2016 CDM Smith All Rights Reserved July 2016 SECTION PLUMBING - EQUIPMENT

Transcription

1 PART 1 GENERAL 1.01 SCOPE OF WORK SECTION PLUMBING - EQUIPMENT A. Furnish all labor and materials required and install the following Plumbing Equipment complete as specified herein and as shown on the Drawings: 1. Wash Hose Stations 2. Caution Sign 3. Water Hammer Arresters 4. Thermometers 5. Pressure Gauges 6. Water Heaters 7. Lavatory Mixing Valves 8. Hot Water Circulating Pump 9. Expansion Tank 10. Emergency Shower and Eyewash Equipment 11. Flow Alarm Switches 12. Water Meters 13. Reduced Pressure Zone Backflow Preventer (RPZ) 14. Trap Primer Manifold RELATED WORK A. Refer to Section SUBMITTALS A. Submit, in accordance with Sections and , shop drawings and product data, showing materials of construction and details of installation for: 1. Specific items of plumbing equipment as tabulated above under "SCOPE OF WORK" REFERENCE STANDARDS A. Refer to Section Issued for Construction

2 1.05 QUALITY ASSURANCE A. Refer to Section DELIVERY, STORAGE AND HANDLING A. Refer to Section PART 2 PRODUCTS 2.01 GENERAL A. The use of a manufacturer's name and model or catalog number is for the purpose of establishing the standard of quality and general configuration desired. B. Similar items of materials/equipment shall be the end products of one manufacturer in order to provide standardization for, appearance, operation, maintenance, spare parts and manufacturer's service. C. Attention is particularly called to the fact that written approval of all specified equipment proposed for purchase shall be received from the Engineer before purchase of any equipment or components of the equipment ELECTRICAL EQUIPMENT A. Refer to Section ATTACHMENTS A. All equipment shall be provided with lugs, brackets, or field supplied devices to allow all equipment to be firmly attached to the structure. The lugs, brackets or field supplied devices shall be sized to withstand the seismic loads for the area and type of application WASH HOSE STATIONS (3/4-IN, WHS-1) A. A 3/4-in WHS shall be a 3/4-in single supply wall mounted hose station complete as describe below and as shown on the Drawings. B. The hose rack shall be a rugged vinyl plastic unit with a capacity of over 50 feet of the proposed hose. It shall be of an approximate size of 14-in wide x 5-3/4-in deep x 13-in high and include an enclosed storage compartment. Unit shall be Suncast No. DHH150 or equal. C. The hose shall be 50 feet of 3/4-in commercial/industrial grade rubber hose equal to Gilmore Group Model No D. The hose nozzle shall be a 7-pattern select-a-spray with vinyl grip. Unit shall include a holdopen clip for continuous spraying, a rust resistant stainless steel spring, and a lifetime leak proof seal and be equal to a Gilmour Model No E. Ball valves shall be as specified in Section Issued for Construction

3 F. Pipe hangers shall be vinyl coated, malleable iron, split ring type with malleable iron wall plate to receive 3/8-in diameter threaded rod. G. Wall anchors for the hose racks shall be 5/16-in threaded stainless steel anchors with 5/16-in stainless steel hex bolts CAUTION SIGN A. At each WHS and hose bibb located where directed by the Engineer, furnish and install a sign which states: 1. "WATER IS UNSAFE AND IS NOT TO BE USED FOR DRINKING, WASHING OR COOKING PURPOSES" B. Sign shall conform to latest OSHA Regulations as to size, color, exact wording, type and height of letters WATER HAMMER ARRESTERS A. Water hammer arresters shall be sized in accordance with manufacturer's recommendations. B. Arresters shall be stainless steel bellows type as manufactured by J.R. Smith Co.; Zurn Industries Inc. or equal THERMOMETERS A. Thermometers shall be red reading organic spirit filled, adjustable angle, stem type, with 9-in long scale. Range shall be 30 to 240 degrees F with 2 degree scale divisions. B. Thermometers for installation in piping shall have separable sockets. Sockets for installation in insulated piping shall be of the extended neck type to extend beyond the pipe insulation. C. Units shall be manufactured by H.O. Trerice Co.; Weiss Instruments; Taylor or equal PRESSURE GAUGES (PG) A. Shall be 4-1/2-in dial, phenolic turret case, micro-adjustable pointer and Type 316 stainless steel movement, solid front gauge. B. Bourdon tube and connection shall be Type 316 stainless steel. C. Accuracy shall be 1/2 percent of span. D. Range shall be selected so that the expected normal pressure will be read at or slightly above the midpoint of the range. E. All pressure gauges shall be fitted with a stop cock or ball valve. F. Gauges shall be Ametek/U.S. Gauge Series 1900, similar unit by Ashcroft/Dresser or equal. Issued for Construction

