DEPARTMENT OF MILITARY AFFAIRS ORLANDO NTC NATIONAL GUARD ARMORY FORCE PROTECTION #214001

Transcription

1 SECTION PLANTING IRRIGATION PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and other Division 1 Specification Sections, apply to this Section. 1.2 SUMMARY A. The work covered under this section includes supplying and installing all materials and equipment required for a complete operational automatic irrigation system. The irrigation system shall provide the minimal requirements to meet the City of Orlando standardsgovernment relations as related to the City s landscape and irrigation ordinances. B. The information herein contained indicates the types of materials, quality of workmanship and manner of protection which shall be complied with in effecting the irrigation system. C. Completion of work shall mean the full and exact compliance and conformity with all the provisions of the Contract Documents. 1.3 SUBMITTALS: See DIVISION ONE, SECTION SUBMITTALS A. Provide manufacturer s product data sheets for each item specified. B. Due to maintenance and repair issues, substitutions shall requested by the contractor. C. Provide a one year warranty from the date of Substantial Completion to cover all defective material and workmanship. 1.4 RELATED WORK: A. The Contractor shall fully acquaint himself with related planting, paving, site, and utilities work described elsewhere in the Contract Documents to preclude any misunderstandings and to facilitate a trouble-free irrigation system. B. Electrical service to controller shall be provided by electrical subcontractor and shall be in compliance with NEC requirements. Coordinate with DIVISION 26 and system manufacturer s installation requirements for voltage requirements. SECTION PLANTING IRRIGATION

2 C. See SECTION PLANTS and SECTION TURF AND GRASSES. First two paragraphs below are defined in Division 01 Section "Submittal Procedures" as "Action Submittals." D. See DIVISION 31 EARTHWORK (and related referenced sections) for excavating, trenching and backfilling. 1.5 QUALITY ASSURANCE A. Landscape irrigation system installation shall only be performed by a firm that has a minimum of five (5) years full time experience with similar projects in the successful installation of underground landscape irrigation systems. The firm shall be state certified or a licensed sub- contractor or a locally registered subcontractor in Orange County, Florida. Crews shall be controlled and directed by a foreman who is thoroughly familiar with the type of materials being installed and the manufacturer's recommended methods of installation. B. Manufacturer s Qualifications: Employ only manufacturers with at least five (5) years experience making the specified materials as a current catalog and regular production item. 1.6 DESIGN MODIFICATIONS A. Slight layout modifications may be made only as necessary to meet field conditions and only as acceptable to the Owner. Piping shown on drawings is diagrammatically routed for clarity route to avoid conflict with specimen plants and adjust as necessary to landscape construction. B. Design Criteria: The Owner shall have the right, at any stage of the operations, to reject any and all work and materials, which, in their opinion, do not comply with the requirements of the Contract Documents. Such rejected work or material shall be immediately removed from the site and acceptable work or material substituted in its place. C. Contractor shall be responsible for verification at the site of all conditions and dimensions shown on the drawings prior to commencement of work. 1.7 REQUIREMENTS OF REGULATORY AGENCIES A. Work shall comply with applicable codes, ordinances and regulation of all governing authorities including the current Florida Building Code and State Requirements for Educational Facilities (SREF). If re-use/grey water is utilized as a water source for irrigation then the water shall meet D.O.H. and D.E.P. water quality standards and other applicable F.A.C. Rules pertaining to provision of signage, hose connections, watering times and use of low trajectory nozzles around public eating and drinking facilities. If re- SECTION PLANTING IRRIGATION

3 use/grey water is used, it will also be the contractors responsibility to provide reclaim water signs at all campus entrances. 1.8 AS BUILT DRAWING/CLOSEOUT SUBMITTALS A. After completion of piping installation, the Contractor shall furnish to the Owner a reproducible AS-BUILT drawing showing all sprinkler heads, valves, and pipelines to reasonable scale, and provide a minimum of two dimensions taken from fixed obvious objects to point of connection, directional turns of all mainline piping, each automatic an manual control valve, and quick coupling valve, the plans shall be provided on or before the date of work review for provisional acceptance. 1. The contractor shall also furnish a drawing showing a graphic representation of sprinkler zones and recommendations for controller time settings for each valve. B. Instruction sheets and parts lists covering all operating equipment shall be bound into folders and furnished to the Owner. 1.9 UTILITIES A. Prior to excavation, verify in the field the location and depth of all new and existing utilities and other work that may be damaged by the Contractor s construction GUARANTEES A. The Contractor shall furnish warranties, in writing, certifying that the quality and workmanship of all materials and installation furnished is in accordance with the Contract Documents, Division One of the Project Manual and in accordance with the original manufacturer s warranties. 1. The Contractor shall be responsible for fulfillment of all manufacturers warranties. 2. The Contractor shall guarantee materials and workmanship for a period of one year from date for granting Substantial Completion by Owner or as stated in Division One of the Project Manual, whichever is greater. B. The Contractor is responsible for protection of the work until the date of Final Completion. SECTION PLANTING IRRIGATION

