Is Electrical Hookup Universal for Water Heaters

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Old 03-01-05, 11:54 AM
intensedrive
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Is Electrical Hookup Universal for Water Heaters

I was wondering, Im replacing my 40 Gal Electric hot water heater and was wondering if the electrical hookup is universal or is a possibility that it might need to be changed
 
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Old 03-01-05, 05:54 PM
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h2o heater

If your existing hook-up is old enough, it may have 2 sets of 220 volt circuits

from the panel box, into the water heater. Your new heater will only need

one such circuit, as the heating elements operate in sequence , rather than

simultaneously, as the old ones did. Just follow the instructions that come

with the new unit and disconnect the unused circuit at the power source.

Oh, if your water heater panel is on a seperate meter, it's illegal to use the

left over circuit for someother use.
 
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Old 03-01-05, 06:15 PM
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Or your water heater could be on a 20 amp circuit, if old enough.
It should be on a dedicated 30 amp circuit with 10/2-with-ground wiring. Both insulated wires are 120v HOT, and it doesn't matter which one is connected to which insulated wire on the water heater. The bare ground wire goes on the green ground screw. There is no neutral on 220v.
Good Luck!
Mike
 
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