American Standard R540 User Manual

Installation

Instructions

R540

CENTRAL THERMOSTAT
with VOLUME CONTROL

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
VERTICAL HORIZONTAL

1-3/4"

to 2-1/2"

13/16"

FINISHED

WALL

hot in

cold in

mixed

out

mixed

out

6-1/2"

2-3/16"

2"

3-1/8"

cold in

hot in

3-1/8"

Certified to comply with ANSI A112.18.1M
ASSE 1016

mixed

out

mixed

out

13/16"

MAX

M968257

1-3/4"

to 2-1/2"

FINISHED

WALL

2-13/16"

NOTE: ALL PORTS ARE 3/4 NPT
FEMALE. FITTING MUST BE INSTALLED
WITH VOLUME CONTROL ON TOP.

THERMOSTATIC BATH/
SHOWER INSTALLATION
USING A TWIN ELL, DIVERTER
SPOUT AND FIXED SHOWER

C/L

80"-86"

SHOWER
PORT

18"

TWIN

ELL

TOP OF TUB RIM

BOTTOM OF TUB

THERMOSTATIC VALVE INSTALLED

IN THE VERTICAL POSITION

IMPORTANT:

DIVERTER SPOUT A SEPARATE
DIVERTER VALVE MUST BE USED.

WHEN NOT USING A

MUST BE
PLUGGED

4"

THERMOSTATIC SHOWER INSTALLATION
USING A DIVERTER VALVE, FIXED
SHOWER HEAD AND ADJUSTABLE HAND
HELD SHOWER

DIVERTER

VALVE

HOT COLD

3/4"3/4"

TUB PORT MUST
BE PLUGGED

THERMOSTATIC VALVE INSTALLED

IN THE HORIZONTAL POSITION

THERMOSTATIC SHOWER INSTALLATION USING A
DIVERTER VALVE, FIXED SHOWER HEAD, ADJUSTABLE
HAND HELD SHOWER, ON/OFF VALVE AND THREE
BODY SPRAYS

DIVERTER

VALVE

ON/OFF

VALVE

HOT COLD

3/4"3/4"

TUB PORT MUST
BE PLUGGED

THERMOSTATIC VALVE INSTALLED

IN THE HORIZONTAL POSITION

ROUGHING-IN THE VALVE

1

Decide on desired configuration.
Prepare water supplies per ROUGHING-IN DIMENSIONS.
Install VALVE at indicated height and depth.

Connect HOT water supply to inlet marked with the RED DOT and
COLD water supply to inlet market with the BLUE DOT.

Assemble the CONNECTING PIPE to one of the MIXED OUTLETS of the VALVE.

Note

: The tub port is fitted with a plug at the factory.

Important! Install any required shut off or diverter valves into the piping system.

CAUTION

Turn off hot and cold water supplies
before beginning.

HOT

INLET

COLD

INLET

MAX

CROSS
BRACE

VALVE

BODY

WARNING

Secure VALVE body to cross brace of wall structure.

FLUSHING THE VALVE

2

Water should be flushed through the piping to prevent
clogging of the

Remove PLASTER GUARD (1).

Turn ADAPTER (2) on volume control clockwise until
it reaches the stop.

Pull off ADAPTER (2).

Remove CLUTCH COVER SCREWS (3) and CLUTCH COVER (4).

Pull out CLUTCH DRIVE SHAFT (5).

Loosen the SCREWS (6) in the center of the GEARS (7). Remove
the GEARS (7) and BACK PLATE (8).

Remove the COLD CARTRIDGE (9) using a 22mm socket wrench.

Turn on MAIN COLD WATER SUPPLY to flush line.

Reassemble COLD CARTRIDGE (9) and repeat flushing steps for
HOT side (9a).

Replace BACK PLATE (8). Assemble both GEARS (7) with the flat side
facing BACK PLATE (8) and tighten SCREWS (6).

IMPORTANT:

DO NOT SOLDER DIRECTLY TO THE VALVE BODY; THIS WILL
DAMAGE THE TEMPERATURE CONTROL ELEMENT.

CAUTION

Turn off hot and cold water supplies
before beginning.

Thermal Element.

Close both CARTRIDGES (9, 9a) by rotating GEARS (7) counterclockwise.

Replace CLUTCH DRIVE SHAFT (5) and CLUTCH COVER (4) with SCREWS (3).

Turn VOLUME CONTROL HANDLE 180 to synchronize the
HOT and COLD CARTRIDGES.

Turn on water supply and check for leaks.

PLASTER

SCREWS

8

GUARD

9a

9

7a

7

PLASTER

GUARD

1

6a

6

MIXED

OUTLET

MAX

5

PLASTER

4

GUARD

SCREWS

3

2

TEMPERATURE CALIBRATION

3

Check that arrow marking B points vertically upwards. If not, push the BLACK
CLAMP (1) on the SECURING RING (2) to the right, pull off KNOB MOUNT (3)
and reinstall KNOB MOUNT (3) with arrow "B" pointing vertically upwards.

SET HOT LIMIT STOP

The maximum mixed water temperature is set at 109 F at the factory.
This setting can be changed if desired.

Remove the TEMPERATURE LIMIT STOP (4) (H shaped Black Plastic part).
Reinstall it at the desired notch as indicated in the diagram to limit the maximum
mixed water temperature to 104 F or 112 F.

For 100 F adjustment, turn the water supply on. Turn KNOB MOUNT (3) until the spout
temperature is 100 F. Check that arrow marking A on the KNOB MOUNT (3) still points
upward after adjusting the thermostat to 100 F. If not, pull out the RED LOCKING DEVICE (5).
Remove KNOB MOUNT (3) without turning by sliding out as indicated by the arrow.

Reinstall the KNOB MOUNT (3) so that the arrow marking A points upwards.
Reinstall RED LOCKING DEVICE (5).

ARROW

"B"

4

104

109

112

2

5

1

ARROW

"A"

3

M968257