Lawn Genie RJ 54048 User manual
Connecting the Valve Wires (Figure 3)
Step 1- Route a multi-wire, direct-burial sprinkler
cable from the sprinkler timer to the valves. If the
cable run is less than 800', 18 AWG wire is suffi-
cient. For distance from 800' – 2000', 14 AWG wire
is recommended.
Step 2- Using wire splice connectors, attach either
wire from each valve solenoid to the white cable
wire. This wire is designated as the valve “Common
Wire.” Connect the remaining wire from the sole-
noid to one of the color-coded wires.
Important: All wire splices must be properly
insulated to prevent a short circuit or corrosion
from occurring. Installing grease caps or waterproof
connectors is recommended.
Step 3- At the timer, connect the control wires from
valves to the numbered terminals in the desired
operating sequence. Connect the valve common
wire to the valve common terminal.
Step 4- Using the timer’s manual control feature,
test the operation of each valve.
Finishing the Installation (Figure 4)
Step 1- Once valve operation has been successfully
tested with the timer, control wires can be buried
and a valve box installed.
Manual Operation (Figure 5)
• Manually open the valve by turning the bleed
screw counterclockwise 1/2 turn. To close the valve,
turn the bleed screw clockwise. Do not over-
tighten!
Note: The valve may take several seconds to shut
off when operated manually.
• To adjust flow, (model 54049 only) turn the flow control knob clockwise to
decrease or counterclockwise to increase flow.
The Lawn Genie Promise — Limited One-Year Warranty
The Lawn Genie Company and its affiliate, Lawn Genie Warranty Company, pursuant to an agreement between
them, jointly warrants, to the owner, each new piece of equipment against defects in material and workmanship for the
period of one year from the date of purchase.
Neither Lawn Genie nor Lawn Genie Warranty Company is liable for failure of products not manufactured by them
even though such products may be sold or used in conjunction with Lawn Genie products.
During such warranty period, we will repair or replace, at our option, any part found to be defective.
Return the defective part to the place of purchase.
Our liability is limited solely to the replacement or repair of defective parts. There are no other express warranties.
This warranty does not apply where equipment is used, or installation is performed, in any manner contrary to Lawn
Genie’s specifications and instructions, nor where equipment is altered or modified.
Neither Lawn Genie nor Lawn Genie Warranty Company is liable for indirect, incidental or consequential dam-
ages in connection with the use of equipment, including but not limited to: vegetation loss, the cost of substitute
equipment or services required during periods of malfunction or resulting non-use, property damage or personal
injury resulting from installer’s negligence.
Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation
or exclusion may not apply to you.
All implied warranties, including those of merchantability and fitness for use, are limited to the duration of this
express warranty.
Some states do not allow limitations of how long an implied warranty lasts, so the above limitation may not apply to you.
This warranty gives you specific legal rights and you may have other rights which vary from state to state.
For more information or questions regarding this product, please call us at 1-800-231-5117
-
Installation Guide -
The RJ by Lawn Genie 3/4" in-line electric valves
are designed for use in an automatic sprinkler
system controlled by a 24 V a.c. timer. Both valve
models feature 3/4" female-threaded inlet and
outlet and manual bleed control which enables
the valve to be operated without the use of the
timer. In addition, the 54049 valve features
manual flow control adjustable to zero flow.
The in-line valve is generally installed below grade,
grouped with other valves in a manifold arrangement
and housed in a protective valve box.
Important: The 3/4" in-line valve does not provide backflow protection.
A backflow prevention device, such as the Toro Pressure Vacuum Breaker (PVB)
model number 53300, installed between the in-line valve(s) and the water source
point of connection is acceptable in most areas to prevent back-siphoning of contami-
nants through the sprinkler system into the potable water supply. Before connecting
your irrigation system to the potable water supply, consult with your local water utility
department for information regarding specific backflow prevention requirements.
If water pressure exceeds 70 PSI, a pressure regulator should be installed.
Valve Specifications:
Operating Pressure: 10–150 PSI (80 PSI max. recommended)
Flow Range: 5–25 GPM
Solenoid:
24 V a.c., 60 Hz (nominal)
19 V a.c., 60 Hz (minimum)
Inrush: 0.40 amps, 9.6 VA @ 24 V a.c., 60 Hz
Holding: 0.20 amps, 4.8 VA @ 24 V a.c., 60 Hz
Friction Loss:
GPM Flow 5 10152025
PSI Loss 3.6 3.2 2.9 3.8 5.8
Installation Procedure
Note: To ensure ease of installation and optimum valve performance, please read
through the following instructions completely before starting the installation procedure.
