Installation Instructions
R540
3/4" CENTRAL THERMOSTAT WITH VOLUME CONTROL
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To ensure that your installation proceeds
Certified to comply with ANSI A112.18.1M ASSE 1016
M 9 6 8 4 8 0
ROUGHING-IN DIMENSIONS
CONNECTIONS ARE: 3/4" NPT
3/4" NPT SHOWER
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3/4" NPT
INLET
3/4" NPT TUB
7
3/4" NPT
INLET1-5/8 - 
THERMOSTATIC BATH/ SHOWER INSTALLATION USING A TWIN ELL, DIVERTER SPOUT AND FIXED SHOWER
| C/L |
| |
18" | TUB PORT |
(OPTIONAL) | MUST BE |
| PLUGGED |
| 4" |
TWIN |
|
ELL |
|
TOP OF TUB RIM |
|
BOTTOM OF TUB 
IMPORTANT: WHEN NOT USING A DIVERTER SPOUT A SEPARATE DIVERTER VALVE MUST BE USED.
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 SHOWER INSTALLATION USING A DIVERTER VALVE, FIXED SHOWER HEAD, ADJUSTABLE HAND HELD SHOWER, ON/OFF VALVE AND TWO BODY SPRAYS
DIVERTER
VALVE
ON/OFF
VALVE
HOT | COLD |
3/4" | 3/4" |
TUB PORT MUST
BE PLUGGED
NOTE: MINIMUM FLOWING PRESSURE REQUIRED FOR THIS SYSTEM OPERATING WITH ONE SHOWER HEAD AND 2 BODY SPRAYS IS 40 PSI