8-25-047 Fred Arbanas Golf Course Planting Irrigation (scope Area 1)..pdf

Fred Arbanas Golf Course Irrigation Improvements Olsson Project M23-01123 Jackson County, Missouri

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SECTION 328400

PLANTING IRRIGATION (SCOPE AREA #1)

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes furnishing all labor, materials, accessories and equipment, and performing all operations necessary for the complete installation of the non-potable landscape irrigation system, permits and including items listed below:

1. Piping.

2. Manual valves.

3. Automatic control valves.

4. Automatic drain valves.

5. Spray and rotor heads.

6. Driplines.

7. Quick couplers.

8. Central and integrated control components and features.

9. Boxes for automatic control valves and equipment.

10. Transfer and irrigation supply pump stations and pump houses

11. Weather station

B. Central Irrigation Control System

1. The construction includes integrated control field components connected to central control software.

2. Power shall be provided to the transfer pump and irrigation supply pump stations by electrical contractor. Final connection by irrigation contractor.

3. Communication drops shall be provided to the transfer pump and supply pump locations. Final connection by irrigation contractor.

C. Basis for Design

1. The basis of design for the new Irrigation System shall be as manufactured by

Hunter Irrigation Systems and the basis of design for the Transfer and Irrigation Supply pumps shall be as manufactured by Munro Pumps as specified herein.

These standards and specifications shall be considered minimum level of design and performance expected by the County. It is the intent of the County to encourage diversity and competition in the bid responses, and other manufacturers will be considered if they meet or exceed the general and standard specifications.

All equipment and work must comply with Federal, State, and Local codes.

D. All bids should reflect a total “turn-key” installation for the site. This would include all equipment necessary to design and install transfer pump and irrigation supply pump stations, including pump houses, necessary wet well work, necessary wiring, communications equipment, electrical service, water supply and lines needed to communicate with the new central irrigation control system. Each bid shall include all equipment and labor necessary to provide a “turn-key” installation.

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E. The contractor shall include a proposed schedule, with projected time frame and phasing of work for installing the system with their proposal. It should reflect, in calendar days, the anticipated time required from the day of the award to completion of the system in a fully operational mode. This schedule should reflect anticipated time for ordering and receiving all components, starting and ending times for installation, starting and ending times for training, system start-up, etc.

1.2 PERFORMANCE REQUIREMENTS

A. Irrigation zone control shall be central control system with integrated hub control system field control components and automatic control valves.

1.3 SEQUENCING/SCHEDULING

A. Give at least seven (7) days notice to the Landscape Architect or his representative prior to all required site visits as indicated herein.

1.4 ACTION SUBMITTALS

A. Product Data: For each type of product indicated. Include rated capacities, operating characteristics, electrical characteristics, and furnished specialties and accessories.

Only materials and items of equipment so approved shall be used.

B. Wiring Diagrams: For power, signal, and control wiring.

C. Approvals: Submit documentation of all approvals required by local, municipal, and state jurisdictions.

D. Grounding and Line Surge Protection Verification: The Irrigation Contractor is to provide written documentation and verification that each grounding device meets the manufacturer’s specified requirements for grounding and line surge protection. The tests shall be completed using an approved ground resistance tester. The manufacturer’s recommended service provider shall conduct testing.

E. Shop drawings: Irrigation Contractor shall provide shop drawings for approval by Landscape Architect and Owner or Owner’s Representative prior to ordering for the following

1. Prefabricated pump house enclosures as provided by the manufacturer.

2. Transfer pump and irrigation supply pump stations and controller(s) as provided by the manufacturer.

3. Irrigation design plans

a. Design plans shall include equipment and material list(s) and identify all equipment on plans.

b. Design plans shall be provided with all irrigation coverage shown.

1.5 INFORMATIONAL SUBMITTALS

A. Controller Timing Schedule: Indicate timing settings for each automatic controller zone.

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B. Field quality-control reports.

1.6 CLOSEOUT SUBMITTALS

A. Operational and Maintenance Data: Submit manufacturer's data in a three-ring binder, labeled and indexed

B. Record Drawings: Irrigation Contractor shall record and submit an “As-Built Drawing” which records actual installed conditions. The As-Built Drawing shall be submitted in an electronic format. Irrigation Contractor shall submit the As-Built Drawing to the Landscape Architect before work under this contract will be considered for Acceptance.

1. All isolation valve and quick coupler locations shall be shown with actual measurements to reference points in so they may be located easily in the field.

1.7 QUALITY ASSURANCE

A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.

B. Manufacturing Qualifications: Provide golf course irrigation system as a complete unit produced by acceptable manufacturers for all portions of work, including pump houses, pumps, pump and system controls, heads, valves, piping, and accessories.

C. Installer qualification: Contractor shall be a firm specializing in irrigation work with a minimum of 10 years’ experience in work of this type. The irrigation contractor shall provide written proof of attendance at a manufacturer’s supported training program regarding the installation, programming and troubleshooting for the manufacturer’s central control and integrated control-based irrigation system. These qualifications must be presented prior to any work beginning on this project.

