Storage Tank Heater, Thermostat

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Anonymous Poster #1	Storage Tank Heater, Thermostat 08/27/2015 3:24 AM
	I have a storage tank heater of 10 KW/415V. Recently, the thermostat of the heater started malfunctioning and so I opened to check it. The thermostat has capillary bulbs and has two set points. 90 degrees is a pre set point. It is also a 3 phase thermostat. As far as i know, with more than 10 Amps current, thermostats needs to be connected with a contactor but this heater doesnot seem to have any. Please suggest me a suitable replacement and letme know where in India can i find the same.( Please note, I donot know the name of the company who supplied the heater but the thermostat is from Cotherm).
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PeeeWee Associate Join Date: Aug 2015 Posts: 25	#1 Re: Storage tank heater, thermostat 08/27/2015 3:30 AM
	Not known 3 phase thermstet. Contact provider of thermal sensor products. see above choice. then click Productz and Zuppliers PeeeWee __________________ "peitschen deinen arsch" -that's what she said.
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Tornado Guru Join Date: May 2009 Location: Richland, WA, USA Posts: 21017 Good Answers: 795	#2 Re: Storage tank heater, thermostat 08/27/2015 4:29 AM
	Most water heater thermostats I know of do not involve a contactor; the ampere rating of the thermostat is already sufficient. This appears to be a 3-phase thermostat--does it have a current rating stamped on it? It might be "Contherm" rather than "Cotherm". __________________ In vino veritas; in cervisia carmen; in aqua E. coli.
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Anonymous Poster #1	#3 In reply to #2 Re: Storage tank heater, thermostat 08/27/2015 5:13 AM
	The rating says 16 A- 230 V.
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Tornado Guru Join Date: May 2009 Location: Richland, WA, USA Posts: 21017 Good Answers: 795	#4 In reply to #3 Re: Storage tank heater, thermostat 08/27/2015 7:12 AM
	Then I presume the elements are wired in star, which gives 230 volts on each phase to neutral. I.e., your setup looks correct. I don't know of local sources for a replacement thermostat. __________________ In vino veritas; in cervisia carmen; in aqua E. coli.
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ozzb Guru Join Date: Mar 2007 Location: Rosedale, Maryland USA Posts: 5197 Good Answers: 266	#5 Re: Storage Tank Heater, Thermostat 08/27/2015 10:13 AM
	http://www.cotherm.com/ That cream colored box is the contactor. Looks like the temperature control from which they call a dishwater heater. I stripped mine out and used a digital temperature control ,a solid state contactor for control and a mechanical contactor for on/off. __________________ Life is not a journey to the grave with the intention of arriving in a pretty, pristine body but rather to come sliding in sideways, all used up and exclaiming, "Wow, what a ride!"
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PWSlack Guru Join Date: Jan 2007 Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on. Posts: 32175 Good Answers: 839	#6 Re: Storage Tank Heater, Thermostat 08/27/2015 1:40 PM
	Google can find suppliers of replacement 3-phase thermostats anywhere in the universe, not just India. Highly recommended. __________________ "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
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Andy Germany Guru Join Date: Sep 2006 Location: Near Frankfurt am Main, Germany. 50.390866N, 8.884827E Posts: 17996 Good Answers: 200	#7 Re: Storage Tank Heater, Thermostat 08/28/2015 4:01 AM
	Why do you post anonymously? I am therefore not interested in helping. Bye. __________________ "What others say about you reveals more about them, than it does you." Anon.
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Andy Germany (1); Anonymous Poster (1); ozzb (1); PeeeWee (1); PWSlack (1); Tornado (2)

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