Home

Service Manual MDF-U74V MDF-U74VC

1. o o o en Q a 2 o o Time 42 Temperature C Temperatures after unit reaches to 80 C H HEva out MALLA L L Eva out out 0 60 120 180 240 300 360 Time min Temperature C Temperatures after unit reaches to 70 C Load ae aea 0 60 120 180 240 300 360 Time min 43 Temperature C 5 10 15 20 SV 80 C Pull up data 25 30 35 40 45 50 55 60 65 70 Time Hr 44
2. oo Cascade sensor Type 502AT 502AT 502AT _ Door switch Type SDKNA20700 SDKNA20700 SDKNA20700 Noi Type ZAC2220 11 ZAC2220 11 ZAC2220 11 se 250 20 an Battery switch Type SLE6A2 5 SLE6A2 5 SLE6A2 5 Rating 6V 1100mAH 6V 1100mAH 6V 1100mAH ilter 5 se filte Parts code 624 209 9284 624 209 9284 624 209 9284 Handle he 9VAC 0 83W 9VAC 0 83W 9VAC 0 83W 5 r tra Transformer Type S41 U097PV S41 U097PV S41 U097PV Primary 115V 115V 115V Secondary 230V 230V 230V Breaker switch Type BAM215131 BAM215131 BAM215131 Rating 250V 15 250V 15A 250V 15A Boost relay Type G7L 1A TUB MDF U74VC only Rating 30A 220V DC24V ater Lol aS Power relay Type DS1E M DC12V MDF U74VC only Rating 12V 0 6A 125V Bre witch Type IR11A2E201R MDF U74VC only Rating 250VAC 20A Power transformer Type ATR HJ61TC 1 MDF U74VC only Rating 200 225 240V Power transformer Type ATR D35003 MDF U74VC only Rating P 208V S 230V Compressor for CCC Authorization Type KS370J1NS 4AL Code 7FB 0 M101 001 07 Specifications of sensor The following shows the temperature in thermal sensor 502AT 1 and its resistance value Resistance Resistance Resistance Resistance Value Value ET XN Cis CECI cis REDE EREET 43 29 4
3. Service Manual Ultra Low Temperature Freezer FILE No MDF U74V MDF U74VC SANYO Electric Co Ltd Biomedical Business Division Effective models This service manual is effective for following models Product code Voltage and Frequency 823 020 52 823 020 53 823 020 54 MDF U74V 823 020 55 823 020 56 823 020 57 MDF U74VC 923 020 80 220V Contents Specifications Structural specifications Control specifications Performance specifications Dimensions e Cascade refrigeration system Unit parts sitem possit ori Compornents on PCB scie ruis ul situe Connection on PCB Electric parts Myd UC Y yd Y EU ei Y GE En F kee gt ERDF DE EE e Wiring diagram sussmnosinzzio nasale nen Circuit diagram Control specifications Paris tayout see Ree FI FO O DF O EI FFA TU EE TEE Pull down amp Pull up Pull down pressure Pull down current input H L EVA OUT temperatures Temperature uniformity 17points measured Amount of power consumption data Cycle operation data Sample l
4. 50 0 C 68 0 89 0 C 0 0 120 0 96 68 0 4160 0 C 68 0 89 0 C O 100 Close Open 0 100 OFF ON 0 100 OFF ON 0 100 OFF ON 0 100 OFF ON 0 100 222 0 100 999 90 0 120 Minutes 0 480 Minutes 90 0 50 0 5 0 20 0 2 5 0 20 0 C 0 50 0 50 OFF ON 0 50 OFF ON 90 0 50 0 C C C F22 F23 F24 F25 F26 F27 lt Purpose gt lt Operation gt lt Purpose gt lt Operation gt lt Purpose gt lt Operation gt lt Purpose gt lt Operation gt lt Purpose gt lt Operation gt lt Purpose gt lt Operation gt Setting of serial communication mode input F22 and press SET key to display 000 Factory default Change a value by pressing A key and key Press SET key to store the value and return to chamber temperature display Control mode the 3 digit 0 Local initial 1 Remote Baud rate the 2 digit 0 2400bps initial 1 4800bps 2 9600bps Note Setting value cannot be changed at control panel if control mode is set to Remote To display a power supply voltage Unit 96 Service code should be input in F06 prior to use this mode Input F23 and press SET key to display alternately F23 with present power supply voltage Press SET key to return to chamber temperature display Linkage between remote alarm and buzzer Input
5. ERE T L A d SS3NHYH SS3NHVYH HO SS JNSVH 03 SSANSYH 83NHYH 93 SSSNHYM T SS3NNYH d SSINYYH HJ SS3NHYH 48 JS INS iL Ir Ni A na 9 4 4 E 3745 favor avon u tafel A x uo 3NI1 SANIT nto 5 6 Taw HET ini 14 5 PS 01 31H oe Ba ERGEN 39 I 5 ES zs 097 18 20 2 Z IVN WAAL i 5 101601 NR ag 18 a 19 Ra oa L u3AO 2 z EE MOSS3MdHOI mao 1 NOSNZS W NYJ ASSY 38 M age 30 99 9 res x pm L ___ _ SA VOL 1 SINHWVH gt ul 18 HLEVI HIUY A 3E H31V3H JE Fant favo E uM O00000 dd ug M Beds 1542 deuS pam N HF T 0800 M3AO0d ag x o 02 TO oe cl del 2505 A A o og x uz 38nL dvo of gt uz MO LOHNY 4 ul 1 cl gt gt So RM Z2 CS FED Y 38 4317113 ASS lt X a a a a an Mr s di a A LY lt l Ade T al NOVA 2 18 1 n 2 dV2 ONINNOY u3080238 HOLIAS l 1 Savas dn NOVA ONILIBSVIS bin gel ad mL aes 1 AVTAY HOLLAS A 4340 8000 lt 421 L ee ee ee Se 252 a 1 HOSS3NGWOD
6. SEJ 8999290 AYILIVA A N9 HW IN 1183 E071 81H D N 088 1 101160 38 A NS gt SI i gt LL C gt gt SI LO LL 2 a a4 As 000 309 N3A Od Circuit diagram LP Lew BUZZER ALARM TEST SWS2 cl O SW53 1 O 5954 1 O O O O o nu an Ca 1832475 n t 323071 P 11 8 2 2 gt 1 Oa n 1 On e a wan i r 831713 i 4 n095 u15 ESdO pl OF NOILEGNGS A 2r mE NAV S i 3 sages m e e GP inn 1 1 U mene i i nino Er 5 88 2 2 y R Gy NF EN ND OD OD EP IT i nn Ih OVP 27 m QOor GELBSI 820 Qor 6tiusi 2201 161 EO jamaar 00 6 1051 970 nie um a e O0P 6 1HS 7 E
7. digit in LED blinks Press this key again to store a value to be changed If this key is pressed during STATUS lamp illuminates status code 1 2 and 3 is displayed A blinking digit can change among 1 digit 3 digit with every time press this key If this key is pressed for 5 seconds when a chamber temperature is displayed Key Lock activates with L O is displayed A blinking digit can increase one by one every time press this key If this key is pressed for 5 seconds when a chamber temperature is displayed Function mode activates with FOO is displayed 50 C 90 C 180 50 Press SET key and set the required value with A key and PP key Press SET key to store the value to be changed Unacceptable setting If a value which is out of setting range is input and SET key is pressed it is range Temperature alarm Setting range Setting procedure noticed the value cannot be set with audible alarm sounds for 1second High temperature alarm 5 C 20 C Factory default 10 C Low temperature alarm 5 C 20 C Factory default 10 C Keep pressing key over 5 seconds to step to function mode F00 Input F01 for high temperature alarm or F02 for low temperature alarm Press SET key to set the value to be changed with the 1 digit blinks Press SET key again to store the value in the non volatile memory Unacceptable setting value which is out of setting ra
