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PART 1 - GENERAL
<br />SECTION INCLUDES
<br />Work to be performed under this Section shall consist of furnishing all labor and materials necessary to
<br />construct a complete working and tested sprinkler irrigation system as per all drawings and
<br />specifications.
<br />REFERENCES
<br />A. ANSI - American National Standards Institute
<br />B. ASIC - American Society of Irrigation Consultants: ASIC Grounding Guideline.
<br />C. ASSE - American Society of Sanitary Engineering: ASSE 1013, 1015: Backflow Preventers,
<br />Pressure Reducers.
<br />D. ASTM - American Society of Testing and Materials
<br />E. IA -The Irrigation Association: Main BMP Document.
<br />F. NFPA - National Fire Protection Association: NFPA 70 National Electrical Code.
<br />G. UL - Underwriters Laboratories: UL Wires and Cables.
<br />PERFORMANCE REQUIREMENTS
<br />A. All work to be performed to current standards of SEI and of the local governing municipality.
<br />• B. PVC Pipe: Must be stamped with certified NFS.
<br />C. Contractor shall be responsible to obtain all necessary permits and to comply with electrical
<br />company requirements.
<br />D. No substitutions of materials are allowed unless approved by Landscape Architect.
<br />QUALITY ASSURANCE
<br />A. Contractor shall have considerable experience and demonstrate ability in the installation of
<br />irrigation system(s) of specified type(s) in a neat, orderly, and responsible manner in accordance
<br />with recognized standards of workmanship.
<br />B. All work shall be performed in accordance with the best standards of practice relating to the trade.
<br />C. Contractor shall provide an irrigation as -built drawing to the designer responsible for the irrigation
<br />plan. This drawing shall be ovemighted to the respective party within 24 hours of
<br />installation completion.
<br />WARRANTY
<br />A. Contractor shall provide a one year warranty that covers all workmanship and labor.
<br />B. Contractor shall provide a five year warranty that covers all materials.
<br />PART 2 - PRODUCTS
<br />PIPE AND FITTINGS
<br />A. Material: PVC
<br />B. Pressure Pipe: Class 200.
<br />C. Lateral Pipe: Class 200, Polyethylene for Northeastern Climate.
<br />D. Fittings: Schedule 40, solvent welded or threaded.
<br />E. Risers: Schedule 80, threaded.
<br />F. Sleeves: Schedule 40, minimum 4".
<br />AUTOMATIC CONTROLLER
<br />A. Irrigation controller specifications include but are not limited to:
<br />1. The controller shall be of a hybrid type that is microelectronic circuitry capable of fully automatic
<br />or manual operation.
<br />2. All stations shall have the capability of independently obeying or ignoring the weather sensor as
<br />well as using or not using the master valve.
<br />3. The controller shall have the capability of shutting off the system on rainy days.
<br />B. Control zone kit for drip zones with flows from 3 to 15 gpm (11.4 to 56.8 I/m), including control valve
<br />(CV) and pressure -regulating filter (PRF).
<br />1. Control Valve (CV) component specifications include:
<br />a. Valve body and bonnet constructed of high impact, weather -resistant plastic, stainless steel
<br />and other chemical/ultra-violet resistant materials.
<br />b. One unit diaphragm constructed of durable Buna-N rubber with a clog resistant metering
<br />orifice.
<br />c. Inlet pressure rating of 15 to 150 psi (1.0 to 10.3 bar).
<br />2. Pressure Regulating Filter (PRF) component specifications include:
<br />a. Compact "Y" filter body and cap configuration constructed of glass -filled, ultra -violet
<br />resistant polypropylene, with 150 psi (10.3 bar) operating pressure rating.
<br />b. 200 mesh (75 micron) filter screen constructed of stainless steel.
<br />c. Normally -open pressure regulating device with preset outlet pressure of 40 psi (2.8 bar).
<br />3. Regulated pressure of 40 psi (2.8 bar).
<br />C. Low flow control zone kit for drip zones with flows from 0.2 to 5.0 gpm (0.8 to 18.9 I/m), including
<br />Low Flow Valve (LFV) and Pressure -Regulating Filter (PRF).
<br />1. Low flow valve (LFV) component specifications include:
<br />a. Valve body and bonnet constructed of high impact, weather -resistant plastic, stainless steel
<br />and other chemical/ultra-violet resistant materials.
<br />b. One unit diaphragm constructed of durable Buna-N rubber material with a clog resistant
<br />metering orifice.
