Residential Sprinkler System Design Handbook A Step-By-Step Introduction to Design and Installation
T and installing single family residential sprinkler systems. It Table of Contents is set up in an easy-to-follow format with illustrations and Plot Plan and Design................................................................ 1 his booklet is intended to be used when designing helpful charts.
1 Plot Plan and Design A. Plot Plan And Design 1. The first step in designing a residential system is to measure the property and indicate the location of the house. On a separate piece of paper sketch out your property and place your measurements on the sketch. AREA C AREA B AREA D Graph Areas AREA A AREA E Be sure to include all concrete or brick walks and patios, TIPS driveways and fences.
2 Sprinkler System Design Capacity B. Determine System Design Capacity When planning an efficient automatic irrigation system, you must first determine the correct Sprinkler System Design Capacity – how much water is available for irrigation. To check water pressure, attach a pressure gauge to the outside tap nearest the water meter or water source. A pressure gauge can be obtained from your local Hunter dealer. If the system will be installed using the city water supply, follow steps 1 – 3 below.
3 Select Sprinkler Heads C. Select Sprinkler Heads There are three basic types of sprinklers for residential use: large area rotors, rotating stream spray sprinklers and small area fan spray sprinklers. Large area rotors and rotating stream spray sprinklers should never be installed on the same zone as small area fan spray sprinklers. High efficiency spray nozzles such as Pro-Spray® MP Rotators® should be AREA B considered in place of traditional spray nozzles.
4 Locating Sprinkler Heads D. Draw Sprinkler Locations Decide where you will be installing large area sprinklers and where you will be installing small area sprays. Large area sprinklers should be 8 meters to 12 meters apart. Small area sprays should be 3 meters to 5 meters apart. This spacing will allow sprinklers to overlap their throw to assure even water distribution. Do not mix sprinkler types within one area.
5 Divide Sprinklers Into Zones E. Divide Areas Into Zones Unless you have a very small yard, you probably do not have enough water capacity to irrigate the entire yard at once. Many areas will require more water than the residence has available (system design capacity). Area C Area B Area D Indicate Zones Area A Area E You will need to section the yard into “zones.” Dividing the area into zones is an easy process. Beginning with area A: ÷ = 1. Refer back to the working pressure entered on page 2.
6 Locate Valves and Size Pipes F. Locate Valves • Layout and Size Pipes Every zone on the plot plan must have its own valve. The valve controls the on-off flow of water to a sprinkler zone. Indicate one control valve for each zone and then group the valves together in an assembly called a valve manifold. Area B Area C ZONE 3 ZONE 4 ZONE 5 ZONE 6 ZONE 2 Area D Valves and Pipe Area A ZONE 1 Determine where you want the valve manifold for each area.
7 Point of Connection 4. Add the l/min requirements of those two heads together to size the next pipe. 5. Add the l/min requirements of the next head to the previous total. 6. Continue to do this until you get to the zone valve. Be sure not to size a pipe smaller than the chart indicates. 7. Repeat Steps 1 through 6 for each zone. Main Line 1. Determine the location for the system point of connection. It should be near the water supply. 2.
AUTOMATIC SPRINKLER CONTROLLER X-CORE GEAR DRIVEN RO I-20 SMART CONTROL WIRELESS SOLAR SYNC RECEIVER 3/4” REMOTE CONTROL ROAM RECEIVER SWING JOIN SJ SERIE PVC EL OR POLY ELL (IN PVC (POLYVINYL CH OR POLY (POLYETH SPRINKLER CONTROLLER WIRE LOW VOLTAGE WATERPROOF WIRE CONNECTORS CAP FOR FUTURE USE ACCUPRESS VALV AUTOMATIC C PGV SERIES MALE ADAPTO VALVE BOX BRASS GATE VALVE OR BRASS BALL VALVE POINT OF CONNECTION ( P.O.