8. gt P an HALA a 10 SE05482 42000 as iia MOSN3S 0496 0 i dh 2 ar YU 10 BFOS3BZ 7 7 100 F Di 5810 0543 12V E C8 0 laF az e a OU AM UR AP e UR SP GR SR GA UR 4A 4D 9 aa ele 2 o 4 Q 5 LS g A sige Control specifications 1 Key and Switch BUZZER STATUS Digit shift key Numerical value shift key Temperature control Setting range Display range Setting procedure In alarm condition audible alarm silences when this key is pressed Remote alarm activates and message is not eliminated When a power failure is occurred battery back up press this key to show a chamber temperature for 5 seconds When this key is pressed unit steps into Alarm Test mode with ALARM lamp blinks intermittent buzzer beeps digital LED goes off and remote alarm activates After an elapse time is about 90seconds unit returns to normal condition Auto Return function If Alarm Test is performed when a battery switch is in off position E09 blinks on the display Press this key once to activate setting mode with
9. 000 Key Lock 000 Linkage between remote alarm and buzzer OFF Buzzer tone for filter alarm OFF Diagnosed value for STATUS 3 Sa Fixed F18 lt Purpose gt Setting of capillary heater ON OFF time lt Operation gt Service code should be input in FO6 prior to use this mode Input F18 and Press SET key to display 000 Factory default Change to alternative value 000 or 001 by press Z key and DD key Press SET key to store the value and return to chamber temperature display 000 Capillary heater is forced to turn on when it turns off Capillary heater is forced to turn off when it turns on 001 Capillary heater is not forced to operate F21 lt Purpose gt Setting of serial communication ID lt Operation gt Input F21 and press SET key to display 000 Factory default Setting range is 001 255 by pressing l key and bb key Press SET key to return to chamber temperature display lt Serial communication data gt Chamber temperature Cascade temperature Power supply voltage Filter temperature Ambient temperature Door status Capillary heater status Compressor H status Compressor L status Power failure Running rate Diagnosed value for overload operation 2H timer count 9H timer count Chamber set temperature Set temperature of high temp alarm Set temperature of low temp alarm FILTER lamp status Remote alarm status STATUS lamp status Chamber set temperature for remote mode 205 180 0
10. 49 ie a ZI 0 a Sai pe zo zo n0 ce lt lt La ca gt co 2 E EO e e o e o VIOLET LIGHT BLUE YELLOW WHITE amp ten ed T gt Y Wi Vi L BL A9 SSANSYVH dy ORANGE PINK 0 R RED GY GRAY RELAY L HEATER RELAY H COMP RELAY TEMP CONTROL AV133 ONIIUYIS 1 AV IJD 9SNIISVIS BLUE BLACK BROWN GN GREEN LI BL BK BR SS3NHVH EE BUREAU CER EUER 55 1871 LI LUI 18 31 B gae T d SSINHVYH HO SS3N4VH 93 SS3NSVH HARNESS RLY HARNESS 85 SS3NHYH Sd SS3NHVH dk b nd 15A gt 3N11 3NI1 A A 3 TEF 01 31H 484 18 49 5 d i 097 11 S Nd SS3N YH SE BREAKER SWITCH 2560 Nor JO YNIWU3L 1 29gn 342 m a a e WSV 1 JAVA gt OMIM a 2j ou 18 NO11d0 210438 MM Ma L Dae pe E gt gt Co o i 0 ig uv H NOSS3EdWOO 54 2 HLSV3 NOSNIS Eu gt i SNVUL oid IN 430409384 ao 6 NVJ ASSY 3M SAYOL T 5 9 A Y LL Lj WE A NO 1 SSANYWH ILE tis a a 9 M SUL u3
11. contact outputs In normal condition open for 1 2 and closed for 1 3 To control chamber temperature 12VDC 1 2 Temp control relay To supply the power to Cap tube heater 3 4 Heater relay 12VDC 1 5 Switch PCB 6 7 Buzzer Display PCB To connect to each LED To connect to each switch 1 2 Battery 1 6V 2 Battery switch To supply the power during power failure 3 4 Transformer To supply the power to PCB 1 2 H Comp relay To control compressor H ON OFF 12VDC 01110 CN11 1 3 Temp sensor To detect the internal temperature CN5 111 22 Door switch To control the door switch ar 5 76 AT sensor To detect the ambient temperature 8 Filter sensor To detect the temperature in condenser outlet pipe 9 10 Cascade sensor To detect the temperature in cascade Electrical Parts Compressor Type KS370J1NS 7A KS370J1NS 4A KS370J1NS 4AI Code 0 101 001 06 0 101 001 04 0 101 001 05 Rated voltage 50 60Hz 220V 60Hz 220 230V 50Hz 230 240V 50Hz Winding resistance C R Main 1 64 Q 2 53Q 2530 C S Aux 3 35 V 4 80 4 89 Starting relay Type AMVL 300A AMVL 300A AMVL 300A Pick up voltage 215 247VAC 60Hz 185 217VAC 50Hz 185 217VAC 50Hz Drop out voltage 69 132VAC 60Hz 60 120VAC 50Hz 60 120VAC 50Hz Overload relay Type MRA999549201 MRA999539201 MRA999539201 Action to the temp no current ON 69 11 C OFF 135 5 C ON 69 11 C OFF 135 5 C ON 69 11 C O
12. data AT 30 C Chamber temp C o 4 5 6 Time Minute o A N 213 Pressure MPa Pull down pressure data AT35 C 50Hz ANARARRARAR 4 6 8 10 Time Hour 12 14 16 Pressure MPa Pull down pressure data AT35 C 60Hz Time Hour cvm Current A A o N wo A O N O o Current Input data AT35 C 230V 50Hz 4 6 8 10 12 Time hour 14 Input kW Current A N A O O N o o o Current Input data AT35 C 220 60 2 4 6 9 10 12 Time Hr 14 Input kW cm C H L OUT temperatures AT30 C HEVAout LEVAout 1 2hair Time Hr 10 12 14 94 Temperature uniformity 17 points measured Measured points Back le Upper area measuring points bn D 70mm H from top of interior 2 mm D 42 6mm W from each corners on Middle shelf 65mm H from top of interior ii 16 10mm H from upper shelf Middle area measuring points shelf EP Middle 10mm H 27mm D 42 6mm W from each corner on middle shelf 40 10mm H from middle shelf Bottom
13. on Buzzer stop key BUZZER Alarm test key ALARM TEST Control panel Status key STATUS Set key SET Digit shift key p gt Numerical value shift key LO Key Lock is OFF L1 Key Lock is ON When a temperature in cascade sensor is lower than 34 C compressor L turns on When a temperature in cascade sensor is higher than 12 C compressor L Compressor protection turns off When a temperature in filter sensor is higher than 60 C compressor H turns off Overload relay If several units are installed on a same site it is possible to set delay time not to start them simultaneously after they returns from power failure Start delay Setting range 3 15 minutes Unit 1 minute It is impossible to set delay time individually by units mPerformance specifications Temperature control range 50 C to 86 C ambient temperature 30 C no load Rated power consumption 1170 W Noise level 51 dB A background noise 20 dB Maximum pressure 2680 kPa Model MDF U74VC Cooling performance 86 C at the center of the chamber ambient temperature 30 C no load Design or specifications will be subject to change without notice lt Overlook view gt Power cord lt Side view gt lt Front view gt Cascade refrigeration system H side Compressor H E L side mu Pre condenser gt gt gt 5 A Dryer H Frame pipe o Pre condenser Suction heat Condenser vn E RAM
