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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

Содержание Wireless RainSensor TWRFS

Страница 1: ...ogrammed 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 helpfu...

Страница 2: ...ld 7 Water Conservation LED s Indicate the water conservation level selected 9 Adjust Button Pressed to adjust or select values within the setup and oper ating features 10 Connection Cable Multi wire cable for connection to controller Sensor Module 1 Test Spindle Pressed to manually activate the RainSensor system 2 Rain Threshold Adjustment Adjustable cap enables the rainfall threshold to be set f...

Страница 3: ...roller s sensor connection terminals generally labeled SENSOR or SEN and connect the receiver wires as follows For normally open circuit Attach the WHITE and BROWN wires For normally closed circuit Attach the WHITE and YELLOW wires Note Disregard plus and minus polarity labels on the sensor terminals if present Cut or tape back the unused wire 5 Remove the valve common wire s from the terminal lab...

Страница 4: ... is visible from the sensor module location Note The manual activation cycle of some controllers bypasses the sensor inputs If the Receiver is connected to the controller s sensor inputs you will need to run an automatic timed watering program for these types of controllers With the sprinklers on manually activate the sensor module by pressing and holding the test spindle The sprinklers should shu...

Страница 5: ...er tighten See Figure 7A The sensor module can also be mounted on any suitable solid structure such as the side of the roof a shed or fence using the two supplied stainless steel screws See Figure 7B 2 Once securely fastened adjust the sensor module on the mounting bracket as needed to align the sensor module housing vertically 5 Rain gutter cross section view Do not over tighten thumbscrew Press ...

Страница 6: ...splayed 2 Press the Adjust button to select 0 0 to 5 0 Set Temperature Threshold TWRFS models only This feature enables the temperature threshold to be set from 35 F to 45 F or 2 C to 7 C When the selected temperature is observed the sensor will signal to stop irrigation 1 Press the Setup button three times The display will indicate the current temperature threshold setting 2 Press the Adjust butt...

Страница 7: ...nded period as set Using the Smart Bypass Feature Your Wireless RainSensor can be temporarily deactivated by using the built in Smart Bypass button Simply press this button once to bypass current RainSensor control The Sensor Status light will blink until the next time the sensor module dries out and automatically resets Pressing the Smart Bypass button again resumes the RainSensor control Pressin...

Страница 8: ...ove the battery cover and batteries Replace using two 3V CR2032 or equiva lent batteries Install with positive side of the batteries facing up Note Properly dispose of used batteries per the battery manufacturer s recommen dations 3 Reassemble the unit in reverse order 8 CR2032 Batteries Figure 9 Doc 5 12 21 04 6 36 PM Page 8 ...

Страница 9: ... installations with very thick dense walls or that involve large amounts of radio frequency inter ference electrical switching rooms etc where the effective range of the Wireless RainSensor may be greatly reduced Some helpful tips on mounting the sensor module and Receiver for the best Radio Frequency RF performance Always try to keep the antennas straight and fully extended straight up on the Rec...

Страница 10: ...stallation However there is no guarantee that interference will not occur in a particular installation If this equipment does cause 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 the receiving antenna relocate the remote control rece...

Страница 11: ...th adjustable rainfall sensitivity Transmitter Battery Type 2 3V cells CR2032 or equivalent Average Battery Life Five years Operating Temperature Range 20 F to 120 F Receiver Power Input 22 28 VACc VDC 100mA from existing controller timer with Class 2 UL approved transformer Relay Contacts Output Normally Open NO and Normally Closed NC 3A at 24 VAC Receiver Controls Sensor Status Indicator Signal ...

Страница 12: ...U S call 951 688 9221 This warranty does not apply where equipment is used or installation is performed in any manner contrary to Toro s specifications and instructions nor where equipment is altered or modified Neither Toro nor Toro Warranty Company is liable for indirect incidental or consequential damages in connection with the use of equipment including but not limited to vegetation loss the c...

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