Sanyo MDF-U55V Service manual

Download

Service Manual

Ultra-Low Temperature Freezer

FILE No.

MDF-U55V

SANYO Electric Co., Ltd. Biomedical Business Division

SM9910253

Effective models

This service manual is effective for following model.

Model Product code Voltage and Frequency

MDF-U55V 823 029 54 230/240V 50Hz

Contents

Page

䞉 Specifications

- Structural specifications

- Control specifications

- Performance specifications

䞉 Dimensions

䞉 Refrigeration circuit

䞉 Cooling unit parts

䡡 Components on PCB

䞉 Connection on PCB

䞉 Electric parts

䞉 Specification of sensor

䞉 Wiring diagram

䞉 Circuit diagram

䞉 Control specifications

䞉 Parts layout

---------------------------------------------- 1

---------------------------------------------- 4

---------------------------------------------- 5

---------------------------------------------- 6

---------------------------------------------- 7

---------------------------------------------- 8

---------------------------------------------- 9

---------------------------------------------- 10

---------------------------------------------- 11

---------------------------------------------- 12

---------------------------------------------- 13

---------------------------------------------- 28

䞉 Test data

- Pull-down & Pull-up data

- Pull-down temperatures

- Pull-down pressure

- Pull-down current-input

- Temperature uniformity (17points measured)

- Amount of power consumption data

- Cycle operation data

- Sample load test

䞉 Instruction manual

---------------------------------------------- 30

---------------------------------------------- 39

Specifications

Structural specifications

Item Specifications

Name Ultra-Low Temperature Freezer Model MDF-U55V External dimensions Internal dimensions Effective capacity 519 L Exterior Painted steel Interior Painted steel Outer door 1 door, painted steel Inner door 2 doors, ABS resin panel with stainless frame

W 770 㽢 D 870 㽢 H 1990 (mm) W 630 㽢 D 600 㽢 H 1380 (mm)

Insulation

Compressor

Evaporator

Condenser

Refrigerant Refrigerating oil Ze-NIUSL22SA Oil additive n-pentane Oil separator SPK-0S02S2

Shelf

Outer door latch 1pc Outer door lock 1pc Caster Access port Refrigeration circuit Cascade system Power supply 230/240V, 50Hz, Single phase Weight 288 kg

Battery

Accessories 1 set of key, 1 scraper

Optional components

VIP䠄Vacuum insulation panel䠅䠇Rigid polyurethane foamed-in place

High stage side䠖Hermetic rotary type, Output: 450W

Low stage side䠖Hermetic reciprocating type, Output: 750W

High stage side: Cascade condenser

Low stage side: Tube on sheet type

High stage side䠖Fin and tube type

Low stage side䠖Cascade condenser

High stage side䠖R-404A Low stage side䠖R-508

Stainless steel, 3 shelves (adjustable)

Inner dimension䠖W 608 㽢 D 535 (mm) Load䠖50 kg/shelf

4pcs 䠄leveling leg 2pcs. in front side䠅

䃥17mm, 3 locations (back, bottom left, bottom right)

Nickel-metal-hydride battery, 6VDC, 1100mAh,

Auto-rechargeable (5HR-AAC)

Inventory rack (IR-220U, IR-224U), Drawer (MDF-50R), Temperature recorder (MTR-G85/MTR-85H) Back-up system (CVK-UB2): LCO Interface board (MTR-480) Data acquisition system (MTR-5000)

, (CVK-UBN2): LN2

- 1 -

Control specifications

Item Specifications

Temperature controller

Temperature setting range Temperature display Temperature sensor

High temperature alarm

Low temperature alarm

Filter alarm FILTER lamp illuminates and buzzer sounds intermittently.

Microcomputer, key-pad input Non-volatile memory

-50䉝~-90䉝 (Unit: 1䉝) LED (Unit: 1䉝) Pt. 1000䃈

When chamber temperature deviates from set temperature+5䉝䡚+20䉝 (Factory default:+10䉝), ALARM lamp blinks and buzzer sounds after 15 minutes of delay.

Remote alarm contact: Normal Open, Normal close Rated (max) 30VDC, 2A Turns over after 15minutes of delay

When chamber temperature deviates from set temperature-5䉝䡚-20䉝 (Factory default:-10䉝), ALARM lamp blinks and buzzer sounds after 15 minutes of delay.

Remote alarm contact: Normal Open, Normal close Rated (max) 30VDC, 2A Turns over after 15minutes of delay

Door alarm

Power failure alarm

Remote alarm

Notice of battery life

Notice of condensing fan motor life

STATUS function

Control panel

Key Lock

Self diagnosis function

When a door is open, DOOR lamp illuminates after predetermined delay time elapses. (Factory default: 2minutes, Range:1~15minutes)

ALARM lamp blinks and buzzer sounds intermittently. Remote alarm activates.

Allowable contact capacity䠖DC30V 2A䚸N.C.-COM䠈N.O.-COM When temperature alarm or power failure alarm is occurred or any sensor is failed, remote alarm contact turns over. BATTERY lamp illuminates when battery accumulation time (2.8 years) expires. BATTERY lamp blinks when condensing fan motor accumulation time (5.6 years) expires.

zNotice of Battery/condensing fan motor life zAbnormal power supply voltage zAbnormal ambient temperature zOverloaded operation

Alarm lamp: ALARM Filter check lamp: FILTER Battery check lamp: BATTERY Status monitor lamp: STATUS Door check lamp: DOOR Buzzer stop key: BUZZER Alarm test key: ALARM TEST Status key: STATUS SET䠖Set key : Digit shift key

: Numerical value shift key Press digit shift key for 5 seconds to activate Key Lock mode.

L0: Unlock䚸L1: Lock When temp. sensor or filter sensor or cascade sensor or AT sensor is

failed; Error code is displayed, ALARM lamp illuminates, buzzer sounds and remote alarm is active.

- 2 -

Item Specifications

Compressor protection

Compressor delay time

Performance specifications

Item Specifications

Cascade sensor temperature is higher than 䠉12䉝, L side compressor turns off. Cascade sensor temperature is lower than 䠉34䉝, L side compressor turns on. Overload relay When filter sensor temperature is higher than +60䉝, H side compressor turns off. (Substitution for pressure switch) Range: 3~15 minutes (Unit: 1minute) It is not settable delay time individually between H side compressor and L side compressor.

