EP 4336105 A1 20240313 - A METHOD FOR DETECTING AIR IN A HEATING OR COOLING SYSTEM, AND A HEATING OR COOLING SYSTEM
Title (en)
A METHOD FOR DETECTING AIR IN A HEATING OR COOLING SYSTEM, AND A HEATING OR COOLING SYSTEM
Title (de)
VERFAHREN ZUR DETEKTION VON LUFT IN EINEM HEIZ- ODER KÜHLSYSTEM UND HEIZ- ODER KÜHLSYSTEM
Title (fr)
PROCÉDÉ DE DÉTECTION D'AIR DANS UN SYSTÈME DE CHAUFFAGE OU DE REFROIDISSEMENT, ET SYSTÈME DE CHAUFFAGE OU DE REFROIDISSEMENT
Publication
Application
Priority
IT 202200018183 A 20220906
Abstract (en)
An air detection process (15) for detecting air in a heating or cooling system (1) comprises one or more air detection steps (15.1, ..., 15.n) wherein, with a circulation pump (5) activated (F1) at a circulation speed, detecting a parameter (x) indicative of the water flow rate inside a hydraulic circuit (2) (F2), collecting a plurality of values (x_t) of the parameter (x) detected in a detection time interval (F3), calculating a variation (FlowRate_StdDev) of the plurality of values (x_t) collected in the detection time interval (F4), comparing the calculated variation (FlowRate_StdDev) with a variation threshold value (Threshold_var) (F5), and if the calculated variation (FlowRate_StdDev) is greater than the variation threshold value (Threshold_var), generating an notification signal of air presence in the hydraulic circuit (2) (F6).
IPC 8 full level
F24D 3/02 (2006.01); F24D 19/10 (2006.01); F24H 15/238 (2022.01); F24H 15/34 (2022.01)
CPC (source: EP)
F24D 3/02 (2013.01); F24D 19/1012 (2013.01); F24H 15/238 (2022.01); F24H 15/34 (2022.01)
Citation (applicant)
- EP 2918923 A1 20150916 - VAILLANT GMBH [DE]
- EP 1593916 B1 20120620 - WILO SE [DE]
Citation (search report)
- [A] EP 2918923 A1 20150916 - VAILLANT GMBH [DE]
- [A] EP 1593916 B1 20120620 - WILO SE [DE]
- [A] KR 20040081983 A 20040923 - LOTTE ENG & MACHINERY MFG CO
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DOCDB simple family (application)
EP 23192993 A 20230823