D. Recommended Service Provider requirements: Contractor shall have the manufacturer’s recommended service provider provide commissioning of transfer pump and irrigation supply pump control systems including verification of specified irrigation components, correct wire and connectors, grounding of required components, and proper installation of communication with existing central control system.

E. Referenced Standards: American Society for Testing and Materials, Annual Book of ASTM Standards, latest edition.

F. Codes and Standards: Irrigation installation shall comply with all applicable federal, state and local governing agency requirements and to industry standards. Notify Landscape Architect immediately in writing of any discrepancies, inconsistencies, or contradictory requirements.

G. Workmanship: Install materials and equipment in a neat and professional manner following manufacturer's recommendations.

1.8 FEES AND PERMITS

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A. Work under this Section shall include all fees, permits, licenses, and required inspections by concerned governing agencies.

1.9 DELIVERY, STORAGE AND HANDLING

A. Deliver materials and equipment in such a manner as not to damage the parts or decrease the useful life of equipment.

B. Store materials away from detrimental elements. Coordinate with Owner’s Representative or General Contractor as appropriate, to secure a safe staging area.

C. Handle, load, unload, stack, and transport materials carefully to avoid damage. Handle pipe in accordance with manufacturer's recommendations.

1.10 JOB CONDITIONS

A. Prior to commencing any work required under the Contract, the Contractor shall locate all utilities, subsurface drainage, and underground construction so that proper precautions may be taken not to disturb or damage any subsurface improvements.

Damage to any of the above-mentioned items or other shall be promptly repaired by the contractor at no additional cost to the owner.

B. Non-potable and supplemental potable water service and electric service will be supplied by the General Contractor as indicated on the plans for the purpose of the automatic irrigation system.

C. Insurance on irrigation materials or equipment stored or installed is the responsibility of the Irrigation Contractor. Such insurance shall cover fire, theft, and vandalism. Should the Irrigation Contractor elect not to provide such insurance the Owner shall in no way be responsible for any losses incurred by the aforementioned acts. The Irrigation Contractor is responsible for all costs incurred in replacing damaged or stolen materials or equipment prior to Substantial Completion of the Work.

D. Obtain all required permits and pay all required fees at no additional cost to the Owner.

Any penalties imposed due to failure to obtain permits or pay fees are the responsibility of the Irrigation Contractor.

E. Provide and maintain all passageways, guard fences, warning lights, and other protection devices required by local authorities or others having jurisdiction.

F. Irrigation Contractor shall adequately protect adjacent property as provided by law and the Contract Documents.

G. Existing Site Improvements: Perform Work in a manner that avoids damage to existing site improvements. The Irrigation Contractor is responsible for any damage of mechanical nature as well as damage resulting from leaks in the irrigation system whether due to negligence or otherwise.

H. Contractor shall ensure that potable and irrigation water supply to the Frank White Jr.

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Sports Complex is maintained throughout the duration of the construction of the golf course irrigation system improvements.

1.11 WARRANTY AND SUBSTANTIAL COMPLETION

A. Substantial Completion

1. At the completion of the installation of the irrigation system components, and at the direction of the Owner, the Owner’s Representative or the Landscape Architect shall observe the conditions of the project for the purpose of verifying compliance with plans, details and specifications. A written report will be provided to the Owner listing any deviations or omissions. These issues will be resolved and verified by the Owner’s Representative or Landscape Architect prior to the issuance of a Letter of Substantial Completion.

2. Contractor shall provide Landscape Architect with written notification from the manufacturer’s recommended service provider stating that all installation, testing and training of transfer and irrigation supply pump control has been completed and approved. Notification shall be received prior to substantial completion.

B. All irrigation equipment including control valves, sprinklers, rotors, and accessories shall have a minimum two (2) year manufacturer’s warranty. Pump stations shall have a minimum one (1) year manufacturer’s warranty or five (5) year manufacturer’s warranty if Munro pumps are used with Hunter irrigation system. All other irrigation equipment, workmanship, and supplies shall be warranted for one (1) year from date of issuance of the letter of substantial completion. All warranties shall be turned over to the Owner.

1.12 TRAINING

A. A minimum of 2 hours of training, as determined by Hunter Support Network (HSM) Field Service Manager (FSM), for up to two (2) users determined by Owner or Owner’s Representative shall be conducted by the on-site, with installed system, after completion of project. The contractor is to schedule, coordinate, and attend the training session.

Training shall include an overview of system operations as well as detailed one-on-one training for selected individuals for both software and hardware operation.

B. The control system manufacturer is to provide toll-free phone-in support to the Owner at no cost for a period of one (1) year within the initial purchase price of the system.

PART 2 - PRODUCTS

2.1 GENERAL

A. Specific requirements concerning the various materials and the arrangements in which they are to be installed are outlined in this Specification.

B. Quality and Size

1. Material specified by name and / or model number in the Specifications, on the

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2. All materials used in the system must be new and without flaws or defects of any type and be the best quality available.

