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eurocooling
16-07-2014, 08:53 PM
Hi can any body help we just quoting a job of high temperature of 80 degrees for only rads the kW is 16 there not a lot of room on the job do we have to have a buffer tank ? We have 12 refrigeration metal panels and a heat pump

jdunc2301
17-07-2014, 10:49 AM
You need to go back to the manufacturer of the equipment to get this info.

We quote 20l p/kW

MikeHolm
17-07-2014, 12:00 PM
You need a different system. 80C and a heat pump (refrig panels or not) don't mix well. Boiler time or drop the load temp, sorry.

nike123
17-07-2014, 08:10 PM
What are panels make and model? Heat pump make and model?

Gibbo
18-07-2014, 06:17 PM
Most air to water heat pumps are only designed with a maximum leaving water of 55c possibly up to 60C.

eurocooling
18-07-2014, 08:48 PM
Make is the energy panel from Spain

MikeHolm
20-07-2014, 02:10 AM
Nowhere in the literature does it say 80C is achievable. I wouldn't put my name on that system, and I do a LOT of solar. Be careful.

Worcester
27-07-2014, 11:54 PM
You're talking about the "thermodynamic" panels which are basically a sun heating flat panel hex for a heat pump.

12 panels is a large amount, so I presume that you are looking to use them for space heating also in which case you need a stratified thermal store, not a buffer tank, and yes you have to have one else you'll waste all the heat from the "thermodynamic" panels (the ones that freeze up on the surface in UK winters....)

This is what you need : http://www.akvaterm.fi/eng/Accumulators/AKVA_GEO.206.html you'll just about get away with the 300 litre version

and no there is no way around it

You don't need the solar version - that is for solar thermal systems.

eurocooling
31-07-2014, 08:46 PM
We are using this system In Portugal for 3 months a year

NewtonJuns
22-09-2014, 06:46 AM
Nowhere in the literature does it say 80C is achievable. I wouldn't put my name on that system, and I do use solar energy (http://www.shinesolar.net/products/off-grid-poly-panels). Be careful.

Thanks for your advice.. Well I will be careful..I was going to make similar mistake but now I will be careful..