Valve Kit

American Standard R121SS Rough Valve Kit Certified to comply with ANSI A112.18.1
R121; R121SS
R125; R125SS

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

ROUGHING-IN DIMENSIONS

To assure proper positioning in relation to wall, note roughing-in dimensions.

American Standard R121SS Rough Valve Kit - FINISHED

R125
INLETS
1/2″ NPT
ENTRADAS,
1/2″ (12,7 mm) NPT
ENTRÉES
12,7 mm (1/2 po.)
OUTLETS
1/2″ NPT
SALIDA,
1/2″ (12,7 mm) NPT
ORIFICE
12,7 mm (1/2 po.) R125SS
INLETS
1/2″ NPT
ENTRADAS,
1/2″ (12,7 mm) NPT
ENTRÉES
12,7 mm (1/2 po.)
OUTLETS
1/2″ NPT
SALIDA,
1/2″ (12,7 mm) NPT
ORIFICE
12,7 mm (1/2 po.) American Standard R121SS Rough Valve Kit - Brackets
1 R121
INLETS
1/2″ NOM. COPPER SWEAT
ENTRADAS,
1/2″ (12,7 mm)
NOM. COBRE SOLDADO
ENTRÉES
CUIVRE LISSE
12,7 mm (1/2 po.) NOM.
OUTLETS
1/2″ NOM. COPPER SWEAT
SALIDA,
1/2″ (12,7 mm)
NOM. COBRE SOLDADO
ORIFICE
CUIVRE LISSE
12,7 mm (1/2 po.) NOM.
R121SS
INLETS
1/2″ NOM. COPPER SWEAT
ENTRADAS,
1/2″ (12,7 mm)
NOM. COBRE SOLDADO
ENTRÉES
CUIVRE LISSE
12,7 mm (1/2 po.) NOM.
OUTLETS
1/2″ NOM. COPPER SWEAT
SALIDA,
1/2″ (12,7 mm)
NOM. COBRE SOLDADO
ORIFICE
CUIVRE LISSE
12,7 mm (1/2 po.) NOM. NOTE: TO AVOID SHOWER RISE OR OTHER RELATED ISSUES, DO NOT USE PEX CONNECTIONS ON ANY OF THE INLETS / OUTLETS.

ROUGHING-IN

CAUTION
Turn off hot and cold water supplies before beginning.
NOTE: When soldering, remove PLASTER GUARD, CARTRIDGE and CHECK STOPS (IF PRESENT). When finished soldering, flush valve body, replace cartridges, check stops (if present) and plaster guard to continue installation. Use thread sealant or Teflon tape on threaded connections.

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

See Roughing-in diagram before starting.
Connections are:
— 1/2″ copper sweat for sweat inlets
— 1/2″ female NPT for threaded inlets
Secure MOUNTING BRACKET (8) to wall brace with wood screws.
Connect RISER PIPE (1) to MANIFOLD (2) top outlet marked “SHR”.
Connect TUB FILLER PIPE (3) at bottom outlet marked “TUB”.
For proper positioning the finished wall must be within side wall of 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″ dia. hole in the shower stall.
— If STOPS are used, drill two additional 1″ holes to allow access to the stops.
— Remove PLASTER GUARD (4), rotate 180˚ so that indicated screw holes fit MANIFOLD (2).
— Push CAP on valve, place ESCUTCHEON on and attach with screws.
Connect hot and cold water supplies.
Cap off shower pipe (5) and tub filler pipe (6).
For support, use pipe braces secured to wooden braces.
With valve turned off, turn on water supplies. Check for leaks. Finish wall construction.

American Standard R121SS Rough Valve Kit - COLD

ADJUST HOT LIMIT STOP

American Standard R121SS Rough Valve Kit - SETTING

HOT LIMIT SAFETY STOP ADJUSTMENT
By restricting handle rotation and limiting the amount of hot water allowed to mix with the cold, the HOT LIMIT SAFETY STOP reduces risk of accidental scalding. To set the maximum hot water temperature of your faucets, all you need to do is adjust the setting on the HOT LIMIT
SAFETY STOP.

Use a flat blade screwdriver or your fingers to pull up and rotate red HOT LIMIT SAFETY STOP (1). Follow Step “A” or “B” to adjust min./max. discharge temperature. “0” being the hottest to “7” the coldest temperature setting. Factory set at “0”.

SERVICE

If faucet drips, operate 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 water supply, then:
— Remove and CARTRIDGE (3). Clean inlets and MANIFOLD (4).
— Reassemble CARTRIDGE (3), alternately tightening SCREWS (2).

PRESSURE BALANCE TEMPERATURE CONTROL VALVE
MODEL NUMBER
R121 R121SS
R125 R125SS American Standard R121SS Rough Valve Kit -
SCREWDRIVER HOT LINE FOR HELP

For toll-free information and answers to your questions, call:
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
IN CANADA
1-800-387-0369
IN MEXICO
Product names listed herein are trademarks of American Standard Inc.

M968387 Rev. 1.7 (12/16)