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Tuesday, March 6th 2012, 10:50am

ACC 1200

Hi All

We have had a request for the installation of a Hunter ACC 1200 for a client. Are there any out of the ordinary components that we would for this system. I keep reading about dides. Are these included or do I need to purchase these separately?

Please forgive my ignorance



Tuesday, March 6th 2012, 11:03am

The manual is available HERE. I can't find anything on "dides" in the manual. It looks like a fairly standard installation. It is an extremely versatile controller so programming might take a few extra minutes. There are a number of expansion modules and weather sensors available HERE. If you can find any more info on 'dides' or have more questions please let us know.




Wednesday, March 7th 2012, 6:33pm

Thanks for the info. Sorry for the typo. It should be "decoders" we would like to use a two wire path so I would like to know how to go about this.

Thanks Brendan


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Wednesday, March 7th 2012, 7:57pm

2-wire is a world apart from standard controllers. Wiring and connections have to be without flaws. Diagnosing a problem would involve a clamp-around "leakage meter"


Thursday, March 8th 2012, 8:29am

To use an ACC 1200 for a 2-wire you would need to replace the standard module with an ADM-99 decoder module. Then along the wire you would install ICD Decoders according to number of valves needed in that area. A good high level overview is HERE. The next to last page has a good wiring example.

We don't do much in 2-wire as the cost per zone tends to be more expensive until you get into larger installations. How big? Don't know. I get different opinions. There are a number of advantages and its use in commercial installations is growing.

I'll be glad to help with any technical info I can but for real world applications/challenges info I'm going to defer to Wet_Boots and others who have worked with it in the field.

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