American Standard R420, R430, Shower Systems User Manual

Installation

MAX

Instructions

SHOWER SYSTEMS

TWO WAY OR THREE WAY
IN-WALL DIVERTER

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.

Recommended Tools

TWO WAY: R420
THREE WAY: R430

Certified to comply with ANSI A112.18.1M

50321REV. 1.1

Flat Blade Screwdriver

Phillips Screwdriver

ROUGHING-IN DIMENSIONS

NOTE: NO CONCEALED PIPING FURNISHED

79mm

(3-1/8")

Teflon Tape

CAUTION: DO NOT SEAL ANY OUTLETS. DIVERTER

CANNOT BE USED AS A STOP VALVE.

66.1mm

(2-9/16")

MAX.

Adjustable Wrench

57mm

(2-1/4")

Pipe Wrench

41.1mm
(1-5/8")

MIN.

ALL CONNECTIONS 1/2" NPT

FINISHED

WALL

ROUGHING-IN

M

A

X

1

See Roughing-in Drawing on cover page. The port with the BATH TUB picture is the high flow.

The DIVERTER can be installed with the inlet rotated in any position.

Supply connections are 1/2" NPT connections.

For proper positioning the finished wall must be within side of PLASTER GUARD.

Connect water to valve. The reverse side of the body is marked with arrows.
CAUTION: Do not solder near the VALVE. Damage to the SEAL may occur.
Do not seal any outlets. The DIVERTER cannot be used as a stop valve.

For support use pipe braces secured to wooden braces. 

TEST DIVERTER

2

Check that the DIVERTER operates correctly and does not leak.
To do this, screw off the PLASTER GUARD, turn around, and
insert using the fluted pin into the fluting on the DIVERTER SPINDLE
and use as a diverter knob. Screw the PLASTER GUARD back on.
Have the wall tiled only with the PLASTER GUARD screwed on.

Turn off hot and cold water supplies before beginning.

CAUTION

DIVERTER

PLASTER

GUARD

INSTALL TRIM

3

After finished wall is complete, remove PLASTER GUARD.

See separate installation instructions supplied with trim kit for handle assembly.

SERVICE

4

To Replace O-Rings:

Turn off water supply.

For R420 AND R430:

Unscrew CAP (1) and remove STEM (2),
SPRING (3) and DISKS (4, 4a) and SEALS (5).

Remove old DIVERTER elements and
install new parts.

Re-assemble in reverse order.

5

DIVERTER

SPINDLE

5

4

2

3

5

1

4a

WASHER

WASHER

50321REV. 1.1