Home » Public Forums » GMCnet » Fan installation question
| Fan installation question [message #259944] |
Sun, 24 August 2014 17:38  |
Mitch
Messages: 272
Registered: May 2009
Location: Tacoma, Wa
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Well, the front original vent fan has died, and I pulled it out in preparation of installing a new unit.
Only thing is the original has but one wire (blue)- from the switch, and the new has two (white, black).
Normally white is power, black is ground.
The question is: do I simply go to the coach structure for my ground, or do I run a wire somewhere else?
I've checked the manual,and while it mentions r/r of motor or switch, I haven't found a wiring diagram.
Mitch
Tacoma, Wa.
'80 Spitfire
'03 Windstar
'77 Jaguar XJ6-C
X(very)'76 PB 26 "The Beast"
Where it rains, always.
It's wet, No sun, Gray.
Go to Oregon.
[Updated on: Sun, 24 August 2014 17:40] Report message to a moderator |
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| Re: [GMCnet] Fan installation question [message #259949 is a reply to message #259944] |
Sun, 24 August 2014 18:14  |
Daniel DeLuca
Messages: 120
Registered: June 2014
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Mitch,
I just installed two fans. I grounded straight to the frame. It took a few minutes to make sure that I had a solid durable connection but it works great. Just make sure the fan turns the right way before screwing everything up. If you hook the wrong wire to ground your switch will be backwards.
Dan
On Aug 24, 2014, at 6:39 PM, Mitch wrote:
> Well, the front original fan has died, and I pulled it out in preparation of installing a new unit.
> Only thing is the original has but one wire (blue)- from the switch, and the new has two (white, black).
> Normally white is power, black is ground.
> The question is: do I simply go to the coach structure for my ground, or do I run a wire somewhere else?
> I've checked the manual,and while it mentions r/r of motor or switch, I haven't found a wiring diagram.
> --
> Mitch
> Tacoma, Wa.
> '80 Spitfire
> '03 Windstar
> X(very)'76 PB 26 "The Beast"
> Where it rains, always.
>
> It's wet, No sun, Gray.
> Go to Oregon.
> _______________________________________________
> GMCnet mailing list
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| Re: [GMCnet] Fan installation question [message #259950 is a reply to message #259949] |
Sun, 24 August 2014 18:23 |
Mitch
Messages: 272
Registered: May 2009
Location: Tacoma, Wa
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That's what I was looking for. Thanks
Yes. I'll be watching for that.
Mitch
Tacoma, Wa.
'80 Spitfire
'03 Windstar
'77 Jaguar XJ6-C
X(very)'76 PB 26 "The Beast"
Where it rains, always.
It's wet, No sun, Gray.
Go to Oregon.
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| Re: [GMCnet] Fan installation question [message #259957 is a reply to message #259950] |
Sun, 24 August 2014 20:13 |
midlf
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
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Mitch wrote on Sun, 24 August 2014 18:23That's what I was looking for. Thanks
Yes. I'll be watching for that.
Check your instructions carefully for the wire polarity. Also take a close look at the wires for a label, or wire marking that indicates polarity. If the fan has electronic components it could be damaged if it is connected backwards.
On all the RV stuff I've installed lately the white wire was the negative and the one connected to ground.
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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| Re: Fan installation question [message #259961 is a reply to message #259944] |
Sun, 24 August 2014 20:43 |
kerry pinkerton
Messages: 2565
Registered: July 2012
Location: Harvest, Al
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I agree with Steve. White is normally tied to the ground bus and black is HOT. Certainly in AC circuits and I believe that is standard in DC also. It'd be very confusing and dangerous for white to be hot.
Kerry Pinkerton - North Alabama
Had 5 over the years. Currently have a '06 Fleetwood Discovery 39L
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| Re: [GMCnet] Fan installation question [message #259965 is a reply to message #259961] |
Sun, 24 August 2014 21:22 |
k2gkk
Messages: 4452
Registered: November 2009
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Red is usually the hot (+) in the DC circuits, with black historically used for the (-).