4 1.11 DELIVERY, STORAGE, AND HANDLING A. Deliver piping with factory-applied end caps. Maintain end caps through shipping, storage, and handling to prevent pipe-end damage and to prevent entrance of dirt, debris, and moisture. B. Store plastic piping protected from direct sunlight. Support to prevent sagging and bending PROJECT CONDITIONS A. Interruption of Existing Water Service: Do not interrupt water service to facilities occupied by Owner or others unless permitted under the following conditions and then only after arranging to provide temporary water service according to requirements indicated: 1. Notify Construction Manager no fewer than two days in advance of proposed interruption of water service. PART 2 - PRODUCTS 2.1 ACCEPTABLE MANUFACTURERS SUMMARY A. Rain Bird Sprinkler Mfg. Corporation B. Hunter Industries Incorporated C. Uni-weld D. Irritrol E. King Innovation low voltage wire nut (tan) 2.2 MATERIALS A. Materials and equipment shall be new and shall operate at the manufacturer s published capacities. 2.3 PIPES, TUBES, AND FITTINGS A. Comply with requirements in the piping schedule for applications of pipe, tube, and fitting materials, and for joining methods for specific services, service locations, and pipe sizes. SECTION PLANTING IRRIGATION

5 1. Plastic Pipe Extruded for 100% virgin purple PVD, ASTM, 200 PSI. 2. PVC Pipe, Pressure and non-pressure side of valve: ASTM, Class 200 PVC Purple. 3. Socket Fittings: ASTM, Type 2, IPS, Schedule 40 NSF, as manufactured by Sloan Mfg. Company or Lesco. 4. PVC Socket Unions: Construction similar to MSS SP-107, except both headpiece and tailpiece shall be PVC with socket or threaded ends. 5. PVC flex IPS hose with glued fitting shall be used between fitting and irrigation head equal to or less than ¾ inlet. 6. Swing joints shall be used on irrigation heads that are 1 and larger. 7. Sleeves under pavement shall be ASTM, Schedule 40 PVC, White. 2.4 PIPING JOINING MATERIALS A. Solvent Cement for Joining PVC Piping: Uni-weld Heavy Gray Cement is only acceptable product. Include primer according to ASTM F 656. Solvent Cleaner shall be ASTM-A 2546 standards and be all purpose plastic pipe cleaner. B. Plastic, Pipe-Flange Gasket, Bolts, and Nuts: Type and material recommended by piping system manufacturer unless otherwise indicated. 2.5 MANUAL VALVES A. Bronze Gate Valves: 1. Provide product indicated on Drawings or comparable product by one of the following: a. American Valve, Inc. b. Crane Co. c. Milwaukee Valve Company. d. NIBCO INC. e. Watts Regulator Co.; a division of Watts Water Technologies, Inc. 2.6 PRESSURE-REDUCING VALVES A. Water Regulators: SECTION PLANTING IRRIGATION

6 1. Back Flow Preventer: a. An existing well is the water source so a BFP is not required. 2.7 AUTOMATIC CONTROL VALVES A. Plastic, Automatic Control Valves: 1. Valves shall be Rainbird PESB. Use Teflon tape only on threaded connections. Only one valve shall be placed in a single valve box. 2.8 BOXES FOR AUTOMATIC CONTROL VALVES A. Plastic Boxes: 1. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: a. Armorcast Products Company. b. Carson Industries LLC. c. Nationwide Plastics, Inc. d. NewBasis. e. Oldcastle, Inc. f. Orbit Irrigation Products, Inc. g. USFilter/Plymouth Products, Inc. 2. Description: Box and cover, with open bottom and openings for piping; designed for installing flush with grade. a. Size: 12 x 17 b. Each valve shall have a Christy zone tag inside the box. c. Color: Purple and marked IRRIGATION. 2.9 TRANSITION FITTINGS A. General Requirements: Same size as, and with pressure rating at least equal to and with ends compatible with, piping to be joined SPRINKLERS A. General Requirements: Designed for uniform coverage over entire spray area indicated at available water pressure. B. Plastic, Pop-up, Impact-Drive Rotary Sprinklers shall be: SECTION PLANTING IRRIGATION

