Toro Wireless RainSensor TWRS - User Manual

Introduction
The Toro Wireless RainSensor, models TWRS and TWRFS (rain/freeze sensor),
working in conjunction with your irrigation controller, will automatically suspend
watering when a predetermined rainfall amount or temperature is met.
The Wireless RainSensor system consists
of two components: A digital, program-
mable receiver and a remote sensor
module. The receiver installs next to the
controller and connects to the 24 VAC
power source and sensor terminals
(if included) or splices into the valve
common circuit. The sensor module is
attached to a rain gutter, roof edge, fence,
etc. within 500 feet (line of sight) of the
receiver. Sensor information is sent to the
receiver using an ultra high-frequency
radio signal.
To compensate for variations in soil type
and sensor location, the receiver is easily
programmed to delay the controller from
resuming operation up to 4 days. This
feature also enables controller operation
to be placed in “Rain Delay” mode from 1
to 5 days when inclement weather condi-
tions are expected.
Now, take a moment to browse completely through this guide before starting the
installation. Since the Wireless RainSensors is an accessory for your irrigation
controller, it will be helpful have the controller user’s guide on hand for reference.
Receiver
Sensor
Table of Contents
RainSensor Component Overview......2
Install and Connect the Receiver.........2
Initial Receiver Testing .........................3
Sensor Threshold Adjustment..............1
Installing the Sensor Module ...............1
Testing System Operation....................5
Receiver Set Up...................................6
Rain/Freeze Sensor Operation.............7
Using the Smart Bypass Feature.........7
Power Down.........................................7
Receiver Learn Mode...........................7
Sensor Battery Replacement...............8
Solving Reception Problems................9
FCC Information...................................1
Specifications.......................................1
Warranty...............................................1
Wireless RainSensor
™
Models TWRS and TWRFS
Installation and Operation Guide
Doc 5 12/21/04 6:51 PM Page 1

Toro Wireless RainSensor TWRS Specifications

General

Brand	Toro
Model	Wireless RainSensor TWRS
Category	Accessories
Language	English

Summary

RainSensor Component Overview

Receiver Module Components

Details the components of the wireless receiver module, including its display and controls.

Sensor Module Components

Details the components of the remote wireless sensor module and its mounting features.

Installation and Connection

Receiver Installation and Wiring

Guides on physically installing the receiver and connecting its wires to the irrigation controller.

Initial Testing and Setup

Initial Receiver and Sensor Testing

Procedures for powering up the receiver and testing its communication with the sensor module.

Sensor Module Installation Site Selection

Guidance on choosing an optimal location for the sensor module for best signal reception.

Rainfall Threshold Adjustment

Instructions on setting the sensor's sensitivity to detect specific rainfall amounts.

Sensor Module Installation

Mounting the Sensor Module

Detailed instructions on how to securely mount the sensor module using brackets or screws.

Receiver Configuration

Water Conservation Mode Setup

How to set the water conservation delay based on soil type and sensor location.

Set Water Delay Function

Configure a rain delay function for the irrigation system from 1 to 5 days.

Temperature Threshold Setting (TWRFS)

Adjust the temperature at which the sensor will suspend irrigation for TWRFS models.

Temperature Scale Setting (TWRFS)

Choose between Fahrenheit or Celsius for temperature readings on TWRFS models.

Set Dry Out Days

Configure the number of days before watering resumes after the sensor dries out.

Advanced Receiver Functions

Signal Strength Measurement

How to check the wireless signal strength between the sensor and receiver.

Battery Strength Indicator

Understanding the indicator for sensor battery charge level.

Using the Smart Bypass Feature

Temporarily deactivate the RainSensor control using the Smart Bypass button.

Receiver Power Down and Restart

Instructions on how to turn the receiver off and on.

Receiver Learn Mode

Procedure for pairing a new sensor module with the receiver.

Sensor Module Maintenance

Sensor Module Battery Replacement

Step-by-step guide for replacing the batteries in the sensor module.

Troubleshooting

Solving Reception Problems

Tips and advice for improving wireless signal reception and resolving communication issues.

Regulatory Information

Electromagnetic Compatibility (FCC)

Information regarding FCC compliance and potential radio frequency interference.

Specifications

Product Specifications

Technical details of the receiver and sensor module, including range, power, and battery type.

Warranty Information

Toro Limited Five-Year Warranty

Details the terms and conditions of the product's five-year limited warranty.