Mini-Weather Station (Rain/Wind/Freeze)

Control irrigation system operation with sensors for wind; rain and temperature.

Having a climate like a smorgasbord can make for some tricky business when it concerns your irrigation system. Of course; you can simply look out the window and decide whether to turn on the sprinklers manually each day; but that defeats the purpose of an automatic system. What you really need is an automatic device that can make the decision whether there is too much rain; too much wind or too much cold to do the watering. With the Hunter Mini-Weather Station you get each of Hunter's three different sensor devices in one single convenient unit. The Mini-Clik® rain sensor shuts sprinklers off in a storm and keeps them off; automatically compensating for the amount of rainfall that occurred. The Freeze-Clik® prevents system activation by automatically stopping the flow of water when outdoor temperatures drop near freezing. The Wind-Clik® shuts off systems during periods of high wind; then automatically resets the system when conditions are more favorable. Easy to mount (it attaches to your controller with just two wires) and easy to use; the Mini-Weather Station takes all the guesswork out of when you shouldn't water.

Features and Benefitss

Mini-Weather Station Specifications

Operating Specifications

Electrical Rating: 120 volts; 5 amps max

Mini-Clik®

There’s nothing more embarrassing– or more wasteful or costly–than an irrigation system that runs when it doesn’t have to…in the rain. Mini-Clik^® pro vides the simplest; most effective way to prevent sprinklers from coming on during or after precipitation.

• Adjustable Settings: Measure rainfall in quantities of 1/8" to 1"

Wind-Clik®

With Wind-Clik you’ll save water; worry; and money as your system will only be operating at the times when you can be sure that the water intended for your landscape will reach its destination. Reduce liability issues by turning off wind-blown sprinklers that soak pedestrian paths or roadways with passing cars.

• Wind Vane Diameter: 5 inches
• Wind Speed Adjustments:
  Actuation: 12-35 mph
  Reset: 8-24

Freeze-Clik®

A freeze sets in overnight...you arise to see a landscape frozen over; with ice on adjoining driveways; sidewalks; and even roadways. In some areas; where tem­perature swings like this are all too common; the results are not only hazardous to the life of your lawn and plants; it can also be hazardous to those who walk or drive nearby. The Freeze-Clik automatically stops irrigation systems from activat­ing when the outdoor temperature drops to a near freezing level.

• Temperature Setpoint: 37°F (3°C) +/- 2°C
• Temperature Differential: +/- 1°C
• Sensor Element: Double epoxy sealed; weatherproof

Mini-Weather Station Instructions

General

The three sensors combined on this product are for wind speed; rainfall and temperature (near-freezing conditions). Each sensor operates independently of the other; therefore; any or all of them may be switching at a given moment. See the separate product installation instructions for details on the Mini-Clik® or Wind-Clik® operation and settings. Use only the “mounting” details contained on this sheet.

Mounting

The weather station is designed to mount on a post of 2" PVC pipe. However; any combination of pipe and fittings can be used to tailor an installation. The enclosed “reducer” fitting has two purposes: 1) It allows for the use of 1/2" PVC pipe for shorter mounts; and 2) Screwed down onto surface (wood post or deck); it acts as a base for the weather station to fit onto.

Important: For most accurate temperature sensing; rotate the weather station so the thermostat portion points north.

Wiring

Wiring to the Hunter SRC Controller

The Mini-Weather Station connects directly to the SRC. This allows you to easily override the sensor by using the RUN (BYPASS SENSOR) position on the dial.

1. Route the wires from the Mini-Weather Station up through the same opening used for valve wiring.
2. Connect one wire to the RS terminal and other to the C terminal (See Figure 1).
3. Connect the valve common to the RS terminal.

Wiring to the Hunter Pro-C or ICC Controller

The Mini-Weather Station connects directly to the Pro-C or ICC. This allows you to easily override the sensor by using the Sensor switch on the front panel.

1. Remove the jumper from the two “SEN” terminals.
2. Route the wires from the rain sensor up through the same conduit opening used for valve wiring.
3. Connect one wire to the terminal labeled “SEN” and the other wire to the other “SEN” terminal (See Figure 2).

Other 24 VAC Controllers

All three sensors are electrically connected in a series; so only two wires need to be used to connect to the irrigation controller. Use the green and silver (clear insulation) wires to hook up to normally-closed logic situations (See Figure 3). Follow the wiring instructions in any of the separate sensor manuals; or place the two wires on the controller's “sensor input” screw terminals if available (See Figure 4). For controllers with normally-open sensor inputs (most Toro models); please consult factory.

Note:: For extending wires; use wire 18AWG or heavier.