14. 0 C 1 is displayed STATUS 2 When a power source voltage becomes low Lower than 2 01VDC between TP7 and TP3 2 is displayed STATUS 3 When running rate is higher than 95 3 is displayed Display of STATUS code Ex 1 Every STATUS codes are displayed in the following order when all of three STATUS occur simultaneously SS ol zx es had SS Sal 2 Both STATUS codes displayed in the following order when STATUS 1 and 2 occur simultaneously S wx ul me 2 8 29 ex t Note When all of STATUS codes are eliminated or 90 seconds elapse unit returns to chamber temperature display automatically Running rate Running rate ON time ON time OFF time x 100 Condition to start measure running rate It regards as cycle start when a compressor turns on after it turned off once chamber temperature was lower than set temperature Running rate should be measured after 2 hours elapse then ON time Min The time until P3 1 in IC5 first reaches from LOW to HIGH OFF time Min The time until P3 1 in 105 reaches from HIGH to LOW Condition to calculate running rate OFF time 0 o 90 0 Note Running rate cannot be measured when a chamber temperature is higher than set temperature 4 0 C Wait until a chamber temperature is stabled Diagnosed value of overload running rate Step to F20 and input 000 1
15. 1 38 24 The following shows the temperature in thermal sensor 10000 and its resistance value urta Temp Resistance Temp RE Value C Value 9 C M0 2 45083 Y 70 E JE ACIER BR BR n 0 20 wnss so meo esor u so 12284 10 _ _ r_ o e e e En cu zo K DI j du Lu DO DU lt o e m um g c E QNO n mn uL I 5 2 089 8 iv FAT UP gt gt ONIHOLIAS y HIUYI m Aal gt m d 9 S63NSYH H 18 gt A x Hai K ao el n 019 U 55 G o a i l o UU kr n v Em ped T AV13M C 7 49199 Scu ONILUYIS ONILEYLS m 4 WE A oo nua cs TT gt 7 SSJNHYH dm a C d i DL AG E 1 SS3NUYH SNYML o go ADEZ HT a H13v3 x dd 18 m u wn gt x LN i i BEE espe spe ae a ve se ve we e m ni o let 1 6 2 Ed UR pen _ EH HIYYI SEE sood lt f lt
16. 1 HOLIAS 2000 re 22 PAS dWaL NOSN3S 1V 1871 A9 381 2 9 xs 1 YAH BNINNAM sane BOSNIS HALA H AV 138 Cr e uS IVNINYIL 31010128 95 QVO S3A0 Oz mE HOSNIS 30 25 2 A ih E SS 06 35 dial a a K a A1ddns NJAOd QN 631149 B LA 134 H Ag s s v e e t 2 1 0196949902 6NO LINO dd JI TIOHINOO END zH n l gt st pe LL NE dW3l la YSL A0S2 i gt HOLIAS 4 4 18 SNI HIMVA GG Gen zor y 917 Ade gt PEE A NO HL9Y 2 E N LO I 8 Lati 9 8 3311136 i gt ASION 3 7 889 I lol A9 07 Y1W TE A NO AMBLLYO vo HLH A 1 ag 08 81 L LSR Ie 11 o CoO a ja gt 5 re RE SNYML o go EN ADEZ S x ul c gt BEE N9 gam ea ABE A8 ul ul RINY M lt 400 IB cai us BREAKER SWITCH 5 43 0d ONIHOLIAS Wir under aan gt gt 4 a 2 OHdd SSANUYH Il dr WS DOOR SWITCH 1 m HOLIAS dela AYALIVE w
17. 1V3H a gt la no B 000000 a yg 13993 IENLIdYO wi FE 913 deS E 118 39 S Negra E oa SN asi 2505 A zo A ND P4 gt EU M31V3H YOLOMNYI ull 2 o sania n 802 HIMO 3ENLIdYI ONISNIONOI 2 UE Oe __ 49990380 divi ee paia Ro HIMVI 71 431714 I b Mea aP 651 81 A N9 11 8 ui s ii NO 1140 99504 NI NOSSBNdWOD A 1 d 9 1 avo JE ONN3HI ONT 18 15 ONILUYLS OF 151 1 dn 8 7 41 n avo ONINNNY 959990999 HOLIMS 1 SAVOL dn 3ova 9NIINVIS te EIL T 1 AVI3Y va pe 62404 TERM 0 3A0 20 5 34dW0O2 H 74 3 H 724 9 ONILHYIS 9ONIISVIS 1871 4 9 ODNINNNA AD H 3 9NIISVIS H AC250V 20 A 1081N09 uosNas 17 H31V3H AV 13M 38 u31V3H 38n11dV9 HOSN3S 1 TYNIWN3l MOSNAS 3OVOSYI 3101134 ile S 2252 QVO1 Y3A0 330 o 9 0 y QiON3S10S d31 OO NOI Ld0 HOLI AS HOGG o WIRING DIAGRAM 1 ARA 38 JWOD H 5 YIMOd ONIHOLIAS ula A 9 s v Jele i e o slv e c i elet pyje e u s s v e e 82 d END JI TIOHINOO dWJl SNO HI nat LAS L KuarLvael e y un 19 ME om var A0S2 i lt i HOLIAS O O yal
18. 68 4 E 2 P B De CN8 1 2 To Battery 3 4 To Transformer CN1 1 3 To Switching power supply CN2 To MTR 480 Option CN7 i RE 2 T 018 Ju 12 Rca 9 03 Option 1 2 To Door SW ria DIE aC I sal 5 6 To AT sensor E mE C 7 8 To Filter sensor 9 10 To Cascade R43 sensor c 9 gt 9 Ra iid ER 2 E 426 016 Tk R50 TJ Ls no CN6 3 S 025 D Ox CN9 To LCD PCB 8 8 E 026 4 i 1 2 To H comp relay 9 la 8 22 dr pers 9 8 5 5 051 N 2 R46 O IL e a lI a 028 AL DPS J35 L gi 5 Sn R25 0 2 336 Oz aA OL 02 F T 8 J27 cae R26 AI gt a cb SY a 5 023 0 4 z oss ell 5 R24 D Oo 9 CN4 5 L 2 5 B LO TP A 2 Di 1 2 To Temp control a 5 L 8 g 4 i i relay 3 4 Heater relay a D52 3 J42 Os 43 223 7 9 5 CN5 2 E a 2 1 5 To Switch PCB 3 5 o 6 7 To Buzzer PCB 8 s ISZ EA DS O CN3 To Remote alarm terminal 1 COM 2 0 3 Connections on The following shows the connections of connectors on the Temp controller Switching power supply To supply the power to PCB CN2 Network interface Remote alarm terminal 1 COM 2 N O 3 Remote alarm
19. 8 10 Chamber Compressor ON 156 temp Start tocycle min Start R Sain Start to diagnose running rate running rate E LUX N A 1 A A N et temp VY J Y JA VU gt Compressor OFF 1st Dome 8 hours stabilized Diagnosis is done with every 8 Reach to set temp Cycle run until chamber temp is higher than Set temp 4 0 Diagnosed running rate Set temp X0 9 ATX0 9 4 5 C Set temp 85 C 10 Running status will be obtained by calculating diagnosed running rate Unit determines by comparing running rate between 8 hours operation after 2 hours elapse after the unit commence cycle operation and diagnosed running rate Diagnosed running rate running rate lt 0 Normal DP52 goes off Diagnosed running rate running rate 0 Overload operation DP52 illuminates 222 Running rate cannot be obtained by calculation DP52 goes off Diagnosis is done in every 8 hours Function mode F19 F20 F21 F22 F23 F24 F25 F26 F27 F28 F29 F30 F31 F32 F33 F43 F44 F45 F49 F50 F51 F59 Display of chamber temperature Unused Setting of high temperature alarm Setting of low temperature alarm Display of battery accumulation time Setting of door alarm delay time Setting of compressor delay time Setting of service code Code 384 Reset of accumulation time Temperature sensor Zero Adjustment Cascade sensor Zero Adjustment Com
