Originally Posted By: gbell
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Question from inspection photo.
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Greg Bell
Bell Inspection Service
Question from inspection photo.
Originally Posted By: gbell
This post was automatically imported from our archived forum.
How many other things can you see wrong in this picture?
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Greg Bell
Bell Inspection Service
Originally Posted By: bking
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Some airhandlers with aux. heat strips of 15-18kw can have a 90amp 240volt circuit breaker. 10kw strips use 50-60 amp breakers.
Also a large commercial style oven in an expensive home that might use a 90 amp breaker.
correct answer could actually be A or C
A 90 amp C/B is not automatically wrong until you check the rating of the load wires and the appliance.
Originally Posted By: ckratzer
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I agree with Bruce.
What else is wrong? It appears as though they’re using neutral white wires in place of red or black hot wires.Although they did indicate with elec. tape that the white wire should be considered black or hot. I’d be interested in seeing the neutral bus bar.
Originally Posted By: ckratzer
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Addition to last message.I’ve worked in this type of box before.This type will try to kill you because the neutral bar is under the terminal edge of the breakers which is a really poor and dangerous design.
Originally Posted By: Mark Dudley
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I can beat that…
My inside panel has 100 amp breaker for the heat pump. The panel for the heat pump has 100 (main), 60 (a/c) and 50 (heat) amp breakers.
Originally Posted By: gbell
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I want to thank all of you. I learned something new from this question.
For me that is the first time that I have seen a 90 amp breaker. It was serving an air condenser that was rated for 40 amp.
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Greg Bell
Bell Inspection Service
Originally Posted By: jpope
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It’s a Zinsco. That’s what’s wrong!!
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Jeff Pope
JPI Home Inspection Service
“At JPI, we’ll help you look better”
(661) 212-0738
Originally Posted By: gbell
This post was automatically imported from our archived forum.
As you can see from others comments there is a possibility of several correct answers. When I first wrote the question I thought the correct answer would be E. But I stand corrected. This experience has shown me how difficult it is to write a new exam too take the place of what is available now. Gerry thank you so much for the time and effort you are putting into writing a new exam for NACHI.
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Greg Bell
Bell Inspection Service