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.
1.5 QUALITY 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.