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#176812 - 04/13/08 08:55 AM
Air curtains
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Oh Well
Junior Member
Registered: 12/12/05
Posts: 3
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Offline
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Is it permissable to group two or more 3 phase air curtains on one feed? In addition to a blower they of course have a heating element. Also being as the only control is a three position rocker switch with an off position is a disconnecting device required? Thanks
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#176814 - 04/13/08 11:47 AM
Re: Air curtains
[Re: Oh Well]
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leland
Member
Registered: 08/20/07
Posts: 396
Loc: Lowell area, Ma. USA
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I would think "why not"? So long as your with in the ckt limitations.
As for the disconnect: So long as it is within site of all three, and meets the load requirements. Why not?
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#176881 - 04/15/08 09:11 AM
Re: Air curtains
[Re: Oh Well]
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Rick Kelly
Member
Registered: 01/11/06
Posts: 60
Loc: Iqaluit, NU, Canada
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In a nut shell, yes and yes.
Rule 28-600(3) permits having more then one air curtain on a single disconnecting means.
Rule 28-602 describes what is permitted as far as a "disconnecting means" is concerned, and no, a three position selector switch is not adequate.
Rule 28-604(5) requires that the disconnecting means be located within 3m of the equipment and in clear sight. I would consider this equipment to be "air conditioning" equipment because of the heating element.
Rick...
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