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Krondor
08-09-2009, 12:43 PM
Hi all,

I'm looking for an air source heat pump for commercial sanitary water heating applications. The output water should be at least 65 degrees (Celcius).
Any suggestions (besides Chineese manufacturers) would be kindly appriciated.

Quality
08-09-2009, 12:51 PM
Hi all,

I'm looking for an air source heat pump for commercial sanitary water heating applications. The output water should be at least 65 degrees (Celcius).
Any suggestions (besides Chineese manufacturers) would be kindly appriciated.

http://www.ecoheatpumps.co.uk/commercial_sector_heat_pumps.htm

Try these

brunstar
23-12-2009, 01:05 AM
There is a new heat pump which can do the trick for you which is the Daikin Altherma HT unit which can produce water temperatures of up to 80 degrees so running hot water at 65 degrees is a good option here with good COP'S.

Krondor
23-12-2009, 09:56 PM
Well, yes, lterm is a good solution, but because of the small capacity it can be used only for residential purposes.

brunstar
23-12-2009, 11:15 PM
Well depending on what capacities that you are looking at??
you can combine capacities on smaller units or use chiller heat pumps which are available in as large as you need them if you have the space..

brunstar
23-12-2009, 11:25 PM
Krondor, how much water are you looking to heat up and in what time frame?
This would be a good solution with solar..
http://www.altherma.co.uk/binaries/UKEPLEN09-724_Daikin%20Altherma%20HT_tcm275-141655.pdf

or

http://www.altherma.co.uk/binaries/UKEPLEN09-726_Solar%20System%20for%20Daikin%20Altherma%20HT_tcm275-148567.pdf

desA
24-12-2009, 06:05 AM
Well, yes, lterm is a good solution, but because of the small capacity it can be used only for residential purposes.

What heating capacities are you looking for? I can arrange supply out of SE Asia for heating capacities suitable for commercial heating purposes - manufactured by Australian/UK expertise.

If your requirements are outside the typical domestic range, let me know. If you need a specific design, for large capacity - let me know per pm. I'd be happy to supply a detailed one-off thermal design, at a fee, if you want to build it over there, through competent builder/s.

Krondor
24-12-2009, 01:57 PM
What i'm looking at is heat pump unit for different capacities (100 Kwt and more). I'm looking for an "off shell" unit that can rk the whole year (incluidng summer) for sanitary heating purposes

desA
24-12-2009, 03:07 PM
AWHP for greater than 100kW represents a reasonable design challenge.

Most commercial designs have tended to hone in on the 25kW range in terms of volume sell. Multiples of this unit are then installed.

My suggestion is to rather go for slightly smaller units, multiple of. This modular principle allows for equipment downtime & maintenance. Also, in low-peak usage times, some units can be idled.

I can locate you units up to around 65kW made over here - quite a nice design, actually. The rest of the common supply is in the range 25kW max.

If you want something bigger than that, then you may have to go for a specialist design. There are quite a number of design tricks needed for design of solid, simple, reliable solutions, for the compressors to last longer than 18 months... :D

You may want to search for a longish thread on RE refering to AWHP's. Some useful information is on there.

Krondor
25-12-2009, 09:20 PM
Thanks, i'l ldo so..

mad fridgie
26-12-2009, 07:28 AM
How many units are you looking at? We have off the shelf designs (nowadays very few hold stock,)
But the nature of the beast means that you have to order the right product for the right application.
Questions that need to be answered
What is the normal ambient range for this unit (could be more than one answer for different areas) This effects design type and unit cost
Sanitory water, this depends upon local regulations (do you need some sort of double barrier) and does the water supplied to the tap need to be 65C.
What amount of thermal storage do you need, and what is the daily load profile.