R420

American Standard R420, R430, Shower Systems User manual

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TWO WAY OR THREE WAY
IN-WALL DIVERTER
Installation
Instructions
50321REV. 1.1
THREE WAY: R430
TWO WAY: R420
SHOWER SYSTEMS
Certified to comply with ANSI A112.18.1M
ROUGHING-IN DIMENSIONS
NOTE: NO CONCEALED PIPING FURNISHED
41.1mm
(1-5/8")
MIN.
66.1mm
(2-9/16")
MAX.
FINISHED
WALL
79mm
(3-1/8")
57mm
(2-1/4")
ALL CONNECTIONS 1/2" NPT
CAUTION: DO NOT SEAL ANY OUTLETS. DIVERTER
CANNOT BE USED AS A STOP VALVE.
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.
MAX
Recommended Tools
Flat Blade Screwdriver
Teflon Tape
Phillips Screwdriver
Adjustable Wrench
Pipe Wrench
Turn off hot and cold water supplies before beginning.
CAUTION
INSTALL TRIM
1
3
TEST DIVERTER
2
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. 
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.
ROUGHING-IN
SERVICE
4
To Replace O-Rings:
DIVERTER
DIVERTER
SPINDLE
PLASTER
GUARD
M
A
X
5
5
4a
4
2
3
1
WASHER
WASHER
5
See separate installation instructions supplied with trim kit for handle assembly.
After finished wall is complete, remove PLASTER GUARD.
For R420 AND R430:
Re-assemble in reverse order.
Remove old DIVERTER elements and
install new parts.
Unscrew CAP (1) and remove STEM (2),
SPRING (3) and DISKS (4, 4a) and SEALS (5).
Turn off water supply.
50321REV. 1.1
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