DIG LEITMVA User manual

Ambient light powered,
smart irrigation controller
LEITMVA
LEIT1ASV.075
LEIT1ASV.100
INSTRUCTION MANUAL

Table of conTenTs
INTRODUCTION ……………………………………………………………… 3
1. About the controllers …………………………………………………… 3
2. Component identification ……………………………………………… 4
2.1 LEIT1.ASV with anti-siphon valve …………………………………… 4
2.2 LEIT1.MVA manual valve actuator …………………………………… 5
3. System components …………………………………………………… 6
4. Anti-siphon valve installation …………………………………………… 7
4.1 Changing actuator adapters ………………………………………… 9
4.2 Manual valve actuator installation …………………………………… 11
5. Programming ………………………………………………………… 13
6. Setting time and date …………………………………………………… 13
7. Setting watering day schedules ………………………………………… 15
8. Setting watering start time ……………………………………………… 17
9. Setting watering run times ……………………………………………… 19
10. Setting the SimpleSmart™ option ………………………………………… 21
11. Setting seasonal adjustment (monthly budget) …………………………… 24
12. Rain delay setting ……………………………………………………… 25
13. Events off setting ……………………………………………………… 26
14. Manual watering ……………………………………………………… 28
15. Connecting a rain sensor ……………………………………………… 29
16. Maintenance, troubleshooting and repairs ……………………………… 30
17. Warranty ……………………………………………………………… 33
18. Technical assistance …………………………………………………… 34
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Thank you for purchasing DIG’s LEIT-1™ ambient light powered irrigation controller.
1. abouT The conTrollers
The LEIT-1™ is a one-station, ambient light (solar) powered smart controller that
uses a patented energy management system to power the controller day and
night. The controller requires no batteries, AC power or direct sunlight and can be
installed above grade anywhere in the landscape.
The controller employs the latest in water conservation features and can be
pre-set to automatically adjust the watering durations according to regional
seasonal changes.
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2. componenT IDenTIfIcaTIon
2.1 leIT1.asv wITh anTI-sIphon valve
1. Solar PVM
2. LCD screen
3. 7 button keypad
4. Rain sensor connection
5. Quick reference label
6. Collapsible
solenoid wire
7. Manual flow control
8. External bleed screw
9. DC Solenoid
10. Anti-siphon cap
11. Pipe thread outlet
12. Pipe thread inlet
13. Anti-siphon valve
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2.2 leIT1.mva manual valve acTuaTor
See section 4.1 to change adapters from the factory 3⁄4 in. assembly to the
1 in. assembly.
1. Solar PVM
2. LCD screen
3. Quick reference label
4. 7 button keypad
5. Rain sensor connection
6. DC Solenoid
7. Collapsible solenoid wire
8. Manual flow control
9. External bleed screw
10. Actuator stem
Seat washer assemblies
AS FACTORY ASSEMBLED FOR
3/4 IN. BRASS VALVES ONLY
CHAMPION, RAIN BIRD & ORBIT
3/4 in. brass adapter
3/4 in. brass washer
Retainer clip
3/4 in. seat washer body
Main screw for seat
washer assembly
ASSEMBLY FOR ALL PLASTIC
VALVES & 1 IN. BRASS VALVES
CHAMPION & ORBIT adapter for 1
in. brass & RAINJET, RAIN BIRD &
ORBIT 3/4 in. & 1 in. plastic
1 in. brass washer
Retainer clip
1 in. & 3/4 in. seat washer body
Main screw for seat
washer assembly
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3. sYsTem componenTs
LCD Display
1. Time and Date - Indicates current time and day
2. Set Watering Days - Choose either specific days, odd/even days, or up to once
every 30 days
3. Start Time - Up to 5 start times per day available
4. Run Time - Watering duration from 1 minute to 6 hours
5. Manual Run - Appears when manual button is pushed
6. Set ET - Used to set one of the 20 SimpleSmart™ presets
7. Set Monthly Budget - Seasonal adjustment setting (0%-200%) in 5%
increments or to fine-tune SimpleSmart™ programming
8. Rain Delay - Delay irrigation setting from 1>99 days with automatic restart
9. Events Off - Suspends watering for any month or any specific day within
the month.