Maximum cooling performance

Temperature control range

Power source 230V, 50Hz 240V, 50Hz

Rated power consumption 650W 700W

Noise level 47dB <A> (background noise; 20dB)

Maximum pressure 2030 kPa

-86䉝 at the center of the chamber 䠄AT䠖30䉝䚸No load䠅

䠉50䉝 to 䠉86䉝䠄AT䠖30䉝䚸No load䠅

- 3 -

Dimensions

(Innerdimensionsoftray)

Top

exitofpowercord

(Backside)

Front

Side

- 4 -

Refrigeration circuit

Framepipe

Pre-condenser

EXtank

CompressorL

Capillarytube

(EX)

CompressorH

Pre-condenser

Cascadesystem

Condenser

DryerH

Checkvalve

Accumulator

Pre-condenser

Suctionheat

exchanger

CapillarytubeH

Oilseparator

Cascadecondenser

Header

Hside

Lside

- 5 -

DryerH

Evaporator

CapillarytubeL

Cooling unit parts

Parts descriptions

Compressor

Power supply Single phase 230/240V, 50Hz Single phase 230/240V, 50Hz

Refrigeration oil

Cooling system

Condenser (type) Fin and tube type Cascade condenser

Condenser

Pre-condenser

Frame pipe

Evaporator 䠄Type䠅

Accumulator

Capillary tube

Resistance 0.765MPa 0.343MPa 34psi

Length L 2000 mm 2500 mm 500 mm

Outside diameter OD

Inside diameter ID

Refrigerant

Dryer Condensing fan

Condensing fan motor

Kind䠖Ze-NIUSL22SA

Forced air cooling 䠄Partially䠅,

Pre-condenser (DSH)

P6.35㽢3lines㽢12 columns,

Shell and tube, 䃥80 mm

R-404A Charged q’ty䠖 432g

n-Pentane Charged q'ty䠖 18g

Type: Dry core (D-SM) 䃥230mm, 4pcs. wings

H side L side

Type䠖C-1RN45L5A

Code䠖802 022 15

Charged q’ty䠖230cc

Fin 38pcs. W250 mm

䃥4.76 mm

Cascade condenser

䃥38 mm

Ex. capillary

䃥2.0 mm 䃥2.0 mm 䃥2.4 mm 䃥0.9 mm 䃥0.9 mm 䃥1.2 mm

Material䠖ABS

Type䠖SV4-11AA5P

Specifications

Forced air cooling 䠄Partially䠅,

R-508 Charged q’ty䠖370g

(TP5R3)

n-Pentane Charged q'ty䠖 53g

Type: 4A-XH-6 Charged q’ty䠖58g

Type䠖KS240J1NS-4A1

Code䠖7FB-0-M101-011-05

Kind䠖Ze-NIUSL22SA

Charged q’ty䠖850cc

Oil cooler (OC)

Coil pipe (䃥6.35mm)

䇷䇷

Tube on sheet type

䃥9.52 mm

䇷

- 6 -

Components on PCB



CN3

Remotealarmterminal

#1COM

#2N.O.

#3N.C.

CN5

#1-#5SwitchPCB

#6-#7BuzzerPCB

CN4

#1-#2Temp.controlrelay

#3-#4Heaterrelay

#1-#2

Hcomprelay

CN9

MTR-480(option)

MTR-L03(option)

CN２

DisplayPCB

CN6

#1-#2Doorswitch

#5-#6ATsensor

#7-#8Filtersensor

CN7

#9-#10Cascadesensor

#1-#3

Switchingpowersupply

CN1

CN8

#1-#2Battery,Batteryswitch

#3-#4Powertransformer

- 7 -

CN11

#1-#3

Temp.sensor



Connections on PCB



The following shows the connections of connectors on the Temp. controller PCB.

Connector Connects to Usage

CN1 Switching power supply To supply the power to PCB.

CN2 Communication kit To connect to MTR-480/MTR-L03(option).

Remote alarm terminal

#1: COM.

CN3

#2: N.O.

#3: N.C.

#1-#2㸸Temp. control relay

CN4

#3-#4㸸Heater relay

#1-#5: Switch PCB

CN5

#6-#7: Buzzer

CN6 Display PCB To connect to each LED

#1-#2: Door switch

#5-#6: AT sensor

CN7

#7-#8: Filter sensor

#9-#10: Cascade sensor

#1-#2: Battery㸦#1:6V #2:Battery switch㸧

CN8

#3-#4: Transformer

Remote alarm contact outputs.

In normal condition, open between #1 and #2

and closed between #1 and #3.

To control chamber temperature (12VDC)

To supply the power to Cap. tube heater

(12VDC)

To connect to each switch

To connect to buzzer

To control door open and close

To detect ambient temperature

To detect temperature in condenser outlet pipe.

To detect temperature in cascade.

To supply the power during power failure

To supply the power to PCB.

CN9 #1-#2: H. Comp. relay To control compressor H ON/OFF (12VDC)

CN10 Unused

CN11 #1-#3: Temp. sensor To detect chamber temperature.

- 8 -

)

䃈

)

䃈

Electric Parts

MDF-U55V

Compressor (H

Rated voltage (50/60Hz

Winding resistance C-R(Main) 5.95

C-S(Aux) 14.76

Compressor (L

Rated voltage (50/60Hz

Winding resistance C-R(Main) 2.7

C-S(Aux) 4.9

Starting relay (H)

Pick up voltage 185~217VAC

Drop out voltage 60~120VAC

Starting relay (L)

Pick up voltage 205~235VAC

Drop out voltage 110VAC

Overload relay (L)

Action to the temp. (No current) ON:120䉝 OFF:61䉝

Action to the current (AT25Υ) 20.5A

Operation time 6~16sec. Starting capacitor (H) Rating 40uF, 300VAC Starting capacitor (L) Rating 160uF, 250VAC Running capacitor (H) Rating 15uF, 400VAC Running capacitor (L) Rating 12uF, 370VAC Fan motor capacitor Rating Condensing fan motor

Capitube heater

Resistance (AT25䉝) 4700ȍ

Temp. control relay

Contact capacity 20A 250VAC

Heater relay

Contact capacity 10A 250VAC

H. comp relay

Contact capacity 20A 250VAC

Switching power supply

Battery

Temperature sensor

Cascade sensor

Filter sensor

AT sensor

Battery switch

Breaker switch

Door switch

Transformer

Noise filter

Type C-1RN45L5

Cod

Type KS240J1NS-4A1

Cod

Type AMVL-300A

Type AMVL-300TA

Type MST16AJ120/61-9201

Type SV4-11AA5P Rating 220-240V, 10W Rating 11.2W, 230V

Type G4F-11123T

Coil 12VDC

Type G2R-1A-T

Coil 12VDC

Type G4F-11123T

Coil 12VDC Type ZWS10-12/J Input

Output 12VDC, 0.85A

Type 5HR-AAC-VIO3

Rating 6VDC 1100mAH

Type THC-663

Rating PT1000ȍ

Type 502AT-1

Rating 5Kȍ(25䉝)

Type 502AT-1

Rating 5Kȍ(25䉝)

Type 502AT-1

Rating 5Kȍ(25䉝)

Type SLE6A2-5

Rating 250VAC, 4A

Model BAM215131

Rating 250V, 15A

Type SDKNA2070

Rating 5VDC, 5mA

Type S41-U097P

Primary 115V, 230

Rating 9VAC, 0.46

Model RSAN-2020

Rating 250VAC, 20A

AC230/240V, 50Hz

802 022 15

220-240V, 50H

7FB-0-M101-011-05

230/240V,50H

100-240VAC

- 9 -

Specifications of sensor

The following shows the temperature in thermal sensor (502AT-1) and its resistance value.

Temp.

(C)

Resistance

(kȐ)

Temp.