20. AS Y C gt 5 5 A D O 8 dE E Oil separator Compressor L 500 2 300 tube EX qe EX tank X gt Evacuation points Cooling unit parts lt MDF U74V U74VC gt Item Specifications L side Compressor O att 220V 50112 Type KS370J1NS 4A Code 7FB 0 M101 001 04 230 240V 50Hz Type KS370J1NS 4A1 Code 7FB 0 M101 001 05 220V 60Hz Type KS370J1NS 7A _ Code 7FB 0 M101 001 06 220V 50Hz Type KS370J1NS 4AD Code 7FB 0 M101 001 07 Refrigerant oil Ze NIUSL22SA Charged g ty 850cc Cooling system Forced air cooling partially and oil cooler Condenser YOU Type Fin and tube Cascade condenser Condenser 12 columns x 4 lines P6 35mm te Fin 88pcs Coil pipe 6 35mm Pre condenser Frame pipe Evaporator Cascade condenser Tube on sheet Capillary tube Ex capillary N 78 PSI 0 37Mpa 34 PSI G Length 3000mm 3000mm 500mm Outer diameter 2 4mm Refrigerant R 407D Charged qty 606g R 508 Charged q ty 320g E n Pentane n Pentane Ol Charged g ty 39g Charged q ty 46g 4A XH 9 Charged q ty 18g 4A XH 6 Charged q ty 58g Condensing fan 230mm 4blades Material ABS motor Type SV4 11AA5P Oilseparator 5 050252 Compressor for CCC Authorization Compressor terminals layout C Components on CN11 1 3 To Temp sensor 3 283 PEIO r830O
21. C 30 60 90 120 Time Minute 150 180 38 Chamber temp C 30 60 90 Time Minute 120 150 Chamber temp C AT30 C 50Hz 5 70 30 60 90 120 Time Minute 150 180 Via Chamber temp C AT20 C 60Hz 5 80 0 00 30 60 90 120 150 180 Time Minute Chamber temp C AT20 C 60Hz SV 70 C 0 00 30 60 90 120 150 Time Minute 40 Chamber temp C AT30 C 60Hz SV 80 C 0 00 30 60 90 120 150 180 Time Minute Chamber temp C AT30 C_60Hz_SV 70 C 0 00 30 60 90 120 150 180 Time Minute 41 Sample load test Note Following data are the reference only lt Condition gt CN o x m o H WY o Q o lt t x um o o LO H lt gt 1 z lt gt I Q Tol c o 2 Ambient temperature 30 C 1st shelf 500mlx60bottles 2nd shelf 500mlx60botiles 3rd shelf 500mlx60bottles 4th shelf 500mlx60bottles Pull down data SV 80 C
22. F24 and Press SET key to display 000 Factory default Change a value by pressing Z key pb key Press SET key to store the value and return to chamber temperature display 000 Remote alarm does not link with buzzer 001 Remote alarm links with buzzer Setting of Ring Back time Input F25 and press SET key to display 030 Factory default Setting range is 000 060 Change a value by pressing Z key key Press SET key to store the value and to return to chamber temperature display 000 Not Ring Back 010 10 minutes 020 20 minutes 030 30 minutes 040 40 minutes 050 50 minutes 060 60 minutes Display of running rate Unit Service code should be input in F06 prior to use this mode Input F26 and press SET key to display alternately F26 with XXX Present running rate Press SET key to return to chamber temperature display Display of diagnosed value for overload running rate Service code should be input in F06 prior to use this mode Input 227 and press SET key to display alternately F27 with XXX present diagnosed value of overload running rate 000 is displayed before it accumulates 480 minutes in 8H timer Factory default is 095 which is the fixed except in case diagnosed value is obtained from calculation in F20 Press SET key to return to chamber temperature display F28 F29 F30 F31 F32 F44 F50 lt Purpose gt lt Operation gt lt P
23. FF 135 5 C Action to the current AT25 C 29 5A 22 5A 22 5A Operation time 6 16sec 6 16sec 6 16sec Starting capacitor 250VAC 160MF 250VAC 100MF 250VAC 100MF Running capacitor 400VAC 25MF 400VAC 25MF 400VAC 25MF Fan motor capacitor H 1 0MF 1 0MF 1 0MF Condensing fan motor Type SV4 11AA5P SV4 11AA5P SV4 11AA5P rating 220240VAC IOW_ aa02aovac tow _ _220240 ow Capitube heater Rating 230V 11 2W 230V 11 2W 230V 11 2W a Resistance 47009 47009 47009 H Comp relay Type G4F 11123T G4F 11123T G4F 11123T Contact capacity 20A 250VAC 20A 250VAC 20A 250VAC Coil 12VDC 12VDC 12VDC Parts code 624 173 2397 624 173 2397 624 173 2397 Heater relay Type G2R 1A T G2R 1A T G2R 1A T Contact capacity 10A 250VAC 10A 250VAC 10A 250VAC Coil 12VDC 12VDC 12VDC Parts code 624 188 9299 624 188 9299 624 188 9299 Temp control relay Type G4F 11123T G4F 11123T G4F 11123T Contact capacity 20A 250VAC 20A 250VAC 20A 250VAC Coil 12VDC 12VDC 12VDC Parts code 624 173 2397 624 173 2397 624 173 2397 Switching power supply Type LDA10F 12 LDA10F 12 LDA10F 12 Rated output 12VDC 0 12VDC 0 9A 12VDC 0 9A Parts code 624 226 2053 624 226 2053 624 226 2053 Temp sensor Type SS 12 T SS 12 T SS 12 T ____1 toso _ AT sensor Type 502AT 502AT 502AT _ sm _ Filter sensor Type 502AT 502AT 502AT sqeso
24. NIL EIA DO Note This data does not represent guarantee of product performance 36 Unit C I I gt lt Distribution data Temperature of the cycle in each area SV 70 C air temperature Unit C Ambient temperature 20 C 50Hz Maximum Minimum Middle of __ Cycle Differential Maximum Minimum Left back Right front Right back Center Left front Left back Right front Right back Center Left front Left back Right front Right back Bottom area Middle area Upper area LE i 9 9 9 9 i IH ND gt gt IN dda NIN O 02 00 60 LE i i I i i i i NO At A AO AIN A Oio Nie TI co loi H oO I N 50Hz Maximum Minimum 0 Differential Maximum Minimum Left front Left back Right front Right back Center Left front Left back Right front Right back Center Left front Left back Right front Upper area Middle area Bottom area H A lt Amount of power consumption gt Amount of power consumption when driving at cycle SV 70 C Unit KWh da Ambient temperature 30 C 17 17 81 20 28 17 84 E 18 93 Note This data does not represent a guarantee of product performance 2 07 Chamber 30 60 90 Time Minute 120 150 Chamber temp
25. area measuring points 0 15 70mm H from bottom of interior 2 mm D 42 6mm W from each corner on middle shelf 22 1 1 70mm H 15 65mm H from bottom of interior 1 10mm H from lower shelf Ba lt Conditions gt Ambient temperature 20 30 C Load Unloaded lt Distribution data Temperature of the cycle in each area SV 80 C air temperature Ambient temperature 20 C 50Hz Maximum Minimum Middle of Cycle Differential Maximum Minimum H O Left back Right front Right back Center Left front Left back Right front Right back Center Left front Left back Right front Right back Bottom area Middle area Upper area I iE HH it Hit k SA A AU AGAU N NN ia wO RA OININIO N NO O N I 4 50Hz Maximum Minimum WU Differential Maximum Minimum Left front Left back Right front Right back Center Left front Left back Right front Right back Center Left front Left back Right front Bottom area Middle area Upper area H imm ETE ETE ETE i ETE i i i dA GAIL GAU AU GAU AI NO A ON DIEU Wil H A A lt Amount of power consumption gt Amount of power consumption when driving at cycle SV 80 C Unit KWh da Ambient temperature 20 C Ambient temperature 30 C 5082 ___60 2 I
