(19)
(11) EP 1 855 070 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
25.11.2009 Bulletin 2009/48

(43) Date of publication A2:
14.11.2007 Bulletin 2007/46

(21) Application number: 07009535.1

(22) Date of filing: 11.05.2007
(51) International Patent Classification (IPC): 
F25D 17/02(2006.01)
(84) Designated Contracting States:
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 States:
AL BA HR MK RS

(30) Priority: 12.05.2006 IT PD20060186

(71) Applicant: Blue Box Group S.r.l.
35028 Piove di Sacco, PD (IT)

(72) Inventor:
  • Ferrari, Francesco Giovanni Maria
    35028 Piove di Sacco (PD) (IT)

(74) Representative: Gallo, Luca 
Gallo & Partners S.r.l. Via Trieste 49
35121 Padova
35121 Padova (IT)

   


(54) Free cooling chiller


(57) Free cooling chiller (1) comprising a primary circuit (2) of a refrigerating plant, provided with an evaporator (6), a condenser group (5) and a compressor (4) and able to perform heat exchange by means of the evaporator (6) with a secondary circuit (3) for transferring refrigerating power to user appliances. The secondary circuit (3) is provided with a return line (10) intercepted by a free cooling group (13) and a circuit for bypassing the free cooling group. The chiller (1) is provided with a support structure (14) defining a containing compartment (16) acted on by an air flow produced by a ventilation unit (15). The condenser group (5) and the free cooling group (13), which are intercepted by corresponding gate valves (17,18), communicate via separate sections with the compartment (16).







Search report