10. Power Level - Represents current charge level
11. Sensor - Appears only when sensor is connected and active
12. Watering - Appears when valve is open
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Control Buttons
Select programming mode
Turn ON/OFF program
Start/stop a manual cycle
Move left/right to select a value
Raise/lower the selected value
4. anTI-sIphon valve InsTallaTIon
The LEIT1ASV.075 can be installed directly to PVC pipe. (Inlet 3⁄4 in. FNPT, outlet
3⁄4 in. FNPT.)
Operating pressure: 10 to 125 PSI
Recommended operating pressure: 10 to 80 PSI
NOTE: Wrap all fittings with Teflon tape.
Do not use pipe cement on the valve as this will damage the valve and void
the warranty.
Make sure when wrapping fittings with Teflon tape that no excess gets into the
internal assembly. Tighten the fittings with a wrench, but do not over tighten.
NOTE: The LEIT1
. ASV must be installed at least 6 in. higher than the highest
sprinkler head on the system or back-drainage may occur. Additional control
valves must not be installed downstream of the anti-siphon valve. The valve must
not be operated continuously for more than 12 hours in any 24-hour period.
Consult local codes for specific details.
1. Flush main line until water runs clear before installation.
2. Shut off main water supply.
3. Install the anti-siphon valve directly to PVC pipe using 3⁄4 in. PVC male adapter or use
Schedule 80 nipple. The arrow on valve body indicates direction of water flow
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(see Figure 6).
4. Turn the main water supply on and pressurize the system.
5. To test the LEIT-1™, press the button. A click will be heard, indicating the
valve is open. An icon of a droplet on the upper left of the screen and the
run time remaining will appear on the display in 5 seconds. Check that the
system is operating correctly and press the button again to turn it off. A
second click will be heard indicating that the valve closed. The droplet icon
and the manual icon will disappear from the display and OFF will appear
momentarily; then the display will revert to the time of day.
6. Program the LEIT-1™ controller (see section 5).
FIGURE 6 FIGURE 7
6 IN. MINIMUM
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4.1 changIng acTuaTor aDapTers
The LEIT-1™ with actuator is factory set to fit a 3⁄4 in. brass manual anti-siphon
valve. To install the controller with actuator on a 1 in. manual anti-siphon valve
the 3⁄4 in. seat washer and adapter must be removed and replaced with the 1in.
adapter and seat washer, which are
included in this box.
1. Turn the actuator so that the seat
washer and the 3⁄4 in. threaded
adapter face up.
2. Using pliers, or a 5⁄16 in. wrench,
remove the seat washer screw by
turning counter clockwise and pull off the 3⁄4 in. seat washer assembly
(see Figure A).
3. Push the 3⁄4 in. threaded adapter
down towards the actuator to
ease the tension on the retainer
clip (see Figure B).
4. Next, place your thumb on one
side of the retainer clip and with
a pair of pliers grip the other
side of the retainer clip and pull
outwards, away from your thumb, and upwards, removing it from the base of the 3⁄4
in. threaded adapter then, remove the adapter (see Figure C).
FIGURE A
FIGURE B
FIGURE C
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5. Install the 1 in. threaded adapter by
pushing it onto the actuator stem
and making sure the notch on the
adapter lines up with the notch on
the stem of the actuator
(see Figure D).
6. Spread the retainer clip with your
thumbs and push the retainer into
the adapter until it clicks
(see Figure E).
7. Install the 1 in. seat washer assembly
as shown. Insert the seat washer
screw into the bottom of the actuator
stem and tighten turning clockwise
(see Figure F).
NOTE: Do not over-tighten.
FIGURE D
FIGURE F
FIGURE E
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