4 2.09 WATER HEATERS A. Water heaters and storage tanks shall conform to the most current applicable energy conservation regulation and codes. All heaters shall be provided with lugs, brackets or field supplied devices to allow the equipment to be firmly fastened to the structure. The lugs, brackets or field supplied devices shall be sized to withstand the expected seismic loads for the area and type of application. Location of the attachments shall be based on the equipment being hung or base mounted as shown on the Drawings and the schedules. B. Electric Instantaneous Water Heater (IWH-2) (for emergency shower/eyewash) 1. Shall be commercial electric for emergency shower/eyewash applications, fully tested and engineered to provide tempered water. 2. System shall be designed to increase cold water temperature to a tepid water temperature range between 60 and 100 F. Outlet water temperature is factory set at 80 F. 3. System to consist of UL listed electric instantaneous water heaters, hot shutoff valve, bypass valve, inline mesh filter, and outlet temperature gauge. 4. Unit shall be by Haws, Bradley, or equal. C. Electric Instantaneous Water Heater (IWH-1) (for lavatory) 1. Shall be tankless, single point of use, for hand washing applications, fully tested and engineered to provide tempered water. 2. System shall be designed to increase cold water temperature by a minimum of 75 F at 0.5- gpm flow and 50 F at 0.75-gpm flow. 3. System to consist of UL listed electric instantaneous water heaters, high temperature limit switch with automatic reset, and UL listed cover. 4. Element shall be iron-free, nickel chrome material, replaceable cartridge insert. 5. Unit shall have replaceable filter in the inlet connector. 6. Unit shall be by Eemax, or equal. D. Gas Fired Domestic Water Heater (DWH-1) 1. Water heater shall be as manufactured by Ruud Water Heater Division; A.O. Smith Water Products Company; Bock Water Heaters, Inc. or equal. 2. Unit shall be glass-lined and gas-fired, equipped for low pressure natural gas and design certified by the American Gas Association (AGA) for commercial heaters for delivery of 180 degree F water. 3. Tank shall have a working pressure rating of 150 psi and be equipped with a boiler-type hand-hole cleanout. Issued for Construction

5 4. Water heater shall be completely factory assembled, including a gas pressure regulator adjusted for operation on natural gas, controls arranged for safety shutoff in event of pilot failure, an approved draft diverter, anode rods rigidly supported for cathodic protection and an automatic flue damper for 120 Volt, 60 Hz power. 5. Temperature and pressure relief valve and vacuum relief valve shall be furnished and installed to meet the requirements of the local plumbing codes. Units shall be ANSI Z21.22 and AGA rated. 6. Heater shall have an input rating, minimum recovery rating, and a storage capacity as shown on the Schedules. 7. Tank shall be equipped with water inlet and outlet connections as shown on the Schedules LAVATORY MIXING VALVE A. Unit shall be designed to deliver 0.5 gpm of tempered water at an adjustable temperature range of 85 to 120 degrees F. Unit shall be adjusted to a maximum setting of 115 degrees F in accordance with ANSI/ASSE 1017, ASSE B. Assembly shall be a Watts LFL 1170-M2 with ½-inch inlets; equivalent by Leonard and Powers DIAPHRAGM TYPE EXPANSION TANKS A. Each hot water system shall be provided with an expansion tank located on the water supply side. Expansion tanks shall be equal to units manufactured by Taco; Amtrol, Inc. or equal. B. Units shall be designed and constructed per ASME Code-Section VIII. C. Each unit shall be sized based on the maximum storage capacity of the heated water system, the design temperature differential of the water stored and maximum pressure increase. Submit calculations with each unit HOT WATER CIRCULATING PUMP A. Adjacent to the water heater, in the hot water return line, furnish and install a 3/4-in flanged, inline, horizontal, oil-lubricated circulating pump. B. Pump shall be specifically designed to efficiently circulate heated water and be of all bronze construction with stainless steel shaft. Motor horsepower shall be as shown on the Schedules designed for 120 VAC, single phase, 60 Hz. C. Unit shall be as shown on the Schedules, Bell and Gossett ITT, a Taco Inc., or equal. D. On-off control of the pump shall be by timer and thermostatic control. The pump shall operate only at the preset clock times and when the temperature conditions of the aquastat are met. E. The aquastat shall provide thermostat control to the circulator. Its initial settings shall turn OFF (open) at 115 degrees F water temperature and ON (closed) at 100 degrees F water temperature. Issued for Construction