<br />c. Inlet pressure rating of 15 to 150 psi (1.0 to 10.3 bar).
<br />2. Pressure regulating filter (PRF) component specifications include:
<br />a. Compact "Y" filter body and cap configuration constructed of glass -filled, ultra -violet
<br />resistant polypropylene, with 150 psi (10.3 bar) operating pressure rating.
<br />b. 200 mesh (75 micron) filter screen constructed of stainless steel.
<br />c. Normally -open pressure regulating device with preset outlet pressure of 30 psi (2.1 bar).
<br />3. Regulated pressure of 30 psi (2.1 bar).
<br />POP-UP SPRINKLERS
<br />A. Irrigation spray body for small turf areas (2.5-24 feet (0.8-7.3m) with a 30 psi (2.0 bar) pressure
<br />regulating device specifications include but are not limited to:
<br />1. Parts and components to withstand harsh operating conditions using chemically treated
<br />recycled water (reclaimed/non-potable), dirty water containing grit, debris, and other
<br />particulates, high operating pressures common in commercial irrigation and resistant to
<br />ultra -violet light.
<br />2. Pressure -activated, co -molded soft elastomer wiper seal composed of three wipers and a base
<br />seal to ensure a positive seal without excess "flow -by" which enables more heads to be
<br />installed on the same valve.
<br />3. Recessed debris pockets located in the base of the spray body to prevent recirculation of
<br />harmful debris during operation.
<br />4. Shall include a check valve to prevent low head drainage of up to 14 feet (4.3 m); 6 psi (0.4
<br />bar).
<br />5. Shall include technology built into the stem to prevent water loss and alert maintenance when a
<br />spray nozzle is removed.
<br />6. Flow by rating of 0 at 15 psi (1.0 bar) or greater, 0.5 gpm (0.1 m3/h; 0.03 I/s) otherwise.
<br />7. Shall include '/z" (15/21) NPT female threaded bottom inlet.
<br />8. The spray body, stem, nozzle, and screen shall be constructed of heavy-duty and ultra -violet
<br />resistant plastic.
<br />B. Irrigation spray body for small turf areas (2.5-24 feet (0.8-7.3m) with a 45 psi (3.1 bar) pressure
<br />regulating device specifications include but are not limited to:
<br />1. Parts and components to withstand harsh operating conditions using chemically treated
<br />recycled water (reclaimed/non-potable), dirty water containing grit, debris, and other
<br />particulates, high operating pressures common in commercial irrigation and resistant to
<br />ultra -violet light.
<br />2. Pressure -activated, co -molded soft elastomer wiper seal composed of three wipers and a base
<br />seal to ensure a positive seal without excess "flow -by" which enables more heads to be
<br />installed on the same valve.
<br />3. Recessed debris pockets located in the base of the spray body to prevent recirculation of
<br />harmful debris during operation.
<br />4. Shall include a check valve to prevent low head drainage of up to 14 feet (4.3 m); 6 psi (0.4
<br />bar).
<br />5. Shall include technology built into the stem to prevent water loss and alert maintenance when a
<br />spray nozzle is removed.
<br />6. Flow by rating of 0 at 15 psi (1.0 bar) or greater, 0.5 gpm (0.1 m3/h; 0.03 I/s) otherwise.
<br />7. Shall include Y2" (15/21) NPT female threaded bottom inlet.
<br />8. The spray body, stem, nozzle, and screen shall be constructed of heavy-duty and ultra -violet
<br />resistant plastic.
<br />SPRAY NOZZLES
<br />A. Fixed or variable arc matched precipitation rate spray nozzle for small turf areas (3-15 feet (.91-4.6
<br />m), maximum 30 psi (2.1 bar) specifications include but are not limited to:
<br />1. Shall be constructed of ultra -violet resistant plastic.
<br />2. Shall contain a stainless steel flow and radius adjustment screw allowing up to 25% radius
<br />reduction.
<br />3. Nozzle shall have a precipitation rate that is matched across sets and patterns of spray nozzles
<br />up to 15 feet (4.6 m).
<br />4. Shall include color coding marking on top of nozzle for easy identification of spray radius.
<br />B. Dual orifice fixed arc nozzle for small turf areas (5-15 feet (1.7-4.6 m), maximum 30 psi (2.1 bar)
<br />specifications include but are not limited to:
<br />1. Shall be constructed of ultra -violet resistant plastic.
<br />2. Shall contain a stainless steel flow and radius adjustment screw allowing up to 25% radius
<br />reduction.