Step 1- Route 3/4" schedule 40 PVC pipe from the backflow preventer or system
shut-off device to the valve location. Flush the supply line thoroughly!
Caution: Dirt, rocks and debris entering the valve can damage the valve and/or
cause the valve to malfunction.
Step 2- The diagrams on the next page illustrate the two most commonly recom-
mended methods of installing valves in a manifold arrangement. Referring to
installation Method A or B, follow one of the installation procedures.
Figure 3
Figure 4
Figure 5
Bleed Screw
Flow Control
Knob
Timer Connection
Common
Wire
Grease Cap
© 2008 Lawn Genie, All Rights Reserved. Form Number 373-0142 Rev. C
Open Close
Decrease
Increase
54048
3/4" In-line Valve Model 54048 and 54049
54049
• Installation Method A (Figure 1)
Step 1- Apply three complete wraps of Teflon®tape to the slip/thread adapters.
Caution: Use only Teflon tape on threaded connections. Pipe dope and other
types of pipe thread sealants can damage plastic threads.
Step 2- Install a slip/thread adapter into each end of the valve and tighten securely.
Step 3- Cut a 4" length of 1" schedule 40 PVC pipe for each valve.
Step 4- Using PVC primer and cement, assemble the valve and PVC components as
shown, aligning the tee fitting perpendicular to the valve. Repeat this procedure for
each valve in the manifold.
Note: The last valve in the manifold can be connected with a 90° elbow instead of
a tee. However, if future expansion of the sprinkler system is expected, use the tee
fitting and a 4" section of 1" schedule 40 PVC pipe capped on the end. This enables
the main line to be easily connected to additional downstream valves.
Step 5- Using 4" sections of 1" schedule 40 PVC pipe, connect the valve assemblies
together to create the manifold, making sure the valves are aligned during assembly.
Step 6- Ensure the end of the supply line is dry and free of burrs. Cement the
manifold to the main line.
Step 7- Allow the cemented connections to cure for a minimum of one hour (or
per the cement manufacturer’s directions) before applying water pressure. If no
leaks occur after pressurization, begin connecting the sprinkle zone piping using
1" class 200 PVC pipe.
• Installation Method B (Figure 2)
Step 1- Apply three complete wraps of Teflon tape to both ends of a 4" long 1" PVC
threaded pipe nipple and the slip/thread adapter.
Caution: Use only Teflon tape on threaded connections. Pipe dope and other
types of pipe thread sealants can damage plastic threads.
Step 2-Install the pipe nipple to the valve inlet and tee fitting and tighten securely,
aligning the tee perpendicular to the valve. Install the slip/thread adapter into the
valve outlet and tighten securely. Repeat this procedure for each valve in the manifold.
Note: The last valve in the manifold can be connected with a 90° elbow instead of
a tee. However, if future expansion of the sprinkler system is expected, use the tee
fitting and a 4" section of 1" schedule 40 PVC pipe capped on the end. This enables
the main line to be easily connected to additional downstream valves.
Step 3- Using 4" sections of 1" schedule 40 PVC pipe, connect the valve assemblies
together to create the manifold, making sure the valves are aligned during assembly.
Step 4- Ensure the end of the supply line is dry and free of burrs. Cement the mani-
fold to the main line.
Step 5- Allow the cemented connections to cure for a minimum of one hour (or
per the cement manufacturer’s directions) before applying water pressure. If no
leaks occur after pressurization, begin connecting the sprinkle zone piping using
1" class 200 PVC pipe.
3/4" Slip x Thread Adapter
(Teflon-Taped threads)
3/4" Slip x Slip x
Slip PVC Tee
3/4" Slip x Slip x
Thread PVC Tee
3/4" PVC Threaded Pipe Nipple 4" Long
(Teflon-taped Threads)
3/4" Sch 40 PVC
4" Long
Valve Inlet
1" Slip x Thread Adapter
(Teflon-taped Threads)
3/4" Schedule 40 PVC 4" Long
Valve Inlet
Figure 1 -
Installation Method A
Figure 2 -
Installation Method B 90° Elbow or Tee and Cap Plug
3/4" Sch 40 PVC
Water Supply Pipe
Valve Manifold Assembly
3/4" Class 200 PVC
Pipe To Sprinklers
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