Thermal use of the underground - Ground source heat pump systems, Corr. concerning standard VDI 4640 Part 2:2019-06.
STANDARD published on 1.4.2020
Designation standards: VDI 4640Blatt2/Ber
Note: Correction
Publication date standards: 1.4.2020
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: German technical standard
Category: Technical standards VDI
Thermische Nutzung des Untergrunds - Erdgekoppelte Wärmepumpenanlage, Berichtigung zur Richtlinie VDI 4640 Blatt 2:2019-06.