With both AC and DC circuits in lots of boats, it is widely suggested nowadays that YELLOW be used for the (-) negative wire in DC wiring to eliminate the possibility (and HAZARD) of confusion.
Boating supply outfits usually carry the RED/YELLOW duplex wiring in various gauges.
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~~ ~ D C "Mac" Macdonald ~ ~~
~ ~ Amateur Radio - K2GKK ~ ~
~ ~ USAF and FAA, Retired ~ ~
~ ~ ~ Oklahoma City, OK ~ ~ ~
~~ ~ ~ "The Money Pit" ~ ~ ~~
~ ~ ~ ~ TZE166V101966 ~ ~ ~ ~
~ ~ ~ '76 ex-Palm Beach ~ ~ ~
~~ k2gkk + hotmail dot com ~~
~ www.gmcmhphotos.com/okclb ~
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
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*--OO--[]---O-*
> Date: Sun, 24 Aug 2014 19:44:57 -0600
> To: gmclist@temp.gmcnet.org
> From: Pinkertonk@MCHSI.com
> Subject: Re: [GMCnet] Fan installation question
>
> I agree with Steve. White is normally tied to the ground bus and black is HOT. Certainly in AC circuits and I believe that is standard in DC also.
> It'd be very confusing and dangerous for white to be hot.
> --
> Kerry Pinkerton
>
> North Alabama, near Huntsville,
>
> 77 Eleganza II, "The Lady", 403CI, Manny Brakes, 1 ton, tranny also a 76 Eleganza to be re-bodied as an Art Deco car hauler
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| Re: [GMCnet] Fan installation question [message #259973 is a reply to message #259965] |
Sun, 24 August 2014 22:32 |
Mitch
Messages: 272
Registered: May 2009
Location: Tacoma, Wa
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After these last few posts I'm going in there with an Ohmeter. One minute checkin' is worth one hour fixin'.k2gkk wrote on Sun, 24 August 2014 19:22Red is usually the hot (+) in the DC circuits, with black historically used for the (-).
With both AC and DC circuits in lots of boats, it is widely suggested nowadays that YELLOW be used for the (-) negative wire in DC wiring to eliminate the possibility (and HAZARD) of confusion.
Boating supply outfits usually carry the RED/YELLOW duplex wiring in various gauges.
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~~ ~ D C "Mac" Macdonald ~ ~~
~ ~ Amateur Radio - K2GKK ~ ~
~ ~ USAF and FAA, Retired ~ ~
~ ~ ~ Oklahoma City, OK ~ ~ ~
~~ ~ ~ "The Money Pit" ~ ~ ~~
~ ~ ~ ~ TZE166V101966 ~ ~ ~ ~
~ ~ ~ '76 ex-Palm Beach ~ ~ ~
~~ k2gkk + hotmail dot com ~~
~ www.gmcmhphotos.com/okclb ~
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
______________
*[ ]~~~[][ ][|\
*--OO--[]---O-*
> Date: Sun, 24 Aug 2014 19:44:57 -0600
> To: gmclist@temp.gmcnet.org
> From: Pinkertonk@MCHSI.com
> Subject: Re: [GMCnet] Fan installation question
>
> I agree with Steve. White is normally tied to the ground bus and black is HOT. Certainly in AC circuits and I believe that is standard in DC also.
> It'd be very confusing and dangerous for white to be hot.
> --
> Kerry Pinkerton
>
> North Alabama, near Huntsville,
>
> 77 Eleganza II, "The Lady", 403CI, Manny Brakes, 1 ton, tranny also a 76 Eleganza to be re-bodied as an Art Deco car hauler
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Mitch
Tacoma, Wa.
