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Also, place the Sensor Bypass switch in the Active position for sensor-controlled operation. • Remove the valve common wire(s) from the valve common wire terminal and join to one RainSensor wire lead using a twist-on wire connector. Attach the remaining RainSensor wire lead to the valve common terminal. Timer with Sensor terminals, with or without pump start/ master valve: A Sensor Bypass Switch To Valves Common Wire From Valves Timer without Sensor terminals or pump start/ master valve: B Irrigation System Timer To Valves Common Wire From Valves Twist-on Wire Connector • Remove all common wires from the common terminal(s) and join to one RainSensor wire lead using a twist-on wire connector. (Be sure to include the common wire from the pump start relay or master valve in this connection). Attach the remaining RainSensor wire lead to the valve common terminal. Testing the RainSensor Installation To test the RainSensor operation, turn on a watering zone visible from the RainSensor location. Press and hold down the Test Spindle; watering should stop within a short time. If watering does not stop, recheck the wiring connections at the timer. If the timer has a Sensor Bypass switch, make sure the switch is set to Active. Note: The installation and operation of a freeze sensor should be used in conjunction with frequent visual checks of your sprinkler system. While freeze sensors are designed to prevent inadvertent watering during near or below freezing conditions, there are instances in which manual intervention is required. Air temperatures may be above freezing while ground and vegetation temperatures remain below freezing. Operation of your sprinkler system during these conditions may cause icing. Very rapid air temperature changes may also result in inadvertent watering, should the timing of sprinkling coincide with rapid temperature changes. The Sensor should be inspected for damage and manually tested regularly to ensure proper operation. Caution: Visual checks and prudent manual watering suspension must be used in conjunction with any freeze sensor. A freeze sensor should only be relied upon as an aid along with good watering practices including frequent visual checks. This device is not intended for farm/crop protection. Timer without Sensor terminals, with pump start/master valve: C Irrigation System Timer To Valves Pump Start Relay/Master Valve Twist-on Wire Connector Common Wire From Valves RainSensor Operation v Automatic Operation When the RainSensor activates due to sufficient rainfall (or freezing conditions - model 53853 only), watering will be terminated until the RainSensor automatically resets. The reset rate will vary depending on temperature, solar radiation, humidity and wind—the same conditions exposed to your landscape. v Bypass Operation To bypass RainSensor operation, place the timer’s sensor switch in the Bypass position, or temporarily remove the RainSensor from the valve common wire circuit. Model 53853 only: The freeze sensor is designed to terminate automatic watering when air temperature reaches approximately 3°C (37°F) +/- 2°C. Once freezing has occurred, the air temperature can increase above the sensor trigger point, while the ground temperature remains at or below freezing – resulting in icing conditions. Additionally, watering can occur if the automatic watering schedule coincides with a very rapid decrease in temperature. Specifications Mounting: Quick-ClipTM rain gutter bracket or screws (2 provided) Connection Wire: 25ft (7.6m) –1.0mm2 insulated 2-lead cable, UL-approved Sensor Type: Industry-standard hygroscopic disc stack with adjustable rainfall sensitivity Switch Rating: 3A, 24 VAC, Normally Open/Normally Closed Operating Temperature Range: -29°C to 60°C Model 53853 Rain+Freeze only: Freeze set point of 3°C (37°F) +/- 2°C. Material: Stainless steel and UV-resistant engineered polymer The Toro Promise — Limited One-Year Warranty The Toro Company and its affiliate, Toro Warranty Company, pursuant to an agreement between them, jointly warrants, to the owner against defects in material and workmanship for a period of one year from the date of purchase. Neither The Toro Company nor Toro Warranty Company is liable for failure of products not manufactured by them even though such products may be sold or used in conjunction with Toro products. During such warranty period, we will repair or replace, at our option, any part found to be defective. Return the defective part to the place of purchase. Our liability is limited solely to the replacement or repair of defective parts. There are no other express warranties. 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 The Toro Company nor Toro Warranty Company is liable for indirect, incidental or consequential damages in connection with the use of equipment, including but not limite...

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