GKv 5710 / 5760 GKv 6410 / 6460
Contents
1. version 01 GKv 10 60 8 3 Sensor menu Display Operation Display following Testing option Info operation Service menu start Hold down Alarm and press Service menu Demo mode Demo mode can be deactivated only via service menu not by OFF ON i i E1 and E2 in Press Alarm and select sensor 2a oaee alternation with the Sensor with Up i respective temperature 2b Open close door PISPA yS GOOLSTANUS Reed contact 1 open O closed As soon as Alarm is pressed you reach the higher level menu d1 L F 9 0 Table of error codes Defective component Emergency operation Compressor 20 min ON 15 min OFF F1 Air sensor i l Fan Depending on setting 2 F Evaporalor sentor Compressor 20 min ON 15 min OFF j Fan Depending on setting Page 15 152. and audible Door alarm Audible Floating alarm contact Not present HACCP Not present Fan Present Defrosting Automatic Interior light Not present Service menu Present Compressor Standard Solenoid valve refrigeration ircd Not present Door closing mechanism Present Page 3 15 GKv 10 60 Service Manual No 21 2007 version 01 GKv 10 60 3 0 Description of the appliance The GKv 5710 5760 and GKv 6410 6460 models are refrigerators for the catering business with freely suspended rear wall evaporator The appliances have a fan in the interior which increases the cooling action of the appliance and achieves more even temperatures The temperature control is effected by an air sensor and evaporator sensor 3 1 Sensor positions schematic diagram i 4 n ll_ __4 Fan i ae Air senso e Evaporator sensor a Fig 3 1 1 GKv 57 Fig 3 1 2 GKv 57 Page 4 15 Service Manual No 21 2007 version 01 GKv 10 60 4 0 Main components and their functions 4 1 Electrical components and functions Type Components Setting range Display range Ventilation Temperature alarm Door alarm Child proofing Defrosting Evaporator sensor Air sensor Door switch Series 6 electronic control system Integral PCB 1 C to 15 C 1 C to 47 C Ventilation ON Fan in continuous operation Ventilation OFF Fan in parallel with compressor Note When
3. the door is open the fan is always switched off During initial operation the fan does not run before the evaporator is cooler than 8 C When Display value longer than 20 minutes 4K warmer than set value Audible 4 beeps suppressed during initial operation Visual Flashing temperature display To avoid unnecessary warnings e g door opening the temperature has to be above the alarm value for at least 20 minutes alarm delay e g set value 5 C display for 20 minutes at 9 C gt alarm When Door open longer than 3 minutes Audible 3 beeps The function is activated via the customer menu see 7 1 When the child proofing is activated the ON OFF button and the temperature setting buttons are inactive The remaining functions can be used Automatic during standstill phase of the compressor Position In sensor pocket on back of evaporator Function Switches the compressor ON Switches the fan ON with a delay when the appliance is put into operation Position On the left next to the fan behind the cover Function Switches the compressor OFF Generates the display value Position In front panel Type Reed PCB Contact type Make contact Function Activation via magnet in the door magnet is non replaceable Switching signal when door closed fan ON door open fan OFF door alarm ON Page 5 15 Service Manual No 21 2007 version 01 GKv 10 60 Fan Position At the centre back of the ceil