2.2 ACCEPTABLE MANUFACTURERS

A. The basis of design for the new Irrigation System shall be as manufactured by Hunter Irrigation Systems as specified herein. The Transfer Pump and Irrigation Supply Pump shall be as manufactured by Munro as specified herein. These standards and specifications shall be considered the minimum level of design and performance expected by the County. It is the intent of the County to encourage diversity and competition in the bid responses, and other manufacturers will be considered if they meet or exceed the general and standard specifications. All equipment and work must comply with Federal, State, and Local codes.

B. Manufacturer: Contractor materials shall comply with all requirements and provide irrigation equipment products from only the following:

1. Available Manufacturers: Subject to compliance with requirements, manufacturers offering products not listed within this section may be incorporated into the Work.

2. Irrigation non-potable equipment including spray heads, rotors, nozzles, control valves, quick couplers, weather station, pipe fittings including swing assemblies, swing joints, and swing pipe shall be manufactured by Hunter Irrigation Systems.

a. Or approved equal

3. Integrated Hub based irrigation control system equipment including, Field Interface (PILOT-FI), Decoder Hub (PILOT-DH), Two-Way Modules (TWM), Surge Suppressor (PILOT-SG), and flow sensors shall be manufactured by Hunter Irrigation Systems.

a. Or approved equal

4. Pump Systems and Pump Relays shall be manufactured by the following:

a. Munro

b. Or approved equal

5. Control wire shall be manufactured by Hunter Irrigation Systems.

a. Or approved equal

6. Wire connectors shall be manufactured by 3M Corporation.

a. Or approved equal

7. Prefabricated pump station houses shall be manufactured by the following:

a. Precision Pumping Systems

b. Panel Built

c. KABTech Corp

d. Or approved equal

2.3 DELIVERY, STORAGE AND HANDLING

A. Manufactured materials shall be delivered in original containers with brand and maker's names marked thereon. Materials in broken containers or showing evidence of damage will be rejected and must be immediately removed from the work.

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B. Store plastic pipe on flat pallets and protect from sunlight.

2.4 PIPES, TUBES, AND FITTINGS

A. Main Irrigation supply line and circuit pipe for non-potable water. High Density Polyethylene (HDPE) pipe ASTM D3350

1. Pipe shall be made of HDPE material with a minimum material designation code of PE4710 and with a minimum Cell Classification of 445474C. The polyethylene compound shall be suitably protected against degradation by ultraviolet light by means of carbon black of not less than two (2) percent. The manufacturer of the HDPE resin shall certify the cell classification indicated.

2. Pipe sizes 3” and larger shall have a manufacturing standard of ASTM F714, while pipe smaller than 3” shall be manufactured to the dimensional requirements listed in ASTM D3035. Dimension Ratio (DR) and Outside Diameter (IPS/DIPS) shall be as specified in the irrigation design plans to be developed by irrigation contractor.

3. Pipe shall meet AWWA C901 (1/2” to 3”) or AWWA C906 (4” and greater), and shall be listed as meeting NSF-61.

4. When required by the Owner, pipe shall be color coded for the intended service.

The color coding shall be permanently co-extruded stripes on the pipe outside surface as part of the pipe’s manufacturing process. Color coding shall be as follows:

a. Reclaimed water – purple

B. All pipe that is exposed or not below grade shall be Schedule 80 PVC or Seamless Copper Pipe: ASTM B88, Type M, drawn temper.

C. Sleeving Pipe for Potable Water Irrigation Supply Line: PVC plastic pipe, Schedule 40, ASTM D 1785 and D 1784, PS 21-70.

D. HDPE Fittings:

1. Butt Fusion Fittings- Fittings shall be made of HDPE material with a minimum material designation code of PE4710 and with a minimum Cell Classification as noted in 2.01.A. Fittings shall have a minimum pressure rating equal to or greater than the pipe to which they are joined unless otherwise specified on the plans or accepted by owner/engineer. All fittings shall meet the requirements of AWWA C901 or C906.

a. Molded fittings shall comply with the requirements of ASTM D3261.

b. All fabricated elbows, tees, reducing tees and end caps shall be produced and meet the requirements of ASTM F2206, as manufactured by ISCO Industries, Inc or other approved manufacturer holding an ISO 9001 quality system certificate. Each fitting will be marked per ASTM F2206 section 10 including the nominal size and fitting EDR, which will meet or exceed the pipe DR identified for the project. Fabricated fittings shall be manufactured using a McElroy DataLogger to record fusion pressure and temperature and shall be stamped with unique joint number that corresponds to the joint report. A graphic representation of the temperature and pressure data for all fusion joints made producing fittings shall be maintained for a minimum of 5 years as part of the quality control and will be available upon request of owner. Test results to validate ASTM F2206 section 7.3 and 9 shall be provided to owner or owner’s representative upon request.

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c. Socket fittings shall meet ASTM D2683.

2. Electrofusion Fittings - Fittings shall be made of HDPE material with a minimum material designation code of PE 4710 and with a minimum Cell Classification as noted in 2.01.A. Electrofusion Fittings shall have a manufacturing standard of ASTM F1055. Fittings shall have a minimum pressure rating equal to or greater than the pipe to which they are joined unless otherwise specified on the plans. For potable water systems, all electrofusion fittings shall have AWWA approval.

