Watts LLL40XL - Manual

Job Name ___________________________________________ Contractor ____________________________________________
Job Location ________________________________________ Approval _____________________________________________
Engineer ____________________________________________ Contractor’s P.O. No. __________________________________
Approval ____________________________________________ Representative ________________________________________
ES-LL/LLL-40XL
For Commercial Water Heater Applications
Series LL40 and LLL40
Extended Inlet Shank Automatic
Re-seating T&P Relief Valves
Sizes: 3 ⁄
4
" and 1" (20, 25mm)
The combined 2-in-1 Temperature & Pressure relief valve provides
the least expensive and proven means for protection against both
excessive temperature and pressure emergency conditions.
Full automatic temperature and pressure relief protection for
commercial hot water supply tanks and heaters based on the
latest ANSI Z21.22 listing requirements for temperature dis-
charge capacity.
LL40XL and LLL40XL with test lever and extended inlet shank
for use with the new generation of water heaters with extra
thick insulation. These valves eliminate the use of an exten-
sion nipple required with standard shank length models.
Watts self-closing combination T&P relief valves are design
certified and listed by CSA and ASME.
FEATURES
• Bronze body construction
• Non-mechanical seat-to-disc alignment.
• Thermostat is accurate and proven. Exclusively designed
and manufactured by Watts.
• Tamper-resistant bonnet screws.
• Unique thermostat with a special
thermo-bonded coating
SPECIFICATIONS
Temperature & Pressure Relief Valves
Each hot water storage heater shall be equipped with an
automatic temperature and pressure relief valve to protect
the heater from excessive pressure and excessive tempera-
ture. The device shall be certified as meeting the require-
ments of ASME low pressure heating boiler code and ANSI
Z21.22. The BTU discharge capacity of the device shall be
in excess of the BTU input rating of the heater. Watts Regu-
lator Company Series 40.
STANDARDS
ASME rated, ANSI Z21.22. Design certified and listed by CSA.
Meets current FHA and ANSI Z21.22 requirements in addition
to Military Spec. MIL-V 136-12D, Type I.
PRESSURE - TEMPERATURE
Temperature relief 210
°
F (98.9
°
C). Pressure range 75-150 psi
(5.17-10.34 bars). Standard setting 75, 100, 125 or 150 psi
(5.17, 6.9, 8.61 and 10.34 bars).
Watts product specifications in U.S. customary units and metric are approximate and are
provided for reference only. Watts reserves the right to change or modify product design,
construction, specifications, or materials without prior notice and without incurring any
obligation to make such changes and modifications on Watts products previously or sub-
sequently sold.
Following installation, the valve lever MUST be operated
AT LEAST ONCE A YEAR by the water heater owner to en-
sure that the waterways are clear. Certain naturally occur-
ring mineral deposits may adhere to the valve, blocking water-
ways, rendering it inoperative. When the lever is operated,
hot water will discharge if the waterways are clear. Pre-
cautions must be taken to avoid personal injury from con-
tact with hot water and to avoid property damage.
3 ⁄
4
" LL40XL
1" LL40XL
3 ⁄
4
" LLL40XL
▼
▼
▼
▼
▼
▼
1 21 ⁄
32
"
3 21 ⁄ 32 "
1 25 ⁄
32
"