4. LIEBHERR Service Information Service Manual No 21 2007 version 01 LWL KDT baj 14 05 07 Appliance Documentation GKv 5710 5760 GKv 6410 6460 Refrigerator for the catering business ventilated GKv 6460 GKv 5710 E l i e a E j Wath RUAANNATTTTTUT ao E r rE aati s r a4 Page 1 15 21200701SM_gb Service Manual No 21 2007 version 01 GKv 10 60 Contents 1 0 Operating and Control CleMeNt ccccesseeeeseeeeseeeeeeeeeeneeeeneeeenseeeeneeoesseeonseeeeaeeoeaeeneanenenseees 3 20 PURCTIONS ata Glan Ce sccsisesanss che cetcce sees scecdties aapea Eaei EAEra 3 3 0 Description OF INC APPIANC On cascescsiccscceceaceescbeesceancdaatacioaspiecacusecnetdacessauesutedeasicccesncsuec edeestinecics 4 3 1 Sensor positions schematic diagrams ccccceccseeecceeeceeeeeececeeeceueeseueeseeeseueeseeeseueeseeesseeeaees 4 4 0 Main components and their functions cccceceeeeeeeeeeeeeseensonseenseensseneeonseeneseasonsenensnaeeones 5 4 1 Electrical Components and functions ccc cece eee ececeeeeeecae eee eeeeeeseeeeeeeseeeueseeesaeeseeeseeeseeseeeeaes 5 4 2 Refrigeration components ccccceccceeccceeeceececececeeeeceeecsueeceeeesueeceeenaeeseueesseetseeenseeseesesseeneeeeas 6 A a 4 a Te e ne en ee E E ee 6 AO WOOF CIOS ING MCC INNS We soc cacceseacentse isinne atatencies Gc iee EREE EEA A 6 4 3 2 Pressure compensating valve senv
5. assacuanicasianianrcnsinswaianaemensiealundision dibdaiaasdine dda tea sann nea cetandud wnadicanatatis nates dieredenciuattasts 7 A WA AN Ye Ua esses eerste Pacanen a aad E E EE 7 Aaa PACS TAINS TGE aes anette cect na EE aR OE REEDE EEE EESE EEE 7 5 0 Assembly instructions replacement of parts ccceeecseeeceeeeeeeeseesesenesensesenesenseseneseanees 8 5 1 Electronic COMMS SUC isi AE T aA R aeaa 8 5 2 Fan9 DOAN SONSON E E oleae ba amend eeiowee 10 DA Evaporator SONS Ol osr EE EEA EREA EEEE RAER RER 10 00 Technical data sepisan 11 6 1 Reinigerator COMPANIME IM iicsccepscaceatnacindocatsedentneseamacteiwonis cavtecisecdsendehensthacteinesacsoeiednetbueercieies teen 11 70 CUSTOMER MOTI sisisi ea S E AE EEA i Eiaa 12 60 S6VICGE MENU resna E Ee 13 SeT DEMO MOO cran te E E A E E O 13 82 SIN CO MOE ceo ca see eines en ETEA EE RRE ONE ARRE EAE E EEA RERE 14 OTIS OF ISU eea a a T hemeaacasadeess 15 90 Table lerror COGS ecis EAEE E EEEE T Ei 15 Page 2 15 Service Manual No 21 2007 version 01 1 0 Operating and control elements On Off Alarm Refrigerator compartment Temperature display Temperature setting buttons Alarm OFF button Child proofing display ON OFF button Fan switch if activated the symbol next to the child s face lights up ou Fh WND 2 0 Functions ata glance Control Electronic control system Temperature display Actual value Temperature range 1 C to 15 C Temperature alarm Visual
6. d Fig 4 3 3 1 4 3 4 Adjustable feet The adjustable feet are screwed on from underneath with an Allen screw A reinforcing bracket is screwed into place for each of the two rear adjustable feet to increase their stability Fig 4 3 4 1 Adjustable foot Fig 4 3 4 2 Reinforcement for rear adjustable foot Page 7 15 Service Manual No 21 2007 version 01 GKv 10 60 5 0 Assembly instructions replacement of parts 5 1 Electronic control system Covers Unclip covers on the underside of the front housing Fig 5 1 2 Bolt Undo screw and remove bolt PCB carrier Draw front housing forwards and lift it up Remove PCB edge connector and unclip PCB carrier from the front housing Ts y PCB carrier sion A E She mT eee Ol i mr a 4 m EE pi i i PCB edge mnam SOTE Figi FTP Fig 5 1 5 Page 8 15 Service Manual No 21 2007 version 01 GKv 10 60 PCB Release marked locks and remove PCB from the PCB carrier 5 2 Fan Fan cover Remove stoppers and undo the fastening screws Tilt the cover forwards and lay it on one of the wire grids Release fan holder remove vanes and detach fan motor CF Shi Ae a Fig 5 2 1 Fan cover Fig 5 2 2 Fan holder Connector Detach strain relief at the rear of the appliance and draw the cable together with the connector out of the duct Fig 5 2 3 Page 9 15 Service Manual No 21 2007 version 01 GKv 10 60 5 3 Air senso
