Water Heater

Posted by William A. Cormack (wacormack@…>)

The water heater on my F36 (1986) didn’t work so I checked out the wiring before going looking for a new element. Found the following:

white wire connected to the Black from the panel
Black connected to white from the panel
At the panel both black and white were connected to the Hot (black) side of two breakers, one marked spare and the other marked water heater
At the heater the green from the heater was neatly coiled and hanging in mid air while the green from the panel was cut off shorter than the white and black
Now the question - is connecting the green a no no in marine application? It looks quite deliberate.

The problems on 1 - 3 above are easily fixed and probably something a prior owner did but the green looks like the factory did it. The green wires were not even stripped for connection.

Thanks

Bill
_________________________________________________William A. Cormack, CPAPrincipal and Chief Financial OfficerWhelan Associates, LLC, a Corporate Real Estate Service Firm100 Faunce Corner Executive Center, Suite 150North Dartmouth, MA 02747Voice: 508-984-4100, Fax: 508-984-4101, Cell 508-254-5828MailTo:wacormack@…

Posted by macks011 (macks04@…>)

Connect the GREEN wire to the AC GROUND. Continuity and ground must
be respected for the Shore Power system. DO NOT comingle the AC
GROUND and the DC GROUND. Also, you need to straighten out the
connection to your panel. From you description, I can’t visualize
the connection, but It doesn’t sound right. Black is your hot leg.
The breaker Interrupts the hot leg. Hot leg to breaker, hot lead
from breaker to heater. White is your neutral leg. White from heater
back to neutal connection on panel. Do not confuse AC and DC.






— In freedomyachts2003@yahoogroups.com, “William A. Cormack”
<wacormack@w…> wrote:

The water heater on my F36 (1986) didn’t work so I checked out the
wiring before going looking for a new element. Found the following:
1… white wire connected to the Black from the panel
2… Black connected to white from the panel
3… At the panel both black and white were connected to the Hot
(black) side of two breakers, one marked spare and the other marked
water heater
4… At the heater the green from the heater was neatly coiled
and hanging in mid air while the green from the panel was cut off
shorter than the white and black
Now the question - is connecting the green a no no in marine
application? It looks quite deliberate.

The problems on 1 - 3 above are easily fixed and probably
something a prior owner did but the green looks like the factory did
it. The green wires were not even stripped for connection.

Thanks

Bill


William A. Cormack, CPA
Principal and Chief Financial Officer
Whelan Associates, LLC, a Corporate Real Estate Service Firm
100 Faunce Corner Executive Center, Suite 150
North Dartmouth, MA 02747
Voice: 508-984-4100, Fax: 508-984-4101, Cell 508-254-5828
MailTo:wacormack@w

Posted by Paul McFadden (pwhitmac@…>)




In AC applications, it’s extremely important to adhere to the code, ie; ABYC. you need to know that in AC, black is “hot”, and is switched/breakered, and/or fused, while the white is the common. White is rarely switched, except in pretty esoteric circumstances. The green wire is always used in Marine applications, as it’s improper use can be a major source of electrolysis. Some water heater companies require an isolator on the green wire to satisfy warranty requirements. Unless you have a genset, (a whole other bag of worms) your basic goal is to bring the AC on board and off without compromising the current flow. Black if hot, white is common, and green is basically case and/or chassis ground. You don’t want to be terminating any AC grounds on your boat. do it via the green wire thru the shore plug. One thing to remember, AC is really the opposite of DC. In AC black is hot, while in DC, it’s usually red. In AC,common or Edison
ground, as it’s sometimes called, is always (almost) white. In DC, it’s usually black (look @ your car battery). Generally in DC wiring there is no “green” wire. Obviously a bare wire is used to tie things together, like thru-hulls, and the like.
Hope this is of some minor help, but I’m certain there are some electrical experts out there that can clean this up a bit.
Good luck, electrical stuff on a boat can be a bear!..PWM





“William A. Cormack” <wacormack@…> wrote:
The water heater on my F36 (1986) didn’t work so I checked out the wiring before going looking for a new element. Found the following:

white wire connected to the Black from the panel
Black connected to white from the panel
At the panel both black and white were connected to the Hot (black) side of two breakers, one marked spare and the other marked water heater
At the heater the green from the heater was neatly coiled and hanging in mid air while the green from the panel was cut off shorter than the white and black
Now the question - is connecting the green a no no in marine application? It looks quite deliberate.

