HYDRO-RAIN HRM-12 Installation And Operating Manual Download Page 4

STEP 1: SET TO CURRENT TIME OF DAY

Rotate the day dial (1) clockwise until the current time of day lines up with the point

of the day switch arm (2).

STEP 2: TO SET THE PROGRAM DIALS (Skip-a-day)

Rotate the program 

1

 dial (3) clockwise until the current day lines up with the center

of the program switch arm (4). Program 2 dial (5) will rotate with the program 

1

 dial.

STEP 3: TO SET WATERING START TIME

Pull the day dial’s switch lug (6) out at the time of day watering is required to start.

More than one switch lug may be pulled out for multiple waterings in a 24 hour period.
All other switch lugs must be pushed in so they will not start to the day switch arm.

STEP 4: TO SET THE WATERING PROGRAM

Pull out program 1 and program 2 dials’ switch lugs (7) representing the days of the

week of watering for both programs. All other lugs must be pushed in so the program

switch arms will not be started on days to be skipped.

STEP 5: TO SET PROGRAM CIRCUIT SWITCHES AND CIRCUIT WATERING
TIMES

Place each of the twelve circuit switches (8) to the desired program: program 1,

program 2, or off. Before adjusting the watering time, place the master switch (9) in

the rain position. Each of the twelve circuits can then be individually adjusted for

watering time. To change the time simply rotate the selected circuit timing knob (IO)
until its raised line matches up with the minutes required on the circuit selector wheel
(11). if while making these adjustments the circuit selector wheel is moved off of its
set point, it must be returned to the set point before placing the master switch to its
automatic position. Rotate the circuit selector wheel clockwise until its pointer lines up
with the solid mark to the left of the set arrow. When the master switch is placed in

automatic, the wheel will move to its set position and stop.

CAUTION: Move selector wheel clockwise only.

NOTE: Watering time must exceed 15 minutes. Otherwise, watering
cycle will immediately repeat.

STEP 6: MASTER SWITCH

For programmed watering, move the master switch (9) to the automatic position. To

shut down the system (rain), move the master switch to the rain position. For manual
watering, move the master switch to the manual position, then move the desired
program circuit switch to the manual position. The selected circuit will run as long as
both switches are in their manual positions. If the master switch is moved back to the
automatic position and an automatic cycle starts with a program circuit switch left in
the manual position, the circuit selector wheel will move past the circuit without
watering.

STEP 7: CIRCUIT BREAKER

A tripped circuit breaker (12) indicates an electrical problem in the wiring to the

valves or in the valve. If the circuit breaker trips, the controller will stop on the circuit
causing the problem. To reset the circuit breaker, push the reset button.

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ZONE LEGEND

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Summary of Contents for HRM-12

Page 1: ...Ed Hydro Rain 12 STATION MANUAL CONTROLLER INSTALLATION AND OPERATING GUIDE MODEL HRM 12 ...

Page 2: ...No 1 to the terminal marked No 1 valve No 2 to terminal 2 etc See Figure 2 Connect the valve common wires to any terminal marked C If the valve wires are to be run through conduit a conduit junction box can be used by placing a reducer from 2 inch on one end and screw the 2 inch reducer into the hole STEP 1 PEDESTAL MOUNTING The pedestal should be mounted on a level concrete base about lOxlOx8 inc...

Page 3: ... I COMMON I I RELAY COIL FROM TO ONE SIDE OF EACH 24 VAC POWER VALVE 9 0 VA MAX LINE 60 CYCLE Figure 2 It is possible to change the HRM I2 s day changeover time from 12 OO AM midnight to 12 OO PM noon This will alleviate any watering problems that arise if there is a need to water past midnight INSTRUCTIONS To have the day changeover occur at 12 OO PM noon 1 2 3 Lay the controller down on a flat s...

Page 4: ...d line matches up with the minutes required on the circuit selector wheel 11 if while making these adjustments the circuit selector wheel is moved off of its set point it must be returned to the set point before placing the master switch to its automatic position Rotate the circuit selector wheel clockwise until its pointer lines up with the solid mark to the left of the set arrow When the master ...

Page 5: ... of any so called defective products NO IMPLIED WARRANTIES INCLUDING BUT NOT LIMITED TO FITNESS FOR A PARTICULAR PURPOSE WHERE APPLICABLE AND MERCHANTABILITY SHALL EXTEND BEYOND THE PERIOD OF THE EXPRESS WARRANTY DESCRIBED ABOVE IN NO EVENT SHALL HYDRO RAIN BE RESPONSIBLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES TO PROPERTY WHICH MAY ARISE FROM OR RELATE TO THE PURCHASE OF ANY HYDRO RAIN PRODUCT So...

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