(C)

Resistance

(kȐ)

Temp.

(C)

Resistance

(kȐ)

Temp.

(C)

Resistance

(kȐ)

㸫50

㸫49

㸫48

㸫47

㸫46

㸫45

㸫44

㸫43

㸫42

㸫41

㸫40

㸫39

㸫38

㸫37



154.5

145.9

137.8

130.2

123.1

116.5

110.2

104.4

98.87

93.70

88.85

84.18

79.80

75.67

㸫36

㸫35

㸫34

㸫33

㸫32

㸫31

㸫30

㸫29

㸫28

㸫27

㸫26

㸫25

㸫24

㸫23

71.80

68.15

64.71

61.48

58.43

55.55

52.84

50.23

47.77

45.45

43.26

41.19

39.24

37.39

㸫22

㸫21

㸫20

㸫19

㸫18

㸫17

㸫16

㸫15

㸫14

㸫13

㸫12

㸫11

㸫10

㸫5

35.65 0 13.29

33.99 5 10.80

32.43 10 8.84

30.92 15 7.20

29.50 20 6.01

28.14 25 5.00

26.87 30 4.17

25.65 35 3.50

24.51 40 2.96

23.42 45 2.51

22.39 50 2.13

21.41 55 1.82

20.48 60 1.56

16.43 65 1.35



The following shows the temperature in thermal sensor (PT1000ȍ) and its resistance value.

Temp.

(C)

㸫140

㸫130

㸫120

㸫110

㸫100

㸫90

㸫80

Resistance

(Ȑ)

450.83

491.47

531.83

571.92

611.76

651.38

690.78

Temp.

(C)

㸫70

㸫60

㸫50

㸫40

㸫30

㸫20

㸫10

Resistance

(Ȑ)

729.99 0 1000.0

769.02 10 1038.0

807.87 20 1076.0

846.58 30 1113.8

885.13 40 1151.4

923.55 50 1189.0

961.84 60 1226.4

Temp.

(C)

Resistance

(Ȑ)

- 10 -

Wiring diagram

- 11 -

Circuit diagram

- 12 -

㻌

Control specifications

1. Key and Switch

BUZZER : 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.

ALARM TEST : When this key is pressed, unit steps into Alarm Test mode with ALARM lamp

flashes, audible alarm sounds, digital LED is disappeared and remote alarm is active. By Auto Return function, unit will return to normal operation after approx. 90seconds elapse. When an alarm test is performed and a battery switch is in off position, “E09” will flash.

SET : Press this key to activate setting mode and 2

Press this key again to store a value to be changed.

STATUS : Press this key when STATUS lamp illuminates to show status code (‘-- 1’, ‘--2’

and ‘--3’) on the display.

(Digit shift key)

(Numerical value shift key)

2. Temperature control

Setting range : Display range : -180~50

How to set chamber

temperature:

Unacceptable setting

range :

3. Key Lock mode

Setting range : 0 (Unlock), 1 (Lock) How to set Key Lock: In chamber temperature display, press key for 5 seconds to step to Key

4. Function mode

Setting range : 00~50 Display range : 00~59 00, 16 and 33~43, 44~49, 51~59 are unused. How to set Function

mode :

Unacceptable setting

range :

Every time press this key to blink and change a digit among 1 flexibly. If this key is pressed for 5 seconds when a chamber temperature is displayed, Key Lock is active and “L_0” is displayed.

Every time press this key to blink a digit and increase numeric value one by one. If this key is pressed for 5 seconds when a chamber temperature is displayed, Function mode is active and “F00” is displayed.

-50䉝~-90䉝

Press SET key and change a value by pressing key and key. Press SET key again to memorize the value to be changed. The value cannot be changed and audible alarm sounds for 1second, if a value which is out of setting range is input and SET key is pressed.

Lock mode. (“L_0” or “L_1” is displayed. Factory default: L_0) Change a value by pressing key and press SET key to memorize the value to be changed.

In chamber temperature display, press key for 5 seconds to step㻌 to Function mode and F00 is displayed. Change a blinking 1

The value cannot be changed and audible alarm sounds for 1second, if a value which is out of setting range is input and SET key is pressed.

digit by pressing key and key and press SET key.

digit will blink on the display.

, 2nd and 3rd digit

- 13 -

5. Error codes

(1) Temp. sensor

Open circuit (E01):

Short circuit (E02):

(2) Cascade sensor

Open circuit (E03):

Short circuit (E04):

(3) Filter sensor

Open circuit (E05):

Short circuit (E06):

(4) AT sensor

Open circuit (E07):

(5) Battery SW is in

off position (E09):

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

Short circuit(E08):

When a temp. sensor temperature is higher than 50䉝, E01 and 50䉝 are displayed alternately and audible alarm sounds intermittently and remote alarm contact is active. Compressor is forcible to turn on. Press BUZZER key to silence audible alarm. When a temp. sensor temperature is lower than -170䉝, E02 and -170䉝~

-180䉝 are displayed alternately and audible alarm sounds intermittently and remote alarm contact is active. Compressor is forcible to turn on. Press BUZZER key to silence audible alarm.

When a temperature in cascade sensor is lower than -65䉝, E03 and chamber temperature are displayed alternately, audible alarm sounds intermittently and remote alarm contact is active. Both High and Low side compressors are turned off. Press BUZZER key to silence audible alarm. When a temperature in cascade sensor is higher than 60 䉝 , E04 and chamber temperature are displayed alternately, audible alarm sounds intermittently and remote alarm contact is active. Both High and Low side compressor are turned off. Press BUZZER key to silence audible alarm.

When a filter sensor temperature is lower than -60䉝, E05 and chamber temperature are displayed alternately, audible alarm sounds intermittently and remote alarm contact is active. High side compressor is forcible to turn off. Press BUZZER key to silence audible alarm. When a temperature in filter sensor is higher than 130䉝, E06 and chamber temperature are displayed alternately, audible alarm sounds intermittently and remote alarm contact is active. Press BUZZER key to silence audible alarm.

When a temperature in AT sensor is lower than -60䉝, E07 and chamber temperature are displayed alternately, audible alarm sounds intermittently and remote alarm contact is active. Press BUZZER key to silence audible alarm. When a temperature in AT sensor is higher than 60䉝, E08 and chamber temperature are displayed alternately, audible alarm sounds intermittently and remote alarm contact is active. Press BUZZER key to silence audible alarm.

If you press ALARM TEST key when battery switch is in off position or battery is unconnected, E09 is displayed.

- 14 -

(6)Compressor

abnormal temperature (E10):

(7) Error code priority

6. Warning functions

Door alarm : When an outer door leaves open, DP54 (red lamp) illuminates. Audible alarm

High temp. alarm : When chamber temperature is equal or higher than set temperature + high

Low temp. alarm : When chamber temperature is equal or lower than set temperature - low

Power failure alarm : If a power failure is occurred or a power interrupts for 3 seconds when

7. Other functions

Auto Return : If there are not any key operations for 90 seconds when setting mode or Key

Ring Back : Audible alarm will sound after predetermined setting time elapses if it is

No.1: Cascade sensor error (E03, E04) … Compressor is forcible to turn off No.2: Filter sensor error (E05, E06) … Impossible to protect compressor No.3: Abnormal compressor temperature(E10) … Compressor temporary turns off No.4: No.5:

When a temperature in filter sensor is higher than 60䉝, E10 and chamber temperature are displayed alternately and high side compressor is forcibly turned off to notify compressor temperature is abnormal or fan motor is locked. Press BUZZER key to silence audible alarm. When the temperature obtained from filter sensor temperature subtracts ambient temperature, is equal or lower than 10䉝, compressor will turn on.

