Code Requirement for Electrical Outlet Near Minisplit
Kind of a technical question, but I’d value any input that anybody has. NEC 210.63 requires an electrical outlet to be installed in an “accessible” location within 25 feet of most HVAC equipment and on the “same level” as the equipment.https://up.codes/s/equipment-requiring-servicing
如附件所示，我有一个迷你拆分ODU，距离我的爬行空间3-4英尺。如果您打开我的爬行空间的门，里面有一个大约3-4英尺的插座。因此，从迷你拆分ODU到出口的总距离小于10英尺。
有人知道这种安排是否符合210.63？在我看来，它有资格成为一个“可访问”的位置，但也许不是吗？显然满足了25英尺的要求。我想它符合“相同水平”的要求，但是……也许不是吗？
Anyways, would value any input as to folks think this would pass, or if I need to add an additional outlet on the outside of the house next to the crawl space door.
谢谢。
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答复
The general interpretation of this rule in the trades is that the service outlet must be "within sight" of the equipment. That means if you're a maintenance tech, and you walk over to the equipment you're been contracted to service, you can look around and find the outlet without any difficulty. That's the intent of the code -- to provide power for maintenance work. In your situation, the outlet would not be "within sight" of the equipment for someone unfamiliar with your floorplan, so I'd say your existing outlet doesn't comply.
我还没有看到这种特殊的代码在住宅项目中像在商业项目中一样积极地执行。我对您的建议是，如果出现问题，请向检查员展示您的情况，看看他们是否会通过。如果您得到“否，那不符合代码”，请在设备附近添加一个插座，然后将其从附近的电路中敲出。您需要一个用于插座的GFCI插座，并且检查员可能也希望在其上看到覆盖物。
Bill
谢谢（你的）信息。是的，如果AHJ要求我这样做，那么添加插座很容易。
最终，重要的是您当地法规官员的意见，而不是我们的意见。
And I think it could be argued either way. One easy thing you could do is put in a GFCI receptacle in the crawlspace ceiling outlet, in case that helps convince the inspector that it's valid to use for that purpose. If you do need to add an outdoor receptacle, it's pretty easy to do with that wiring available close by, and you might find it useful for other purposes as well.
Thanks for the response!
Since you will have a 240 volt disconnect for the heat pump consider getting one with a built in outlet.
https://www.amazon.com/midwest-u065p010-disconnect-pullout-receptacle/dp/b07dssczrg
Walta
Interesting. I didn't know those existed. But I think the NEC says that the required service outlet cannot be on the same circuit as the HVAC equipment.
我为您查找了第210.63条。注意到插座不得连接到设备断开手段的负载侧。如果列出的插座/盒子Walter已在断开连接之前连接了插座，则应满足您的应用程序代码。
还有一个例外，说这些服务渠道不需要为一个和两个家庭住宅提供蒸发冷却器的服务。
Bill
It would depend on the line for the compressor having a neutral, which is often not the case, and it would require either that the circuit for the minisplit be on a breaker no larger than 20 A, or a 15 or 20 A breaker in the box making that a little sub-panel.
Or just use it as a housing for the receptacle and run power from the crawlspace circuit.
Those outlets in the photo are only 15, correct? Can those go on a 20A breaker?
在美国，您可以在20安培电路上放置一个15安培的插座，反之亦然。在加拿大，无论哪种方式，他们都必须匹配。
您可以在20A电路上使用15A或20A插座。不过，您不能在30A或更大的电路上使用类型。原因实际上来自有关电源线最小规格的一些UL规则。
A 20A receptacle would have a "T" shaped neutral slot, so the one in the pic is a 15A receptacle.
I'm not sure on Canadian code disallowing 15A receptacles on 20A circuits, so I'll defer to Charlie on that one. Note that I personally prefer to use only 20A receptacles on 20A circuits since there is near zero cost difference to do that. I also always use spec grade receptacles exclusively, which do cost more than the cheap-o builder grade, but they are vastly superior in plug retention and long-term durability, and they have much better wiring connections too. When I moved into my current home, one of the first things I did was to replace every receptacle in the house with spec grade units. It was maybe a few hundred dollars and a few days of my time, but it was worth it -- and I caught some loose connections and a few other wiring problems while I did it that I was able to correct.
Bill
My guess is the box I linked to will require a second wire on a different breaker to power the outlet.
由于240伏电路也不太可能具有中性电线，即使您拥有中性电线，也不允许将20座插座放在60安培的断路器上，因此可以单独的电路。
Walta
Your box might have an internal fuse. If it was designed for the purpose of easily tapping a service outlet off the feed, then it might have fusing. It would also require a neutral to be run for that outlet, since I doubt there is a transformer in that little box.
我规格这些通常的方法是将常规的双链插座安装在设备侧面（通常在较小的商业建筑物上使用的包装屋顶HVAC单元很常见），然后用常规的120V电路送出相同的插座供应屋顶HVAC单元的导管。您不必为此插座使用专用电路。通常，我通常会指定渠道共享一个将覆盖建筑物区域的单个“服务”电路。Serice Outlet根本没有负载有任何负载是不寻常的，因此毫无意义地浪费了一堆电路来运行多个服务渠道。
Bill