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Search: Posts Made By: daliti
Forum: Geothermal & Heat Pumps 09-03-15, 02:59 PM
Replies: 218
Views: 48,817
Posted By daliti
That's what we measure in the field after 15...

That's what we measure in the field after 15 years installing DX systems. Better a little to much than too less copper. Evaporating 1 K lower due to insufficient length results in 2 tot 2.5 % more...
Forum: Geothermal & Heat Pumps 08-18-15, 05:37 AM
Replies: 218
Views: 48,817
Posted By daliti
You don't need an oil separator as long as you...

You don't need an oil separator as long as you have sufficient speed in your lines.
A coil of 70 m (+/- 200ft is max length as well) will extract +/- 2,5 to 3 kW.
We mainly use 1/2" coated...
Forum: Geothermal & Heat Pumps 08-18-15, 05:33 AM
Replies: 218
Views: 48,817
Posted By daliti
Pond

We installed 10 years ago a OEM-DX in a pond besides a factory. Have pictures of it but don't know how to post these. Straight copper coils on stainless steel headers on the bottom of the pond.We...
Forum: Geothermal & Heat Pumps 08-18-15, 05:27 AM
Replies: 218
Views: 48,817
Posted By daliti
Pond

We installed 10 years ago a OEM-DX in a pond besides a factory. Have pictures of it but don't know how to post these. Straight copper coils on stainless steel headers on the bottom of the pond.We...
Forum: Geothermal & Heat Pumps 08-18-15, 04:25 AM
Replies: 218
Views: 48,817
Posted By daliti
Pond

We installed 10 years ago a OEM-DX in a pond besides a factory. Have pictures of it but don't know how to post these. Straight copper coils on stainless steel headers on the bottom of the pond.
Forum: Renovations & New Construction 08-23-13, 07:30 AM
Replies: 22
Views: 10,284
Posted By daliti
It's of course used in winter for heating as well...

It's of course used in winter for heating as well (GSHP) because we have -10C outside in winter. For cooling you need narrower spacing because DT is smaller when cooling.
Forum: Renovations & New Construction 08-23-13, 02:53 AM
Replies: 22
Views: 10,284
Posted By daliti
Haven't read all the posts. We installed several...

Haven't read all the posts. We installed several PEX floorcooling systems in Belgium.
You don't have to install moisture sensors in the slab, they will be useless. Condensation needs measurement of...
Forum: Geothermal & Heat Pumps 08-02-11, 02:05 AM
Replies: 91
Views: 41,918
Posted By daliti
Haven't read all the posts and just joining now...

Haven't read all the posts and just joining now but I see some problems:
piping is small and will provoke a big pressure drop
Piping is flexible and removing air out of your system will therefore...
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