26. ay FOO Input Function code by pressing key and pp key Press SET key to be function mode available Purpose Operation Purpose Operation Purpose Operation Purpose Operation Purpose Operation Purpose Operation Purpose Operation Simply passing through if entered by mistake Press SET key in FOO to return to chamber temperature display Setting of high temperature alarm Input F01 and press SET key to display 010 Factory default Setting range is 005 020 Change a value by pressing key Press SET key to store the value and to return to chamber temperature display Setting of low temperature alarm Input F02 and press SET key to display 10 Factory default Setting range is 05 20 Change a value by pressing Al key Press SET key to store the value and to return to chamber temperature display Display of battery accumulation time Input F03 and press SET key to display alternately F03 with 00 0 in case battery used for 36days or less Press SET key to return to chamber temperature display Setting of door alarm delay time Press SET key in F04 to display 002 Factory default setting range is 001 015 Change a value by pressing key and pp key Press SET key to store the value and to return to chamber temperature display Compressor turns on with delay when a power is
27. default 2 minutes When an outer door is open audible alarm sounds with the delay time Delay time can be set in F04 25 13 14 15 16 Power failure alarm delay time 3 seconds fixed When a power is failed power failure alarm is triggered with 3 seconds of delay Delay time cannot be changed Prevention for oil logging in capillary Purpose Capillary heater which attached with capillary is powered by turning both High and Low side compressor off regularly to prevent oil logging in capillary Operation Both High and Low side compressor are turned off while a capillary heater relay CN4 3 4 is turned on DP3 red lamp is lit Frequency 8 minutes in every 18 hours Setting time are changeable in F19 Timing of operation 1 9 seconds after both High and Low side compressor are turned off during cycle operation 2 Both High and Low side compressor are forced to turn off if they keep running for 60 minutes or more after they were ordered to turn off Operation of capillary heater Capillary heater is forcibly ON OFF controlled in F18 Sensor offset Offset value 1 Temperature sensor 1 3 C Changeable in 207 2 Cascade sensor 0 0 C Changeable in F08 3 Filter sensor 0 0 C 4 AT sensor 0 0 C Remote alarm terminal Operation When an alarm is occurred remote alarm contact RLY2 switches the position Normal Open Close In alarm Close Open Operation and s
28. e audible alarm When a temperature in filter sensor is higher than 60 C E06 and chamber temperature are displayed alternately audible alarm sounds intermittently and remote alarm contact activates Press BUZZER key to silence audible alarm 15 4 AT sensor Open circuit E07 When a temperature in AT sensor is lower than 60 C E07 and chamber temperature are displayed alternately audible alarm sounds intermittently and remote alarm contact activates Press BUZZER key to silence audible alarm Short circuit E08 When a temperature in AT sensor is higher than 60 C E08 and chamber temperature are displayed alternately audible alarm sounds intermittently and remote alarm contact activates Press BUZZER key to silence audible alarm 5 Battery SW is in If you press ALARM TEST key when battery switch is in off position or off position E09 battery is unconnected E09 is displayed 6 Compressor When a temperature in filter sensor is higher than 60 C E10 and chamber abnormal temperature are displayed alternately and high side compressor is forced to temperature E10 turn off to notify compressor temperature is abnormal or fan motor is locked Press BUZZER key to silence audible alarm When the temperature in filter sensor subtracts ambient temperature is equal or lower than 10 C compressor turns on 7 Error code priority No 1 Cascade sensor error E03 E04 Compressor is forced to turn off No 2 Filter sensor
29. error 205 E06 Compressor protection is uncontrollable No 3 Abnormal compressor temp E10 Compressor temporary turns off No 4 Temp sensor error E01 E02 Compressor is forced to turn on No 5 AT sensor error E07 E08 Warming up operation is done with regardless of any ambient temp Warning function Door alarm When an outer door leaves open DP54 red lamp illuminates Audible alarm sounds intermittently after 1 15 minutes Factory default 2 minutes elapse Audible alarm does not activate simultaneously with remote alarm Press BUZZER key to silence audible alarm No Ring Back High temp alarm When chamber temperature is equal or higher than set temperature high temp alarm set temperature 1 ALARM lamp and LED blink audible alarm sounds intermittently after 10 minutes delay and remote alarm activates When chamber temperature is equal or lower than set temperature ALARM lamp and LED go off audible alarm silences and remote alarm turns off When BUZZER key is pressed audible alarm silences but remote alarm output does not turn off Low temp alarm When chamber temperature is equal or lower than set temperature low temp alarm set temperature 1 ALARM lamp and LED blink audible alarm sounds intermittently after 10 minutes delay and remote alarm activates When chamber temperature is equal or higher than set temperature ALARM lamp and LED go off audible alarm silences and remote alarm turns off W
30. etting after a power is reset Settings when a power is supplied Power on reset Alarms OFF Compressors OFF Remote alarm OFF Ring Back 30 minutes Door alarm delay time 2 minutes Timers Reset 2H timer 8H timer 0 Reset Counting of compressor L OFF period Reset Setting data Read by non volatile memory Momentary power failure When a chamber temperature is lower than set temperature 10 C unit will determine as Momentary power failure is occurred 26 17 Settings after unit returns from power failure Alarms OFF Compressors OFF Remote alarm ON Door alarm delay time 2 minutes Timers Reset 2H timer 8H timer 0 Reset Counting of compressor L OFF period Reset Setting data Read by non volatile memory Lamp and display Lamp operation lt Control PCB gt DP1 DP2 DP3 DPE lt Display PCB gt 51 52 5 54 55 DP56 Examples of display Chamber temp 79 5 C Set temp 80 0 C Function F03 Service code 384 Set value 004 Key Lock L U Orange lamp Goes off High low temp alarm 15min delay sensor error power failure Illuminates Not in alarm condition Green lamp Goes off Compressor L turns off normal condition Illuminates Compressor L turns on Red lamp Goes off Capillary heater turns off normal condition Illuminates Capillary heater turns on Yellow lamp Unused Green lamp Goes off Comp