The problems on 1 - 3 above are easily fixed and probably something a prior owner did but the green looks like the factory did it. The green wires were not even stripped for connection.

Thanks

Bill
_________________________________________________William A. Cormack, CPAPrincipal and Chief Financial OfficerWhelan Associates, LLC, a Corporate Real Estate Service Firm100 Faunce Corner Executive Center, Suite 150North Dartmouth, MA 02747Voice: 508-984-4100, Fax: 508-984-4101, Cell 508-254-5828MailTo:wacormack@…
Do you Yahoo!? Yahoo! Mail - Helps protect you from nasty viruses.

Posted by lance_ryley (lance_ryley@…>)

In order to differentiate between the AC hot and DC ground, many wire
manufacturers are now using Yellow for the DC ground to eliminate any
confusion. I think West Marine markets this as “Safety Wire,” and it
is also available in battery cable weights.

As I’ve been replacing/upgrading/adding to my DC systems, I’ve been
replacing the black grounds with yellow.

Lance
— In freedomyachts2003@yahoogroups.com, Paul McFadden
<pwhitmac@y…> wrote:

In AC applications, it’s extremely important to adhere to the
code, ie; ABYC. you need to know that in AC, black is “hot”, and is
switched/breakered, and/or fused, while the white is the common.
White is rarely switched, except in pretty esoteric circumstances.
The green wire is always used in Marine applications, as it’s
improper use can be a major source of electrolysis. Some water heater
companies require an isolator on the green wire to satisfy warranty
requirements. Unless you have a genset, (a whole other bag of worms)
your basic goal is to bring the AC on board and off without
compromising the current flow. Black if hot, white is common, and
green is basically case and/or chassis ground. You don’t want to be
terminating any AC grounds on your boat. do it via the green wire
thru the shore plug. One thing to remember, AC is really the opposite
of DC. In AC black is hot, while in DC, it’s usually red. In
AC,common or Edison ground, as it’s sometimes called, is always
(almost)
white. In DC, it’s usually black (look @ your car battery).
Generally in DC wiring there is no “green” wire. Obviously a bare
wire is used to tie things together, like thru-hulls, and the like.

Hope this is of some minor help, but I’m certain there are some
electrical experts out there that can clean this up a bit.

Good luck, electrical stuff on a boat can be a bear!..PWM

“William A. Cormack” <wacormack@w…> wrote: The water heater on my
F36 (1986) didn’t work so I checked out the wiring before going
looking for a new element. Found the following:

white wire connected to the Black from the panel
Black connected to white from the panel
At the panel both black and white were connected to the Hot
(black) side of two breakers, one marked spare and the other marked
water heater
At the heater the green from the heater was neatly coiled and
hanging in mid air while the green from the panel was cut off shorter
than the white and black
Now the question - is connecting the green a no no in marine
application? It looks quite deliberate.

The problems on 1 - 3 above are easily fixed and probably something
a prior owner did but the green looks like the factory did it. The
green wires were not even stripped for connection.

Thanks

Bill


William A. Cormack, CPA
Principal and Chief Financial Officer
Whelan Associates, LLC, a Corporate Real Estate Service Firm
100 Faunce Corner Executive Center, Suite 150
North Dartmouth, MA 02747
Voice: 508-984-4100, Fax: 508-984-4101, Cell 508-254-5828
MailTo:wacormack@w


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