Troubleshooting - Rain Bird R-VAN1318 Installation Manual

Troubleshooting

The following table lists common problems and solutions
associated with nozzle operation.
Problem Cause
Nozzle is not rotating Filter screen may be
or watering. clogged with debris.
Water head pressure
may be too low.
A small amount of fine
grit may be inside the
nozzle.
Water path in the
rotary deflector may be
clogged with debris.
Nozzle operating
in a very sandy
environment.
Gaps or distorted Nozzle operating
streams in the water in a very sandy
spray pattern. environment.
Range of water spray Water head pressure
from nozzles is less may be low.
than expected.
Nozzle Maintenance
debris causes degradation of performance.
1. Unscrew the rotary nozzle from the riser.
2. Remove the clogged screen.
3. Clean and replace the screen.
4. Screw the nozzle back onto
the riser.

NOTE: Rotary Nozzles may
be damaged by mowers or
other equipment. Check
the nozzles regularly to
ensure proper operation
and for safety.
FILTER
SCREEN
3
R-VAN Adjustable Rotary Nozzle Installation Guide
Solution
Clean screen.
Effective pressure range
for R-VAN nozzles is 138
to 379 KPa. Recommended
operating pressure is 310
KPa. Check system.
Cycle the system a few
times to flush.
Visually inspect water paths
in the rotary deflector and
clean out any debris.
Wait 2 to 4 minutes to see if
sand flushes out and nozzle
begins to rotate.
Clean screen.
Ensure Radius Adjustment
Dial is fully open. Turn
clockwise until clicking
sound is heard. Check
system to ensure proper
pressure.
Nozzle Spacing Options
This section describes the two most common sprinkler
layout designs for an irrigation zone, square spacing
and triangular spacing. Single row applications are not
recommended. Since the application rate of R-VAN
Adjustable Rotary Nozzles is much lower than standard
spray nozzles, mixing rotary and spray nozzles in the same
zone is not recommended.

NOTE: Square and triangular spacing is typically
based on 50% diameter of throw.
Square Spacing
Square spacing is a sprinkler layout where nozzles are
placed in a square pattern, with the same distance between
all nozzles. This is the best pattern for areas with 90
areas that overlap, causing some over watering.
Triangular Spacing
Triangular spacing is a sprinkler layout where nozzles are
placed in a triangular grid, with the same distance between
all nozzles. This works best for irregularly shaped areas. More
surface area is watered with less overlap.
corners
°
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