31. hen BUZZER key is pressed audible alarm silences but remote alarm output does not turn off 16 Power failure alarm Other function Auto Return Ring Back Display of sensor temperatures Battery accumulatio time Condensing fan motor accumulation time Capillary forcibly ON OFF ROM version heater If a power interrupts for 3 seconds when battery switch is in on position ALARM lamp blinks audible alarm sounds intermittently and remote alarm activates When a power returns within 3 seconds after the power interrupts microprocessor resets and unit will start operation in default settings At the time remote alarm will be active Press BUZZER key to silence audible alarm but remote alarm does not turn off Remote alarm should activate until chamber temperature is stable after the power returns from power failure When a power interrupts press BUZZER key to see chamber temperature for 5 seconds If there are not any key operations for 90 seconds in setting mode Key Lock mode and Function mode unit automatically returns to chamber temperature display To prevent someone except for an operator pressing BUZZER key when a unit is in alarming condition audible alarm sounds again after predetermined setting time elapses even if BUZZER key is pressed to silence audible alarm F12 Temperature in temp sensor Ex 80 2 C Displayed as 80 2 F13 Temperature in cascade sensor 67 Di
32. hort circuit E02 2 Cascade sensor Open circuit E03 Short circuit E04 3 Filter sensor Open circuit E05 Short circuit 206 When a temperature in temp sensor is higher than 50 C E01 and 50 C are displayed alternately and audible alarm sounds intermittently and remote alarm contact activates Compressor is forced to run Press BUZZER key to silence audible alarm When a temperature in temp sensor is lower than 170 C E02 and 170 C 180 C are displayed alternately and audible alarm sounds intermittently and remote alarm contact activates Compressor is forced to run Press BUZZER key to silence audible alarm When a temperature in cascade sensor is higher than 60 C E03 and chamber temperature are displayed alternately audible alarm sounds intermittently and remote alarm contact activates Both High and Low side compressors turn off Press BUZZER key to silence audible alarm When a temperature in cascade sensor is lower than 65 C E04 and chamber temperature are displayed alternately audible alarm sounds intermittently and remote alarm contact activates Both High and Low side compressor turn off Press BUZZER key to silence audible alarm When a temperature in filter sensor is lower than 60 C E05 and chamber temperature are displayed alternately audible alarm sounds intermittently and remote alarm contact activates High side compressor is forcibly turned off Press BUZZER key to silenc
33. isplay 001 Factory default Change to alternative value 000 or 001 by key Press SET key to revert to chamber temperature display 000 Buzzer OFF 001 Buzzer ON Display of accumulation time of condensing fan motor Input F32 and press SET key to display alternately F32 with xx x accumulation time Press SET key to return to chamber temperature display Adjustment for difference of power supply voltage Input F44 and press SET key to display 000 Factory default Setting range is 000 003 Press SET key to return to chamber temperature display Input value Adjustment of display 0 Power supply voltage is not increased 000 3 increased Setting of alarm delay time Input F50 and press SET key to display 015 Factory default Setting range is 000 015 Change a value by pressing Ia key key Press SET key to store the value and to return to chamber temperature display OA 11 Compressor control differential value Compressor H Turns on when a chamber temperature is set temperature 0 4 C Compressor L 1 Turns on when compressor H turns on and a temperature in cascade sensor is 34 C 2 Turns on after 3 minutes elapse since compressor H turned on Compressor H L Turns off when a chamber temperature is set temperature 1 4 C Interval 1 minute Interval means that a period one of compressor either H L turns on after another one was
34. mits ALARM lamp blinks audible alarm sounds intermittently after 15min passes Remote alarm contact Normal Open Normal Close Contact activates in reverse after 15min passes Allowable contact capacity Max 30VDC 2A When a door leaves open DOOR lamp illuminates after 2min passes When a condenser filter is clogged FILTER lamp illuminates and audible alarm Filter alarm sounds intermittently When a power is interrupted ALARM lamp blinks audible alarm sounds Power failure alarm intermittently and remote alarm contact outputs Remote alarm terminal 3P Max DC30V 2A N O COM Remote alarm When temp alarm or power failure alarm emits or when sensor is failed remote alarm contact activates in reverse Notice of battery life GRED battery accumulation time reaches to approx 3years BATTERY lamp illuminates lati BATTERY mn dn Na fan motor accumulation time reaches to approx 6years amp Status 1 When a temperature in AT sensor is lower than 0 C or higher than High temp alarm Low temp alarm 35 C it diagnoses that the ambient temperature is abnormal Status 2 When a power supply voltage is lower than rated voltage 15 it diagnoses that the power supply voltage is abnormal STATUS function Status 3 When a running rate of compressor L is higher than 95 it diagnoses that unit is in overloaded operation Lamps ALARM BATTERY STATUS DOOR FILTER Lamps and keys
35. nge is input and SET key is pressed it is range noticed the value cannot be set with audible alarm sounds for 1second Key Lock mode and Function mode A Key Lock mode Setting range 0 Unlock 1 Lock Setting procedure In chamber temperature display press for 5 seconds to step to Key Lock mode L_0 L_1 is displayed Factory default L 0 Change the value with Z key and press SET key to store the value in the non volatile memory 14 B Function mode Setting range Display range Setting procedure Unacceptable setting range Error codes 00 50 00 59 00 16 and 33 43 44 49 51 59 are unused In chamber temperature display press Z key for 5 seconds to step to function mode FOO is displayed Change the blinking 1 digit to desired function code with 4 0 and key Press SET key to be function code available If a value which is out of setting range is input and SET key is pressed it is noticed the value cannot be set with audible alarm sounds E01 Temp sensor is open circuited E02 Temp sensor is short circuited E03 Cascade sensor is open circuited E04 Cascade sensor is short circuited E05 Filter sensor is open circuited E06 Filter sensor is short circuited E07 AT sensor is open circuited E08 AT sensor is short circuited E09 Battery switch is in off position E10 Compressor temperature is abnormal 1 Temp sensor Open circuit E01 S
