robbio c Posted September 12, 2020 Report Share Posted September 12, 2020 Hi all I fired up my eberpacher hydronic yesterday for the first time and delighted all working well ,excellent little unit but my question is ,is it safe to run these units when engine is running regarding the voltage given that the alternator will be putting out 14+ voltage ?can they tolerate that voltage Link to comment Share on other sites More sharing options...
Alan de Enfield Posted September 12, 2020 Report Share Posted September 12, 2020 13 minutes ago, robbio c said: Hi all I fired up my eberpacher hydronic yesterday for the first time and delighted all working well ,excellent little unit but my question is ,is it safe to run these units when engine is running regarding the voltage given that the alternator will be putting out 14+ voltage ?can they tolerate that voltage In the manual for mine it states 10v - 20v Link to comment Share on other sites More sharing options...
robbio c Posted September 12, 2020 Author Report Share Posted September 12, 2020 Hi Alan thanks for that I'll download manual today and double check cheers Link to comment Share on other sites More sharing options...
TheBiscuits Posted September 12, 2020 Report Share Posted September 12, 2020 7 minutes ago, Alan de Enfield said: In the manual for mine it states 10v - 20v No it states 2 ranges : 10v to 14v for the 12v version or 20v to 28v for the 24v version. It's laid out badly though. 23 minutes ago, robbio c said: is it safe to run these units when engine is running regarding the voltage given that the alternator will be putting out 14+ voltage ?can they tolerate that voltage Yes, they are designed as vehicle heaters, so the normal voltage from your alternator is fine. If your alternator is going much above 14.4v get it fixed! Note Alan's manual also states the controller will shut off the heater if the voltage is too high for it, so if it's running it's happy. 1 Link to comment Share on other sites More sharing options...
Alan de Enfield Posted September 12, 2020 Report Share Posted September 12, 2020 31 minutes ago, TheBiscuits said: No it states 2 ranges : 10v to 14v for the 12v version or 20v to 28v for the 24v version. Oops - correct, just goes to show how important attention to detail is and 'don't post without reading' ! Link to comment Share on other sites More sharing options...
robbio c Posted September 12, 2020 Author Report Share Posted September 12, 2020 Thanks guys for the info alternator is putting out normal voltage so should be fine? Link to comment Share on other sites More sharing options...
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