Temp. sensor error (E01, E02) … Compressor keeps turning on AT sensor error (E07, E08) … Warming-up operation is forcible to be active

sounds intermittently after 1~15 minutes (Factory default: 2 minutes) elapse. Audible alarm is not active simultaneously with remote alarm. Press BUZZER key to silence audible alarm.(Ring Back is not active)

temp. alarm set temperature +1, ALARM lamp and LED flash, audible alarm sounds intermittently and remote alarm is active after 10 minutes elapse. When chamber temperature is equal or lower than set temperature, ALARM lamp and LED go off, audible alarm silences, and remote alarm turns off. Press BUZZER key to silence audible alarm, but not to activate remote alarm simultaneously.

temp. alarm set temperature -1, ALARM lamp and LED flash, audible alarm sounds intermittently and remote alarm is active after 10 minutes elapse. When chamber temperature is equal or higher than set temperature, ALARM lamp and LED go off, audible alarm silences, and remote alarm turns off. Press BUZZER key to silence audible alarm, but not to activate remote alarm simultaneously.

battery switch is in on-position, ALARM lamp blinks, audible alarm sounds intermittently and remote alarm is active. Press BUZZER key to display chamber temperature for 5 seconds. When a power returns within 3 seconds since the power was interrupted, microprocessor resets in default settings. Remote alarm is not active. Press BUZZER key to silence audible alarm, but remote alarm keeps active. Remote alarm will keep active until chamber temperature is stabled after the power returns from power failure. When a power interrupts, press BUZZER key to see chamber temperature for 5 seconds.

Lock mode or Function mode is active, unit automatically returns to chamber temperature display.

silenced by someone pressing BUZZER key.

- 15 -

Display of sensor

temperature:

Battery accumulation

time :

Condensing fan

motor accumulation time :

Forcible operation of

capillary heater:

ROM version : F30: Display of current ROM version

8. STATUS function

(1) Display of STATUS code

STATUS lamp illuminates in the following conditions. STATUS code will be displayed by pressing STATUS key when STATUS lamp illuminates.

STATUS 1: When an ambient temperature is higher than 35.0䉝, or lower than 0䉝, ‘--1’

STATUS 2: When a power supply voltage is lower than 2.01VDC between TP7 and TP3,

STATUS 3: When running rate is higher than 95%, ‘--3’ is appeared on the display.

F12: 3 digits display of temp. sensor temperature (Unit:0.1䉝) (Ex. -80.2䉝㻌䊻㻌 Displayed as ‘80.2’) F13: 3 digits display of cascade sensor temperature (Unit:1䉝) (Ex. 67䉝㻌䊻㻌 Displayed as ‘067’) F14: 3 digits display of filter sensor temperature (Unit:1䉝) (Ex. 67䉝㻌䊻㻌 Displayed as ‘067’) F15: 3 digits display of AT sensor temperature (Unit:1䉝) (Ex. 30䉝㻌䊻㻌 Displayed as ‘030’)

F03: 3 digits display of battery accumulation time (Ex. 2years and 6months accumulated 䊻㻌 Displayed as ‘02.5’) When battery accumulation time (2years and 8months, ’02.8’) expires,

BATTERY lamp illuminates.

Step to F06 and change a value to ‘409’. Press SET key to reset accumulation time to ’00.0’. BATTERY lamp goes off.

F32: 3 digits display of Condensing fan motor accumulation time (Ex. 5years and 6months accumulated 䊻 Displayed as ’05.5’) When condensing fan motor accumulation time (5years and 6monts,

‘05.6’) expires, BATTERY lamp flashes.

<Reset of battery accumulation time> Step to F06 and change a value to ‘410’. Press SET key to reset

accumulation time to ’00.0’. BATTERY lamp goes off.

F18: Compressor is turned off and capillary heater is forcibly to turn on when

a value is changed to ‘000” in F18.

Capillary heater is forcibly to turn off once inputting ‘000’ again during a

power conducting to capillary heater.

It is impossible to conduct a power to capillary heater when a value is

changed to ‘001’.

Only compressor will be turned on every 18 hours.

(Ex. Ver. 1.00 䊻㻌 Displayed as “1.00”)

is appeared on the display.

‘-- 2’ is appeared on the display.

- 16 -

(2) Display sequence of STATUS code

(Ex.1) When all of three STATUS codes occur simultaneously;

‘ --‘ => ‘-- 1’ => ‘-- 2’ => 㻌 ‘-- 3’ => ‘--1’ …

(Ex.2) When STATUS 1 and 2 occur simultaneously;

‘ --‘ => ‘-- 1’ => ‘-- 2’ => 㻌 ‘-- 2’ => ‘--1’ …

When it elapses 90 seconds or when a unit returns from STATUS condition, chamber temperature will be appeared on the display.

9. Running rate

Running rate: Obtained from (ON time / (ON time + OFF time)) x 100%

Definition: “ON time” means the reach time until P3.1 in IC5 is changed “Low” to “Hi”

“OFF time” means the reach time until P3.1 in IC5 is returned “Hi” to “Low”

Condition to measure running rate:

Cycle operation will start when a compressor turns on for the first time after it was turned off when chamber temperature was lower than set temperature. Running rate will be measured after 2 hours elapse since the unit was stabilized in cycle operation.

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 IC5 reaches from HIGH to LOW

Condition to calculate running rate:

ON time OFF time Running rate

= 0 = 0 > 0 = 0 = 0 > 0 > 0 > 0 0 ~ 100%

Impossible to calculate (0%)

Note) Running rate cannot be measured when a chamber temperature is higher than set

temperature + 4.0䉝.

Measuring should be done until a chamber temperature is stabilized.

Diagnosed value of overload running rate:

Step to F20 and input ‘000’.

Chamber temperature

Compressor turns off for the first time Chamber temperature reaches set tem

Compressor turns on for the first time. Start to cycle run

2 hours 8 hours

erature.

Start to measure running rate

Unit is stabilized in cycle operation.

