|American Wire Gauge||Distance (Feet)||International Wire (mm2)||Distance (meters)|
|AWG 18||908||0.8 mm2||267|
|AWG 16||1,446||1 mm2||333|
|AWG 14||2,292||1.5 mm2||500|
|AWG 12||3,650||2.5 mm2||833|
NOTE: Distances in the Wiring Table are calculated based on 60 Hz for American Wire Gauge, and 50 Hz for International, with wire temperature of 122°F (50°C), and a 10% safety factor.
It is possible to convert an existing conventionally wired system to EZ decoder operation by using existing wire bundles to create a two-wire path to each valve location and adding an EZ-1 decoder at each valve.
Tee-splicing the two-wire path is permissible. Use waterproof connectors in a valve box, and adequate slack at the splices (5 ft/1.5 m) to insure a reliable connection. Size the wire for the most distant decoder from the controller.
Earth grounding is not required in the two-wire path. However, it may be added in high-lightning areas for additional protection. Use Hunter model DUAL-S surge arrestors and connect the surge arrestor ground wire to earth ground hardware. Earth grounding hardware should consist of a 8’ (2.5 m) copper-clad steel rod, or a copper plate, installed at least 8' (2.5 m) away from the two-wire path.
The ICC2 or HCC controller should be grounded to earth with the ground attachment on side of the transformer cover, to approved earth ground hardware, ideally to a resistance of 10 ohms or less, as shown in the controller installation instructions.