Watts MMV - Manual

For Residential, Commercial and Institutional Applications
ES-MMV
Job Name –––––––––––––––––––––––––––––––––––––––––––– Contractor ––––––––––––––––––––––––––––––––––––––––––––
Job Location –––––––––––––––––––––––––––––––––––––––––– Approval ––––––––––––––––––––––––––––––––––––––––––––––
Engineer ––––––––––––––––––––––––––––––––––––––––––––– Contractor’s P.O. No. –––––––––––––––––––––––––––––––––––
Approval ––––––––––––––––––––––––––––––––––––––––––––– Representative –––––––––––––––––––––––––––––––––––––––––
Series MMV
Thermostatic Mixing Valves
Sizes: 1 ⁄
2
" – 1" (15 – 25mm)
Series MMV Thermostatic Mixing Valves maintain and limit mixed
hot water to a desired, selectable temperature. The MMV series
can be set to any temperature between 80°F and 120°F with flow
rates as low as 0.5 gpm and as high as 12 gpm (refer to capacity
chart on back). This mixing valve series is listed under ASSE 1017
for valves used in hot water source applications, ASSE 1069 for
single-pipe, tempered water applications and ASSE 1070 for valves
used in individual or multiple fixture applications and also listed
IAPMO cUPC.
The MMV-M1 uses a double throttling design to control both the
hot and cold water supply to the mixed outlet. The superior flow
characteristics of this valve provide accurate temperature control
(±3°F) with low pressure drop across the rated flow range. As an
added feature, the MMV-M1 series incorporates integral inlet filter
washers and check valves in both the hot and cold water inlets to
protect against cross flow.
The MMV-M1 is available with either union thread (-UT), union
solder (-US), CPVC, (-QC) Quick-Connect or PEX end connectors.
Features
• Bronze body construction
• Solid wax hydraulic principle thermostat assures dependable
mixing of hot and cold water
• Thermostat controls both hot and cold water
• Solder, threaded, PEX or CPVC, Quick-Connect end connection
models available
• Adjustment cap with locking feature
• ASSE 1017 listed
• ASSE 1069 listed
• ASSE 1070 listed
• IAPMO cUPC listed
• Integral filter washers and check v alves
Specifications
A Thermostatic Mixing Valve shall be installed on the hot water supply
to fixture. The valve shall be ASSE 1017, ASSE 1069, ASSE Standard
1070 and IAPMO cUPC listed and control the temperature of the hot
water. It shall have a bronze body and shall include integral filter wash-
ers and check valves and an adjustment cap with locking feature. The
valve shall be provided with solder (-US), threaded (-UT), CPVC, (-QC)
Quick Connect or PEX union connections. The valve shall be a Watts
Regulator Company Series MMV.
Applications
The MMV-M1 Thermostatic Mixing Valves are ideal for supplying
sinks, baths, showers or lavatories with tempered water. The MMV-
M1 valves can be used in residential, commercial and institutional
environments. These thermostatically modulated mixing valves can
be used anywhere preset water temperature is required for point-of-
use installations such as in homes, schools, restaurants, hospitals,
beauty salons, and public restrooms. The MMV-M1 is provided with
an adjustment cap that includes a locking feature.
The MMV-M1 valves should be used prior to the fixture to reduce
the hot water supply to a safe temperature.
MMV-US-M1
MMV-QC-M1
WARNING!
When used in an ASSE 1017 application at the hot water source, the Watts
Thermostatic Mixing Valve Series MMV cannot be used by itself to control final
temperature at fixtures where ASSE Standard 1016-96 or ASSE Standard 1070
listed devices are required. Such use may result in severe bodily injury (i.e.
scalding or chilling) and/or death. Additional ASSE Standard 1016-96, ASSE
1069 or ASSE Standard 1070 listed devices, such as Watts Series L111, USG
or MMV, should be used at fixtures to prevent possible injury.
Recirculation systems should recirculate water at temperatures over 140ºF to
reduce the risk of bacterial growth in the piping. This valve should not be used
to achieve these elevated temperatures. This valve can be used at fixtures in
conjunction with recirculation systems to reduce the system’s hot water to a
safe temperature at the point of use.
IMpoRTANT!
Water temperatures in excess 110ºF (43ºC) are dangerous and may cause scalding,
severe injury or death! This valve can be adjusted to deliver water at temperatures
exceeding 110ºF (43ºC). Consequently, when used in an ASSE 1016-96, ASSE
1069 or ASSE 1070 application, the installer must check the mixed water outlet
temperature at the point of use and adjust the Watts Thermostatic Mixing Valve
Series MMV to ensure delivery of water at a safe temperature not exceeding 110ºF
(43ºC). Mechanical valves are not fail-safe. Due to the effects of various water condi-
tions, periodic verification of outlet water temperature is required.
Triple Listed!
ASSE 1017,
ASSE 1069 & ASSE 1070
Watts product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements,
please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials with-
out prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.