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15115leo.txt
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1998-06-22
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SECTION 15115
THERMOSTATIC WATER MIXING VALVES
NOTE ** This section is based on products manufactured by
Leonard Water Temperature Controls, headquartered
at the following address:
NOTE ** 1360 Elmwood Avenue
NOTE ** Cranston, RI 02910
NOTE ** Tel: (401) 461-1200
NOTE ** Fax: (401) 941-5310
NOTE **
NOTE ** This section includes manifold systems to control
water temperature for building hot water systems,
shower rooms, emergency showers, and other
commercial, institutional, and industrial
applications.
NOTE **
NOTE ** SECTION 15115 - THERMOSTATIC WATER MIXING VALVES,
Copyright 1998, The Architect's Catalog, Inc.
PART 1 GENERAL
1.1 SECTION INCLUDES
NOTE ** Delete items below not required for project.
A. Exposed thermostatic water mixing valve systems.
B. Cabinet-mounted thermostatic water mixing valve systems.
1.2 RELATED SECTIONS
NOTE ** Delete any sections below not relevant to this
project; add others as required.
A. Section 15145 - Plumbing.
B. Section ______ - ____________________.
C. Section ______ - ____________________.
1.3 REFERENCES
A. American Society of Sanitary Engineering - Standard 1017
1.4 SUBMITTALS
A. Submit under provisions of Section 01300.
B. Product Data: Manufacturer's data on systems, including
dimensions, rough-in dimensions, pipe connection sizes,
trim, and finishes.
NOTE ** Delete the following paragraph if all finishes are
specified.
C. Selection Samples: For selection of finish.
D. Manufacturer's printed installation instructions.
E. Operation and maintenance data.
1.5QUALITY ASSURANCE
NOTE ** Delete the following paragraph if no substitutions
will be allowed.
A. Manufacturer Qualifications: Company specializing in the
manufacture of products of this section, with minimum of
three years experience.
PART 2 PRODUCTS
NOTE ** Although this section is structured for easy
selection of manifold systems, it will nevertheless
be necessary to refer to the manufacturer's printed
bulletins for exact configurations, dimensions, and
special piping methods.
2.1 MANUFACTURER
A. Thermostatic Water Mixing Valves: Leonard Water
Temperature Controls; 1360 Elmwood Avenue; Cranston, RI
02910; ASD. Tel: (401) 461-1200; Fax: (401) 941-5310.
B. Substitutions will not be permitted.
NOTE ** Delete either the paragraph above or the one below.
C. Requests for substitutions will be considered in
accordance with provisions of Section 01600.
D. Provide all products from a single manufacturer, unless
otherwise indicated.
2.2 THERMOSTATIC WATER MIXING VALVES
A. Fabrication: Factory preassembled and tested, including
the following unless otherwise specified:
1. Large and small Type TM thermostatic water mixing
valves to function as a system meeting both high and
low demand for tempered water.
2. Thermostatic water mixing valves powered by DURA-
trol(R) solid metal thermostat regulating water
temperature.
3. Integral checkstops, wall supports, and cast lever
handles.
4. Pressure regulating valve set to adjust to varying
flow requirements, opening to allow flow from larger
mixing valve as demand increases.
5. Outlet dial thermometer, pressure gages, ball valve
shutoff on each mixing valve, and pre-piped inlet
manifold with unions.
NOTE ** Select either or both of the paragraphs below
relevant to project.
B. Unless otherwise indicated provide the following for each
exposed thermostatic water mixing valve system as
applicable:
1. Large Type TM Thermostatic water mixing valve,
adjustable high temperature limit stop, inlet
checkstops, wall support, and outlet ball valve.
2. Small Type M Thermostatic water mixing valve,
adjustable high temperature limit stop, inlet
checkstops, wall support, and outlet ball valve.
3. Inlet manifold piping.
4. Outlet pressure regulating valve and pressure gages.
5. Color-coded dial thermometer (0 to 140 degrees F,
minus 10 to 60 degrees C).
NOTE ** Insert inlets and outlet sizes below.
6. ___ inch (___ mm) inlets, ___ inch (___ mm) outlet.
7. 1.0 gallon per minute (3.7 L/min) minimum flow
capacity.
C. Unless otherwise indicated provide the following for each
cabinet-mounted thermostatic water mixing valve system as
applicable:
1. Large Type TM Thermostatic water mixing valve,
adjustable high temperature limit stop, inlet
checkstops, wall support, and outlet ball valve.
2. Small Type M Thermostatic water mixing valve,
adjustable high temperature limit stop, inlet
checkstops, wall support, and outlet ball valve.
3. Inlet manifold piping.
4. Outlet pressure regulating valve and pressure gages.
5. Color-coded dial thermometer (0 to 140 degrees F,
minus 10 to 60 degrees C).
NOTE ** Insert inlets and outlet sizes below.
6. ___ inch (___ mm) inlets, ___ inch (___ mm) outlet.
7. 1.0 gallon per minute (3.7 L/min) minimum flow
capacity.
8. Recessed cabinet, 16 gage body, 12 gage door; left
hand hinge and flange, cylinder lock; bottom inlets,
top outlet.
2.3 VALVE AND PIPING FINISH
NOTE ** Select one of the following three paragraphs.
A. Rough bronze.
B. Satin sprayed.
C. Chrome plated.
NOTE ** Select the following article if cabinet-mounted
systems are specified; delete if only exposed
systems are specified.
2.4 CABINET FINISH
NOTE ** Select one of the following paragraphs.
A. Steel, white baked enamel.
B. Stainless steel, No. 4 finish.
PART 3 EXECUTION
3.1 EXAMINATION
A. Verify that piping is installed properly and in the
correct locations.
3.2 PREPARATION
A. Install thermostatic water mixing valve systems before
wall surface is completed.
3.3 INSTALLATION
A. Install thermostatic water mixing valve systems in
accordance with the manufacturer's instructions.
B. Install systems plumb and level.
NOTE ** Select one of the following two paragraphs. The
first paragraph is the preferred method. If
showing the heights on the drawings is not
convenient, either make a list here of mounting
heights or specify the mounting height.
C. Install thermostatic water mixing valve systems at
heights indicated on drawings.
D. Install thermostatic water mixing valve systems at
heights required by applicable plumbing code.
E. Install piping connections as specified in Section 15145.
3.4 ADJUSTING AND CLEANING
A. Adjust water flow rates to comply with manufacturer's
rating of the system and with American Society of
Sanitary Engineering Standard 1017 requirements for mixed
water temperature.
B. Clean systems of labels, dirt, and construction debris.
END OF SECTION