Installation Sheet

CENTRAL THERMOSTAT
WITH VOLUME CONTROL
Installation
Instructions
M968255 Rev.1.4 (12/14)
R520
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.
Certified to comply with ANSI A112.18.1
ASSE 1016
ROUGHING-IN DIMENSIONS
CONNECTIONS ARE: 1/2" NPT
5-7/8
II II
6-1/4
3-15/16
7
3-5/8
1-5/8 - 2-1/2
1/2" NPT TUB
1/2" NPT
INLET
1/2" NPT INLET
T
OP
1/2" NPT
SHOWER
IMPORTANT: WHEN NOT USING A
DIVERTER SPOUT A SEPARATE
DIVERTER VALVE MUST BE USED.
NOTE: MINIMUM FLOWING PRESSURE REQUIRED FOR
THIS SYSTEM OPERATING WITH ONE SHOWER HEAD
AND 2 BODY SPRAYS IS 40 PSI
TUB PORT MUST
BE PLUGGED
HOT
1/2" 1/2"
COLD
TUB PORT MUST
BE PLUGGED
HOT
1/2" 1/2"
COLD
THERMOSTATIC BATH/
SHOWER INSTALLATION
USING A TWIN ELL, DIVERTER
SPOUT AND FIXED SHOWER
THERMOSTATIC SHOWER INSTALLATION
USING A DIVERTER VALVE, FIXED
SHOWER HEAD AND ADJUSTABLE HAND
HELD SHOWER
THERMOSTATIC SHOWER INSTALLATION USING A
DIVERTER VALVE, FIXED SHOWER HEAD, ADJUSTABLE
HAND HELD SHOWER, ON/OFF VALVE AND TWO
BODY SPRAYS
TWIN
ELL
TOP OF TUB RIM
BOTTOM OF TUB
TUB PORT
MUST BE
PLUGGED
DIVERTER
VALVE
DIVERTER
VALVE
ON/OFF
VALVE
C/L
4"
18"
(OPTIONAL)
80"-86"
OPERATING PROCEDURE
Place temperature handle in the middle position between the extreme hot and cold positions.
TO PREVENT DAMAGE TO THE TEMPERATURE HANDLE ASSEMBLY, DO NOT FORCE HANDLE TO THE EXTREME HOT OR COLD POSITIONS.
Move volume control handle (top handle, R540 Type Rough Valves) to the “on” position and allow the water to reach temperature. This
process might take up to one minute depending on the system.
Adjust temperature handle (bottom handle, R540 Type Rough Valves) to the desired temperature position. Turn temperature handle in
small increments until desired temperature is reached. To prevent damage to the temperature handle assembly, DO NOT force handle to
the extreme left or right positions.
Temperature handle should remain in last position for next use to ensure that desired, set temperature is achieved.