DESIGN A/E NOTE - GUIDE SPECIFICATION CONVENTIONS
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Rev 19JUN09 j:\Projects\Active\com-deca_design_criteria_revisions-04071\Guide Specifications\TJG Innformation
SECTION 15450
PLUMBING EQUIPMENT
PART 1 - GENERAL
1.1 SUMMARY
1.1.1. Section Includes:
a. Water Heaters.
b. Water storage tanks.
c. Sump Pumps.
1.1.2. Related Sections:
a. Section 01042 - Mechanical, Refrigeration, Food Service Equipment and Electrical Coordination.
b. Section 01400 - Quality Control.
c. Section 01720 – [Phased Turnover and] Project Closeout.
d. Section 15140 - Supports and Anchors.
e. Section 15240 - Vibration Isolation and Seismic Restraints.
f. Division 16 – Electrical.
1.2 QUALITY CONTROL
1.2.1. The following publications form a part of this specification to the extent they are applicable:
a. Section 01400 – Quality Control.
b. ASHRAE 90A - Energy Conservation in New Building Design.
c. ASME Section 8D - Pressure Vessels.
d. NFPA 30 - Flammable and Combustible Liquids Code.
e. NFPA 54 - National Fuel Gas Code.
f. NFPA 70 - National Electrical Code.
1.3 SUBMITTALS
1.3.1. Submittals for Review:
a. Section 01400 - Submittals: Procedures for submittals.
b. Product Data:
(1) Provide dimension drawings of water heaters indicating components and connections to other equipment and piping.
(2) Indicate pump type, capacity, and power requirements.
(3) Provide certified pump curves showing pump performance characteristics with pump and system operating point plotted. Include NPSH curve when applicable.
(4) Provide electrical characteristics and connection requirements.
c. Shop Drawings:
(1) Indicate heat exchanger dimensions, size of tappings, and performance data.
(2) Indicate dimensions of tanks, tank lining methods, anchors, attachments, lifting points, tappings, and drains.
d. Operation and Maintenance Data.
1.3.2. Submittals For Information:
a. Section 01400 - Quality Control: Procedures for submittals.
b. Manufacturer's Instructions.
1.3.3. Submittals At Project Closeout:
<insert project name and location>
June 2010
PLUMBING EQUIPMENT
15450 -1
a. Section 01720 – [Phase Turnover] and Contract Closeout.
b. Project Record Documents: Record actual locations of components.
c. Operation and Maintenance Data: Include operation, maintenance, and inspection data, replacement part numbers and availability, and service depot location and telephone number.
d. Warranty: Submit water heater manufacturer warranty and ensure forms have been completed in Owner's name and registered with manufacturer.
e. The Contractor shall submit all certifications and testing data as a supplement to previously submitted O & M manuals at contract closeout.
1.4 QUALITY ASSURANCE
a. Manufacturer Qualifications: Company specializing in manufacturing the Products specified in this section with minimum five years documented experience.
b. Provide pumps with manufacturer's name, model number, and rating/capacity identified.
c. Ensure products and installation of specified products are in conformance with recommendations and requirements of the following organizations:
(1) American Gas Association (AGA).
(2) National Sanitation Foundation (NSF).
(3) American Society of Mechanical Engineers (ASME).
(4) National Board of Boiler and Pressure Vessel Inspectors (NBBPVI).
(5) National Electrical Manufacturers' Association (NEMA).
(6) Underwriters Laboratories (UL).
d. Ensure pumps operate at specified system fluid temperatures without vapor binding and cavitation, are non-overloading in parallel or individual operation; operate within 25 percent of midpoint of published maximum efficiency curve.
1.5 REGULATORY REQUIREMENTS
a. Conform to AGA, NSF, NFPA 54 requirements for water heaters.
b. Conform to ASME Section 8D for tanks.
c. Products Requiring Electrical Connection: Listed and classified by Underwriters Laboratories Inc., as suitable for the purpose specified and indicated.
1.6 DELIVERY, STORAGE, AND PROTECTION
1.6.1. Section 01042 - Mechanical, Refrigeration, Food Service Equipment and Electrical Coordination.
a. Provide temporary inlet and outlet caps. Maintain caps in place until installation.
1.7 WARRANTY
1.7.1. Section 01720 - Phase turnover and Contract Closeout.
a. Provide five year manufacturer warranty for domestic water heaters and water storage tanks.
1.8 EXTRA MATERIALS
1.8.1. Section 01720 - Phase Turnover and Contract Closeout. Maintenance Data.
a. Provide two pump seals.