7 1. Hunter PROS or approved equal. C. Plastic, Pop-up Spray Sprinklers: 1. Hunter PROS or approved equal. D. Shrub Risers: 1. Hunter MPR40 nozzles on fixed risers painted black, refer to plan and schedule for types. E. Bubblers: 1. Rainbird flood bubbler QUICK COUPLERS A. Basis-of-Design Product: Subject to compliance with requirements, provide product indicated on Drawings or comparable product by one of the following: 1. Rain Bird Corporation. 2. Toro Company Irrigation Division. B. Description: Factory-fabricated, bronze or brass, two-piece assembly. Include coupler water-seal valve; removable upper body with spring-loaded or weighted, rubber-covered cap; hose swivel with ASME B1.20.7, 3/4-11.5NH threads for garden hose on outlet; and operating key. 1. Locking-Top Option: Vandal-resistant locking feature. Include two matching key(s) CONTROLLER A. Rainbird ESP8LXME with 1 EXPLMSM4 (12 STATION CLOCK) 1. Contractor shall follow all Manufacturer s installation requirements. B. Moisture Sensor: Adjustable from one to seven days, to shut off water flow during rain. C. Wiring: UL 493, Type UF multiconductor, with solid-copper conductors; insulated cable; suitable for direct burial. a. Feeder-Circuit Cables: No. 12 AWG minimum, between building and controllers. b. Low-Voltage, Branch-Circuit Cables: No. 14 AWG minimum, between controllers and automatic control valves; color-coded different from feeder-circuit-cable jacket color; with jackets of different colors for multiple-cable installation in same trench. SECTION PLANTING IRRIGATION

8 c. Splicing Materials: Manufacturer's packaged kit consisting of insulating, spring-type connector or crimped joint and epoxy resin moisture seal; suitable for direct burial. D. Rainbird RSD-BEX Rain Sensor 1. Mount on a flat surface or pole mounting within 60 of controller, not higher than 10 ft. above grade, as directed by Owner. Control wiring shall be in an electrical schedule 80 PCV rigid conduit. Paint to match building CONTROL WIRING A. All wiring to automatic circuit valves shall be UF-14 (14 gauge) UL approved, direct burial wire of a different color that the black and white wires used on the 115 volt AC power. 18 gauge multi-strand wire shall be used from the controller to a wall mounted junction box below the controller and shall be connected to the 14 gauge zone wires. B. Wiring from the controller to the valves shall be installed in same trench as the mainline where possible. Where wires are not placed in the trench with the mainline, install in schedule 40 PVC conduit, minimum 24 below grade. C. All splices shall be made with King One-step Connectors. D. All wire shall be furnished in minimum 2,500 reels and spliced only at valve or tee locations. PART 3 - EXECUTION 3.1 INSPECTION A. Contractor must examine the areas and conditions under which landscape irrigation system is to be installed and notify the Owner in writing of conditions detrimental to the proper and timely completion of the work. Do not proceed with the work until unsatisfactory conditions have been corrected. 3.2 COORDINATION A. Crossings (sleeves) under paved areas (such as sidewalks, roadways, and parking lots) as indicated on the plans, shall be installed by the Contractor. B. Crossings shall be installed prior to construction of paving. SECTION PLANTING IRRIGATION

