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Old 03-15-2013, 06:28 PM   #16
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A/C Disconnect question


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Originally Posted by Marty S. View Post
Sorry. I interpreted that question as you not knowing how to get 240 from two breakers.
what do you mean?

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Old 03-16-2013, 12:33 AM   #17
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A/C Disconnect question


Mikem means you need to check seperately both hot wires coming in to verify power or not. If you just check across them for the 240v and one leg is off and not the other you wouldn't see voltage on your meter. so put one lead to one side the other lead to ground to check for 120v then repeat for other side
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Old 03-16-2013, 07:14 AM   #18
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A/C Disconnect question


Check all 2 pole breakers.Maybe fed from a 60 amp.
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Old 03-16-2013, 10:28 PM   #19
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A/C Disconnect question


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We have a couple trailer/mobile home parks where I am and usually the older trailers have a small 60 amp disconnect and even the power supplly box from the park is small. Perhaps to get around that and not have to upsize the panel ( usually is no physical room near the panel in the trailer either as it is in someone's bedroom ) they just take power from the pole below the meter. Is perfectly safe just different. Always amazes and interests me on this site the different stories about different areas and what they use for gas lines/venting/electrical hookups. Just when you think you have seen or know it all.

Mike if you are going to be a service tech try and remember this for the future as it may save your life. ALWAYS check to make sure the power is off at both incoming sides of a contactor as I have had old dried up 2 pole switches where only 1 pole worked/opened and left one side energized and gave me a good buzz. Never assume a switch works 100% or properly. Even worse when standing in wet grass workin on a AC. You end up toast.
Loll, thats why I always got that damn fieldpiece in my hands and I press that NCV button that buzzes if there is any electricity "ON" position . lol
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Old 03-17-2013, 09:06 AM   #20
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Here ia a scary story but true for all the guys who do work in attics. My Boss showed me some safety articles he got and apparently guys have been shocked/electrcouted in attics because of some of the lousy/creepy/slipshod hanging wiring you see in some touching the ductwork and making it live. The the tech brushes up against it and gets shocked. Scary to think that you should have to carry a non contact voltage tester and touch it to the ductwork and water lines etc to see if they may be live.
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