<br />3. The nozzle shall have dual orifices for both in -close watering and standard pattern watering
<br />with a matched precipitation rate between sets and matched flow and with other matched
<br />precipitation rate fixed spray nozzles up to 15 feet (4.6 m).
<br />4. Shall include color coding marking on top of nozzle for easy identification of spray radius.
<br />C. Multi stream rotating nozzle for small turf areas (8-24 feet (2.4-7.4m), maximum 55 psi (3.8 bar)
<br />specifications include but are not limited to:
<br />1. Shall be constructed of ultra -violet resistant plastic.
<br />2. Shall contain a stainless steel radius adjustment screw allowing reduction to 13 feet (4.0 m).
<br />3. Shall have a matched precipitation rate of 0.60 in/hr (15.2 mm/hr).
<br />4. Shall have a color coded radius reduction plug to allow for easy identification of fixed arc
<br />pattern.
<br />ROTOR HEADS
<br />A. Pop-up rotor sprinkler for medium turf areas (25-47 feet (7.6-14.3 m), maximum 75 psi (5.2 bar)
<br />specifications include but are not limited to:
<br />1. Shall have adjustable arc rotation of 40 to 360 degrees (0.7 to 6.3 rad) and reversing full circle
<br />rotation.
<br />2. Shall have a flow shut-off device that is integrated into the flow path of the sprinkler.
<br />3. Shall have a pressure -activated, multi -function wiper seal that protects intemals from debris
<br />and assures positive pop-up and retraction.
<br />4. Shall contain additional o-rings and seals for extra protection in "gritty" water.
<br />5. Operating precipitation rate of 0.20 to 1.01 inches per hour (5 to 26 mm/h).
<br />6. Operating flow rate of 0.73 to 8.31 gpm (0.17 to 1.85 m3/h).
<br />7. The body, stem, nozzle, and screen shall be constructed of heavy-duty and ultra -violet resistant
<br />plastic.
<br />8. Shall include a 45 psi (3.1 bar) pressure regulating device to prevent high pressure misting to
<br />the nozzle stream.
<br />9. Shall include an internal check valve to prevent low head drainage of up to 7 feet (2.1 m) to
<br />prevent puddling, run-off and erosion.
<br />10. Shall include a set of twelve interchangeable nozzles, 8 nozzles with 25 degree (0.4 rad)
<br />trajectory and 4 low -angle nozzles with 10 degree (0.2 rad) trajectory.
<br />FLEXIBLE SWING PIPE
<br />A. Swing pipe specifications include but are not limited to:
<br />1. Swingpipe shall be flexible black tubing constructed of linear low density material
<br />PP 9 tY
<br />with a wall thickness of 0.098" (0.3 cm) with a nominal inside diameter of 0.49" (1.2 cm).
<br />2. Pipe shall be capable of a flow up to 8 gpm (0.51/s).
<br />DRIPLINE
<br />A. Distribution tubing specifications include but are not limited to:
<br />1. The blank tubing shall be manufactured from flexible polyethylene material with a wall thickness
<br />of 0.049" (1.2 mm), outside diameter of 0.634" (16.1 mm), and inside diameter of 0.536" (13.6
<br />mm).
<br />2. The tubing shall be dual -layered (brown over black).
<br />INLINE EMITTER DRIPLINE
<br />A. Sub -surface inline emitter tubing specifications include but are not limited to:
<br />1. The tubing shall be manufactured from flexible polyethylene material with wall thickness of
<br />0.049" (1.2 mm), outside diameter of 0.634" (16 mm), and inside diameter of 0.536" (13.6 mm).
<br />2. The tubing shall have factory installed pressure -compensating, inline emitters with a copper
<br />shield device installed every 12, 18, or 24 inches (30.5, 45.7, 61 cm) as indicated on
<br />construction drawings.
<br />3. Operating pressure range of 8.5 to 60 psi (0.6 to 4.1 bar).
<br />4. Operating emitter flow rates of 0.6 and 0.9 gph (2.3 I/hr and 3.5 I/hr).
<br />DISTRIBUTION TUBING
<br />A. Y4" distribution tubing for emitters and other devices specifications include but are not limited to:
<br />1. The blank tubing shall be extruded from ultra -violet resistant polyethylene resin materials with a
<br />wall thickness of 0.04" (1 mm), outside diameter of 0.250" (6.3 mm), and inside diameter of
<br />0.170" (4.3 mm).
<br />2. Operating pressure range from 0 to 60 psi (0 to 4.1 bar).
