ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
VDE 0100 to introduce AFCIs
by sparky. 01/20/18 05:09 PM
MRI LED lights dimmer control replacement - wow!
by Potseal. 01/19/18 08:52 PM
Video: Inventor of the GFCI self-testing shocks
by Bill Addiss. 01/17/18 11:11 PM
FPE in Germany
by HotLine1. 01/17/18 07:07 PM
Fujifilm Recalls Power Adapter Wall Plugs
by Admin. 01/16/18 07:04 PM
New in the Gallery:
Housebilding DIY wiring
SE cable question
Who's Online Now
0 registered members (), 16 guests, and 14 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
HVAC -or is it HACK? #111530
12/27/06 01:05 PM
12/27/06 01:05 PM
renosteinke  Offline OP
Cat Servant
Member
Joined: Jan 2005
Posts: 5,316
Blue Collar Country
The following pic shows the power and control of the HVAC in a commercial establishment.

The cord & plug supplies a flying tangle of wire nuts; these supply a furnace, swamp cooler, and line voltage thermostat.


[Linked Image]

2017 / 2014 NEC & Related Books and Study Guides
Re: HVAC -or is it HACK? #111531
12/27/06 08:38 PM
12/27/06 08:38 PM
HotLine1  Offline

Member
Joined: Apr 2002
Posts: 6,918
Brick, NJ USA
This northern city guy needs to know what a 'swamp cooler' is??

Even not knowing, it can't be wired even close to right!
John


John
Re: HVAC -or is it HACK? #111532
12/27/06 08:51 PM
12/27/06 08:51 PM
renosteinke  Offline OP
Cat Servant
Member
Joined: Jan 2005
Posts: 5,316
Blue Collar Country
A swamp cooler is used in dry areas for cooling. It has three main elements: a fan, a pump, and a screen. The fan blows dry air through the screen, while the pump keeps the screen wet. The water, as it evaporates, cools the air quite a bit.

How much it can cool the air depends entirely upon the relative humidity of the air. In that respect, a swamp cooler installation is different from air conditioning ... you need to have a constant flow of fresh air through the house. No closed windows here!

A swamp cooler typically will only draw a few amps.

Re: HVAC -or is it HACK? #111533
12/29/06 06:40 AM
12/29/06 06:40 AM
electure  Offline

Member
Joined: Dec 2000
Posts: 4,264
Fullerton, CA USA

Re: HVAC -or is it HACK? #111534
12/29/06 08:30 AM
12/29/06 08:30 AM
I
ITO  Offline
Member
Joined: Nov 2006
Posts: 348
Texas
Swamp coolers work great in West Texas where it is dry.

They dont work at all in Central Texas.

Its all about the Humidity,


101° Rx = + /_\
Re: HVAC -or is it HACK? #111535
12/29/06 09:11 AM
12/29/06 09:11 AM
J
johno12345  Offline
Member
Joined: Sep 2005
Posts: 96
United Kingdom
We had an evaporative cooler in an office at work once. They had all the doors and windows open. It set the fire alarm off. When the Fire Brigade turned up, we went into the room and it was somewhat like a sauna, everything was wet, the ceiling, the fire detector. The Fire Brigade were quite bemused and slightly miffed. It lasted a few months in a larger office before it started producing an awful stench so it went in the bin.

I think it is too humid for them over here.

We got inverter A/C and I dont know how we ever coped before.


I took my time, I hurried up, The choice was mine, I didn't think enough
Re: HVAC -or is it HACK? #111536
12/29/06 08:20 PM
12/29/06 08:20 PM
HotLine1  Offline

Member
Joined: Apr 2002
Posts: 6,918
Brick, NJ USA
Thank you, but that's not a 'Jersey thing'. We have to remove humidity; not add it.

Happy & Safe New Year to all.

John


John
Re: HVAC -or is it HACK? #111537
12/30/06 11:13 AM
12/30/06 11:13 AM
Lostazhell  Offline
Member
Joined: Feb 2004
Posts: 1,431
Bakersfield, CA (Originally Or...
My father-in-laws prehistoric house has one of these swamp things stuck into the side of it, with the squirrel cage blowing straight into the living room... He had it just plugged into an extension cord, which plugged into an old floor outlet, until I showed him the extension cord was melting [Linked Image] I hardwired a circuit in and fed a swamp control with 12/4 MC into the living room.

Amusingly, one day I went by there and turned it on to cool the house down, and this thing started blowing bubbles into the living room [Linked Image] [Linked Image] It did that for about a month and hasn't ever since

Re: HVAC -or is it HACK? #111538
12/31/06 09:52 AM
12/31/06 09:52 AM
Trumpy  Offline

Member
Joined: Jul 2002
Posts: 8,231
SI,New Zealand
Swamp Cooler is another name for an Evaporative cooler.
I remember working on them as an EC, you had to have a mask on while draining the water out.
Legionnaires disease is rife in any Evap cooler that is not well maintained, not to mention mosquitos laying eggs in them.
There was a local McDonalds was shut down because of a problem with an Evap unit here, water was like sludge when we cleaned it out.
It was in the Kiddie castle thingee.
One other reason why I won't eat there. [Linked Image]


Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
Scott35
Scott35
Anaheim, CA. USA
Posts: 2,708
Joined: October 2000
Show All Member Profiles 
Top Posters(30 Days)
Admin 20
sparky 16
Potseal 15
Popular Topics(Views)
243,583 Are you busy
180,379 Re: Forum
170,856 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.018s Queries: 14 (0.003s) Memory: 1.0039 MB (Peak: 1.1734 MB) Zlib enabled. Server Time: 2018-01-21 20:15:48 UTC