SECTION HVAC PUMPS. A. Provide centrifugal HVAC pumps, called for in drawing schedule, and as needed for a complete and proper installation.

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1 PART 1 - GENERAL 1.01 DESCRIPTION OF WORK SECTION HVAC PUMPS A. Provide centrifugal HVAC pumps, called for in drawing schedule, and as needed for a complete and proper installation. B. Provide variable speed packaged pumping system with the following items: structural steel base; pumps and motors; variable frequency drives with LonWorks cards, piping, valves and fittings; sequencing controls; pressure and temperature transmitters RELATED SECTIONS A. Division 26 Sections 1.03 SUPPLEMENTAL SUBMITTALS A. Product Data: Submit current accurate pump characteristic performance curves with selection points clearly indicated. B. Shop Drawings: Schedule: Pump schedule showing pump specifications, application, layout and connections. D. Wiring Diagrams: Submit manufacturer s electrical requirements for the power supply wiring to the packaged pumping system. Power supply wiring shall be provided by the Division 26 Electrical Contractor. Submit manufacturer s wiring diagrams for interlock and control wiring. Clearly differentiate between portions of wiring that are factory installed and portions to be field installed by the Temperature Control System Contractor. E. Provide a set of manufacturer s warranties for all equipment supplied. F. Maintenance Data. 1. Maintenance Manual G. Certificate: Contractor s start-up and demonstration affidavit SUPPLEMENTAL QUALITY ASSURANCE A. Codes and Standards HVAC PUMPS

2 1. HI Compliance: Design, manufacture and install HVAC pumps in accordance with HI: Hydraulic Institute Standards. 2. UL Compliance: Design, manufacture and install HVAC pumps in accordance with UL 778: Motor Operated Water Pumps. B. Supply nameplate data on pumps and drives. C. Before submitting any equipment shop drawings for approval, the HVAC Contractor, Automatic Temperature Controls Contractor and the Equipment Vendor and Manufacturer shall coordinate the controls required for the system WARRANTY A. The warranty shall include parts, labor, and travel costs incurred by the manufacturer to provide factory authorized on-site services. Equipment submittals will not be approved until submission of the manufacturer s warranty indicating compliance with the above. PART 2 - PRODUCTS 2.01 MATERIALS AND MANUFACTURERS A. Pumps of the same type shall be manufactured by the same manufacturer. B. In-Line Circulating Pumps 1. Provide in accordance with the following: a. Type: Horizontal mount, vertical split case, oil-lubricated, designed for 125 psi working pressure and 225ºF continuous water temperature. b. Body: Cast iron, with suction and discharge gage tappings. c. Shaft: Manufacturer to specify type of hardened alloy steel. d. Bearings: Oil-lubricated bronze ball bearings with an oil level indicator. e. Seal: Mechanical, with carbon seal ring and ceramic seat. f. Motor: Non-overloading at any point on pump curve, open, drip-proof, oil-lubricated ball bearings, resilient mounted construction, built-in thermal overload protection on single phase motors. g. Coupling: Self-aligning flexible coupling. HVAC PUMPS

3 h. Impeller: Enclosed type, hydraulically and dynamically balanced, and keyed to shaft. 2. Manufacturers: Allied Pump Corporation Thrush Company Inc. (formerly Amtrol Inc.) Armstrong Pumps Inc. Aurora Pump; Division of Pentair Pump Group Bell & Gossett ITT; Fluid Handling Div MEPCO (formerly Dunham-Bush, Inc.) Peerless Pump; a Member of the Sterling Fluid Systems Group Patterson Pump Co.; a Subsidiary of the Gorman-Rupp Co Taco, Inc. Weinman; Div of Crane Pumps & Systems PACO Pumps Grundfos Pumps Corporation Or Equal c. Motor Enclosures and Temperature Rise: Motors subject to excessive dust or abrasive shall be of the totally enclosed type. Motors subject to dripping oil or water shall be of the drip proof or otherwise enclosed type. Conditions constituting a hazard from an explosive standpoint shall require a motor of the explosion proof class. Temperature rise with Class "A" insulation shall be based on the following: Open frame: 40ºC.; totally enclosed and fan cooled: 55ºC. Temperature rises shall conform to A.I.E.E. Standards for continuous and/or short time rated motors. All motors, motor starters, variable frequency drives. D. Vibration Isolation: Provide vibration isolation in accordance with requirements specified in the Section Consult with the supplier of vibration isolation devices concerning the selection of the types required. PART 3 EXECUTION 3.01 SUPPLEMENTAL INSTALLATION A. Install pumps in accordance with the following: 1. Access: Provide access space around pumps for service, but in no case less than that recommended by the manufacturer. 2. Install in-line pumps in piping system with supports and vibration isolators recommended by the manufacturer. HVAC PUMPS

4 3. Support: Install base-mounted pumps on a minimum of 4" high concrete base with anchor bolts poured in place. Set and level pump, grout under pump base with non-shrink grout. (Refer to Concrete requirement in the appropriate sections of Division-3). Install pumps on vibration isolators. B. Electrical Wiring 1. The Division 16 Contractor shall install electrical devices furnished by manufacturer but not specified to be factory-mounted. Furnish copy of manufacturer's wiring diagram submittal to Electrical. Verify that electrical wiring installation is in accordance with manufacturer s submittal and installation requirements of Division 16 Sections. Do not proceed with equipment start-up until wiring installation is acceptable. 2. The Temperature Control System Contractor shall provide the control wiring between field-installed controls, indicating devices, and pump control panels in accordance with Specification Section The Temperature Control System Contractor shall provide integration of monitoring and alarm functions by integrating the pumping system into the Building Management System/Direct Digital Control, BMS/DDC, if BMS/DDC system is provided. Reference Section 15970, Temperature Control System (LonWorks DDC). The Temperature Control System Contractor shall provide the control Sequence of Operations as defined in Section Control interlock wiring between pumps; and between pumps and field-installed control devices that are not factory installed shall be provided by Temperature Control System Contractor. Power wiring shall be provided by the Division 16 Electrical Contractor. Temperature Controls shall be provided by the Temperature Control System Contractor in accordance with the Authority s Requirements and Specifications and the Facility Management Systems Integrator requirements Specification Section C. Piping Connections: Provide piping, valves, accessories, gauges, supports, and flexible connections INTERDISCIPLINARY TESTS AND FUNCTIONAL PERFORMANCE TESTS A. Interdisciplinary Pre-Start-Up and Start-Up Tests: The Contractor shall conduct interdisciplinary pre-start up and start up tests as per the manufacturer s start up procedures. Contractor shall submit signed start up affidavit signed by the factory authorized service representative indicating that all of the manufacturer s pre-start up and start up procedures have been successfully completed. HVAC PUMPS

5 B. Functional Performance Tests: Contractor shall also submit signed functional performance testing affidavit signed by the factory authorized service representative indicating that all of the manufacturer s functional performance tests have been successfully completed COMMISSIONING OF PUMPS AND VARIABLE FREQUENCY DRIVES A. All testing for hot water piping shall be completed prior to commencement of the commissioning process. HVAC PUMPS