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I have two sets of plans for the cables—one for the 90 and one for the straight connector. They are in pdf and i can’t figure how to post them.Thanks for posting that. I'm slowly learning about these connectors.
For clarity, I assume you're meaning RAK-15/4 and that this is the manual you're using: http://www.electrothermal.com/adminimages/M7064_RAK15_4_iss_3(2).pdfI've got the RAK/4 hooked up to a SINGCARS power supply. The /4 model has a one shot boil and has 3 indicator lights. It boiled the water but my top light is red-which according to the manual indicates a fault condition. I'm giving it 27 volts through the power supply so it's not low voltage. Any ideas out there? These models are made in England by Bibby Scientific. Thanks for any ideas. I noticed the serial number on this is 00004 so maybe it's a prototype? I'm waiting to hear from Cole-Parmer who handle these in North America. Cheers.
Yes,.. with the "one-shot boil" I believe the control board is different. The ebay vendor in Australia sent me a new one. So I will plug that one in and see what transpires... Thanks for your help!For clarity, I assume you're meaning RAK-15/4 and that this is the manual you're using: http://www.electrothermal.com/adminimages/M7064_RAK15_4_iss_3(2).pdf
The full statement of issues there is that a red light is triggered by a boil-dry condition, voltage issue, or that "If fault condition indicator remains on after these actions, or any other lamp sequence is evident that is not covered by tables I, II & III above, then HW&R service/ maintenance is required."
I'd first ensure that you're absolutely positive that the voltage is remaining OK while the heater is in operation and that you do not have a low volume of water in the unit. CHECK. I'd then explore to make sure that the pressure relief valve is working fine, and would further go on to test the thermal control circuit that would normally protect the unit from overheating. CHECK.
This TM will likely give more useful details, including parts and repair processes: http://www.liberatedmanuals.com/TM-10-7310-241-12-and-P.pdf
Edit: I realize that the TM I linked to appears to be mostly about the RAK-15/2 unit and an equivalent. Still, I believe the principals of operation and its assembly are very similar and should have a lot of commonality. Perhaps not close enough to identify exact replacement parts if needed, but close enough to help you figure out how to troubleshoot.
"Dangerous Electrician" here, I need for someone to tell me just what to do to connect my RAK15 to my M35-Duce and a Half. Of course this is a 24 volt system. I have a correct harness (eBay), I just need to know how to hook up to power. I'm dangerous because none of the statements below really make sense to me . . . Ok, well some of them make a little sense, but being a novice I'm afraid to screw it up.Looking to wire up a RAK15 ration heater from scratch. Draws 24vdc 15 amps. 10 gauge directly from the batteries with 20 amp. inline fuse?
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