<br />EMITTERS
<br />A. Point source emission device specifications include but are not limited to:
<br />1. The emitter shall be constructed of ultra -violet resistant acetyl materials.
<br />2. Shall have a pressure -compensating design to deliver a uniform flow throughout a pressure
<br />range of 15 to 50 psi (1.0 to 3.4 bar).
<br />3. Flow rates that range from 0.5 to 2 gph (1.89 to 7.57 I/h) at a pressure range of 15 to 50 psi
<br />(1.0 to 3.4 bar).
<br />VALVE BOX
<br />A. Valve boxes specifications include but are not limited to:
<br />1. Shall be made of structural foam HPDE resin that is resistant to ultra -violet light, weather,
<br />moisture and chemical action of soils.
<br />2. Lids shall be clearly marked with the words "IRRIGATION CONTROL VALVE" molded onto the
<br />top.
<br />3. Lid colors are available in black, green and purple designating non -potable water use.
<br />EXCAVATION
<br />A. Stake pipe and equipment layout for Owner's review and approval. Review does not relieve
<br />installer from coverage problems due to improper placement after staking.
<br />B. Excavate trenches for irrigation system pipe to provide minimum cover per plans and details.
<br />C. Barricade trenches that are left open overnight.
<br />INSTALLATION
<br />A. General: Plans are diagrammatic. Proceed with installation in accordance with the following:
<br />1. Install stop and waste valves, backflow preventers, and other equipment required by local
<br />authorities according to laws and regulations in order to make system complete.
<br />a. Coordinate with the General Contractor the responsible for installing the backflow preventer
<br />and other irrigation items at the connection point.
<br />b. Coordinate with the General Contractor the for exact location of the irrigation connection
<br />point.
<br />2. Thoroughly flush main lines before installing automatic control valves, and laterals before
<br />installing sprinklers. Flush supply lines thoroughly before installing backflow preventers or other
<br />regulating devices.
<br />B. Piping: Assemble all mainline and lateral lines in accordance with manufacturer's
<br />recommendations with no cul-de-sacs. Assure positive drainage.
<br />C. Sleeves: General Contractor shall install sleeves before concrete/paving work.
<br />1. Sleeves should be a minimum two times the diameter of the pipe passing through them.
<br />2. General Contractor shall stub -up and flag sleeve locations for the Irrigation Contractors ease of
<br />locating.
<br />3. Sleeve locations shall be approximate to that shown on the Irrigation Plan.
<br />D. Control Valves:
<br />1. Install one valve per valve box and provide 12 inches of expansion loop slack wire at all
<br />connections inside valve box.
<br />E. Manual Drains:
<br />1. Install per manufacturer's recommendations on upstream and downstream side of backflow
<br />preventers and atlowest point along main pressure pipe.
<br />W,
<br />Chick-fil-A
<br />5200 Buffington Road
<br />Atlanta, Georgia
<br />30349-2998
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<br />L A N M7a*
<br />Landscape Architecture
<br />770.442.8171 tel
<br />770.442.1123 fax
<br />F. Quick -Coupling Valves:
<br />1. Install using 1 inch PVC nipples and schedule 40 ells as detailed. Location as indicated on Manley Land Design, Inc.
<br />plans. 51 Old Canton Street
<br />G. Backflow Preventer: Alpharetta, Georgia 30009
<br />1. Install assembly complete for irrigation system with 2 drain valves and 2 shut off valves per
<br />detail, local laws and regulations, and per manufacturer's specifications. manleylanddesign.com
<br />2. Install assemblies with drain valves in below grade installations. Provide open box floor with
<br />gravel drain sump.
<br />H. Valve Boxes
<br />1. Install over all remote control valves, manual control valves, zone shutoff valves, gate valves,
<br />or globe valves. Size to provide adequate room for maintenance.
<br />2. Install boxes on level subgrade with proper drainage so that top of boxes are flush with finish
<br />grade material (sod, mulch, rock, etc.). Place parallel or perpendicular to adjacent curbs,
<br />sidewalks, or driveways.
<br />3. Place washed gravel aggregate in sump as shown on details.
<br />I. Automatic Controller
<br />1. Properly ground controller per local laws and regulations. Make all control wire connections to
<br />automatic controller. Coordinate controller installation with other electrical work.
<br />2. Connect remote control valves to controller in numerical sequence as shown on Plans.
<br />J. Wire and Electrical Work
<br />1. Use electrical control and ground wire suitable for sprinkler control cable.
<br />2. Provide 120-volt power connection (by others) to automatic controller to conform to local codes,
<br />ordinances and authorities having jurisdiction.
