GEA Bock HGZ Series - Page 2

2
D
GB
F
E
09726-09.2013-DGbF
1 Safety 3
 1.1 Identicationofsafetyinstructions
 1.2 Qualicationsrequiredofpersonnel
 1.3 Generalsafetyinstructions
 1.4 Intendeduse
2 Product description 6
2.1 Shortdescriptionstandarddesign
 2.2 Mainandfunctionalparts
2.3 Shortdescriptionoptionaldesign
2.4 Nameplate
2.5 Typekey
3 Areas of application 9
3.1 Refrigerants
3.2 Oilcharge
3.3 Limitsofapplication
3.4 Subcoolingtemperature
4 Description of functions 12
4.1 Two-stagerefrigerationcircuitwithliquidsubcooler
5 Compressor assembly 14
5.1 Settingup
 5.2 Installationoftheliquidsubcoolersystem(standarddesign)
5.3 Installationexample,liquidsubcoolerwithaccessories
 5.4 Factory-installedliquidsubcoolersystem(optionaldesign)
5.5 Pipeconnections
5.6 Pipes
5.7 Layingsuctionandpressurelines
5.8 Operatingtheshut-offvalves
5.9 Operatingmodeofthelockableserviceconnections
6 Electrical connection 21
6.1 Informationforcontactorandmotorcontactorselection
6.2 Circuitdiagramforpart-windingstart
6.3 Standardmotor,designfordirectorpartialwindingstart
6.4 ElectronictriggerunitMP10
6.5 ConnectingofthetriggerunitMP10
6.6 FunctiontestofthetriggerunitMP10
6.7 Oilsumpheater(accessories)
7 Commissioning 28
 7.1 Preparationsforstart-up
 7.2 Pressurestrengthtest
 7.3 Leaktest
 7.4 Evacuation
 7.5 Refrigerantcharge
 7.6 Start-up
 7.7 Avoidingliquitsluggings
8 Maintenance 31
8.1 Preparation
8.2 Worktobecarriedout
8.3 Sparepartrecommendation
 8.4 Replacingthevalveplates
8.5 Extractfromthelubricantstable
8.6 Decommissioning
8.7 Accessories
9 Technical data 34
10 Dimensions and connections 35
11 Declaration of conformity and installation 38
12 Service 40
About these instructions
Readtheseinstructionsbeforeassemblyandbeforeusingthecompressor.Thiswillavoidmisunder-
standings
andpreventdamage.Improperassemblyanduseofthecompressorcanresultinserious
orfatalinjury.
Observethesafetyinstructionscontainedintheseinstructions.
Theseinstructionsmustbepassedontotheendcustomeralongwiththeunitinwhichthecompres-
sorisinstalled.
GEABockGmbH
72636Frickenhausen
GEABockGmbH
Benzstraße7
72636Frickenhausen
Germany
Telephone+49702294540
Fax +4970229454137
bock@gea.com
www.bock.de
Manufacturer
Contact