EP 0291619 A3 19890614 - COOLING AND HEATING SYSTEM FOR BUILDINGS EMPLOYING A CENTRAL HEATING INSTALLATION
Title (en)
COOLING AND HEATING SYSTEM FOR BUILDINGS EMPLOYING A CENTRAL HEATING INSTALLATION
Publication
Application
Priority
GR 870100787 A 19870520
Abstract (en)
[origin: EP0291619A2] The cooling-unit (1) is installed in parallel to the existing central heating boiler (2). Valves (4) are installed to cut off the circulation in the cooling or heating conduit, whichever is not in use. At the lower exit pipe of the radiators (7) is an installed air-recycling device (6,10), which operates under the pressure generated by the liquid cooling-agent circulating in the conduit, or alternatively by means of an electric fan.
IPC 1-7
IPC 8 full level
F24D 11/02 (2006.01); F24F 5/00 (2006.01)
CPC (source: EP)
F24D 11/0214 (2013.01); F24F 5/0003 (2013.01)
Citation (search report)
- [X] US 3145925 A 19640825 - SWENSON PAUL F, et al
- [X] US 2121625 A 19380621 - CRAGO HARRY R
- [X] US 3425485 A 19690204 - NEWTON ALWIN B
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0291619 A2 19881123; EP 0291619 A3 19890614; EP 0291619 B1 19951129; AT E130928 T1 19951215; DE 3751620 D1 19960111; GR 870787 B 19870528
DOCDB simple family (application)
EP 87600008 A 19870721; AT 87600008 T 19870721; DE 3751620 T 19870721; GR 870100787 A 19870520