9 C. The Contractor shall be responsible for coordinating his work with all other parties involved with the project, and shall coordinate the supply of electrical power to the Controller and tie-in into the grounding system. D. The Contractor shall be responsible for full and complete coverage of all irrigated areas and shall make any necessary minor adjustments at no additional cost to the Owner. 3.3 EXCAVATING AND TRENCHING A. Perform all excavations as required for the installation of the work included under this section. Where major root systems of large trees are encountered, including roots 2 diameter or larger, tunnel to avoid cutting the roots. B. Restore all surfaces, existing underground installations, damaged or cut as a result of the excavations to their original conditions. C. Install warning tape directly above pressure piping, 12 inches below finished grades, except 6 inches below subgrade under pavement and slabs. D. Provide minimum cover over top of underground piping according to the following: minimum cover over Irrigation Main Piping minimum cover over Control Wires minimum cover over Circuit Piping (laterals) cover over sleeves E. Where possible, install pipe adjacent to curbs or paving to minimize interference with plants and their roots. F. Keep trenches free of obstruction and debris. Remove excess soil from the site and leave grade as it was prior to irrigation system installation. G. Piping shall be routed around shrubs, trees, and other permanent obstacles. 3.4 PREPARATION A. Set stakes to identify locations of proposed irrigation system. Obtain Owner's approval before excavation. 3.5 PIPING INSTALLATION A. Location and Arrangement: Drawings indicate location and arrangement of piping systems. Install piping as indicated unless deviations are approved on Coordination Drawings. B. Install piping free of sags and bends. SECTION PLANTING IRRIGATION

10 C. Install groups of pipes parallel to each other, spaced to permit valve servicing. D. Install fittings for changes in direction and branch connections. E. Install underground thermoplastic piping according to ASTM D F. Lay piping on solid subbase, uniformly sloped without humps or depressions. G. Install PVC piping in dry weather when temperature is above 40 deg F. Allow joints to cure at least 24 hours at temperatures above 40 deg F before testing. H. Install water regulators with shutoff valve and strainer on inlet and pressure gage on outlet. Install shutoff valve on outlet. Install aboveground or in control-valve boxes. I. Install piping in sleeves under parking lots, roadways, and sidewalks. J. All piping and wiring passing under existing or future paving, construction, etc. shall be encased in sleeving as specified, extending at least 12 beyond edges of paving base or construction. 3.6 JOINT CONSTRUCTION A. Ream ends of pipes and tubes and remove burrs. Bevel plain ends of steel pipe. B. Remove scale, slag, dirt, and debris from inside and outside of pipe and fittings before assembly. C. PVC Piping Solvent-Cemented Joints: Clean and dry joining surfaces. Join pipe and fittings according to the following: 1. Comply with ASTM F 402 for safe-handling practice of cleaners, primers, and solvent cements. 2. PVC Pressure Piping: Join schedule number, ASTM D 1785, PVC pipe and PVC socket fittings according to ASTM D Join other-than-schedule-number PVC pipe and socket fittings according to ASTM D PVC Nonpressure Piping: Join according to ASTM D D. Pipe and fittings shall be thoroughly cleaned of dirt, dust and moisture before applying solvent with non-synthetic bristle brush. Care should be taken not to use an excess amount of solvent, thereby causing a burr or obstruction to form on the inside of the pipe. Allow the joints to set at least 24 hours before applying pressure on PVC pipe. Flush main and lateral piping on irrigation system to clean out all debris and sediment prior to the installation of heads and nozzles. SECTION PLANTING IRRIGATION

11 3.7 VALVE INSTALLATION A. Control Valves: Valves shall be a minimum of 6-inches from the top of the valve to finish grade. Install in lawn areas, not planting beds. When valves are grouped, allow for six (6) feet between valves. Install no closer than 12 to weld edges, buildings, and walls. 3.8 SPRINKLER INSTALLATION A. Install sprinklers after hydrostatic test is completed. B. Sprinkler heads shall be raised or lowered after the installation of sod or landscape materials. C. Use flex hose to connect sprinkler head to PVC piping. D. Use swing joints to connect sprinkler heads to PVC piping in athletic field. E. Install in an upright plumb position and even with finish grade (before sod installation). F. All heads shall be set flush to within ½ and 6 away from curb or walk. G. Shrub riser installation-riser shall be staked and attached with a 1 x 1 x 48 angle iron installed 24 below grade. Angle iron and riser shall be painted black. Direct spray from sprinkler heads away from building. 3.9 BACKFILLING AND COMPACTING A. After pressure testing is complete and systems are approved, or sections thereof, backfill excavations and trenches with clean soil, free of rubbish. Dress off all areas to finish grades. Repeat backfilling as required due to settlement. B. Balance and adjust the irrigation system components for efficient, proper operation, this includes controller synchronization as well as individual controller stations, valves and sprinkler head adjustments. Do not allow over-spray on buildings, walkways or other paving or on automobiles AUTOMATIC IRRIGATION-CONTROL SYSTEM INSTALLATION A. Equipment Mounting: Install controller on wall. 1. Place and secure anchorage devices. Use setting drawings, templates, diagrams, instructions, and directions furnished with items to be embedded. 2. Install anchor bolts to elevations required for proper attachment to supported equipment. SECTION PLANTING IRRIGATION

