Holman N10372 Field Wiring Connections, Terminal Block Layout, Power Supply Connections

Page 11

Installation Instructions

Field Wiring Connections

PREPARATION

1Prepare wires for hook-up by cutting the wires to the correct length and stripping approximately 6.0mm (¼ inch) of insulation from the end to be connected to the controller.

2Ensure terminal block screws are loosened sufficiently to permit easy access for wire ends. Insert stripped wire ends into the clamp aperture and tighten screws. Do not over tighten as this may damage the terminal block.

3A maximum of 0.5 Amps may be supplied by any output. Check the inrush current of your solenoid coils before connecting more than two valves to any one station.

Terminal Block Layout

The terminal block is laid out as follows:

Fuse located under battery cover.

 

GLOSSARY

 

 

AC

24VAC Power Supply

 

COM

Common valve wire input

 

PUMP

Master valve or pump start active wire

 

ST1 to ST6

Station (Valve) active wire connection

 

 

 

PAGE 18

 

Installation Instructions

Power Supply Connections

The controller itself can run off a 240V AC to 24V AC external transformer..

It is recommended that the transformer is not connected to a 240V AC supply which is also servicing or supplying motors (i.e. Air conditioners, pool pumps, refrigerators, etc.) Lighting circuits are suitable as a power source.

Connections to the unit are as follows:

Connection Of Valves

Up to two 24VAC Solenoid Valves can be connected to each station output and wired back to the common (COM) thus:

Valve wires enter the controller

PAGE 19

through the rear

Image 11
Contents Irrigation Controller Features Table Of ContentsIntroduction GlossaryProgramming Instructions General tips for easy programming Programming ExampleOther Functions Set Start Times ProgrammingSet Current Time & Correct Day Set Calendar OptionalOdd / Even Day Selection Optional Set Watering DaysInterval Day Selection Individual Day SelectionSet Starts Set Watering Days Set Station Run Times Manual OperationsSystem Test Facility Run a Single StationOther Features Turn the dial to Rain Sensor Selection To cancel or clear a rain sensor delayMounting The Controller Installation InstructionsRain Off Mode Water BudgetingTerminal Block Layout Field Wiring ConnectionsPower Supply Connections Fuse located under battery coverPlug Pack Model Electrical CharacteristicsPower Supply Pump Hook-Up ConnectionsFollow these steps Fault Finding GuideServicing The Controller Spare Watering Planner Your Guarantee