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

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