RAIN BIRD 639894 Lawn Sprinkler Control User Manual

RAIN BIRD 639894 Lawn Sprinkler Control

Product Information

Specifications

• Station Count: 4, 6, 8
• Automatic Programs: 3
• Start Times per Program: 4
• Custom Run Days: Yes
• Permanent Days Off: Per Program
• Master Valve/ Pump Start Relay: Supported
• Rain Delay: Supported
• Rain or Rain/Freeze Sensor: Supported
• Rain Sensor Control: Global or by Station
• Season Adjust: Global or by Program
• Manual Station Run: Yes
• Manual Test All Stations: Yes
• Quick Start Program Run: Yes
• Station Advance: Yes
• Short Detect: Yes
• Delay Between Stations: Yes
• LNK2 WiFi Module: Supported
• Save and Restore Programming: Yes

Product Usage Instructions

Installation

If You Are Replacing an Existing Controller

1. Take a photo of the wiring details, which will be useful to reference when installing the new controller.
2. Unplug the power cord from the AC power outlet and disconnect the wires from the controller.

Mount New Controller

WARNING:
Unless installed with custom wiring, choose a mounting location on a wall within six feet of an AC power outlet and at least 15 feet away from major appliances or air conditioners.

1. Drive a mounting screw into the wall, leaving a 1/8-inch gap between the screw head and the wall surface (use supplied wall anchors if necessary).
2. Locate the keyhole slot on the back of the controller and hang it securely on the mounting screw.
3. Remove the wire bay cover on the lower part of the controller and drive a second screw through the open hole and into the wall (use supplied wall anchors if necessary).

Connect Valve Wiring

NOTICE:
With the wire bay cover removed, route all field wires through the rightmost opening at the bottom of the controller and into the wiring compartment.

1. Connect a field common wire to the common terminal (C) on the controller.
2. Connect both rain or rain/freeze sensor wires to the SENS terminals.
3. For detailed installation and operation of a rain or rain/freeze sensor, refer to the sensor manufacturer’s installation instructions.

Connect Master Valve (optional)

NOTICE:

1. Using a direct burial cable, connect one of the wires from the master valve to the master valve terminal (M).
2. Connect the remaining wire from the master valve to the common terminal (C).

Connect Pump Start Relay (optional)

NOTICE:

1. Using a direct burial cable, connect one of the wires from the pump start relay to the master valve terminal (M).
2. Connect the remaining wire from the pump start relay to the common terminal (C).
3. To avoid possible pump damage in the event run times are assigned to unused stations, connect a short jumper wire from all unused station terminals to the nearest zone terminal in use.
4. For detailed installation and operation of pump start relay, refer to pump manufacturer’s installation instructions.

FAQ

• Q: How many automatic programs are supported?
  A: The controller supports 3 automatic programs.

• Q: Can I manually run a single station?
  A: Yes, you can manually run a single station.

• Q: Can I test all stations manually?
  A: Yes, you can test all stations manually.

• Q: Is the LNK2 WiFi Module supported?
  A: Yes, the LNK2 WiFi Module is supported.

Feature

Installation

If You Are Replacing an Existing Controller

1. Take a photo of the wiring details, which will be useful to reference when installing the new controller.
2. Unplug the power cord from the AC power outlet and disconnect the wires from the controller.

Mount New Controller

WARNING

• Install the controller with the power supply cord exit side pointing downwards and through the leftmost opening at the bottom of the controller to avoid ingress of water.
• DO NOT apply power until you have completed and checked all wiring connections.
• DO NOT attempt to link two or more controllers together using a single transformer.

1. Unless installed with custom wiring, choose a mounting location on a wall within six feet of an AC power outlet and at least 15 feet away from major appliances or air conditioners.
2. Drive a mounting screw into the wall, leaving a 1/8-inch gap between the screw head and the wall surface (use supplied wall anchors if necessary).
3. Locate the keyhole slot on the back of the controller and hang it securely on the mounting screw.
4. Remove the wire bay cover on the lower part of the controller and drive a second screw through the open hole and into the wall (use supplied wall anchors if necessary).

Connect Valve Wiring

NOTICE

• DO NOT route valve wires through the same opening as power wires.
• DO NOT connect more than one valve to the same zone terminal (1–8).

1. With the wire bay cover removed, route all field wires through the rightmost opening at the bottom of the controller and into the wiring compartment.
2. Connect one wire from each valve to one of the numbered station terminals (1–8) on the controller.
3. Connect a field common wire to the common terminal (C) on the controller.

Connect Rain or Rain/Freeze Sensor (optional)

NOTICE

• DO NOT remove the jumper wire unless connecting a rain or rain/freeze sensor. The controller will not function if the jumper wire is removed, and a rain or rain/freeze sensor is not connected.
• Rain Bird controllers are only compatible with normally closed rain or rain/freeze sensors.
• Check local and/or state regulations to determine if a rain or rain/freeze sensor is required.

1. Remove the yellow jumper wire from the SENS terminals on the controller.
2. Connect both rain or rain/freeze sensor wires to the SENS terminals.
3. For detailed installation and operation of a rain or rain/freeze sensor, refer to sensor manufacturer’s installation instructions.

