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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 automati-
cally 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 cir-
cuit.
Model 53853 only: The freeze sensor is designed to terminate auto-
matic 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-Clip
TM
rain gutter bracket or screws (2 provided)
Connection Wire: 25ft (7.6m) –1.0mm
2
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 manu-
factured 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 INDI-
RECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES IN CONNECTION WITH THE USE OF
EQUIPMENT, INCLUDING BUT NOT LIMITED TO: VEGETATION LOSS, THE COST OF SUB-
STITUTE EQUIPMENT OR SERVICES REQUIRED DURING PERIODS OF MALFUNCTION OR
RESULTING NON-USE, PROPERTY DAMAGE OR PERSONAL INJURY RESULTING FROM
INSTALLER’S NEGLIGENCE.
Some states do not allow the exclusion or limitation of incidental or consequential damages, so the
above limitation or exclusion may not apply to you.
ALL IMPLIED WARRANTIES, INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR
USE, ARE LIMITED TO THE DURATION OF THIS EXPRESS WARRANTY.
Some states do not allow limitations of how long an implied warranty lasts, so the above limitation
may not apply to you.
This warranty gives you specific legal rights and you may have other rights which vary from state to
state.
© 2009 The Toro Company • www.toro.com • 1-800-367-8676 373-0542 Rev. B