7. ing of the compartment liner Function Provides even temperatures and increases the cooling action see also Ventilation function During initial operation the fan does not start before the evaporator is cooler than 8 C Compressor Function ON Evaporator sensor switch on value OFF Air sensor switch off value Special features On delay time 8 mins must have elapsed Type Standard 4 2 Refrigeration components Compressor Standard Evaporator Design Rear wall evaporator Type of installation Suspended freely Injection point Top left Flow sequence Down on the right hand side and up again on the left hand side Condenser Design Wire on tube condenser Type of installation Suspended freely at the rear 4 3 Other features 4 3 1 Door closing mechanisms At an opening angle between 0 and 90 the hinge bush slides over the oblique curve of the hinge bolt so that the door closes automatically At an opening angle larger than 90 the door stays open s i Fig 4 3 1 1 Opening angle gt 90 Fig 4 3 1 2 Opening angle lt 90 Fig 4 3 1 3 Opening angle 0 Page 6 15 Service Manual No 21 2007 version 01 GKv 10 60 4 3 2 Pressure compensating valve The pressure compensating valve is situated behind the fan cover in the rear wall Pressure compel isating valve L Fig 4 3 2 1 4 3 3 Water drain The water drain has a 34 thread on the underside to allow hose connection if require
8. r Air sensor Remove fan cover Remove sensor from the holder and extricate it through the rear wall Fig 5 3 1 5 4 Evaporator sensor Evaporator sensor Remove fan cover Undo bayonet screws and carefully swivel the evaporator to the left Pull sensor out of the pocket and extricate it through the rear wall f Sensor pocket Fig 5 4 1 Page 10 15 Service Manual No 21 2007 version 01 GKv 10 60 6 0 Technical data 6 1 Refrigerator compartment Fan Wattage 14 watts Voltage 230 volts Speed 1800 rpm Direction of rotation right viewing direction onto shaft Sensor values C Resistance value kOhm T Page 11 15 Service Manual No 21 2007 version 01 GKv 10 60 7 0 Customer menu Display Operation Display following Testing option Info operation Service menu start Aausivaie Hold down Alarm button for 3 a Activation customer seconds menu a a eG 2a a Press Alarm Changeover cO Child proofing between c and h with Up deactivated onn Activate child Press first Alarm then On Off Actual value Child proofing ON n n child proofing proofing m Press first Alarm then On Off Actual value Child proofing OFF ST ee ee Mni Choosing display brightness ppm stage of brightness hi to h5 wanted with Up and confirm seas brightness with Alarm Press On Off Actual value Display brightness adjusted Page 12 15 Service Manual No 21 2007
9. version 01 GKv 10 60 8 0 Service menu The service menu may be used only by customer service technicians 8 1 Demo mode Display Operation Display following Testing option Info operation Service menu start Hold down Alarm and press Service menu Actual value On Off at the same time d1 or dO flashes Demo mode Demo mode can be deactivated only via service menu not by OFF ON rh Press Alarm Actual value Demo mode OFF Operation is switched to the mode wanted demo mode or normal as soon as Alarm has been actuated Page 13 15 Service Manual No 21 2007 version 01 GKv 10 60 8 2 Service mode Display Operation Display following Testing option operation Info Service menu start 1 Actual van Hold down Alarm and press dt tashes Service menu On Off at the same time activation Service mode Test display LED buttons door contact potentiometer Press Up until L flashes Service mode selected Press Alarm Service mode activated Door open and closed A PURON Eee ane Door contact LEDs display segments shine All button LEDs and display Press all the buttons Brief beep LO lights segments shine re Buttons After step 4 actuation of the last button LO flashes Service mode testing electric loads C e eC e Return to step 5 is brought about by pressing the Alarm button again End Press On Off Page 14 15 around evaporator ice Manual No 21 2007
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