6 F. The aquastat shall be UL listed and suitable for 115/120V, 60 Hz operation EMERGENCY SHOWER/EYE WASH UNIT (ES/EWU) FLOOR MOUNTED A. Furnish and install a combination emergency shower and eye wash unit where shown on the Drawings as ES/EWU-1. B. Units shall have a 10-in cycolac plastic shower head and eye wash bowl, stay open ball valves and hand and foot control for eye wash. C. Units shall be complete with automatic flow control devices as required to limit emergency shower flow to 20 gpm and eye wash flow to 3 gpm. D. An emergency identification sign shall be included with each unit. E. Units shall be one of the following with modifications as required to meet the requirements specified: 1. Haws - Model No with SP220 foot treadle 2. Guardian - Model No. G-1902P-HFC 3. Bradley - Model No. S19-310LL (Substitute yellow impact-resistant bowl) 2.14 EYE WASH UNIT (EWU-1) A. Furnish and install an eye wash unit where shown on the Drawings as EWU-1. B. Unit shall be wall mounted, hand operated, include stay-open ball valve, automatic volume control, stainless steel bowl and chrome plated trap. C. Units shall be one of the following: 1. Haws - Model 7360BT 2. Guardian - G1724T (Trap/Tailpiece) 3. Bradley - Model S19-220SS (modified with chrome plated trap) D. An emergency identification sign shall be included with each unit FLOW ALARM SWITCHES (FAS) A. Furnish and install flow alarm switches in conjunction with emergency showers, eye-wash units and eye wash/drench hoses, where shown on the Drawings. B. Switches shall be selected according to the flow rate of the specific unit provided. Switches shall be provided by the manufacturer of the emergency flushing equipment or shall be accompanied by a statement of the equipment flow to ensure that proper selection is made. A typical combination eyewash/shower requires a modified flow switch capable of actuation at 2.5 gpm. Issued for Construction

7 C. Each switch shall include a single pole double throw snap action switch rated for 5 Amps, 125/250 VAC, 60 Hz. D. Unless otherwise specified, the local alarm units will be furnished and installed under Division 26. E. The actual location of the flow switches in the piping system shall be in accordance with the manufacturer's recommendations EMERGENCY SHOWER TEST KIT A. Provide one shower test kit for each building containing an emergency shower WATER METERS A. Water meter shall be of the type and manufacturer to meet the approval of the local Water Department. Submittal of meter for approval shall be accompanied by the Water Department's written statement of their requirements. B. Meter shall be of the size shown on the Drawings and supported on galvanized steel floor stanchions with floor flange secured to floor REDUCED PRESSURE ZONE BACKFLOW PREVENTER (RPZ) A. Reduced-Pressure-Principle Zone Backflow Preventers 3 Size and Smaller: ASSE 1013 compliant reduced pressure zone assembly with inlet strainer, installed at each potential health hazard location to prevent backflow due to backsiphonage and/or backpressure. The assembly shall consist of an internal pressure differential relief valve with ASME A air-gap fitting located in a zone between two positive seating check modules with captured springs and silicone seat discs. Seats and seat discs shall be replaceable in both check modules and the relief valve. There shall be no threads or screws in the waterway exposed to line fluids. Service of all internal components shall be through a single access cover secured with stainless steel bolts. Valve body and shutoffs shall be constructed using lead free cast copper silicon alloy materials for sizes up to 2 and fused epoxy coated cast iron body for 2-1 2" and 3" size. Lead free reduced pressure zone assembly shall comply with state codes and standards. The assembly shall also include two resilient seated isolation valves, four 1/4" resilient seated ball valve test cocks and an air gap drain fitting. Pressure loss shall not exceed 10 psig maximum through middle 1/3 of flow range. Reduced pressure zone assemblies shall be Watts Series LF009 of approved equal by Ames, Hersey or Cla-Val. B. Reduced-Pressure-Principle Zone Backflow Preventers 4 Size and Larger: ASSE 1013 compliant reduced pressure zone assembly with inlet strainer, installed at building service inlet to provide cross-connection control protection of the potable water supply in accordance with national plumbing codes and provide containment at the service line entrance to prevent backflow due to backsiphonage and/or backpressure. The assembly shall consist of an internal pressure differential relief valve with ASME A air-gap fitting located in a zone between two positive seating check modules with captured springs and silicone seat discs. The relief valve design shall incorporate an air-in/water-out" principle to substantially improve relief valve discharge performance during emergency conditions of combined backsiphonage and backpressure with both checks fouled. Seats and seat discs shall be replaceable in both check modules and the relief valve. There shall be no threads or screws in the waterway exposed to Issued for Construction