PART 2 - PRODUCTS
2.1 COMMERCIAL ELECTRIC WATER HEATERS
a. Type: Factory-assembled and wired, electric, vertical, horizontal storage.
b. Tank: Glass lined welded steel; thermally insulated with minimum 2 inches, glass fiber or polyurethane encased in corrosion-resistant steel jacket; baked-on enamel finish.
c. Controls: Automatic immersion water thermostat; externally adjustable temperature range from 60 to 180 degrees F (16 to 82 degrees C), flanged or screw-in nichrome elements, high temperature limit thermostat.
d. Accessories: Brass water connections and dip tube, drain valve, magnesium anode, and ASME rated temperature and pressure relief valve.
2.2 COMMERCIAL GAS FIRED WATER HEATERS
a. Packaged, integrated, separated combustion water heater with storage tank, controls, circulators and local piping. See drawings for performance.
b. Heater design shall be [copper tubes having extruded integral fins and mounted in accessible cast iron headers with an insulated enameled steel jacket.] [condensing flue coil, glass coated on the flue gas side.] Pressure rating shall be 160 psig. Efficiency shall be [82%] [92%].
c. [Factory installed bronze circulating pump(s) shall be provided.]
d. Glass lined steel tank, ASME labeled; 2 inches glass fiber, encased in corrosion-resistant steel jacket; baked-on enamel finish; built in drain pan, floor shield and legs.
e. Accessories: Brass water connections and dip tube, drain valve, magnesium anode, and ASME rated temperature and pressure relief valve.
f. Approval: By AGA as automatic storage water heater for operation at 180 degrees F.
g. Controls: Automatic direct immersion thermostat with temperature range adjustable minimum 140 degrees F differential, automatic reset high temperature limiting thermostat factory set at 195 degrees F, gas pressure regulator, multi-ribbon or tabular burner, 100 percent safety shut-off pilot and thermocouple, draft proving switch, intermittent electronic ignition monitoring pilot and main flame, trial for re-ignition for momentary loss of flame, shut down or pilot and main burner in 2-4 seconds after loss of flame, and power venter.
2.3 [IN-LINE CIRCULATOR PUMPS]
a. Casing: Bronze, rated for 125 psig working pressure, with stainless steel rotor assembly.
b. Impeller: Bronze.
c. Shaft: Alloy steel with integral thrust collar and two oil lubricated bronze sleeve bearings.
d. Seal: Carbon rotating against a stationary ceramic seat.
e. Drive: Flexible coupling.
f. Strap on aquastst wired to cycle hot water recirculating pumps.
2.4 [SUMP PUMPS] [SEWAGE EJECTORS]
a. Type: Vertical centrifugal, direct connected, [simplex] [duplex] arrangement.
b. Impeller: [Cast iron;] [Bronze;] [open non-clog,] [closed,] keyed to [corrosion resistant alloy steel] [stainless steel] shaft.
c. Support: Cast iron pedestal motor support on steel floor plate with gas tight gaskets.
d. Bearings: [Forced grease] [oil] lubricated bronze sleeve spaced maximum 48 inches (1200 mm) and grease lubricated ball thrust at floor plate
e. Drive: Flexible coupling to vertical, solid shaft ball bearing electric motor.
f. Sump: Steel cover plate [with steel curb frame for grouting into concrete sump] [on steel sump basin] with inspection opening and cover, and alarm fittings.
g. Controls (Duplex): float operated mechanical alternator with float rod, stops, and corrosion resistant float to alternate operation of pumps, cut-in second pump on rising level or lead pump failure, [separate pressure switch high level alarm with transformer, alarm bell, and standpipe,] [and extra set of wired terminals for remote alarm circuit] [and emergency float switch with float rod, stops, and corrosion resistant float to operate both pumps on failure of alternator].
2.5 SUBMERSIBLE [SUMP PUMPS] [SEWAGE EJECTORS]
a. Type: Completely submersible, vertical, centrifugal.
b. Casing: [Cast iron] [Bronze] pump body and oil filled motor chamber.
c. Impeller: [Cast iron;] [Bronze;] [open non-clog,] [closed,] [stainless steel] [corrosion resistant alloy steel] shaft.
d. Bearings: Ball bearings.
e. Sump: Fiberglass basin with steel cover plate; [ ] inches ([ ] mm) diameter, [ ] inches ([ ] mm) deep.
f. Accessories: Oil resistant [6 foot (2 m)] [ [ ] foot ([ ] m) cord and plug [with three-prong connector] for connection to electric wiring system [including grounding connector].
g. Servicing: slide-away coupling consisting of discharge elbow secure to sump floor, movable bracket, guide pipe system, lifting chain and chain hooks.
h. Controls: Integral [diaphragm] [mercury switch] type level controls [with separate liquid level control high level alarm].
PART 3 - EXECUTION
3.1 INSTALLATION
a. Install water heaters in accordance with manufacturer's instructions and to AGA requirements.
b. Coordinate with plumbing piping and related fuel piping, gas venting, and electrical work to achieve operating system.
c. Wire circulating pump controls.
END OF SECTION
<insert project name and location>
June 2010
PLUMBING EQUIPMENT
15450 -1