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GEA Bock HGZ7 Series User Manual

GEA Bock HGZ7 Series
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09726-06.2018-DGbF
Therefrigerantsuctionedoutoftheevaporator(20)iscompressedbythe4cylindersoftheLPstage
(2)tointermediatepressureMP.Afterthat,thesuperheatedrefrigerantowsthroughtheintermediate
pressurechamber(3),whereitiscooledbytheliquidsubcoolersystemtoreducethedischargeend
temperature.The refrigerant then ows through the intermediate pressure line (4) to the electric
motor of the compressor for to cool the motor. After this, the refrigerant is suctioned in by the two HP
cylinders(5)andcompressedtothenalpressure.
Liquidsubcoolersystem
Theliquidsubcoolersystemconsistsofthecomponents
-liquidsubcooler(plateheatexchanger)(6)
-expansionvalve(7)
-sightglass(8)
-solenoidvalve(9)
-lterdrier(10)
Aftertherefrigerantreciever(15),theliquidlinewillbesplittedintotwolines:
Line A leads through the liquid subcooler (6) and the subcooled refrigerant ows to the
evaporator (20).Through Line B refrigerantis expanding throughthe expansion valve(7) into the
liquidsubcooler(6)inordertosubcooltherefrigerantoflineAandthroughtheintermediatepressure
line(MP)tocoolthesuperheatedrefrigerant,whichiscompressedfromlowpressuretointermediate
pressurechamber(3).
4| Description of functions

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GEA Bock HGZ7 Series Specifications

General IconGeneral
BrandGEA Bock
ModelHGZ7 Series
CategoryAir Compressor
LanguageEnglish

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