Global Patent Index - EP 2012069 A8

EP 2012069 A8 20090715 - Method for regulating the delivery temperature of a service fluid in output from a refrigerating machine

Title (en)

Method for regulating the delivery temperature of a service fluid in output from a refrigerating machine

Title (de)

Verfahren zur Regelung der Ausgabetemperatur einer Betriebsflüssigkeit im Auslass einer Kühlmaschine

Title (fr)

Procédé pour réguler la température de livraison d'un fluide de service dans une sortie de machine réfrigérante

Publication

EP 2012069 A8 20090715 (EN)

Application

EP 07425350 A 20070604

Priority

EP 07425350 A 20070604

Abstract (en)

[origin: EP2012069A1] In a refrigerating machine (3) for an air-conditioning system (1), which is equipped with one or more fan coils (2) and a hydronic circuit (15) having a delivery branch (16) for the circulation of a service fluid (5) from the refrigerating machine (3) to the fan coils (2) and a return branch (17) for the return of the service fluid (5) in input to the refrigerating machine (3), a delivery temperature measurement (TDLV) is compared (102, 103) with a pair of temperature thresholds (TLOW, THIG) positioned in a certain manner with respect to set point temperature (TSET), the compressor (12) of the machine (3) is switched on and off (104, 105) on the basis of this comparison such that the delivery temperature (TDLV) converges to the set point (TSET), and the position of the thresholds (TLOW, THIG) with respect to the set point (TSET) is adjusted (109, 111-113) as a function of an estimate of the cooling/heating load (FL) of the service circuit (15).

IPC 8 full level

F24F 11/00 (2006.01); F24F 11/06 (2006.01); F25B 49/02 (2006.01)

CPC (source: EP)

F24F 11/30 (2018.01); F24F 11/83 (2018.01); F25B 49/022 (2013.01); G05B 13/021 (2013.01); G05D 23/1931 (2013.01); F24F 2110/00 (2018.01); F25B 2600/0251 (2013.01); F25B 2700/21172 (2013.01); F25B 2700/21173 (2013.01)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK RS

DOCDB simple family (publication)

EP 2012069 A1 20090107; EP 2012069 A8 20090715

DOCDB simple family (application)

EP 07425350 A 20070604