A/C on with baseboard heat

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T. tam

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Hi all, I read here a lot and learn a lot thanks. I have been out of the residential end of things for a few years and can't remember if you can wire the 240 volt 20 amp A/C circuit on the same breaker as the 240 volt 20 amp electric heat. And is there a code reference to verify it? I could use the room in the panel. thanks
 
T. tam said:
Hi all, I read here a lot and learn a lot thanks. I have been out of the residential end of things for a few years and can't remember if you can wire the 240 volt 20 amp A/C circuit on the same breaker as the 240 volt 20 amp electric heat. And is there a code reference to verify it? I could use the room in the panel. thanks
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You can if you have hardwired them so only one of them can run at a time
 
jumper said:
Not necessarily. Depends on the loads and if 210.23(A)(1) or (2) applies.
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I agree.

At first I was thinking 220.60 would allow it but that only applies to feeders or services not branch circuits.

220.60 Noncoincident Loads. Where it is unlikely that
two or more noncoincident loads will be in use simultaneously,
it shall be permissible to use only the largest
load(s) that will be used at one time for calculating the total
load of a feeder or service.
Click to expand...
 
T. tam said:
Hi all, I read here a lot and learn a lot thanks. I have been out of the residential end of things for a few years and can't remember if you can wire the 240 volt 20 amp A/C circuit on the same breaker as the 240 volt 20 amp electric heat. And is there a code reference to verify it? I could use the room in the panel. thanks
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Just a thought here.

In some parts of the country, during certain times of the year, it can be helpful to be able to run baseboard heat and air conditioning at the same time to reduce indoor relative humidity. A better approach might be to install a whole house dehumidifier, but that has much more equipment costs and it might only be needed for a couple of weeks per year.
 
thanks guys, that is what I was thinking. although it is unlikely they will be on at the same time, it is possible. I thought there might be something I was missing.
 
I would take load calcs/measurements of some of the single pole circuits to see if any of those can be doubledup. Or run a new subpanel from the main panel and gt your main and sub panels some room to work
 
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