Start to measure running rate

Set

Running rate is measued every 8 hours until chamber temperature is over set temperature+4.0䉝

- 17 -

10. Function mode

F00 Display of chamber temperature (Unused)

F01 Setting of high temperature alarm F02 Setting of low temperature alarm F03 Display of battery accumulation time F04 Setting of door alarm delay time F05 Setting of compressor delay time F06 Setting of service code (Code: 384), Reset of accumulation time F07 * Temperature sensor Zero Adjustment F08 * Cascade sensor Zero Adjustment

F09 * Compressor continuous running mode … Factory test mode (Unused) F10 * Program running mode … Factory test mode (Unused) F11 * PCB test mode … Factory test mode (Unused)

F12 * Display of temperature in temp. sensor F13 * Display of temperature in cascade sensor F14 * Display of temperature in filter sensor F15 * Display of temperature in AT sensor F16 * Display of chamber temperature (Unused) F17 * Display of model code and initialization of non-volatile memory F18 * Forcible operation for capillary heater F19 * Setting of capillary heater ON time … Factory use F20 * Setting of diagnosed value of overload running ratio … Factory use

F21 Setting of communication ID F22 Setting of communication mode F23 * Display of power supply voltage

F24 Remote alarm terminal output F25 Setting of Ring Back time

F26 * Display of actual operation ratio F27 * Display of diagnosed value for overload running ratio F28 * Display of delay time of permission to measure running rate (2 hrs timer) F29 * Display of delay time of permission to measure running rate (8 hrs timer) F30 * Display of ROM version F31 * Setting of filter alarm F32 Display of condensing fan motor accumulation time F33~F43 Unused F44 * Adjustment of power supply voltage display F45~F49 Unused F50 Setting of alarm delay time F51~F59 Unused

Setting

procedure:

Diagnosed running rate =(-(Set temp.)X0.9)+((ATX0.9-4.5䉝))-((Set temp.+85䉝) / 10)) You can know running status by the calculation for diagnosed running rate. Diagnosis is done by comparing running rate for 8 hours operation after 2 hours elapses since unit started cycle operation, with diagnosed running rate. (Diagnosed running rate – running rate) < 0 … Normal (DP52 goes off) (Diagnosed running rate – running rate) 䍻0 … Overload operation (DP52 illuminates) 222 = Running rate cannot be obtained by calculation. (DP52 goes off) Diagnosis is done in every 8 hours.

Input service code ‘384’ in F06 prior to use function codes which are marked with *. To cancel service code, input “000” in F06 or turn the power off.

In chamber temperature display, press key for 5 seconds to display “F00”. Input Function code by pressing key and key. Press SET key to be function mode available.

- 18 -

F00: <Purpose> Simply passing through if entered by mistake. <Operation> Press SET key in “F00” display to return to chamber temperature

display.

F01: <Purpose> Setting of high temperature alarm <Operation> Input F01 and press SET key to display “015” (Factory default).

Setting range is ‘005~020’. Change a value by pressing key. Press SET key to memorize the value and to return to chamber temperature display.

F02: <Purpose> Setting of low temperature alarm <Operation> Input F02 and press SET key to display “-10” (Factory default).

Setting range is “-05”~“-20”. Change a value by pressing key. Press SET key to memorize the value and to return to chamber temperature display.

F03: <Purpose> Display of battery accumulation time <Operation> 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.

F04: <Purpose> Setting of door alarm delay time <Operation> Press SET key in “F04” to display ‘002’ (Factory default).

setting range is ‘001’~’015’. Change a value by pressing key and key. Press SET key to memorize the value and to return to chamber temperature display.

F05: <Purpose> Compressor turns on with delay when a power is supplied or a power

returns from a power failure.

<Operation> 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 key. Press SET key to memorize the value and to return to chamber temperature display.

F06: <Purpose> Input of service code and reset of accumulation time <Operation> Input F06 and press SET key to display ‘000’ (Factory default).

Set service code to “384” by pressing key and key. Press SET key to memorize the value and to return to chamber

temperature display. <Reset of battery accumulation time> Input service code ‘384’ in F06.

Input ‘409’ to reset battery accmulation time and to return to chamber

temperature display. (Service code is cancelled) <Reset of condensing fan motor accumulation time> Input service code ‘384’ in F06.

Input ‘410’ to reset fan motor accumulation time and to return to

chamber temperature display. (Service code is cancelled) <Cancel> Input F06 again and press SET key to display ‘384’.

Change to ‘000’ by pressing key and key.

Press SET key to memorize 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.

- 19 -

F07: <Purpose> To match a temp. sensor temperature with 1/2H air temperature

(Zero calibration of temp. sensor)

<Operation> Input service code in F06 prior to use this mode.

Input F07 and press SET key to display ‘00.0’ (Factory default). Setting range is ‘-4.9’~’04.9’. Change a value by pressing key and key. Press SET key to memorize the value and to return to chamber temperature display.

F08: <Purpose> To calibrate a cascade sensor temperature <Operation> 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 key. Press SET key to memorize the value and to return to chamber temperature display.

F12: <Purpose> To display a temp. sensor temperature <Operation> Input service code in F06 prior to use this mode.

Input F12 and press SET key to display alternately F12 and “XX.X” (chamber temperature). Press SET key to return to chamber temperature display. Decimal point is displayed in the 3 digits indication, but minus “-“ is not displayed. Ex) “-79.5䉝” 䊻㻌 Indicated as “79.5”

F13: <Purpose> To display a cascade sensor temperature <Operation> Input service code in F06 prior to use this mode.

Input F13 and press SET key to display alternately F13 and “XXX” (present temperature in cascade sensor). Press SET key to return to chamber temperature display.

F14: <Purpose> To display a filter sensor temperature <Operation> Input service code in F06 prior to use this mode.

Input F14 and press SET key to display alternately F14 and “XXX” (present temperature in filter sensor). Press SET key to return to chamber temperature display.

F15: <Purpose> To display an AT sensor temperature <Operation> Input service code in F06 prior to use this mode.

Input F15 and press SET key to display alternately F15 and “XXX” (present temperature in AT sensor). Press SET key to return to chamber temperature display.

F16: <Purpose> Simply passing through if entered by mistake <Operation> Press SET key in “F16” to return to chamber temperature display.

F17: <Purpose> Display of model code and initialization of non-volatile memory <Operation> 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. Press SET key to memorize and return to chamber temperature display.

Model code ‘008’: MDF-U55V

- 20 -

<Initial values in non-volatile memory> Zero Adjustment value for temperature sensor

Zero Adjustment value for cascade sensor Capillary heater ON time Auto Return Chamber set temperature Door alarm delay time High temp. alarm Low temp. alarm Compressor delay time Communication ID Communication mode Key Lock Linkage between remote alarm and buzzer Buzzer tone for filter alarm Diagnosed value for STATUS 3

F18: <Purpose> Forcible operation for capillary heater <Operation> Service code should be input in F06 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 key and key. Press SET key to memorize the value and return to chamber temperature display. 000: Capillary heater is forcibly turned on, or Capillary heater is forcibly turned off 001: Capillary heater is inoperative

F21: <Purpose> Setting of serial communication ID <Operation> Input F21 and press SET key to display ‘000’ (Factory default).

Setting range is ‘001’ ~ ‘255” by pressing key and key. Press SET key to return to chamber temperature display.

