HRC 100 Wireless Rain/Freeze Sensor - HRC100-WRS

Hydro-Rain’s HRC 100 wireless rain or rain/freeze sensor saves water by automatically suspending irrigation watering cycles when it rains or freezes or both.

Features & Benefits:

• Quick Set rainfall settings for variable climates - 1/8", 1/4", 1/2", 3/4" and 1"
• no tools required for mounting sensor to a rain gutter
• Rain Off - variable rainfall settings keep the sprinkler system off during rain storms and then returns the system to automatic mode
• Freeze Off - shuts off sprinkler system when temperature drops below freezing, protecting the landscape from the effects of freezing water
• hygroscopic discs absorb water to activate rain switch
• Universal - for sue with most brands of 24V output sprinkler controllers
• 30 feet of heavy duty connection wire included and ready for installation
• dry vent allows air circulation adjustment for fast or slow dry

Connecting a Rain Sensor
Remove the factory-installed jumper wire from the wiring terminal ports (yellow in color) labeled “Sensor”. Connect the rain sensor wires to the wiring terminal ports (yellow in color) labeled “Sensor”.

Note: Refer to your rain sensor manual for specific wiring instructions.

Place the sensor on/off switch to the “on” position to begin operation

Rain Sensor Bypass
This HRC 100 C is equipped with a sensor override “on/off” switch above the sensor terminals. This switch is for use during maintenance and repairs, so the sprinkler controller can be operated even if the rain sensor is in active mode.

Important: If the rain sensor switch is in the “on” position and no sensor is connected, the sprinkler controller will not operate. To resume the HRC 100 C operation place the switch in the off position