GRI 2600 Wiring question

[dhiren]

Hey Guys,
 
Bit of a noob question - i'm trying to wire a 4 wire gri 2600 water sensor to my elk m1 and it mentions that this should be wired as a NC sensor. When I look at my elk m1 (had a contractor do the install and wiring) all other door sensors use only 2 of the 4 wires i.e only red and black are connected to the panel with a 22k resistor on the end of the red wire


Am I to follow the same method for these water sensors or should i be using all 4 wires ? The instructions for the water sensors document that all wires need to be used with the resistor on the green/ yellow wires.
 
Appreciate the help

 

[Desert_AIP]

Two of the wires are for 12VDC, Red is + and Black is -.
The other two, White and Green, are the contacts that go to the panel zone, it doesn't make any difference which one goes to which side of the zone.
Wire them as a NC sensor with an EOL resistor in series.

http://www.grisk.com/specialty/pdf/2600%20Series.pdf