Data

Display Unit

Chamber temperature -180.0 ~ +50.0 Cascade temperature -68.0 ~ +89.0 Power supply voltage 0.0 ~ 120.0 Filter temperature -68.0 ~ +160.0 Ambient temperature -68.0 ~ +89.0 Door 0/100 Close/Open

Capillary heater 0/100 Off/On Compressor H 0/100 Off/On Compressor L 0/100 Off/On Power failure 0/100 Off/On Running ratio 0~100, 222 % Diagnosed value for overload operation 0~100, 999 % 2H timer counting 0~120 Minute 8H timer counting 0~480 Minute Set temperature -90.0~-50.0

High temp. alarm set value +5.0~+20.0 Low temp. alarm set value -5.0~-20.0 Filter lamp 0/50 Off/On

Remote alarm 0/50 Off/On Status lamp 0/50 Off/On Remote control of set temperature -90.0~-50.0

: 0䉝 : 0䉝 : 8 minutes

: 30 minutes : -80䉝 : 2 minutes : +10䉝 : -10䉝 : 3 minutes : 000 : 000 : OFF : OFF : OFF : Fixed

䉝䉝

㻑䉝䉝

䉝䉝䉝

䉝

- 21 -

F22: <Purpose> Setting of serial communication mode <Operation> input F22 and press SET key to display ‘000’ (Factory default)

Change a value by pressing key and key. Press SET key to memorize 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’.

F23: <Purpose> To display a power supply voltage (Unit: %) <Operation> Service code should be input in F06 prior to use this mode.

Input F23 and press SET key to display alternately F23 with ‘xxx’ (present power supply voltage). Press SET key to return to chamber temperature display.

F24: <Purpose> Linkage between remote alarm and buzzer <Operation> Input F24 and Press SET key to display ‘000’ (Factory default).

Change a value by pressing key. Press SET key to memorize the value and return to chamber temperature display. 000: Remote alarm does not link with buzzer 001: Remote alarm links with buzzer

F25: <Purpose> Setting of Ring Back time <Operation> Input F25 and press SET key to display “030” (Factory default).

Setting range is ‘000’~’060’. Change a value by pressing key. Press SET key to memorize 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

F26: <Purpose> Display of running ratio (Unit: %) <Operation> 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.

F27: <Purpose> Display of diagnosed value for overload running ratio <Operation> Service code should be input in F06 prior to use this mode.

Input F27 and press SET key to display alternately F27 with “XXX” (present diagnosed value for overload running ratio). ‘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.

- 22 -

F28: <Purpose> Display of delay time to start measuring running ratio

(2hrs timer; 000~120 min)

<Operation> 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 ratio.

F29: <Purpose> Display of delay time to start diagnosing running ratio

(8hrs timer; 000~480 min)

<Operation> 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 counting value for delay time to start diagnosing running ratio). 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 ratio.

F30: <Purpose> ROM version is displayed <Operation> 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.

F31: <Purpose> Setting of buzzer during filter alarm occurs <Operation> Service code should be input in F06 prior to use this mode.

Input F31 and press SET key to display “001” (Factory default). Change to alternative value ‘000’ or ‘001’ by pressing key. Press SET key to revert to chamber temperature display. 000: Off 001: On

F32: <Purpose> Display of accumulation time of condensing fan motor <Operation> Service code should be input in F06 prior to use this mode.

Input F32 and press SET key to display alternately F32 with ‘xx.x’ (accumulation time). Press SET key to return to chamber temperature display.

F44: <Purpose> Adjustment for difference of power supply voltage <Operation> 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

000 0% (Power supply voltage is not increased) 001 3% increased 002 5% increased 003 7% increased

F50: <Purpose> Setting of alarm delay time <Operation> Input F50 and press SET key to display ‘015’ (Factory default).

Setting range is ‘000’~’015’. Change a value by pressing key and key. Press SET key to memorize the value and to return to chamber temperature display.

- 23 -

11. Compressor control (differential) value

Compressor H:

Turns on when a chamber temperature is set temperature -0.4䉝.

Compressor L

1) Turns on when compressor H turns on and a cascade sensor temperature is -34䉝.

2) Turns on after 3 minutes elapse since compressor H turned on

Compressor H, L

Turns off when a chamber temperature is set temperature -1.6䉝

Interval:

1 minute * * ‘Interval’ means that a period one of compressor either H or L turns on after another one was

turned on.

Note) Compressor L does not turn on until 1 minute elapses since compressor H turned on,

if a temperature in cascade sensor is lower than -34䉝.

Chamber temp. (䠬䠲)

PV=SV-0.4

PV=SV-1.4

1min or over

3min. or over 䠄Comp. delay䠅

PV=SV-0.4

PV=SV-1.4

3min. or over 䠄Comp. delay䠅

1min or over

Cascade temp. (CT)

CT=-34䉝

Comp. H

Comp. L

Comp. H&L OFF

Comp. L ON

Comp. H&L OFF

Comp. L ON

Comp. H ON

Protection for compressor H: Compressor H turns off to prevent it from being warmed up that is caused by fan motor lock.

Filter sensor temperature:

Compressor H turns off when a filter sensor temperature is higher than 60䉝. It will turn on again

when the filter sensor temperature is lower than ambient temperature +10䉝.

SV SV-0.4䉝

SV-1.4䉝

CT=-34䉝

- 24 -

12. Delay time

Compressor delay time Compressor H or L will be active after predetermined delay time elapses in case it turned off during

cycle operation. Compressor delay time is changeable in F05.

Temperature alarm delay time When high or low temperature alarm is triggered, buzzer and remote alarm are active after

predetermined delay time elapses. Temperature alarm delay time is changeable in F01(high temp. alarm) or F02 (low temp. alarm).

* Note) ALARM lamp illuminates and “F01” or “F02” is displayed without delay.

Door alarm delay time When an outer door is ajar, audible alarm sounds after predetermined delay time elapses.

Door alarm delay time is settabled in F04.

Power failure alarm delay time When a power is interrupted by power failure, power failure alarm will be occurred after 3 seconds

elapses. Power failure alarm delay time is unchangeable.

13. Prevention for oil logging in capillary

Purpose: Capillary heater which mounts on capillary is powered and both compressor H and L are turned off

to prevent capillary from oil logging.

Action: Both compressor H and L are turned off and capillary heater relay (CN4: 3-4) is active.

Frequency: 8 minutes in every 18 hours (Setting time are changeable in F19)

Timing of action: (1) After 9 seconds elapses since both compressor H and L are turned off during cycle operation.

(2) Forcible termination of operation for both compressor H and L if they keep running for 60

Forcible operation of capillary heater Forcible operation of capillary heater is settable in F18.

14. Sensor offset

Offset value:

(1) Temperature sensor: +1.3䉝 (Changeable in F07) (2) Cascade sensor: +/-0.0䉝 (Changeable in F08) (3) Filter sensor: +/-0.0䉝 (4) AT sensor: +/-0.0䉝

15. Remote alarm terminal

Operation

When a unit is in alarming condition, remote alarm contact (RLY2) switches the position.

minutes after they were ordered to stop operation.

Normal Open Close In alarm Close Open

(Factory default: 3 minutes)

(Factory default: 15 minutes)

(Factory default: 2 minutes)

(3 seconds fixed)

Between 1 and 2

(N.O.)

