K-Rain 3208-WRFS Owner's Manual And Installation Instructions
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K-Rain 3208-WRFS Owner's Manual And Installation Instructions

Suspends automatic irrigation systems, wireless rain/freeze sensor, rain/freeze sensor, rain sensor
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Rain Sensor
Suspends Automatic Irrigation Systems
OWNER'S MANUAL AND
INSTALLATION INSTRUCTIONS
3208-WRFS
Wireless Rain/Freeze Sensor
3208-HRFS
Rain/Freeze Sensor
3208-HRS
Rain Sensor
Save water and ensure healthy
landscapes by suspending your irrigation
system on rainy days. K-Rain sensors
offer flexible, multiple rainfall settings
which are quick and easy to adjust.
K-Rain Manufacturing Corp.
1640 Australian Avenue | Riviera Beach, FL 33404 USA
561.844.1002 | FAX: 561.842.9493 | 1.800.735.7246
www.krain.com
32080011

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Summary of Contents for K-Rain 3208-WRFS

  • Page 1 3208-HRS Rain Sensor Save water and ensure healthy landscapes by suspending your irrigation system on rainy days. K-Rain sensors offer flexible, multiple rainfall settings which are quick and easy to adjust. K-Rain Manufacturing Corp. 1640 Australian Avenue | Riviera Beach, FL 33404 USA 561.844.1002 | FAX: 561.842.9493 | 1.800.735.7246...

  • Page 2: Rain Sensor Components

    4. Rainfall Adjustment Cap. The rain sensor cap can be adjusted to suspend watering when rainfall amounts of 1/8" (minimum setting) and 1/2" or more has fallen. 5. Freeze Sensor (for models 3208-WRFS and 3208-HRFS only). 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.

  • Page 3: Table Of Contents

    • Weather resistant. Engineered with impact modified, UV resistant polymer for outdoor exposure. • Maintenance free. No batteries to replace. • Unlike other Rain Sensors in the market, model 3208-WRFS (K-Rain wireless rain-freeze sensor) can be paired with multiple K-Rain Pro EX 2.0 Wifi enabled controllers within range, providing additional value for the end user.

  • Page 4: Installation

    INSTALLATION: 3208-WRFS 1. Install the RF Module receiver (Model 3206) into your Pro EX 2.0 Controller. 2. Pair your 3208 Wireless Rain-Freeze Sensor with the Pro EX 2.0 Controller. a. Place dial on pin position. Press UP button until “LEARN” is displayed on the LCD.
  • Page 5 The controller must be in Automatic mode in order for the sensor to work properly. Additional Features of the 3208-WRFS (Wireless Rain Freeze Sensor) • The Pro EX 2.0 Wifi enabled controller comes from the factory with wired rain sensor terminal enabled.
  • Page 6 WIRING Models 3208-HRFS (Rain Freeze Sensor) or 3208-HRS (Rain Sensor) IMPORTANT: The rain sensor is designed for 24-VAC irrigation controllers only. All wiring must conform to applicable local building codes and regulations. K-Rain Rain Sensors will not work with open circuit timers.
  • Page 7 Common Wire from Valves Wire Connector 3. Installing the wired rain sensors 3208-HRFS or 3208-HRS into controllers with pump start/master valve terminal; and without sensor terminals: FIGURE 2 Irrigation System Controller PUMP/ 24 VAC To Valves Pump Start Relay/ Master Valve Common Wire from Valves Wire Connector B.

  • Page 8: Mounting The Rain Sensor

    MOUNTING THE RAIN SENSOR STANDARD FLAT MOUNTING Mount the sensor on a surface that is unobstructed to rain fall, but away from the path of the sprinkler water spray. GUTTER MOUNTING Allows the rain sensor to be mounted directly to the side of the gutter.

  • Page 9: Adjustments And Operation

    ADJUSTMENTS AND OPERATION When the Rain Sensor activates due to sufficient rainfall (after rainfall quantities of 1/8" through 1/2" or more), the sprinkler system will become inactive until the moisture-absorbent discs inside the Rain Sensor have dried out. To adjust to the desired quantity of rainfall, rotate the cap on the rain sensor housing to the range desired (See Figure 3).

  • Page 10: Specifications

    ADDITIONAL SPECS FOR WIRELESS VERSION: Rain/Freeze Wireless Range: Up to 400 feet or 120 meters (Line of Sight) Freeze Set Point: 37°F for 3208-WRFS (Wireless Rain Freeze Sensor) Average Battery Life: Designed to operate up to 8 years (under normal conditions)

  • Page 11: Fcc Declaration Of Conformity

    Compliance Test Report Number 16FAB01000511 Compliance Test Report Date March 22, 2016 Responsible Party K-Rain Manufacturing Corporation Address 1640 Australian Ave, Riviera Beach, FL 33404 Telephone 561-844-1002 This equipment has been tested and found to comply with the limits for class B digital devices, pursuant to part 15 of the FCC Rules.

  • Page 12: Warranty And Fcc Notice

    K-Rain Manufacturing warrants that its products will be free from materials and workmanship defects for a period of 2 years. With proof of purchase provided, K-Rain will replace, free of charge, the defective part or parts found to be defective under normal use and service for the warranty period.

This manual is also suitable for:

3208-hrfs3208-hrs

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