8 line fluids. All internal parts shall be constructed of stainless steel and shall be serviceable through a single access cover secured with stainless steel bolts. All valve bodies and shutoffs shall be constructed of fused epoxy coated cast iron bodies. Lead free reduced pressure zone assembly shall comply with state codes and standards. The assembly shall also include two companion OS&Y gate valves for isolation, four 1/4" resilient seated ball valve test cocks and an air gap drain fitting. The assembly shall be supported on 18 high galvanized steel floor stanchions with floor flange secured to floor. Pressure loss shall not exceed 10 psig maximum through middle 1/3 of flow range. Reduced pressure zone assemblies shall be Watts Series LF909 of approved equal by Ames, Hersey or Cla-Val. The assembly shall be of a manufacture that meets the approval of the authority having jurisdiction. Submittal for approval shall be accompanied by the authority's "acceptable device list" or alternately by their written approval. C. Units shall be supported on galvanized floor stanchions with floor flange secured to floor. D. Units shall be approved by the Authority Having Jurisdiction. E. Each unit shall be supplied with a complete set of spare parts, which shall be stored adjacent to the unit in a wood crate labeled with list of contents TRAP PRIMER MANIFOLD A. Unit shall be an electrically operated trap priming manifold providing a minimum of 2 ounces of water per cycle to each floor drain in a 24 hour period. B. Unit shall be factory assembled and pre-piped including a full port ball valve, water hammer arrestor, electronic brass body solenoid valve, atmospheric vacuum breaker and manifold with brass 1/2-in compression or solder fittings for water distribution to floor drains. All internal piping shall be type L copper. C. Electronic components shall include a 120V, 1 phase, 60 Hz power connection, manual override switch, 5 Amp breaker and 24 hour timer. D. All components shall be factory assembled and tested and supplied in a 16 gauge steel enclosure suitable for either surface or recess mounting. E. Trap make-up water lines shall be 1/2-in Type "L" soft coil copper with solder or compression type fittings. Piping shall be insulated with preformed closed cell foam insulation with a minimum density of 5.5 lbs/cu ft, maximum "K" factor of 0.27 at 75 degrees F mean temperature. F. Unit shall be capable of serving a minimum of 2 floor drains simultaneously. Unused ports on the manifold shall be plugged or capped. G. Unit shall be installed a minimum of one foot above the finished floor per 20 feet of trap make up water line. H. Unit shall be as provided by Precision Plumbing Products; Zurn Industries, Inc.; Mifab or equal. Issued for Construction

9 PART 3 EXECUTION 3.01 INSTALLATION A. Install all the items specified under Part 2 according to the applicable manufacturer's instructions and the details shown on the Drawings. B. Install protected water wash hose stations and hose outlets approximately 4-ft-0-in above the finished floor. C. The Contractor shall not install any equipment or materials until the Owner and Engineer have approved all submittals. If any equipment or materials are installed prior to approval of the submittals, it shall be at the Contractor's risk. D. Install water hammer arresters on all water lines, at top of all risers and immediately adjacent to all quick closing mechanical and electrical operating valves and on all flush valve headers. E. Install vacuum valves, pressure relief and temperature relief valves on hot water tanks and heaters. Pipe relief valves to drain over floor drains. F. Install flow switch as described above for emergency shower and eye wash units in the horizontal pipeline; it shall be on top of the pipe with the vane vertical. It shall be located at a specified distance from any fitting that changes the direction of flow, as recommended by the manufacturer CLEANING A. Properly protect all materials and equipment at all times to prevent obstruction and damage. Maintain protective covers on all units until final clean-up time. B. At the completion of the work, all equipment and exposed trim for the same included in this Section shall be thoroughly cleaned and, where required, polished ready for use. END OF SECTION Issued for Construction

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