REMOTE CONTROL ROAM TRANSMITTER OTORS 0 ULTRA NT ES LL (SLIP THREAD) NSERT X THREAD) PVC TEE (SLIP X SLIP X SLIP) OR POLY TEE (INSERT X INSERT X INSERT) NOZZELS MP ROTATOR® SERIES HLORIDE) PIPE HYLENE) PIPE SPRAY SPRINKLERS PRO-SPRAY® PRS-40 SERIES 1/2” SWING JOINT SJ SERIES PVC REDUCING TEE (SLIP X SLIP X THREAD) OR POLY REDUCING TEE (INSERT X INSERT X THREAD) -SYNC 50 AUTOMATIC SURE REGULATOR SMART CONTROL WIRELESS SOLAR SYNC TRANSMITTER VE BOX CONTROL VALVE ORS Hunter Sprinkler System Overv
10 System Installation H. System Installation Making the Point of Connection to City Water Supply 1. Refer to the Point Of Connection (P.O.C.) detail on page 7. 2. Turn off the water supply to the residence. 3. Dig a hole to expose the supply line. 4. Cut a 25 mm piece out of the supply line, slip the compression tee onto the pipe, and tighten the compression nuts. 5. Install the brass nipple and gate valve. 6. Install the valve box for easy access to gate valve. 7. Turn the water back on to the residence.
11 System Installation Installing the Valve Manifolds 1. Refer to the valve manifold detail on the Sprinkler System Overview. 2. Maintain at least a 15 cm clearance between valves for future maintenance. 3. Provide a 8 cm long or longer capped stub-out for future additions. 4. Install the valve manifolds onto the main line. Assembling PVC: 1. Place solvent on inside of fitting and outside of pipe. PVC: 2. Slip pipe into fitting and wipe off excess solvent. 5.
12 System Installation Installing the Controller 1. Decide where you would like to locate the controller. Most residential controllers should be installed indoors. Follow the installation instructions that come with the controller. You will need a 220–240V or 115V electrical outlet to plug in the low voltage transformer. 2. Use color-coded irrigation wire to connect the valves to the controller. The total number of wires you need is one for each of the valves, plus one common wire.
13 Materials List Using the plot plan and the check lists below, do a take-off to determine your Materials List. If you are unsure what a part is called, check the Sprinkler System Overview. Use colored pencils and as you count or measure each component, mark the plan and write the item down here on this Materials List. Make sure to list everything on your plan. 1. Exterior Point of Connection – Non Freezing Valve Box Square or Round WATER METER Brass Gate Valve or Brass Ball Valve 1.
14 Materials List 3. Control Valves: Count the number of valves by size. Using 3. Valves the valve detail, list the materials needed. Valve Box 4. Controller: The number of valves will determine the size Waterproof Wire Connectors of the controller required. You will need one controller station for each valve. Measure the wire run from the controller to the farthest valve. Note: Use color-coded, Automatic Control Valve pgv Series multi-conductor low voltage wire.
15 Materials List 5. Sprinklers: Count the number of sprinkler heads needed 5. Sprinklers by type and record the totals in the chart. 6. Swing Joints: Count the sprinkler heads and determine the number of pre-assembled Hunter swing joints needed, or: 7. Calculate the number of fittings needed by size. GEAR DRIVE ROTOR PGP ultra (3) 3/4” street ells (thread x thread) 5.
16 Glossary of Terms Arc – Describes how far around in a circular pattern a sprinkler will rotate or spray. A sprinkler with a 90° arc would spray a quarter circle. BACKFLOW PREVENTER – A device installed between the P.O.C. and the sprinklers that is designed to prevent the backflow of contaminated water into the drinking water. Different countries require different types of backflow preventers.
Watering Guidelines Application Rates Watering application rates will vary with different types of plants, soils and climates. New lawn must be kept moist, and newly-transplanted shrubs must be watered every day or two. Established plants will need deeper, less frequent watering. The following guidelines will get you started. WATERING GUIDELINES Cool, non-arid climates – Apply 25 mm of water per week. Hot, arid climates – Apply 50 mm of water per week.
® Hunter Industries Incorporated • The Irrigation Innovators U.S.A.: 1940 Diamond Street • San Marcos, California 92078 • www.HunterIndustries.com Europe: Bât.