3. Bolted Connections - Flanges and MJ Adapters shall be fused onto the pipe and have a minimum pressure rating equal to or greater than the pipe unless otherwise specified on the plans.

a. Metallic back-up rings (Van-Stone style lap joint flanges) shall have a radius on the inside diameter of the bore to be compatible with HDPE Flanges. Back up rings shall have bolt pattern that will mate with AWWA C207 Class D (generically known as 150-pound patterns).

b. Flange assemblies shall be assembled and torqued according to PPI TN-38, “Bolt Torque for Polyethylene Flanged Joints.”

c. 4" and larger transitions to mechanical joint fittings and valves shall be accomplished using a MJ Adapter with kit. The D.I./HDPE mechanical joint adapter shall consist of an HDPE mechanical joint transition fitting, rubber gasket, a mechanical joint backup drive ring, and Corten mechanical joint tee bolts.

E. HDPE Saddles

1. Riser/branch/swing connections shall be electrofusion saddles, sidewall fusion saddles, tapping tees or mechanical saddles.

2. Refer to fittings specification for additional requirements for each fitting type.

3. Sidewall fusion saddles can be made in accordance with ASTM D3261 or ASTM

F2206.

4. Tapping tees shall be made in accordance with ASTM D3261 or D2683 and MSS

SP-60.

F. HDPE Ball Valves

1. Valves shall meet ASME b16.40, EN12201-4 and NSF 61.

2. Valve ends shall meet dimensional requirements of ASTM D3035 & AWWA C901

(Sizes through 3”), ASTM F710 & AWWA C906 for sizes 4” and larger.

3. Each valve shall be labeled in accordance with ASTM F2897 for material tracking and traceability.

4. Valves shall be all-plastic construction with outlet and shell made of PE4710

HDPE.

5. All valve soft seals shall be constructed from Viton Flouroelastomer.

6. Valve obturators shall be quarter-turn operation.

G. Metallic: Cast bronze with standard iron pipe thread; 125 bl. class rating in conformance with ANSI B16.15.

1. Copper: ANSI B16.22 wrought copper or cast brass, recessed solder joint type fittings.

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H. Pipeline locating materials

1. Tracer Wire – All HDPE pipe 4” and greater shall be installed with an extra high-strength, copper clad steel tracer wire including 45 mil HDPE jacket that has a minimum average break load of at least 1,150 lbs. This wire shall be continuous and brought up in the valve boxes at the ends of each line segment with splices made only by methods per the manufacturer’s recommendations. All splicing components shall be furnished and installed by the Contractor.

2.5 THRUST BLOCKS

A. All changes in pipe direction must be thrust blocked according to manufacturer's recommendations and specifications.

2.6 WATER METER

A. Existing water meter for irrigation supply pond supplemental fill. Contractor shall review condition of existing meter and meter pit and coordinate with Owner to determine if replacement is needed. If replacement is required, meter shall be sized as needed, and shall be provided per City specifications.

2.7 BACKFLOW PREVENTERS

A. Existing back Backflow preventer for irrigation supply pond supplemental fill. Contractor shall review condition of existing backflow preventer and coordinate with Owner to determine if replacement is required. If replacement is needed, backflow preventer shall be of the type required by the local water supplier and local codes. Backflow preventer shall be sized to meet flow and pressure requirements of the design plans to be provided by Contractor.

B. Transfer pump backflow preventer shall be of the type required by the local water supplier and local codes. Backflow preventer shall be sized to meet flow and pressure requirements of the design plans to be provided by Contractor.

2.8 CENTRAL IRRIGATION CONTROL SYSTEM SLEEVING

A. Install separate sleeve beneath paved areas to route each run of wiring. Any existing sleeving is not to be used without the consent of the Owner’s representative.

B. Sleeving material beneath pedestrian pavements shall be PVC Class 200 pipe with solvent welded joints.

C. Sleeving beneath drives and streets shall be PVC Schedule 40 pipe with solvent welded joints.

D. Sleeving diameter shall be equal to twice the diameter of the wiring bundle.

2.9 VALVES

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A. Manufacturer's Standard, of type and size required, and as follows:

B. Furnish valves with plastic bodies, glass filled nylon or red brass, unless otherwise indicated.

C. Pressure Reducing Valve: If required, standard capacity water pressure reducing valve with integral strainer, Watts U5 series or equal.

D. Zone Control Valves for non-potable irrigation system – Golf Course Entry & Clubhouse Related Block Irrigation Zones.

1. The basis of design for the new Irrigation System “Zone Control Valve” shall be as manufactured by Hunter Irrigation Systems as specified herein. These standards and specifications shall be considered the minimum level of design and performance expected by the County. It is the intent of the County to encourage diversity and competition in the bid responses, and other manufacturers will be considered if they meet or exceed the general and standard specifications. All equipment and work must comply with Federal, State, and Local codes.

2. Globe valve shall be normally closed 24 VAC 50/60 cycle solenoid actuated with a pressure rating of not less than 200 psi.