'80 Spitfire
'03 Windstar
'77 Jaguar XJ6-C
X(very)'76 PB 26 "The Beast"
Where it rains, always.
It's wet, No sun, Gray.
Go to Oregon.
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| Re: [GMCnet] Fan installation question [message #259984 is a reply to message #259973] |
Mon, 25 August 2014 02:12 |
midlf
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
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Senior Member |
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Mitch wrote on Sun, 24 August 2014 22:32After these last few posts I'm going in there with an Ohmeter. One minute checkin' is worth one hour fixin'.
Very wise man!
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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| Re: [GMCnet] Fan installation question [message #260022 is a reply to message #260005] |
Mon, 25 August 2014 11:39 |
k2gkk
Messages: 4452
Registered: November 2009
Karma: -8
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As Kerry confirmed, we never know what a prior owner or even the manufacturer has done. It's not much of a problem if only DC or only AC circuits are involved. It gets more complicated and definitely more dangerous when both AC and DC circuits are in the same facility.
Add Chinese or other Asian manufacturers into the mix and you simply cannot assume anything as to what color coding is used in a device.
Just be aware that in an RV or boat, danger can be lurking. That is why I like to use RED-for-HOT (+) and YELLOW-for-GROUND for DC (-) where I feel it is appropriate. Unfortunately, so far, "zip" cord in that color combination does not seem to be available.
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~~ ~ D C "Mac" Macdonald ~ ~~
~ ~ Amateur Radio - K2GKK ~ ~
~ ~ USAF and FAA, Retired ~ ~
~ ~ ~ Oklahoma City, OK ~ ~ ~
~~ ~ ~ "The Money Pit" ~ ~ ~~
~ ~ ~ ~ TZE166V101966 ~ ~ ~ ~
~ ~ ~ '76 ex-Palm Beach ~ ~ ~
~~ k2gkk + hotmail dot com ~~
~ www.gmcmhphotos.com/okclb ~
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
______________
*[ ]~~~[][ ][|\
*--OO--[]---O-*
> Date: Mon, 25 Aug 2014 08:50:32 -0600
> To: gmclist@temp.gmcnet.org
> From: Pinkertonk@MCHSI.com
> Subject: Re: [GMCnet] Fan installation question
>
> Kerry Pinkerton wrote on Sun, 24 August 2014 20:43
>> I agree with Steve. White is normally tied to the ground bus and black is HOT. Certainly in AC circuits and I believe that is standard in DC
>> also. It'd be very confusing and dangerous for white to be hot.
>
>
> Damn, I'll full of poop on this comment. 50% dead wrong. I should know not to post after 10 pm. Mac is 100% correct on DC Red is normally hot and
> black ground. :blush: :blush: :blush:
>
> That said, you never know what the PO did, check out the voltages and grounds with a meter.
>
> I apologize for the misinformation. Damn :blush:
> --
> Kerry Pinkerton
>
> North Alabama, near Huntsville,
>
> 77 Eleganza II, "The Lady", 403CI, Manny Brakes, 1 ton, tranny also a 76 Eleganza to be re-bodied as an Art Deco car hauler
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| Re: [GMCnet] Fan installation question [message #260045 is a reply to message #260022] |
Mon, 25 August 2014 15:02 |
Mitch
Messages: 272
Registered: May 2009
Location: Tacoma, Wa
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Handy-lil circuit tester confirms black wire is hot.
On a side note; there's always that one moment - just before making the first cut - no matter how many times I measure ...
But the new unit fits just right.
I still have to make some cuts on the liner Rob Allen installed, but that's easier on my nerves than cutting on the aluminum roof.
So far it's been a good day.
Mitch
Tacoma, Wa.
'80 Spitfire
'03 Windstar
'77 Jaguar XJ6-C
X(very)'76 PB 26 "The Beast"
Where it rains, always.
It's wet, No sun, Gray.
Go to Oregon.
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midlf wrote on Mon, 25 August 2014 00:12