<br />3. Low Voltage Wiring:
<br />a. Bury control wiring between controller and electric valves in pressure supply line trenches,
<br />strung as close as possible to main pipe lines with such wires to be consistently located
<br />below and to one side of the pipe, or in separate trenches.
<br />b. Bundle all 24-volt wires at 10-foot intervals and lay with pressure supply line pipe to one
<br />side of trench.
<br />c. Install control wire for each control valve.
<br />d. Run 2 spare #14-1 wires from controller pedestal or electric control valve on each and
<br />every leg of mainline.
<br />K. Sprinkler Heads, Emitters, Rotators, and Rotors
<br />1. Flush circuit piping with full head of water and install sprinklers after hydrostatic text is
<br />completed.
<br />2. Adjust nozzles to allow for adequate coverage and to minimize overspray onto walks, roads,
<br />driveways, and buildings. r
<br />3. Stake emitter tubing with 1/4" RainbircM TS-025 tubing stakes. ' O
<br />4. Adjust heads to be plumb and flush with finish grades, even with top of soil level or top of M
<br />material level after completion of grading, seeding, sodding, and rolling of grass.
<br />L. Drip Tubing
<br />1. Install all drip tubing in locations shown on the Irrigation Plan. To be laid out and installed per
<br />the irrigation drip details (sheet L-2.1).
<br />2. Install flush caps as indicated on details. r
<br />3. Install drip indicator on all drip zones. um 111IT
<br />M. Thrust Blocks and/or Joint Restraints , D Lin
<br />1. Install on pipe sized 2" or larger wherever the main pipeline: M
<br />a. Changes any direction at tees, angles, and crosses vertical and horizontal. M
<br />b. Changes at reducers.
<br />c. Stops at a dead-end.
<br />d. Valves at which thrust develops when closed.
<br />LL
<br />BACKFILLING L = y
<br />A. Do not begin backfilling operations until system tests and approvals have been completed. 0 S
<br />B. Bed all pipe a minimum of 2 inches. Backfill to 6 inches above pipe with soil free of rocks over ElmS a L
<br />1-inch diameter, debris, or organic matter. Backfill remainder of trench with soil of like quality to
<br />adjacent areas. Haul away all material not suitable for backfill.
<br />C. Compact backfill in 6-inch lifts thoroughly to prevent settling damage to grades or plant material.
<br />Leave trenches slightly mounded to allow for settlement after backfilling is completed. Low areas L W
<br />and damage caused by settling will be repaired by Contractor at no additional cost to the Project or N a N
<br />Owner.
<br />D. Prevent soil, rocks, or debris from entering pipes or sleeves.
<br />FLUSHING AND TESTING FSU# 4040
<br />A. Flushing: After piping, risers, and valves are in place and connected, but prior to installation of
<br />sprinkler heads, thoroughly flush piping system under full head of water pressure from dead end REVISION SCHEDULE
<br />fittings. Maintain flushing for 5 minutes through furthermost valves. Cap risers after flushing. NQ, PAIL DESCRIPTION
<br />INSPECTION 2 4.18.18 City comments (SPlIq
<br />A. Arrange for Owner's presence 48 hours in advance of inspection walk-through.
<br />B. Examine areas and conditions under which work of this section is to be performed and ensure a
<br />complete and operating installation prior to scheduling a walk-through.
<br />C. Operate each zone in its entirety for Owner at time of walk-through and open all valve boxes as
<br />directed. MILD PROJECT# 2018035
<br />D. Expose all drip emitters under operations for observation by Owner to demonstrate they are PRINTED FOR Permit
<br />performing and installed as designed prior to placing of mulch material. Schedule separate
<br />walk-through as necessary. DATE 3.1.18
<br />E. As necessary Owner will generate a list of items to be corrected prior to Final Acceptance. DRAWN BY SLG
<br />RESTORATION AND CLEANING Information contained on this drawing and in all digital files
<br />produced for above named project may not be reproduced in
<br />any manner without express written or verbal consent from
<br />A. Flush dirt and debris from piping before installing sprinklers and other devices. authorized project representatives.
<br />B. Adjust automatic control valves to provide flow rate of rated operating pressure required for each SHEET
<br />sprinkler circuit.
<br />C. Restore all damaged areas to original condition unless otherwise shown on plans at no additional Irrigation Specifications
<br />cost to the Project or Owner.
<br />E
<br />4)
<br />a
<br />SHEET NUMBER
<br />L=202
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