Universal Wireless
Rain/Freeze Sensor
OWNER’S MANUAL AND
INSTALLATION INSTRUCTIONS
3208-UWRFS
Page 1: ...Universal Wireless Rain Freeze Sensor OWNER S MANUAL AND INSTALLATION INSTRUCTIONS 3208 UWRFS ...
Page 2: ...t Sensor Terminals 6 Wiring for all Installation Methods 7 Check to verify correct wiring 7 Mounting the Universal Rain Sensor Receiver 8 Pairing with the Wireless Rain Sensor 8 Mounting the Rain Sensor 9 Standard Flat Mounting 9 Gutter Mounting 9 Tips for Mounting 9 Adjustments And Operation 10 Bypassing The Rain Sensor 10 Specifications 11 Troubleshooting 12 FCC Declaration of Conformity 13 FCC ...
Page 3: ...a set amount of rain has fallen and or freezing temperatures exist the sensor will trigger the controller to suspend watering The freeze sensor interrupts your sprinklers and reduces the hazards of standing water freezing on your driveway sidewalks and patios when temperatures drop below 37 F 3 C Once the rain sensor has dried sufficiently the sensor allows normal sprinkler operation Works with mo...
Page 4: ...Wifi enabled controllers within range providing additional value for the end user Quick Installation and Programming The Universal Wireless Rain Freeze Sensor provides the advantage of extremely quick installation Weather Resistant Engineered with impact modified UV resistant polymer for outdoor exposure Maintenance Free No batteries to replace 2 in 1 Mounting Provides flexible installation with s...
Page 5: ...d LED Indicates program suspension due to a rain or freeze event The LED will be off normally and will turn red whenever a rain or freeze event occurs 4 Battery LED Indicates health of the rain sensor battery The LED will be green at good battery health and turn red when battery life is under 10 5 Radio Antenna Receives wireless signal from the rain sensor up to 300 feet 6 Wiring Harness Includes ...
Page 6: ...h 1 2 or more has fallen 5 Freeze Sensor Prevents the irrigation system from starting when temperatures drop to 37 F or below When temperatures rise above 37 F the sensor will enable automatic watering 6 Radio Antenna Transmits a wireless signal to the receiver NOTE Unit needs to be mounted with the radio antenna in a vertical position 7 Battery Transfer Signal LED Pressing the Manual Test Pin for...
Page 7: ...SENSOR terminals Controllers with global overide and or switch must be active on in order for the sensor to work properly Installing the K Rain Universal Rain Sensor Receiver into controllers WITHOUT sensor terminals a WITHOUT pump start relay master valve Fig 1 Find the controller common terminal generally marked C or COM and attach one yellow Universal Sensor wire directly to the terminal Locate...
Page 8: ... yellow wire of the rain sensor to the common terminal on the controller WIRING For all installation methods Once the rain sensor receiver is mounted run the wires to the controller using wire clips every few feet to fasten it If an extension to the wires provided is needed use the following table to determine the minimum wire gauge needed Extension Needed 25 50 ft 50 100 ft 100 ft or more Minimum...
Page 9: ...ng harness grommet seals correctly against the 2 halves of the housing PAIRING WITH THE WIRELESS RAIN SENSOR Press and hold the PAIR button on the Universal Rain Sensor Receiver for at least 3 seconds until the green PAIRED LED begins flashing rapidly fig 4 Next press and hold the MANUAL TEST PIN on the Wireless Rain Freeze Sensor for at least 3 seconds The PAIRED and BATTERY LEDs will both displa...
Page 10: ... to the controller will help to avoid interference to the wireless signal b Mount in the highest possible position where rain can fall directly upon the rain sensor c The rain sensor mounting location will affect the reset rate amount of time it takes the rain sensor to dry out sufficiently for the sprinkler system to reactivate For example mounting the rain sensor on a very sunny southeastern end...
Page 11: ...bility on the rain sensor that will slow down the reset rate By turning the Vent Adjustment Tab See Figure 4 to completely or partially cover the ventilation holes the hygroscopic discs will dry more slowly This adjustment can compensate for an overly sunny installation location or peculiar soil conditions Experimenting with the Vent Adjustment Tab will best determine the ideal vent setting BYPASS...
Page 12: ...2 in 1 bracket for standard flat and gutter installation Sensor Type Industry standard hygroscopic disc stack with adjustable rainfall sensitivity Housing UV resistant engineered polymer Warranty Five years Rain Freeze Wireless Range Up to 300 feet or 120 meters Line of Sight Freeze Set Point 37 F Control Wire 3 feet outdoor rated 16 gauge cable UL approved Average Battery Life Designed to operate...
Page 13: ...the suggestions above you may have a unique controller normally open f Ensure paired rain sensor has been installed in a location within good connection range to Universal Rain Sensor Receiver g Check controller bypass feature switch settings System will not shut off even after heavy rainfall a Check wiring for correct installation See Installation section b Check sensitivity setting on paired rai...
Page 14: ...adio 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 please refer to your user s manual for instructions on correcting the problem The undersigned hereby declare that the equipment specified above conforms to the above requirements 13 Trade Name Wireless Rai...
Page 15: ...ructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particu lar installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment on and off the user is encouraged to try to correct the interference by one or more of the following measures R...
Page 16: ...rge the part or parts found to be defective under normal use and service for the warranty period Prior to replacement K Rain reserves the right to inspect and authorize the defective part or parts all defective material returns must be authorized in writing by K Rain Liability under this warranty is limited solely to the replacement or repair of defective parts This warranty is given expressly and...