CN3

Between 1 and 3

(N.C.)

- 25 -

16. Actions and settings after reset

Momentary power interruption:

Actions and settings after unit retrieves from power failure alarm:

17. Lamp and display

Lamp specifications:

Actions and settings when a power is supplied (Power on reset)

Alarm Off Compressor Off Remote alarm Off Ring Back 30 minutes Door alarm delay time 2 minutes Timer Reset 2H, 8H timer Reset (0) Counting time during compressor L is inactive Reset Setting data Read by non-volatile memory

When a chamber temperature is lower than set temperature+10䉝, it is diagnosed that unit is

in momentary power interruption.

Alarm Off Compressor Off Remote alarm On Door alarm delay time 2 minutes Timer Reset 2H, 8H timer Reset (0) Counting time during compressor L is inactive Reset Setting data Read by non-volatile memory

Lamp Color Lamp status Unit status

DP1 Orange

DP2 Green

DP3 Red

DP4 (Unused)

DP6 Green

Lamp Color Lamp status Unit status DP51 Red Flash Alarming DP52 Green On Status 1 or 2 or 3 is occurred DP53 Orange On Filter alarm is occurred DP54 Red On Door is ajar

DP55 Orange

DP56 (Unused)

On Not in alarm Off High/low temp. alarm, sensor failure, power failure On Compressor L is active Off Compressor L is inactive On Capillary heater is active Off Capillary heater is inactive

On Compressor H is active Off Compressor H is inactive

On Notice of battery life

Flash Notice of fan motor life

- 26 -

Examples of display:

Chamber temp. -79.5䉝

Set temp. -80.0䉝

Function㻌㻌㻌 F03

Service code㻌㻌㻌 384

Set value㻌㻌㻌 004

Key Lock㻌㻌㻌 L_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 (Shorter interval than other alarms)

Decimal point of chamber temp. -80.0

Sensor offset㻌㻌㻌 -5.0

Operation monitoring㻌㻌LCP

Error 㻌㻌㻌㻌 E01

Accumulation time㻌㻌8H timer 135

- 27 -

Parts layout

Control panel

Inner door handle

Temp. sensor with cover

Temp. sensor without cover

Door latch "Close"

Door latch "Open"

Filter

AT sensor

- 28 -

Oil separator Compressor L Compressor H Condensing fan motor

Filter sensor

Fan motor condenser 12P terminal Remote alarm terminal

Breaker switch Battery switch

Oil separator

Heater relay

Transformer

Starting relay L H comp relay Switching power supply

Starting relay H

Temp. controller PCB

Temp. control relay

Starting capacitor L

Starting capacitor H

Running capacitor L Running capacitor H

- 29 -

Test data

]

䉝

-20

-40

-60

Temperature[

-80

-100 0246810

Note) Following data are the reference only.

AT30䉝 Pull-down & Pull-up Temperture

230V50Hz䚷Pull-down

Pull-up

Time[hour]

]

䉝

-20

-40

-60

Temperature[

-80

-100

-120 0246810

AT35䉝 Pull-down Tempertures

1/2䠤 H䚷EVA䚷OUT L EVA䚷IN L䚷EVA䚷OUT

Time[hour]

- 30 -

AT35䉝䚷Pull-down Pressure䚷䠄1ĳ230V50Hz䠅

㻴㼋㻼㼐㼇㻹㻼㼍㼉

3.5

2.5

1.5

Pressure[MPa]

0.5

0246810

Time[hour]

㻴㼋㻼䡏㼇㻹㻼㼍㼉㻸㼋㻼㼐㼇㻹㻼㼍㼉㻸㼋㻼䡏㼇㻹㻼㼍㼉

1000

900 800 700 600 500 400

Input[W]

300 200 100

AT35䉝䚷Pull-down䚷Current-Input

10 9 8 7 6

W䚷䠄50Hz䠅

A䚷䠄50Hz䠅

01234567

Time[hour]

5 4 3 2 1 0

Current[A]

- 31 -

᳑

Temperature uniformity - 17points measuring

Notes) These data are the reference only.

Back

Top of interior

Front

(2)

(5)

(3)(1)

(16)

10mmH

(4)

69mm᳂

Upper area measuring points

(1)~(4): 69mm(H)lower from "Top of interior", 30mm(D) away and 43mm(W) away from each corner

(5): Center and 69mm(H) lower from "Top of interior"

Upper shelf

(7)

(6)

Middle shelf

Mullion

Lower shelf

(12)

(11)

Bottom of interior

(17)

(10)

(15)

(8)

10mmH

(13)

43mmW

(9)

10mmH

69mm᳂

(14)

30mmD

(16): Center and 10mm(H) upper from "Upper shelf"

Middle area measuring points

(6)~(9): 10mm(H) upper from "Middle shelf", 30mm(D) away and 43mm(W) away from each corner

(10): Center and 10mm(H) upper from "Middle shelf"

Bottom area measuring points

(11)~(14): 69mm(H) upper from "Bottom of interior", 30mm(D) away and 43mm(W) away from each corner

(15): Center and 69mm(H) upper from "Bottom of interior"

Left

(17): Center and 10mm(H) upper from "Lower shelf"

Right

- 32 -

Temperature Uniformity (Reference Data)

䉝

(

䠘Conditions䠚

Ambient tem Load: Unloaded

䠘Tem Temperature of the cycle in each area (SV=-80

䐟䐠䐡䐢䐣䐤䐥䐦䐧䐨䐩䐪䐫䐬䐭䐮䐯

erature: 20/30䉝

erature distribution䠚

Left front -75.7 -81.0 -78.4 ±2.7

Left bac

ht front -73.7 -80.2 -77.0 ±3.3

Upper areaMiddle areaBottom are

Center of Upper shel Center of Lower shel

Average

ht bac

Cente

Left front -78.1 -80.6 -79.4 ±1.3

Left bac

ht front -78.0 -80.6 -79.3 ±1.3

ht bac

Cente

Left front -77.0 -79.4 -78.2 ±1.2

Left bac

ht front -76.4 -78.5 -77.5 ±1.1

ht bac

Cente

Ambient temperature 20䉝

Maximum Minimum

-77.7 -84.2 -81.0 ±3.3

-77.0 -83.6 -80.3 ±3.3

-76.7

-80.0 -83.2 -81.6 ±1.6

-79.8 -83.2 -81.5 ±1.7

-79.7

-77.8 -80.6 -79.2 ±1.4

-77.0 -79.9 -78.5 ±1.5

-78.3 -80.7 -79.5 ±1.2

-80.0 -82.0 -81.0 ±1.0

-80.0 -81.3 -80.7 ±0.6

---79.6 -

䚸air temperature)

