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Shielded, twisted pair wire for Lochinvar cascade feature.
JohnNY
Member Posts: 3,287
Hello, all. Does anyone have a source for buying a small quantity of shielded, twisted pair wire that I can use to link two boilers?
Many thanks,
John Cataneo
Many thanks,
John Cataneo
Contact John "JohnNY" Cataneo, NYC Master Plumber, Lic 1784
Consulting & Troubleshooting
Heating in NYC or NJ.
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Consulting & Troubleshooting
Heating in NYC or NJ.
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Comments
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Around here, one can get a cut of wire at an electrical supply house without too much difficulty, most|all of them carry at least something shielded. Online comes to mind, if you've got time to wait.
A 500' roll of 18/3 stranded shielded plenum-rated wire is only around $100. I know I'd hate to buy that much when I only need a few feet, but if it's a get'r'dun today kind of thing, that might be the fastest, if the electrical supply houses don't want to make a cut for you.
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Looking at the manual, it looks like virtually any shielded 1 pair control cable would work.0
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I bought this for some solar sensor wiring.Bob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream1 -
I would think that most hardware stores and electronic shops would sell it by the foot.
That's how it is in Wisconsin.
That being said, I can't count the number of boilers, including Lochinvar, that I have used standard 18-2 thermostat wire for communication, and it has worked just fine.
Thanks Gary0 -
Does Lochinvar recommend shielded cable or is there the chance of interference to other equipment?0
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Lochinvar recommends it. Controls companies use miles of shielded wire. I usually grab some drops from a buddy that does controls work."If you can't explain it simply, you don't understand it well enough"
Albert Einstein0 -
How much do you need?
I have tons of the stuff?0 -
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I need about 7 feet of the stuff but maybe I should just buy a roll.Gary Jansen_4 said:How much do you need?
I have tons of the stuff?
Contact John "JohnNY" Cataneo, NYC Master Plumber, Lic 1784
Consulting & Troubleshooting
Heating in NYC or NJ.
Classes0 -
I'll send some out today.
Thanks Gary0 -
If you are cascading 2 lochinvar boilers, then I am assuming you are running a header sensor. And possibly an outdoor sensor.
Do you need the shielded wire for those 2 sensors also?
Thanks Gary0 -
Gary, thank you so much. That's fantastic and very generous of you. The two sensors don't require shielded cable. Again, I'm very grateful.Gary Jansen_4 said:I'll send some out today.
Thanks GaryContact John "JohnNY" Cataneo, NYC Master Plumber, Lic 1784
Consulting & Troubleshooting
Heating in NYC or NJ.
Classes0 -
Not sure what Lochinvar's requirements are, but shielded twisted pair cable is often incorrectly provisioned in computer network environments without grounding, thereby defeating the whole purpose of having the shield. It's not simply a matter of terminating the wire leads.1
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The shield does block some types of noise without a low impedance at RF connection to ground, but for other types of noise the shield has to be properly prepared and connected to a shielded modular connector or jack.Wellness said:Not sure what Lochinvar's requirements are, but shielded twisted pair cable is often incorrectly provisioned in computer network environments without grounding, thereby defeating the whole purpose of having the shield. It's not simply a matter of terminating the wire leads.
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Received, @Gary Jansen_4 !! Thanks a million! I hope I can do something for you some day.Contact John "JohnNY" Cataneo, NYC Master Plumber, Lic 1784
Consulting & Troubleshooting
Heating in NYC or NJ.
Classes0
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