Laserfiche WebLink
dielectric gel sealant. Grease filled wire nuts shall not be allowed. <br />3.09 SLEEVING: <br />A. Pipe and wire shall be enclosed in separate Class 160 PVC sleeves at each walk, road <br />or path crossing as shown on the irrigation plan. Coordinate locations of sleeves <br />to accommodate system. Sleeves under existing roads, sidewalks, and paths shall <br />be bored or cut & patched as indicated on plan.. <br />3.10 ROCK EXCAVATION: <br />A. If rock or other underground debris is encountered in the alignment and depth shown on the plan, the <br />alignment and/ or depth shall be adjusted in order to avoid its excavation if at all possible. If alignment <br />and depth adjustment cannot be made and it becomes necessary to remove the rock, the Contractor shall <br />be paid for additional cost incurred in the handling of it. <br />3.11 WATER SUPPLY: <br />A. Water source for irrigation shall be 1 ''/2' galvanized pipe stubbed at location indicated on plan. <br />Contractor shall be responsible for all piping and appurtenances downstream of and including the <br />point of connection. <br />3.12 CONTROLLER INSTALLATION: <br />A. The controller shall be located and installed in irrigation enclosure. Connect to 110 VAC power <br />supply at location. Controller must be grounded. All power, control and communication lines <br />connected to controller shall be enclosed in conduit. <br />B. TDT soil moisture sensors shall be installed at locations shown in plan. These locations <br />are approximate and exact locations shall be determined by the City, the <br />Irrigation Consultant and the Irrigation Contractor. The sensors shall be installed at a <br />depth indicative of the root zone for the surrounding plant material (3" — 4" for turf). Sensors shall <br />be installed horizontally and backfilled with original soil. Backfill shall be compacted to ensure <br />that no voids exist around the sensor and to restore excavated soil as close as possible to original <br />bulk density. Install & Calibrate sensors per manufacturer's instructions. <br />C. Contractor shall configure Controller to utilize soil moisture sensors to efficiently irrigate the site. <br />Confer with owner for any time restrictions. <br />3.13 ELECTRICAL WORK: <br />A. Contractor shall be responsible for all low voltage wiring at controller location. <br />Wiring installation shall comply with all state and local codes. <br />3.14 AUTOMATIC CONTROL VALVE INSTALLATION: <br />A. All control valves shall be installed in valve boxes that provide adequate space for valve <br />servicing without excavation. Provide waterproof connections where control wires attach to valve. <br />Make connections using wire nuts and splice tubes filled with waterproof dielectric gel sealant. <br />Grease filled wire nuts shall not be allowed. Center valve in an upright position within the valve <br />box. Valve boxes shall be set on a 6" base of crushed rock with brick supports on each corner. <br />(Buckshot or pea gravel is available free from the Owner.) <br />3.15 ISOLATION VALVE INSTALLATION: <br />A N.A. <br />3.16 SPRINKLER HEAD INSTALLATION: <br />A. Sprinkler heads shall be set plumb to within 1/16" and level to finish grade and be re -adjusted and <br />/or changed as directed after lawn areas are completed to assure proper operation <br />3.17 DRIPPERLINE INSTALLATION: <br />A. N.A. <br />