5330 East 25
th
St.
Indianapolis, IN 46218
Phone (317) 261-1212
Fax (317) 261-1208
INSTALLATION &
MAINTENANCE MANUAL
Design and specifications subject to change without notice.
Please refer to temperedwater.com to ensure most
current data sheet and other design solutions.
CAUTION: When maintaining and adjusting
the mixing valve, the delivered ushing uid
temperature shall be 60°F (15°C) to 95°F (35°C).
In circumstances where chemical reaction is
accelerated by ushing uid temperature, a medical
advisor should be consulted for the optimum
temperature for each application.
CAUTION: When maintaining and adjusting the
mixing valve, all xtures should be isolated from
use. Lawler Manufacturing Co., Inc. recommends
that you work safely at all times and in a manner
consistent with the OSHA Lock/Tagout standard,
29 CFR 1910.147 and other applicable standards.
temperedwater.com/patents
ENG. NO. 8334-A
ASSE 1071 Approved
ASSE Lead Free Certied
NOTICE! No mixing valve will work satisfactorily if improperly installed. We suggest, therefore, that you read
these instructions carefully before installing and follow directions as outlined. Handle the mixing valve with care.
Model 911
®
Thermostatic Mixing Valve
Emergency Shower
This installation & maintenance manual covers all
congurations of the Model 911.
CAPACITIES – MODEL 911
Pressure Drop PSI 5 10 20 30 45
Tempered Flow GPM 25 35 50 60 72
Tempered Flow LPM 74 132 189 227 273
BYPASS CAPACITIES – MODEL 911
Pressure Drop PSI 5 10 20 30 45
Cold Bypass GPM 14 20 28 40 45
Cold Bypass LPM 53 75 106 151 170
8334_911_TH-TI_DRW_NODIMS.pdf
DIMENSIONS
Valve Number A N.P.T. B N.P.T. C D E
911 1-1/4” 1-1/4” 11” 9” 8”
Dimensions are for reference purposes only. For rough-in dimensions
please refer to Lawler’s Revit/BIM models found at temperedwater.com.
B
E
D
C
A
A
Maximum Inlet Pressure: 125 PSI
Recommended Supply Pressure: 65 PSI
Recommended Inlet Temperature: 120°F
When supplying 140°F or greater, additional outlet
controls should be used.
Set Point: 85°F
Gallon per minute ratings may vary depending upon
incoming water temperatures and pressures. Hot and cold
water inlet pressures must be equal.
Valve must be installed with check valves. If shut off valves
are installed in the shower line for maintenance purposes,
provisions shall be made to prevent unauthorized shut off.
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