catalinajack
Guru
Who among us knows at what temperature the sender delivers its alarm? I recently replaced the thermostats with units from American Diesel. Brian sent 195-degree thermostats, the temp recommended in the manual that came with our Defever 44. The reason I ask is that I am getting ready to install a Noland Engineering NMEA interface box which will read the voltages from the senders such that a virtual dashboard can be displayed on the MFD. One of the features within the software is the ability to user-set the high temp that sets off an alarm. Somewhere in my dim brain I seem to remember an opinion expressed that the sender on the engine goes off almost too late to prevent damage. I'm thinking to set a lower temp for the alarm resident in the MFD. The warmest temp I have seen on my new Intellitronix digital gauges is 198 degrees, not very much higher than the optimum operating temp specified in the manual. I am aware that in some boats the Lehmans operate at lower temps with lower temp thermostats although I can't imagine why would want to do that.