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Joined: Mar 2003
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Inspector says that article 680.21(4) only applies to pool motors. If a pool heater is connected to this circuit it can not be fed with NM cable within the interior of a one fanily dwelling, it would have to be in conduit. Why would a heater make a difference?
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Joined: Jul 2004
Posts: 10,004 Likes: 36
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The inspector is right. 680.21 does just apply to "motors". If you really want to argue with him, ask him to point out the section that specifically describes the wiring method to a "pool" heater.
The pipe rules are in 680.21 "motors", 680.23 "underwater luminaires" and 680.27(A)(2)"underwater speakers".
Heaters show in in 680.26 "bonding" but not in the branch circuit wiring articles as far as I can tell.
Greg Fretwell
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Joined: Jan 2004
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Greg- Just a point of interest, the heater for a pool if located more that 5' from the pool is not required to be bonded unless it's an electric heater.
George Little
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Joined: Jul 2004
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If you had a pure gas heater or a solar heater I agree but most gas heaters have electrical loads and I think that makes them "electrical equipment".
680.26(B)(4) Electrical Equipment. Metal parts of electrical equipment associated with the pool water circulating system, ... shall be bonded
Greg Fretwell
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Joined: May 2005
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The gas pool heaters I've seen have no electrical connection, just as a home gas water heater has no connection (unless there's a vent fan).
Dave
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Joined: Jul 2004
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Mine (Sta-Rite Max E Therm) has an electrical igniter, a blower and an electrical gas valve that is interlockled with the pool motor along with an interface to the pool control computer, if installed.
The instructions say it should be bonded.
A lug is provided for the purpose.
Greg Fretwell
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Joined: Jan 2004
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Greg- 90% of the guys around here bond the heaters too, but if they don't I don't say anything unles they have electricity associated with them.
Question? Is a power pile system considered to be electric? I think I've become the inspector I used to dread when I was a contractor.
George Little
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Joined: Jun 2004
Posts: 24
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George
It speaks well of you that you're remembering your days of contracting and i'm sure that you're able to focus on true safety issues rather than the letter of the book and its most stringent interpretation.
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Joined: Jul 2004
Posts: 10,004 Likes: 36
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Greg Fretwell
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Joined: Jan 2004
Posts: 1,507
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Greg a Power Pile system is a system that involves a gas valve and a millivolt operated pilot light safety. Hold the spring loaded button down and allow gas to flow to the pilot light and once the bimetal sensor probe (in the flame) is heated up it generates enough voltage (millivolts) to keep the pilot light solenoid energized and thus the main gas valve and associated thermostat will operate. Standing pilot goes out-and this would prevent the main valve from operating and no gas escapes or creates any hazard. Around these parts, this is refered to as a Power Pile system. Might be a slang expression.
I would not see this as an electric pool heater needing bonding but they bond it anyway.
George Little
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Posts: 356
Joined: August 2006
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