36. oad test Instruction manual Specifications 111 mStructural specifications W1010 x D870 x H2010 mm Vacuum insulation panel rigid polyurethane foamed in place Painted steel Painted steel Shelf 3shelves stainless steel Inner dimensions W848 x D533 mm Load 50kg shelf Outer door latch Outer door lock 4005 leveling leg 2pcs Monitoring hole 3places Rear upper back right bottom back left bottom Inner diameter 17mm High stage side Hermetic type Output 1100W Low stage side Hermetic type Output 1100W Low stage side Tube on sheet Sharing with interior Low stage side Cascade condenser Low stage side R 508 351 Kg Optional component Automatic temperature recorder MTR G85 Back up system CVK UB2 CVK UB2 I LCO 2 LN Inventory rack IR 220 IR 224U Independent inner door 710 mControl specifications MDF U74V MDF U74VC Temp controller Micro processor control system Temperature setting range 50 C 90 C Unit 1 C Non volatile memory When chamber temp reaches to set temp 5 C 20 C Factory default 10 C high temp alarm emits ALARM lamp blinks audible alarm sounds intermittently after 15min passes Remote alarm contact Normal Open Normal Close Contact activates in reverse after 15min passes Allowable contact capacity Max 30VDC 2A When chamber temp reaches to set temp 5 C 20 C Factory default 10 C low temp alarm e
37. pressor continuous running mode Factory test mode Unused Program running mode Factory test mode Unused PCB test mode Factory test mode Unused Display of temperature in temp sensor Display of temperature in cascade sensor Display of temperature in filter sensor Display of temperature in AT sensor Display of chamber temperature Unused Model code setting Initialization of non volatile ROM and memory Capillary heater is forcibly turned on off Setting of capillary heater ON time Factory use Setting of diagnosed value of overload running rate Factory use Communication ID set Communication mode set Display of power supply voltage Remote alarm terminal output Setting of Ring Back time Display of actual operation rate Display of diagnosed value of overload running rate Display of delay time of permission for measuring running rate 2 hrs timer Display of delay time of permission for measuring running rate 8 hrs timer ROM version is displayed Setting of filter alarm Display of condensing fan motor accumulation time Unused Adjustment of display of power supply voltage Unused Setting of alarm delay time Unused 219 Setting procedure FOO F01 F02 FO3 F04 F05 FOG Input service code 384 in FO6 prior to use function codes which are marked with To cancel service code input 000 in FO6 or turn the power off In chamber temperature display press Z key for 5 seconds to displ
38. ressor H turns off normal condition Lit Compressor H turns on Red lamp Blinks In alarm conditions Green lamp Illuminates In STATUS mode Orange lamp Illuminates In filter alarm Red lamp llluminates Door leaves open Orange lamp Illuminates Battery accumulation time is reached to 2 8 years Blinks Fan motor accumulation time is reached to 5 6 years Lock Unused DL m Sensor offset 5 0 Operation monitoring LCP Accumulation time 8H timer 135 E po 2247s Decimal point of chamber temp 80 0 Buzzer tone Alarms except door alarm Intermittent tone Key operation Click tone Set value memory Click tone Out of settable range Continuous tone 1 second Door alarm Intermittent tone with shorter than other alarms 28 Parts layout Control panel Latch Close Latch Open Fan motor Boost BOX MDF U74VC only Power transformer MDF U74VC only Filter sensor 29 lt Grille gt Filter AT sensor Power switch lt Electrical BOX gt 12P terminal Remote alarm Switching power supply Running capacitor H I3 arting capacitor H Running capacitor L Starting capacitor L s Dis Testdata Following data are the reference only Pull down data AT 30 C 40 20 Chamber temp C 0 1 2 3 4 5 6 7 8 9 10 11 Time Minute 12 13 14 15 Pull up
39. splayed as 067 F14 Temperature in filter sensor 67 Displayed as 067 F15 Temperature in AT sensor 30 C Displayed as 030 F03 Battery accumulation time is displayed Ex Accumulated 2years and 6months Displayed as 02 5 When 02 8 is shown on the display BATTERY lamp illuminates to notify battery replacement lt Reset of battery accumulation time gt Step to F06 and input 409 Press SET key to change accumulation time to 00 0 BATTERY lamp goes off F32 Condensing fan motor accumulation time is displayed Ex Accumulated 5years and 6months Displayed as 05 5 When condensing fan motor accumulation time reaches to 5 6 years BATTERY lamp blinks to notify fan motor replacement Reset of battery accumulation time Step to F06 and input 410 Press SET key to change accumulation time to 00 0 BATTERY lamp goes off F18 When you input 000 in F18 compressor turns off and capillary heater is forced to turn on When you input 000 during capillary heater turns on it comes to end to turn capillary heater on When you input 001 capillary heater never turns on but compressor turns off in every 18 hours ROM version is displayed Ex Ver 1 00 Displayed as 1 007 17 8 9 STATUS 1 STATUS lamp illuminates in the following conditions STATUS 1 When an ambient temperature is higher than 35 0 C or lower than
40. ssing key bb key Press SET key to store the value and to return to chamber temperature display Turn a power off then on to change a value to 000 but it is not stored in non volatile memory Note Service code 384 is stored in non volatile memory during battery back up To match a temperature in temp sensor with 1 2H air temperature Input service code in F06 prior to use this mode Input and press SET key to display 00 0 Factory default Setting range is 4 9 04 9 Change a value by pressing key and bb key Press SET key to store the value and to return to chamber temperature display To calibrate a temperature in cascade sensor Input service code in F06 prior to use this mode Input F08 and press SET key to display 00 0 Factory default Setting range is 9 9 09 9 Change a value by pressing key and pp key Press SET key to store the value and to return to chamber temperature display To display a temperature in temp sensor Input service code in F06 prior to use this mode Input F12 and press SET key to display alternately F12 XX X chamber temperature Press SET key to return to chamber temperature display 3 digits indication Minus is not indicated Ex 79 5 C Indicated as 79 5 To display a temperature in cascade sensor Input service code in F06 prior to use this mode Input F13 and press SET key to display alterna