Connect Master Valve (optional)

NOTICE

• DO NOT route the master valve wires through the same opening as the power wires.
• DO NOT connect more than one valve to the master valve terminal (M).

1. Using a direct burial cable, connect one of the wires from the master valve to the master valve terminal (M).
2. Connect the remaining wire from the master valve to the common terminal (C).

Connect Pump Start Relay (optional)

NOTICE

• DO NOT route the pump start relay valve wires through the same opening as the power wires.
• A pump start relay connects to the controller in the same way as a master valve, but connects differently at the water source.
• This controller DOES NOT provide power for a pump. A relay must be wired according to pump manufacturer’s installation instructions.

1. Using a direct burial cable, connect one of the wires from the pump start relay to the master valve terminal (M).
2. Connect the remaining wire from the pump start relay to the common terminal (C).
3. To avoid possible pump damage in the event run times are assigned to unused stations, connect a short jumper wire from all unused station terminals to the nearest zone terminal in use.
4. For detailed installation and operation of pump start relay, refer to pump manufacturer’s installation instructions.

Connect Power

• Indoor controller: With the wire bay cover removed, connect the power wires to the 24VAC terminals prior to plugging the transformer into a power outlet.
• Outdoor controller must be plugged into a weatherproof outlet when installed outdoors.

Programming

Set the Date and Time

1. Turn the dial to DATE/TIME.
2. Press the < or > button to select the setting to change.
3. Press the – or + button to change the setting value.

Change the Time Format (12- or 24-Hour)

1. With MINUTES blinking, press > button.
2. Press the – or + button to select the desired time format, then press the> button to return to the time setting.

Set Watering Start Times Up to four start times are available for each program.

1. Turn the dial to START TIMES.
2. Press the PROGRAM SELECT button to choose the desired program (if necessary).
3. Press the < or > button to select an available start time.
4. Press the – or + button to set the selected start time (ensure the AM/PM setting is correct).
5. Press > to set additional start times.

Set Station Run Times
Run times can be set from one minute up to six hours.

1. Turn the dial to START TIMES.
2. Press the PROGRAM SELECT button to choose the desired program (if necessary).
3. Press the < or > button to select a station.
4. Press the – or + button to set the run time for the selected station.
5. Press the> button to set additional station run times.

Set Watering Days
Set watering to custom days, or watering to occur on specific days of the week.

1. Turn the dial to RUN DAYS.
2. Press the PROGRAM SELECT button to choose the desired program (if necessary).
3. Press the – or + button to set the selected (blinking) day as either ON or OFF, and to automatically move to the next day.
4. You can press the < or > button at any time to move the cursor to the previous or next day.

Set watering to occur on odd or even calendar days.

1. Turn the dial to RUN DAYS.
2. Press the PROGRAM SELECT button to choose the desired program (if necessary).
3. Press and hold < and > buttons at the same time until ODD or EVEN is displayed.

Set watering to cyclic watering or watering occurs at specific intervals.

1. Turn the dial to RUN DAYS.
2. Press the PROGRAM SELECT button to choose the desired program (if necessary).
3. On the custom days screen, press the> button until the cyclic screen is displayed (after SUN).
4. Press the – or + button to set the desired day cycle, then press >.
5. Press the – or + button to set the days remaining before the cycle begins. The next watering day updates on the display to indicate the day that watering will start.

NOTICE
If Sunday is selected, > will enter and activate cyclic watering. If this is not desired, press the > button again to return to watering by custom days.

Run a Single Program
Start watering immediately for one program.

1. Turn the dial to AUTO RUN.
2. Press the PROGRAM SELECT button to choose the desired program (if necessary).
3. Press and hold the> button to start the selected program.

During manual watering, the display shows a blinking symbol, the active station number or program, and the remaining run time. To cancel manual watering, turn the dial to OFF for three seconds until the screen shows OFF.

Manual Watering

Test All Stations
Start watering immediately for all programmed stations.

1. Turn the dial to MANUAL STATION.
2. Press the – or + button to set a run time.
3. Press and hold the> button or turn the dial to AUTORUN to start the manual station test.

Run a Single Station
Start watering immediately for a single station.

1. Turn the dial to MANUAL STATION.
2. Press the> button to display the MANUAL STATION screen.
3. Press the < or > button to select a station.
4. Press the – or + button to set a run time.
5. Press and hold the> button or turn the dial to AUTORUN to start the selected station.

Delay Watering

Rain Delay
Suspend watering for up to 14 days.

1. Turn the dial to AUTORUN, then press and hold the + button.
2. Press the – or + button to set the days remaining. The next watering day will be updated on the display to indicate when watering will resume.
3. To cancel a rain delay, set the days remaining back to 0.

Permanent Days Off
Prevent watering on selected days of the week (for odd, even, or cyclic programming only).

1. Turn the dial to RUN DAYS.
2. Press the PROGRAM SELECT button to choose the desired program (if necessary).
3. Press and hold the PROGRAM SELECT button.
4. Press the + button to set the selected (blinking) day as a permanent day off or press + button to leave the day on.

