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31-05-2009, 04:50 PM #1
DHW heating system - how does it work?
http://www.ctcvarme.se/
CTC Aquaheat Domestic hot water heating system
CTC AquaHeat is a high efficient DHW heat exchanger unit in connection with heating boilers and hot water storage tanks.
Extremly small dimensions, instant, legionella free sanitary hotwater production are the characteristics of the CTC Aquaheat.
The CTC Aquaheat is available in two sizes - CTC Aquaheat 25 and 50.
Can anyone describe how this system works & what are the component parts?
Engineering Specialist - Cuprobraze, Nocolok, CD Technology
Rarefied Technologies ( SE Asia )
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31-05-2009, 05:36 PM #2
Re: DHW heating system - how does it work?
Hello DesA.
I looked through some sites, only thing comes to my mind it might be electric boilers with very powerful heaters and big flow rate - to quickly obtain hot tap water (and somehow combined with the house (gas) heating system).
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31-05-2009, 07:38 PM #3
Re: DHW heating system - how does it work?
No, no el heaters, of course. Some boiler's water (very hot), most possibly, let pass through the AquaHeat's exchanger for instantaneous heating up of tap water.
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31-05-2009, 08:02 PM #4
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Re: DHW heating system - how does it work?
Nothing special, by description and pictures, Simple BPHE with pump and accessories.
It is addition to powerful boilers for instantaneous heating of DHW (and in that way avoiding legionela formation).
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31-05-2009, 11:10 PM #5
Re: DHW heating system - how does it work?
As Nike says, basic system but nothing to do with refrigeration at all; all heat input from assorted boilers/heating devices.
Brian - Newton Abbot, Devon, UK
Retired March 2015
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01-06-2009, 12:06 AM #6
Re: DHW heating system - how does it work?
Thanks everyone.
I was trying to make sense of the device & had originally wondered if it was some form of de-superheater system. With that perspective in mind, the piping didn't seem to make sense - other than the water-side. The valve there seems to be a coil-operated on/off device. The other line, with the white pipe interconnect had me guessing. The plate HX is a given.
Not a refrigeration-related device. Ok, then. Sorry about that.Engineering Specialist - Cuprobraze, Nocolok, CD Technology
Rarefied Technologies ( SE Asia )
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01-06-2009, 11:21 PM #7
Re: DHW heating system - how does it work?
Tricky trying to understand details from a single picture isn't it?
The black device I think is maybe a flow sensor (pressure or movement) which senses when there is a demand for hot water and will then switch the pump on to circulate the primary heating water.
The pump pipework has me guessing though, perhaps the white tube is a small bypass to allow primary water circulation. The brass gizmo on the right is perhaps a valve which shuts the white tube when the pump runs ????Brian - Newton Abbot, Devon, UK
Retired March 2015
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