3. The valve body and bonnet shall be constructed of heavy-duty glass filled UV-resistant nylon and have a double-beaded diaphragm seal with fabric-reinforced EPDM diaphragm.

4. The valve shall have both internal and external manual open/close control to manual open and close the valve without electrically energizing the solenoid. The valve shall house a fully encapsulated one piece solenoid.

5. The valves shall be sized to meet flow requirements shown on plans to be provided by Contractor.

a. Non-Potable irrigation system: Hunter ICV series valves.

E. Pressure Regulating Module for regulating outlet pressure at control valve from 20 – 100 psi.

1. The basis of design for the new Irrigation System “Pressure Regulating Module” shall be as manufactured by Hunter Irrigation Systems as specified herein. These standards and specifications shall be considered the minimum level of design and performance expected by the County. It is the intent of the County to encourage diversity and competition in the bid responses, and other manufacturers will be considered if they meet or exceed the general and standard specifications. All equipment and work must comply with Federal, State, and Local codes.

2. The Pressure Regulating Module shall be Hunter Accu Sync Pressure Regulator.

F. Quick Coupling Valve: Brass, Single piece construction, one-inch female iron pipe size connection; vinyl covered brass hinged locking cover.

1. The basis of design for the new Irrigation System “Quick Coupling Valve” shall be as manufactured by Hunter Irrigation Systems as specified herein. These standards and specifications shall be considered the minimum level of design and performance expected by the County. It is the intent of the County to encourage diversity and competition in the bid responses, and other manufacturers will be considered if they meet or exceed the general and standard specifications. All equipment and work must comply with Federal, State, and Local codes.

a. Non-potable irrigation system: Purple cap Hunter HQ-44-LRC-R

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G. Manual Gate Valves (Isolation Valves): Non-rising stem, 125 lbs. brass body and parts with wedge disc filled for key operation, as supplied by Crane or equal.

1. Contractor to coordinate gate valve locations with Owner or Owner’s

Representative prior to design plan development.

H. Pressure Relief Valves: As manufactured by Waterman, or equal.

I. Valve Box Cover and Frame:

1. Manufacturers:

a. Hunter MB Series, manufactured by Hunter Industries

b. Rain Bird VB Series, manufactured by Rain Bird Corporation

c. Ametek plastic valve boxes, manufactured by Plymouth Products

d. or equal.

2. Non-potable water irrigation system:

a. Turf Areas: Purple Cover

3. Sizes:

a. 10” Round

b. 12” Standard

J. Drainage Pit Backfill: Cleaned gravel or crushed stone, graded from 2" maximum to 3/4" minimum. AB3 or equivalent is not acceptable backfill material.

2.10 AUTOMATIC DRAIN VALVES

A. Description: Spring-loaded-ball type of corrosion-resistant construction and designed to open for drainage if line pressure drops below 2-1/2 to 3 psig.

2.11 DRAIN LINES

A. Contractor to coordinate system drain line locations to ponds with Owner or Owner’s Representative prior to design plan development.

2.12 SPRINKLER HEADS

A. The basis of design for the new Irrigation System “Sprinkler Heads” shall be as manufactured by Hunter Irrigation Systems as specified herein. These standards and specifications shall be considered the minimum level of design and performance expected by the County. It is the intent of the County to encourage diversity and competition in the bid responses, and other manufacturers will be considered if they meet or exceed the general and standard specifications. All equipment and work must comply with Federal, State, and Local codes.

B. Manufacturer's standard unit designed to provide uniform coverage over entire area of spray shown on design drawings at available water pressure.

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1. Reclaimed water pop-up spray heads, 6" for turf at Entry Drive & Clubhouse:

Hunter Pro-Spray PRS30 Series (for reclaimed water) with plastic body, co-molded wiper seal, precision controlled flush at pop-down, built-in pressure regulator in the stem to maintain constant outlet pressure of 30 psi, designed for use with Hunter PRO adjustable nozzles with matched precipitation rate, installed using Hunter SJ series swing assemblies. All pop-up spray heads are to have the built-in check valve.

a. Or approved equal.

2.13 TURF ROTORS

A. The basis of design for the new Irrigation System “Turf Rotors” shall be as manufactured by Hunter Irrigation Systems as specified herein. These standards and specifications shall be considered the minimum level of design and performance expected by the County. It is the intent of the County to encourage diversity and competition in the bid responses, and other manufacturers will be considered if they meet or exceed the general and standard specifications. All equipment and work must comply with Federal, State, and Local codes.

B. Manufacturer’s standard unit to provide uniform coverage over entire area of spray shown on irrigation contractor’s design drawings at designated water pressure.

1. Reclaimed water 6” Pop-up gear driven turf rotor at Entry Drive & Clubhouse:

Hunter PGP Ultra series with non-strippable drive mechanism, automatic arc return, operating range of 25 to 70 psi, arc adjustment using flat bladed screwdriver of 50-360 degrees, factory installed drain check valve designed for use with the Hunter standard and low-angle nozzles installed using Hunter SJ series swing joints.

a. Or approved equal.