Season Adjust

Change the watering duration (from 5% to 200%) for all zones associated with run times.

1. Turn the dial to SEASON ADJUST.
2. Press the – or + button to increase or decrease the global percentage setting.
3. To adjust an individual program, press the PROGRAM SELECT button to choose the desired program (if necessary).

NOTICE
To use season adjust correctly, ensure the schedule is set to the maximum time that would be needed for the time of the year that requires the most watering, which is typically the hottest/driest time of the year.

Rain Sensor

Set the controller to obey or ignore a rain sensor. When set to ACTIVE, automatic irrigation will be suspended if rainfall is detected. When set to BYPASS, all programs will ignore the rain sensor.

1. Turn the dial to SENSOR.
2. Press the – or + button to select ACTIVE (obey) or BYPASS (ignore).

Controller Reset

• If the controller is not working properly, you can try pressing RESET.
• Insert a small tool, such as a paper clip, into the RESET access hole and press until the controller is reset.
• Previously programmed watering schedules will not be affected by the reset.

Remote Accessories

Remote Accessories (optional)

• Rain Bird TRU Controllers are upgradeable to WiFi-based remote monitoring and control via Apple® iOS® or Android™ mobile devices with the addition of a LNK2 WiFi Module (sold separately).
• For more information on the LNK2 WiFi Module, visit wifi.rainbird.com.
• Apple is a trademark of Apple Inc, registered in the U.S. and other countries. iOS is a trademark of Cisco Systems Inc. Android is a trademark of Google LLC.

Professional Programming Features

• Turn the dial to the desired position.
• Press and hold < and > buttons at the same time.

Lawn Sprinkler Control

1. AUTO RUN: Watering occurs automatically
2. DATE/TIME: Set the current date and time
3. START TIMES: Set up to four start times per program
4. RUN TIMES: Set run times for each program
5. RUN DAYS: Set watering day options for each program
6. SENSOR: Set the controller to obey or ignore a rain sensor
7. SEASON ADJUST: Adjust run times from 5% to 200%
8. MANUAL STATION: Start watering any or all stations immediately
9. OFF: Disables automatic irrigation
10. < />: Select programming options
11. –/+: Adjust program settings
12. PROGRAM SELECT: Select program A, B or C
13. WIRING BAY WITH REMOVABLE COVER: Contains terminal block to connect valve zones and optional accessories
14. POWER CORD: Six-foot power cord

CONTROLLER CASE (outdoor model):
Controller case with removable door for protection against inclement weather

Maximum recommended padlock dimensions.

Safety Instructions

WARNING

This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capacity, or lack of experience and knowledge unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure that they do not play with the appliance.
If the supply cord is damaged, it must be replaced by the manufacturer, its service agent, or similarly qualified persons in order to avoid a hazard.
If the power supply unit is damaged, it must be replaced by the power supply unit available from the manufacturer or its service agent.
Special precautions must be taken when valve wires are located adjacent to, or share a conduit with other wires, such as those used for landscape lighting or other electrical systems.
Separate and insulate all conductors carefully, taking care not to damage wire insulation during installation. An electrical “short” (contact) between the valve wires and another power source can damage the controller and create a fire hazard.
This controller uses a non-replaceable lithium battery. Lithium batteries are hazardous and can cause severe or fatal injuries in two hours or less if it is swallowed or placed inside any part of the body. Medical attention should be sought immediately if this is suspected. Keep batteries away from children.
DO NOT apply power until you have completed and checked all wiring connections.
DO NOT attempt to link two or more controllers together using a single transformer.
CAUTION
Indoor controller: Install the controller indoors, with normal household air circulation and not exposed to smoke or excessive condensation.
Only use the provided power supply unit. It provides the voltage required by the controller.
All electrical connections and wiring runs must comply with local building codes. Some local codes require that only a licensed or certified electrician can install power. Only professional personnel should install the controller. Check your local building codes for guidance.
NOTICE

Changes or modifications not expressly approved by Rain Bird could void the user’s authority to operate the equipment.
Use only Rain Bird-approved accessory devices. Unapproved devices may damage the controller and void the warranty.

SUPPLIER’S DECLARATION OF CONFORMITY

47 CFR § 2.1077 Compliance Information
Unique identifier: TRU4I, TRU6I, TRU8O
Responsible Party – Rain Bird Corporation, 9491 Ridgehaven Court, Suite C, San Diego, CA 92123, USA, www.rainbird.com.

Note:
This equipment has been tested and found to comply with the limits for a Class B digital device, under part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used by the instructions, may cause harmful interference to radio communications.

However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the receiver.
• Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

Technical Support

For help setting up or operating the Rain Bird TRU Controller, please call Rain Bird toll-free Technical Support at: 1-800-RAIN BIRD (800-724-6247) or visit www.rainbird.com.

For more information, including troubleshooting, scan the QR code.

Rain Bird Corporation
6991 East Southpoint Road
Tucson, AZ 85756, USA
www.rainbird.com
®Registered trademark of the Rain Bird Corporation
©2023 Rain Bird Corporation

References

• Rain Bird Smart Irrigation WiFi Timer
• Rain Bird | A Global Irrigation Company

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