Toro RainSensors User Manual

Wireless Rain Sensor SeriesRain Sensor, Model TWRS andRain/Freeze Sensor, Model TWRFSUser’s GuideRainSensorAlpha7 3/10/2005 3:31 PM Page I

Initial System TestBefore installing the sensor module, test the sensor at close range to verify operation. Once thistest has been completed satisfact

9Sensor Module Features1– Rain Threshold Adjustment–Adjusts the rain sensor toaccumulate 1/8", 1/4", 1/2" or 3/4" (3mm, 6mm,12mm o

10Installing the Sensor ModuleChoosing the right installation site for the sensor module is the key to getting the maximum benefitfrom your sensor sys

113. Adjust the Rain sensor to the preferred rainfall threshold activation point. The settings are indicated in 1/8", 1/4", 1/2" and 3/

12A pipe-mount adapter is provided to enable sensor installation on a secured section of 1/2" (13mm)diameter Schedule 40 PVC pipe. Note: Metal pi

Freeze Sensor Site SelectionIn addition to the rain sensor site conditions listed on page 10, the following conditions arenecessary to ensure optimum

Set Temperature Activation Threshold (TWRFS models only)The freeze sensor temperature activation threshold is adjustable from 35°F to 45°F or 2°C to 7

Water Conservation Feature – By simply choosing the Minimum, Medium or Maximumconservation level that corresponds to your landscape’s soil type and th

Smart Bypass FeaturePressing the Smart Bypass button switches an active sensor systemOff and places it in the Bypass mode. When the sensor is bypassed

17Signal Strength DisplayThis feature displays sensor signal strength on a digital scale ranging from 0.0 to 10.2 1. Press the Setup button as needed

iIntroductionThe Toro Wireless RainSensor system, model TWRS for rain sensing and TWRFS for rain and freezesensing, is a powerful water conservation a

Dry Out FeatureThe Dry Out feature is provided to override the Water Conservation baseline level, allowing thedry-out delay period to be set in 0.5-da

Loss of communicationIf the sensor system does not communicate within a 24-hour period, it willremain in its current state (Active or Monitor). To ale

Turn the Receiver Module Off and On1. To turn the receiver module Off, press and hold the Adjust button untiltwo dashes are displayed (approximately 5

Sensor Module Battery Replacement1. Unscrew and remove the bottom cap from the sensorhousing.2. Grasping the edges of the circuit board assembly, care

TroubleshootingIf you encounter problems at any point in the installation process, or the components do not seemto function properly, try the Troubles

The receiver display is blank.• Check the 24 Vac power connections. The red power wires from the receiver must be connectedto the controller’s 24 Vac

24SpecificationsModels: TWRS (Wireless RainSensor) and TWRFS (Wireless Rain/Freeze Sensor)Wireless Communication Range: 500' (152.4m) LOS (line-o

The Toro Promise – Five-year Limited WarrantyThe Toro Company and its affiliate, Toro Warranty Company, pursuant to an agreement between them, jointly

Electromagnetic CompatibilityDomestic: This device complies with FCC rules Part 15. Operation is subject to the following two conditions: (1)This devi

1The wireless sensor system is comprised of a programmable, weather-resistant receiver moduleand a sensor module with built-in transmitter. The receiv

Getting StartedThe wireless rain sensor system is designed for easy installation, setup and years of trouble-freeoperation. In most cases, the system

3The sensor is adjusted to the preferredrainfall activation level.The sensor is installed using the Quick ClipTMmounting bracket or pipe-mount adapter

4Receiver Module Features1– Setup Button–Accesses the sensor system operating features. 2– Adjust Button–Scrolls through and selects settings within t

Installing the Receiver ModuleImportant: Installation of this product must comply with national and local building andelectrical codes. For assistance

6Connecting the Receiver WiresCAUTION: The receiver requires continuous 24 Vac power for operation. Connecting to110 Vac or higher will result in irre

For a normally-open sensor, attach theYellow wire to the remaining sensor terminal.Tape back the Brown wire. See Figure 3.4. Attach the Red wires to t