2. Reclaimed water valve-in-head rotors for Championship Course, Par-3 Course, Driving Range and Putting Green areas shall be Hunter TTS-800 series with 50- 100 psi operating pressure, for use with Hunter standard and low-angle nozzles installed using Hunter SJ series swing joints per manufacturer’s recommendations and specifications. Contractor to confirm rotor options to be included, to include Cover Kits, with Owner prior to bid. Head layout shall be double and triple row hybrid.

a. Or approved equal.

2.14 INTEGRATED HUB SYSTEM

A. The basis of design for the new Irrigation System “Integrated Hub System” shall be as manufactured by Hunter Irrigation Systems as specified herein. These standards and specifications shall be considered the minimum level of design and performance expected by the County. It is the intent of the County to encourage diversity and competition in the bid responses, and other manufacturers will be considered if they meet or exceed the general and standard specifications. All equipment and work must comply with Federal, State, and Local codes.

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B. The central control system field components shall be Hunter Integrated Hub System.

1. Integrated Control technology shall be used to communicate between the central control computer and the field devices. The central control package shall be supplied with the necessary number of field interfaces (PILOT-FI) to provide communication between the central control software and all of the field components. The field components shall be Two-Way Modules “TWM” mounted directly in the Hunter valve-in-head sprinklers or with electric valves. There shall be no field satellites or interfaces visible on the golf course. The overall approximate system capacity the Integrated Hub System shall be 999 stations.

a. The maximum length of run and wire gauge size of the two-wire path shall be installed according to these specifications and following the most current Integrated Hub System Design Manual. At no time shall the maximum length of run of a wire path exceed the recommended design guidelines.

2. PILOT-DH DECODER HUB(S)

a. The decoder hub shall be housed in a lockable, weather-resistant plastic pedestal. The hub shall be completely solid state with tactile keys on a membrane overlay for programming and shall be fully illuminated for low light operations. The hub shall include an optional password setting for security purposes.

b. The hub shall store all irrigation schedules in non-volatile, field resident memory and shall not be dependent on the central computer to irrigate or to create or edit watering schedules.

c. The hub shall have a minimum of 250, 500, 750 or 999 decoder addresses, as needed per irrigation design plans, using up to four decoder output modules. The hub shall supply sufficient power to activate up to 20 standard Hunter golf solenoids simultaneously per decoder output module and up to 120 solenoids in a fully loaded hub.

d. Each decoder output module shall be equipped with heavy duty lightning protection as a standard feature, and shall be equipped with replaceable automotive style fuses. Each hub shall be furnished with spare fuses in a holder designed for this purpose, immediately above the output modules.

e. All hub components shall be replaceable with no tool other than a standard #2 Phillips screwdriver, which shall be furnished and stored within the controller lid.

f. Each controller shall have a copper clad steel ground lug, and shall be grounded in accordance with ASIC specifications to a minimum of 10 Ohms or less.

g. The hub shall have a keypad-selectable identification number, variable schedule lengths from one to 32 days, 64 independent schedules (which are automatic and can operate in series, parallel, or independent of each other).

h. The hub shall have 64 automatic schedules with maximum station run times of at least 6 hours. The hub shall have seasonal adjustment which scales scheduled runtimes from 1% to 300%.

i. The hub shall include a rain shutdown feature which can prevent automatic operation for 1 to 31 days or indefinitely.

j. The hub keypad shall permit local editing of decoder/station assignments, both for initial setup and for editing decoders after subsequent repairs or replacement. The keypad shall permit assignment of stations to up to 64

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“blocks” of up to 10 stations each, so that a single run time may be assigned to groups of stations for simultaneous activation.

k. The hub shall permit direct programming of decoder addresses via an onboard programming port.

l. The hub shall feature hardwire communications in order to provide true two-way communications with the central computer. The communications link shall be over GCBL cable, two twisted pair, 18 AWG solid copper, foil-shielded with drain wire and PVC jacket (or GCBLA armored cable), and no other cable shall be acceptable. The communications circuitry shall include transmit and receive LEDs for the individual hub, and all communications between the hub and the central computer.

m. The hub shall have the ability to respond to remote Maintenance Radio commands received by the central interface and relayed over the hardwire communications path.

n. The hub shall be Hunter Golf Model PILOTDHXXX-HWR. Minimum station size per irrigation design plans.

2.15 ELECTRIC WIRING

A. 120 Volt AC Wiring: 120-volt service to PILOT-DH shall be per manufacturer’s specifications. Electrical service is to be provided by the General Contractor unless otherwise directed by Owner’s Representative.

B. Provide junction box, flush-mounted and gasketed per code as required.

C. 2-Wire Control Wiring shall be dual core, tin-coated, double insulated special irrigation control wire. Minimum wire size shall be per irrigation system manufacturer’s specifications. The irrigation system manufacturer’s installation manual shall be followed to ensure proper installation of the wire path. Wire to be as recommended by irrigation system manufacturer or approved equal.