12 3.11 RAIN SENSOR A. Install rain tipping bucket on exposed surface that is unobstructed from rainfall. Install rain sensor control wiring in rigid conduit as detailed CONNECTIONS A. Comply with requirements for piping specified in Division 22 Section "Facility Water Distribution Piping" for water supply from exterior water service piping, water meters, protective enclosures, and backflow preventers. Drawings indicate general arrangement of piping, fittings, and specialties. B. Install piping adjacent to equipment, valves, and devices to allow service and maintenance. C. Connect wiring between controllers and automatic control valves. D. Electrical: Four (4) 14-1 wires shall be installed, continuous in one run with no junctions running from the irrigation P.O.C. in rigid conduit to the irrigation timer. The wire run shall be no longer than 2,000 ft. 1. The flow sensor shall have one black wire and one red wire. Wires shall be marked Flow Sensor at P.O.C. and Timer. 2. The master valve shall have one yellow wire and one blue wire. Wires shall be marked Master Valve at P.O.C. and Timer. 3. The four (4) wires shall each be 20 ft. longer than the P.O.C. and the extra wire shall be installed in a valve box at P.O.C. and shall run into timer if the Calsense Smart System controller is not used LABELS A. Number each zone valve box on inside of valve box with a Christy zone tag. Numbers shall match the zone numbers on the drawings. B. Number each zone valve wire at the controller with a waterproof marker and tags. Numbers shall match the zone numbers on the drawings FIELD QUALITY CONTROL/TESTS A. Pressure: After all joints have been made and set at least 24 hours, flush out lines and hydrostatically test irrigation main at a pressure two times the operating pressure (100 psi) in the presence of the Grounds Department Representative or Owner s Representative. Pressure will be maintained on pipe for not less than six hours with a minimum of 2 psi drop. Should any leaks be found, the main will be repaired and the line retested until satisfactory. All lateral lines downstream from the remote control valves will be visually inspected for leaks. Should any be found, they will be repaired. SECTION PLANTING IRRIGATION

13 The line shall then be retested until satisfactory (Pressure tank must be isolated from main line during this test). B. Coverage: When the sprinkler system is completed the contractor, in the presence of the Owner's Representative, will perform a coverage test to determine if the covering of plant areas is complete and adequate. C. All testing shall be completed prior to backfilling trenches CLEANUP A. During the course of installation, excess and waste materials will be continuously and promptly removed, area kept clear and all reasonable precautions taken to avoid damage to existing structures, plants and grass. When installation in an area has been completed, area will be thoroughly cleaned up. Debris, rubbish and waste materials will be cleaned up and removed from property STARTUP SERVICE A. Perform startup service. 1. Complete installation and startup checks according to manufacturer's written instructions. 2. Verify that controllers are installed and connected according to the Contract Documents. 3. Verify that electrical wiring installation complies with manufacturer's submittal ADJUSTING A. Adjust settings of controllers. B. Adjust automatic control valves to provide flow rate at rated operating pressure required for each sprinkler circuit. C. Adjust sprinklers and devices, except those intended to be mounted aboveground, so they will be flush with, or not more than 1/2 inch above, finish grade DEMONSTRATION AND PUNCH LIST A. When the contractor is complete with the irrigation system and is sure it is ready to turn over a meeting with the Owner s maintenance personnel, the Irrigation Contractor, the Landscape Architect and the Owner will be scheduled. Each component of the system will be reviewed. The controller will be inspected, each zone will be reviewed, valves boxes will be looked at, etc. SECTION PLANTING IRRIGATION

14 B. B. Coverage: When the sprinkler system is completed the contractor, in the presence of the Grounds Department Irrigation Representative, will perform a coverage test to determine if the covering of plant areas is complete and adequate MAINTENANCE A. Maintain the irrigation system until the date of Final Completion. B. Maintenance shall include work, materials, and replacements necessary to unsure a complete properly operating system OWNERS RESPONSIBILITY A. It is the Owner s responsibility to maintain the system in working order during the guarantee period, performing necessary minor maintenance, keeping grass from obstructing the sprinkler heads and preventing vandalism and damage during the landscape maintenance operation. END OF SECTION SECTION PLANTING IRRIGATION