ENGINEERS REQUEST

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daggett

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DISCONNECT FOR H.V.A.C. IS IT A CODE VIOLATION TO TAP OFF THE LINESIDE OF DISCONNECT TO 3 KVA TRANSFORMER FOR THE CONVIENCE OUTLET. THE UNIT IS 20 AMP 3 PHASE 208. :?: :shock:
 
Not according to the below. I would also suspect that as long as the feed to the 3 KVA transformer is properly protected it would be O.K. but I will have to keep looking for that issue.


2002 NEC 210.63 Heating, Air-Conditioning, and Refrigeration
Equipment Outlet. A 125-volt, single-phase, 15- or 20-
ampere-rated receptacle outlet shall be installed at an accessible
location for the servicing of heating, airconditioning,
and refrigeration equipment. The receptacle
shall be located on the same level and within 7.5 m (25 ft)
of the heating, air-conditioning, and refrigeration equipment.
The receptacle outlet shall not be connected to the
load side of the equipment disconnecting means.
FPN: See 210.8 for ground-fault circuit-interrupter
requirements.

-Ed
 
Please turn off the ALL CAPS feature. It makes the post more difficult to read. It is also considered impolite, as though you were SHOUTING at us.
 
Re: ENGINEERS REQUEST

daggett said:
DISCONNECT FOR H.V.A.C. IS IT A CODE VIOLATION TO TAP OFF THE LINESIDE OF DISCONNECT TO 3 KVA TRANSFORMER FOR THE CONVIENCE OUTLET. THE UNIT IS 20 AMP 3 PHASE 208. :?: :shock:
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I would be concerned as to how the tap is made. Sticking additional conductors under the line lugs is a violation if the lugs are not rated for more than one conductor.
 
Many times HVAC circuits are specifically sized for their application, and it may well be a violation to add the transformer to their circuit.
 
Its late at night and I am a bit dull at this point in time, but wouldn't the proper seperatly derived system gec be harder to accomplish than just running another circuit for the receptacle outlet?
 
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