D. Splices in controller wiring shall be waterproof direct bury application. Use irrigation system manufacturer’s recommended DBRY wire connectors or approved equal

E. Contractor shall coordinate with Owner or Owner’s Representative for routing 120V power along system drain lines to Owner designated ponds for power supply to aerators/fountains to be installed at a future date.

2.16 CENTRAL IRRIGATION CONTROL DEVICES

A. The basis of design for the new Irrigation System “Central Irrigation Control Devices” shall be as manufactured by Hunter Irrigation Systems as specified herein. These standards and specifications shall be considered the minimum level of design and performance expected by the County. It is the intent of the County to encourage diversity and competition in the bid responses, and other manufacturers will be considered if they meet or exceed the general and standard specifications. All equipment and work must comply with Federal, State, and Local codes.

B. Central Irrigation Control System Software (CICS)

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1. The central irrigation control system shall consist of the latest version of Hunter PILOT Command Center Software.

2. Computer:

a. The software shall come preinstalled on a 64-bit, Microsoft Windows 8 computer. The 34.5MM X 182MM X 179MM (1.4” X 7.1” X 7.2”) computer shall be equipped with an external power supply and a solid-state hard drive for file storage.

b. The computer shall include a 22” flat screen monitor with a mounting bracket for attaching the computer to the display.

c. The computer shall shall include a 10M/100M/1000M GIGABIT Ethernet card and 802.11B/G/N WI-FI card for internet connectivity. A 15-month subscription for MacAfee antivirus software shall be preinstalled on the system.

d. The computer shall com preloaded with GoogleTM ChromeTM configured as the default web browser.

e. Contractor shall install central control computer at a location designated by Owner or Owner’s Representative and coordinate dedicated internet connection (wired or wireless) to the location.

3. General Communications:

a. The software shall permit both wired and radio two-way communications via a PILOT-FI field interface. The system shall be capable of managing up to 999 addressable conventional field controllers or decoder hubs.

b. The software shall have communications test and diagnostic capabilities with all field devices and shall log communication attempts and their results by the operator.

c. The software shall have the ability to issue a communications check to all field devices on site and retrieve the status of each.

4. Field Interface:

a. The central irrigation computer shall be connected to a PILOT-FI field interface by USB. The field interface shall be completely plug-n-play and shall not require a COM port number. When connected, the display on the field interface shall clearly show that the connection is ok. If there is a problem with the connection the field interface shall clearly display an alarm condition and an alarm button on the screen can be used to determine the cause.

b. The field interface shall be of modular design with a large faceplate providing access to system troubleshooting tools. Communication modules used in the field interface shall fully enclosed units with options for wired and radio communication. Radio communication shall be available in both UHF and spread-spectrum. All communication modules shall be interchangeable with communication modules used in the field controllers and decoder hubs. The field interface display shall be available in multiple languages.

5. Function Specifications-Software

a. The software shall allow the operator to create, edit, send, and retrieve stand-alone Pilot field controller and decoder hub watering schedules (FCPs). The software shall also create, edit, and send flow-optimized irrigation schedules using a matrix or grid organized with management groups in columns and locations in rows. It shall be possible to schedule flow-optimized watering cycles either by a start time, or by an end time. The software shall include a PICK LISTS feature used to customize the programming matrix and tune it to the localized conditions of the golf course. The software shall

March 10, 2025 328400 - 16 PLANTING IRRIGATION Technical Specification & Plan Documents enable the customer to manually initiate or stop watering of both individual stations as well as FCPs. The software must also have the ability to stop all irrigation with a single command and provide for the gradual reduction of that demand to limit the possibility of dangerous spikes in pressure.

b. The software must be capable of simultaneously managing both FCP watering schedules as well as flow-optimized irrigation cycles. The software must be capable of automatically switching between these two modes of operation so that FCP scheduling and flow-optimized irrigation are both possible within the field controller or decoder hub. The system must also be capable of limiting the watering mode to FCP or flow-optimized. The system shall be capable of managing up to 32 FCPs or stand alone controller schedules per field controller or decoder hub. FCPs or stand-alone controller schedules must be capable of running any combination of up to 100 stations, blocks (groups of up to 10 stations which run simultaneously) and delays.

FCPs shall have four schedule options:

1) Water every day

2) Select days of the week

3) Interval days

4) Manual (schedules without start times typically used with field maintenance radio) FCPs shall have three start time options:

1) Up to 10 explicit start times

2) Start to end in which the user enters a start time and an end time then the schedule decides how many times it will repeat within that time window. Once set up, the schedule must calculate and display the number of repeats.

3) Start plus repeats in which the user enters a start time and the number of times the schedule will repeat. Once set up the schedule must calculate approximately what time the schedule will finish.

FCP runtimes shall be from 1 minute up to 6 hours. It shall be possible to associate any and all of these runtimes with any combination of stations, blocks of stations or delays. Once the runtimes are entered the schedule must calculate and display the total irrigation time for that schedule. The calculated total schedule runtime shall take into account any seasonal adjustment factor applied to it.