41. supplied or a power returns from a power failure Input F05 and press SET key to display 003 Factory default Setting range is 003 015 Unit Minute Change a value by pressing key and pp key Press SET key to store the value and to return to chamber temperature display Input of service code Reset of accumulation time Input F06 and press SET key to display 000 Factory default Set service code to 384 by pressing and pb key Press SET key to store the value and to return to chamber temperature display lt Reset of battery accumulation time gt Input service code 384 in 206 Input 409 to reset battery accmulation time and to return to chamber temperature display Service code is cancelled lt Reset of condensing fan motor accumulation time gt Input service code 384 in 206 Input 410 to reset fan motor accumulation time and to return to chamber temperature display Service code is cancelled Ie FO8 F12 F13 F14 F15 F16 F17 lt Cancel gt lt Purpose gt lt Operation gt lt Purpose gt lt Operation gt lt Purpose gt lt Operation gt lt Purpose gt lt Operation gt lt Purpose gt lt Operation gt lt Purpose gt lt Operation gt lt Purpose gt lt Operation gt lt Purpose gt lt Operation gt Input 06 again and press SET key to display 384 Change to 000 by pre
42. tely F13 and XX X present temperature in cascade sensor Press SET key to return to chamber temperature display To display a temperature in filter sensor Input service code in F06 prior to use this mode Input F14 and press SET key to display alternately F14 and XX X present temperature in filter sensor Press SET key to return to chamber temperature display To display a temperature of AT sensor Input service code in F06 prior to use this mode Input F15 and press SET key to display alternately 15 and XX X present temperature in AT sensor Press SET key to return to chamber temperature display Simply passing through if entered by mistake Press SET key in F16 to return to chamber temperature display Initialization of non volatile memory Model code change Service code should be input in F06 prior to use this mode Input F17 and press SET key to display 00X Change a value by pressing key and pp key Press SET key to store and return to chamber temperature display Model code 003 MDF U74V U74VC 2 27 lt Initial values in non volatile memory gt Zero Adjustment value for temperature sensor 0 C Zero Adjustment value for cascade sensor 0 C Capillary heater ON time 8 minutes Auto Return 30 minutes Chamber set temperature 80 C Door alarm delay time 2 minutes High temp alarm 410 C Low temp alarm ape Compressor delay time i o Communication ID 9 minutes Communication mode
43. turned on Note Compressor L does not turn on until 1 minute elapses after compressor H turned on if a temperature in cascade sensor is lower than 34 C Chamber temp Chamber temp Set temp 0 4 C rm Set temp 0 4 C NC omp delay time omp delay time ae temp jis over 3min Chamber temp is over 3min Set temp 14 C Sl Set temp 1 4 C Over 1 min Set temp Chamber Ee Chamber 1 Set temp 0 4 C Set temp 1 4 C Cascade Cascade Temp 34 C H L comp OFF L comp H L comp OFF L comp ON H comp ON H comp ON Compressor H protection Compressor H turns off to prevent it from being warmed up that is caused by fan motor locked Filter sensor temperature Compressor H turns off when a temperature in filter sensor is higher than 60 C It will turn on again when the filter sensor temperature is lower than ambient temperature 10 C 12 Delay time Compressor delay time Factory default 3 minutes When a compressor H L is turned off during cycle operation it has a delay time to start the compressor again Delay time can be set in F05 Temperature alarm delay time Factory default 10 minutes When high or low temperature alarm is triggered buzzer and remote alarm activate with the delay time Delay time can be set in FO1 FO2 Note ALARM lamp illuminates and indication is given without delay Door alarm delay time Factory
44. urpose gt lt Operation gt lt Purpose gt lt Operation gt lt Purpose gt lt Operation gt lt Purpose gt lt Operation gt lt Purpose gt lt Operation gt lt Purpose gt lt Operation gt Display of delay time to start measuring running rate 2hrs timer 000 120 min Service code should be input in F06 prior to use this mode Input F28 and press SET key to display alternately F28 with xxx present count value for delay time to start measuring running rate Press SET key to return to chamber temperature display When a delay time expires a value reaches to 120 unit will start measuring running rate Display of delay time to start diagnosing running rate 8hrs timer 000 480 min Service code should be input in F06 prior to use this mode Input F29 and press SET key to display alternately F29 with xxx present count value for delay time to start diagnosing running rate Press SET key to return to chamber temperature display 8hours timer start counting after 2hours timer expires When a delay time expires a value reaches to 480 unit will start diagnosing running rate ROM version is displayed Service code should be input in F06 prior to use this mode Input F30 and press SET key to display alternately F30 with X XX present ROM version Press SET key to return to chamber temperature display Setting of buzzer during filter alarm occurs Input F31 and press SET key to d
45. xay AWI3H dWOD H SN 22908 N gt o e m jo e feo a orem ICS TN6278SP L 1 a 3 t U 1 1 4 4 t ali 1 1 t 1 de mou i SEL s dH PEG S L nisi dW31 indln WM ved eee dll QNO WERE UNE 007 6 1 91 ezo 4 1 4100 BOWNY 80 6 5 ONS 6 188 120 X A SS IDA dG Ee Ed __ _ EGENT REUS di EE D ELA N3dQ 3201 a ae R 4 2 gt 35072 2201 ONS PRETI lt lt 4 4 lt 4 QNE SCARTI ab Se HE x LUN CUL a GNYIS NS A A A ah A gt La a ON C 6 KOC GE C CO i pie 17 997 ii ee te ER 6 50 0185 510 En 8 RER EE SEE eta a ENE a 50 0185 94 En ID 2 50 0185 80 la SEENE 477 481 0 529 474140 Ped 34170 EZ J O 222 34 40 122 2 0 o 2 me mo Me sm m Gu a me a e ELLE LL Fon perm IT T N 01 o H _ O um TE toons T 805835 vi 10 9 09487

Service Manual MDF-U74V MDF-U74VC

Contents

Download Pdf Manuals

Related Search

Related Contents