Watts MMV User Manual download pdf

For Residential, Commercial and Institutional Applications

ES-MMV

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Approval

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Engineer

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Series MMV

Thermostatic Mixing Valves

Sizes:

⁄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.

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Summary of Contents

Page 1 - Series MMV

For Residential, Commercial and Institutional ApplicationsES-MMVJob Name –––––––––––––––––––––––––––––––––––––––––––– Contractor –––––––––––––––––

Page 2 - Dimensions — Weights

MaterialsBody: BronzeDisc: StainlesssteelThermostatAssembly: CopperO-rings: Buna-N;EPDMPistons: Udel-P1700Springs: StainlessSteelPressure –

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