The software shall be capable of retrieving FCPs from the field controllers or decoder hubs where they can be reviewed and compared side by side with the FCPs currently in the software. The user shall have the option of overwriting the FCPs stored in the central irrigation software or making changes to the FCPs stored in the software and writing them back to the field controllers or decoder hubs.

c. Flow-optimized irrigation shall be a complete set of watering instructions for all field controllers or decoder hubs on the site. It shall contain all the start times, run times, cycles and soaks for all field controllers or decoder hubs.

To prevent destabilizing the carefully balanced sequence of events which must be loaded in each decoder hub or field controller when flow-optimized watering is used, it shall not be possible to edit the event list at the controller or hub. The complete list of events shall be viewable through the face pack of each field controller or decoder hub.

Decoders: The software shall be capable of operating up to 998,001 decoders segregated into groups of 999 decoders in up to 999 decoder hubs.

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Decoder irrigation scheduling shall be identical in all regards to conventional controller watering.

Decoder addresses shall be included on the irrigation plan exactly the way station numbers are with a typical field controller. Decoder addresses shall not be randomly assigned. Decoders shall be addressable from 1 to 999 allowing each decoder to represent a specific station number on each pedestal-mounted decoder hub so the addresses may be known in advance to place them on the irrigation plan.

d. As a backup, should the central irrigation computer be unable to send a new list of flow-optimized watering events, the system shall be capable of calculating 1, 2 or 3 days of completely unique flow-optimized watering cycles. These unique watering cycles shall allow for different runtimes on each day. If the central irrigation computer fails to replace the flow-optimized events stored in the field controllers or decoder hubs, the field units will automatically water according to those stored events. If there is only one day’s worth of events stored in the field units, that one day will repeat continuously until new instructions are delivered by the central software. If two days are stored, the units will cycle days 1 then 2 repeatedly. If three days are stored, the cycle will be days 1-2-3.

The central software shall be capable of replacing any of the three days and shall not have to change all three days. The central software shall have a way to delete all flow-optimized events from the field controllers or decoder hubs.

e. The central irrigation software must flow-optimize each individual station.

The system must not attempt to create flow-optimized FCPs or stand-alone controller schedules.

The flow-optimization process must take into consideration the following constraints:

1) Station flow rate. This could be a single valve-in-head sprinkler or the total flow requirement for a block of sprinklers.

2) Maximum simultaneous stations supported by the electrical characteristics of the field device in use. For example, if a field controller is capable of running a maximum of 20 stations simultaneously, flow-optimization must take this into consideration and ensure it never tries to turn on more than 20 stations at a time with that controller.

3) Pump/water source limitations. The total flow rate demand of all simultaneously running sprinklers must not exceed the available capacity of the pump station.

4) It shall be possible to configure each water source to gradually ramp up the pump station’s supply limit. The flow-optimization process must take the temporarily limited pump station capacity into consideration when it calculates the sequence of events for that watering cycle.

5) Any priorities assigned to individual stations, locations or management groups must be considered during the flow-optimization process. To guarantee best possible use of the pump station, the flow-optimization process shall not limit the choice of stations to run solely by their priorities. Higher priorities must only be given extra weight as the flow-optimization process determines

March 10, 2025 328400 - 18 PLANTING IRRIGATION Technical Specification & Plan Documents which station to run next.

6) The process must account for any station overrides in the system database. For example, if a station has been defined as a master valve so that it can energize a pump start relay and keep the pump running throughout the duration of the watering cycle, the process should consider that station to be outside of the process and treated like a station with a flow rate demand of zero.

7) The flow-optimization process must consider any delayed starts assigned to individual stations, locations or management groups. For example, if watering for most of the course is scheduled to occur between 11:00 pm and 2:00 am but the user has entered a delayed start time of 4:00 am for the GREENS management group, stations in that management group must not run until 4:00 am.

8) The flow-optimization process must consider the maximum allowable flow rate through each segment of the hydraulic network. The combined flow rate demand of all stations “downstream” of a particular segment must not exceed the maximum allowable capacity of that segment.

f. The software must be capable of scheduling irrigation given the runtime, a 24-hour ET value or a depth of water the user would like to apply.

The software shall include a Pick List feature used to apply percent adjustments to the entire system, locations, management groups and field controllers or decoder hubs and individual stations. The runtime adjustments shall include a timer such that a change to the adjustment can be set to remain in effect for a number of days before reverting to its previous value.

FCP or stand-alone controller scheduling shall be configured through a dedicated worksheet supporting all functions offered by the field unit.

Flow-optimized scheduling shall be configured through a grid or matrix displaying every station on the golf course organized in columns based on management group and rows based on location. The user must be able to see at a glance exactly what is scheduled to water, down to the individual stations, without opening any additional windows.

Flow-optimized scheduling shall not require any “program” creation. All information required to schedule irrigation shall be already displayed in the matrix of sprinklers on the golf course. The only additional piece of information required shall be irrigation start time or optionally an irrigation end time. When the end time is used, the flow-optimization process will ensure all irrigation is complete at the desired end time and shall automatically calculate the irrigation start time.

Once scheduling is complete, the software shall take those stations and pass them through the flow-optimization process. The results of that procedure shall be presented in a list showing each scheduled station along with its start time and runtime.