Bus Conversions dot Com Bulletin Board
October 24, 2014, 09:29:54 PM *
Welcome, Guest. Please login or register.

Login with username, password and session length
News: If you had an Online Subscription: It will not be stolen by your mailman or your neighbor who also may be into buses.
   Home   Help Forum Rules Search Calendar Login Register BCM Home Page Contact BCM  
Pages: [1]   Go Down
  Print  
Author Topic: Will this Auqastat work on DC?  (Read 743 times)
belfert
Hero Member
*****
Offline Offline

Posts: 5448




Ignore
« on: July 05, 2009, 02:30:03 PM »

I am looking at http://www.bellgossett.com/ProductPages/Parts-Aquastat.asp for controlling the temp of my water heater.

Will this work with 12 or 24 volt DC?  It appears to be just a switch that turns on/off when exposed to heat.  Is there another option?
Logged

Brian Elfert - 1995 Dina Viaggio 1000 Series 60/B500 - 75% done but usable - Minneapolis, MN
Sean
Geek.
Hero Member
*****
Offline Offline

Posts: 2553


'85 Neoplan Spaceliner "Odyssey"


WWW

Ignore
« Reply #1 on: July 05, 2009, 03:21:39 PM »

Yes, it will work -- but why spend the bucks for this when a simple thermostatic switch with the proper value will work just fine?  You can find them at Grainger, Allied, Newark, and probably Del City.

-Sean
http://OurOdyssey.BlogSpot.com
Logged

Full-timing in a 1985 Neoplan Spaceliner since 2004.
Our blog: http://OurOdyssey.BlogSpot.com
Nick Badame Refrig/ACC
1989, MCI 102C3, 8V92T, HT740, 06' conversion FMCA# F-27317-S "Wife- 1969 Italian/German Style"
Global Moderator
Hero Member
*****
Offline Offline

Posts: 4874


Nick & Michelle Badame


WWW
« Reply #2 on: July 05, 2009, 03:45:06 PM »

Hi Brian,

Sean is correct, it will work.

Another option is an adjustable aquastat. If you find your temp settings to be incorrect, you would have the option of changing them.

This stat below is either normally open, or normally closed contacts. Also adjustable.. and about $40 bucks.

Good Luck
Nick-
Logged

Whatever it takes!-GITIT DONE! 
Commercial Refrigeration- Ice machines- Heating & Air/ Atlantic Custom Coach Inc.
Master Mason- Cannon Lodge #104
https://www.facebook.com/atlanticcustomcoach
www.atlanticcustomcoach.com
belfert
Hero Member
*****
Offline Offline

Posts: 5448




Ignore
« Reply #3 on: July 05, 2009, 04:17:18 PM »

The aquastat I mentioned isn't all that expensive and it does exactly what I want.  There are also at least two other manufacturers making the same thing that might be a bit less money.

What I am looking to do is turn on or off my Proheat heater based on if the water from my water heater is hot or not.  I would also need a mixing valve or something to sure the water in the water heater doesn't get too hot if the heater runs a long time for space heating needs.

Maybe I am overcomplicating things.  The Proheat will turn itself off if the coolant level coming back to the heater is too warm.
Logged

Brian Elfert - 1995 Dina Viaggio 1000 Series 60/B500 - 75% done but usable - Minneapolis, MN
Sean
Geek.
Hero Member
*****
Offline Offline

Posts: 2553


'85 Neoplan Spaceliner "Odyssey"


WWW

Ignore
« Reply #4 on: July 05, 2009, 09:27:50 PM »

The aquastat I mentioned isn't all that expensive and it does exactly what I want.  There are also at least two other manufacturers making the same thing that might be a bit less money.


OK -- I don't know what they are asking for that part.  Snap-disc single-value temperature control switches are about ten bucks.

Quote
What I am looking to do is turn on or off my Proheat heater based on if the water from my water heater is hot or not.  I would also need a mixing valve or something to sure the water in the water heater doesn't get too hot if the heater runs a long time for space heating needs.

Maybe I am overcomplicating things.  The Proheat will turn itself off if the coolant level coming back to the heater is too warm.


Your ProHeat will cycle on and off based on the hydronic fluid temperature -- the hottest your domestic water will get is that same temperature, but more realistically, there will be enough loss in the exchange and from the tank that the water will run 10-20 lower.

FWIW, our Webasto cycles off at about 165 (and that's probably how hot the hydronic fluid gets from main engine heat, too, after going through the exchanger).  The thermostat on the electric element of our water heater (one of those same $10 snap-disc items) probably cuts out around 145, yet the water is always hotter if we heat it electrically rather than hydronically.

I would just not worry about it.  OTOH, if you have or intend to have small children aboard, you might install an anti-scald valve on your shower.  We don't have one and have never had a problem.  There are also "tempering valves" available that go on the output of the water heater, if you are still concerned about it.

YMMV.

-Sean
http://OurOdyssey.BlogSpot.com
Logged

Full-timing in a 1985 Neoplan Spaceliner since 2004.
Our blog: http://OurOdyssey.BlogSpot.com
Pages: [1]   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.18 | SMF © 2013, Simple Machines Valid XHTML 1.0! Valid CSS!