Unit:䉝

230V/50Hz

Middle o

cycle

-81.7 -79.2 ±2.5

-81.9 -80.8 ±1.1

Differential

䐟䐠䐡䐢䐣䐤䐥䐦䐧䐨䐩䐪䐫䐬䐭䐮䐯

Note:This data does not re

Upper areaMiddle area

Bottom are

Center of Upper shel Center of Lower shel

Average

Left front -75.0 -79.1 -77.1 ±2.1

Left bac

ht front -74.7 -79.5 -77.1 ±2.6

ht bac

Cente

Left front -77.7 -80.0 -78.9 ±1.2

Left bac

ht front -77.4 -79.7 -78.6 ±0.9

ht bac

Cente

Left front -76.2 -79.1 -77.7 ±1.5

Left bac

ht front -77.5 -80.9 -79.2 ±1.5

ht bac

Cente

䠘Amount of power consumption䠚 Amount of power consumption when driving at cyc

Ambient temperature 30䉝

230V/50Hz

Maximum Minimum

-76.8 -81.3 -79.1 ±2.3

-76.8

-77.1 -82.2 -79.7 ±2.4

-79.5 -82.2 -80.9 ±1.4

-79.3

-79.0 -80.7 -79.9 ±1.4

-77.7 -80.9 -79.3 ±1.6

-78.4 -82.0 -80.2 ±1.7

-78.4 -81.4 -79.9 ±1.8

-78.8 -80.6 -79.7 ±0.9

-79.5 -81.0 -80.3 ±0.8

---79.2 -

resent a guarantee of product performance.

-81.6 -79.2 ±2.4

-82.1 -80.7 ±1.2

Middle o

cycle

Differential

SV=-80䉝䠅

Unit䠖kWh/da

Ambient temp. 30䉝Ambient temp. 20䉝

230V/50Hz

11.08

230V/50Hz

12.63

- 33 -

䠘Temperature distribution䠚

䉝

(

Temperature of the cycle in each area (SV=-70

Ambient temperature 20䉝

Maximum Minimum

䐟䐠䐡䐢䐣䐤䐥䐦䐧䐨䐩䐪䐫䐬䐭䐮䐯

Upper areaMiddle area

Bottom are

Center of Upper shel Center of Lower shel

Average

Upper areaMiddle area

Bottom are

Center of Upper shel Center of Lower shel

Average

Left front -67.6 -74.7 -71.2 ±3.6 Left bac

ht front -66.0 -73.3 -69.7 ±3.7

ht bac

Cente Left front -66.7 -70.3 -68.5 ±1.8 Left bac

ht front -66.1 -69.6 -67.9 ±1.8

ht bac

Cente Left front -62.4 -64.8 -63.6 ±1.2 Left bac

ht front -61.7 -63.9 -62.8 ±1.1

ht bac

Cente

Left front -68.6 -77.4 -73.0 ±4.4 Left bac

ht front -65.6 -72.9 -69.3 ±3.7

ht bac

Cente Left front -66.0 -69.8 -67.9 ±1.9 Left bac

ht front -65.5 -69.0 -67.3 ±1.8

ht bac

Cente Left front -61.3 -63.5 -62.4 ±1.1 Left bac

ht front -60.5 -62.7 -61.6 ±1.1

ht bac

Cente

-69.3 -78.3 -73.8 ±4.5

-68.4 -77.2 -72.8 ±4.4

-68.0

-69.5 -75.0 -72.3 ±2.8

-69.5 -74.3 -71.9 ±2.4

-68.8

-64.3 -67.5 -65.9 ±1.6

-62.1 -65.1 -63.6 ±1.5

-63.8 -66.1 -65.0 ±1.2

-69.0 -72.7 -70.9 ±1.9

-66.1 -67.7 -66.9 ±0.8

---68.7 -

Ambient temperature 30䉝

Maximum Minimum

-66.9 -73.9 -70.4 ±3.5

-68.0 -76.5 -72.3 ±4.3

-67.5

-69.0 -74.6 -71.8 ±2.8

-68.9 -74.0 -71.5 ±2.6

-68.2

-63.4 -66.4 -64.9 ±1.5

-61.1 -64.4 -62.8 ±1.7

-62.8 -65.0 -63.9 ±1.1

-68.2 -72.0 -70.1 ±1.9

-65.2 -67.0 -66.1 ±0.9

---68.0 -

䚸air temperature)

Unit:䉝

230V/50Hz

Middle o

cycle

-75.5 -71.8 ±3.8

-72.6 -70.7 ±1.9

230V/50Hz

Middle o

cycle

-75.0 -71.3 ±3.8

-72.3 -70.3 ±2.1

Differential

Note:This data does not represent a guarantee of product performance.

䠘Amount of power consumption䠚 Amount of power consumption when driving at cyc

Ambient temp. 20䉝

230V/50Hz

8.57

Ambient temp. 30䉝

SV=-70䉝䠅

Unit䠖kWh/da

230V/50Hz

9.96

- 34 -

-70

-72

-74

-76

]

-78

䉝

-80

-82

Temperature[

-84

-86

-88

-90

0.0 0.5 1.0 1.5 2.0 2.5 3.0

䐣䐯

Condition: SV-80䉝, AT30䉝

䐭

Time[hour]

䐮

䐨

-70

-72

-74

-76

]

-78

䉝

-80

-82

Temperature[

-84

-86

-88

-90

0.0 0.5 1.0 1.5 2.0 2.5 3.0

䐣

Condition: SV-80䉝, AT20䉝

䐯

䐮

Time[hour]

䐨

䐭

- 35 -

-60

Condition: SV-70䉝, AT30䉝

䐯

]

䉝

-62

-64

-66

-68

-70

-72

䐮

Temperature[

-74

-76

-78

-80

0.0 0.5 1.0 1.5 2.0 2.5 3.0

䐣

䐨

Time[hour]

䐭

-60

Condition: SV-70䉝, AT20䉝

-62

-64

-66

]

-68

䉝

-70

-72

Temperature[

-74

-76

-78

-80

0.0 0.5 1.0 1.5 2.0 2.5 3.0

䐣

Time[hour]

䐨

䐮

䐯

䐭

- 36 -

Conditions: 500ml water x 180 bottles 䠄90L䠅 Measuring points: a, b, c, d, L eva-out, H eva-out Ambient temperature: 30䉝

䠄䉝䠅

-20

Front

4th shelf: 500ml x 45bottles

3rd shelf: 500ml x 45bottles

2nd shelf: 500ml x 45bottles

1st shelf: 500ml x 45bottles

Pull-down data AT:30䉝

Load d

H eva out

-40

Temperature

-60

-80

-100 0 1020304050607080

Load a

- 37 -

Load c

Time䠄hr䠅

L eva out

Load b

Temperature[䉝]

)

Temperature changes (SV-80䉝䊻 SV-70䉝䊻-80䉝) 䚷AT30䉝

H eva out

-10

-20

-30

-40

-50

-60

-70

-80

-90

L eva out

Load d

Load a

Load b

Load c

0 100 200 300 400 500 600 700 800

Pull-up data AT30䉝

Time[min]

40 30 20 10

-10

䠄䉝䠅

-20

-30

-40

-50

Temperature

-60

-70

-80

-90

-100 0 102030405060708090

H䚷eva out

L eva ou

Load a

Load b

Load d

Load c

Time(hr

- 38 -

Sanyo MDF-U55V Service manual

Specifications and Main Features

Frequently Asked Questions

User Manual