| Re: Thermasan Question: Chemical Toilet [message #317148 is a reply to message #317141] |
Sun, 07 May 2017 09:54   |
midlf
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
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ree_eric wrote on Sat, 06 May 2017 22:52I have a system installed that I would also like to get working. I have new bearings for the pump. However only one connection at the level sensor is visible, was it a 2 connection with the second to ground? How did this level sensor work? Also missing the speed sensor, could a throttle position sensor work. A thermo sensor would work, anyone know of one that would work? What does the vacuum sensor close contacts for, high or low vacuum? Just about done with the braking and fuel systems now A/C and others...
There are Thermasan flyers and instruction manuals in Bdubs manuals webpages. http://www.bdub.net/manuals/
30mph is needed for the stock system to activate. The vacuum switch closes on low vacuum. ICRC (I can't recall correctly) it is either 12 or 16" of vacuum. These two sensors working together will operate the system when the exhaust temperature is high enough to do the deed on the waste stream. If you are searching the web or the forum for information on this system seach for both "thermasan" and "thermosan". ThermAsan is the correct name but it is often refered to as TherOsan.
When I went to resurrect my Thermasan system the vacuum switch and the speed sensor were both inoperable. Since these two item work together to guess at the exhaust temperature I decided to directly sense the exhaust temperature. I found I could buy a thermocouple temperature controller for about $35. With the coach speed at 30 and cruising down the road I read the temperature in the exhaust system from the controller and then set the turn on setting a bit below that. It works great. Gets rid of about 5 gallons an hour. If we are rolling every day or so there is no need to find a dump station. On longer trips the only tank concern is finding fresh water.
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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