Sanyo MDF-U7386SC Benutzerhandbuch

this product family offers different types

and models of ultra-low freezer which can

achieve and maintain temperatures down

to -86ºC (-123ºf) at ambient temperature 

of 30ºC (85ºf). It is  a wide selection, offer-

ing a variety of sizes and types suitable 

for uses such as long term preservation, 

testing, frozen storage etc.

the refrigeration system is at the heart of

producing ultra-low temperature freezing.

In the process of developing various 

technical solutions in order to achieve and 

maintain ultra-low temperatures, sanyo 

designed a compressor especially for ultra 

low-temperature use. sanyo is a leading 

manufacturer of ultra-low temperature 

freezers that develops and produces all its 

own components, from the refrigeration 

units to the microprocessors.

In ultra-low temperature freezers,

effective insulation is extremely critical

since the temperature difference between

the outside and the inner compartment

can be as high as 115ºC. the insulation

used in sanyo’s ultra-low temperature

freezers is two layers of rigid,

foamed in place polyurethane. this design

prevents the insulation layers from

distortion and cracking that might occur

due to temperature differences inside and

out, and creates the most efficient

insulation material available today.

moisture condensation at the top edges

of the cabinet due to differences in

temperature inside and out causes frost

and icing problems, which may reduce

heat insulation efficiency and obstruct

door movements. they are prevented by

the “hot line” by means of which hot gas

from the higher temperature circuit is

circulated through the problem areas.

               

p r e s e r v a t i o n  

                                                                 

p r e s e r v a t i o n

-86°C PRODUCT FAMILY

DESIGN

–80°C

–130°C

–152°C

Recrystallization point

Hexagonal crystal

Cubic crystal

Amorphous 

ice crystal

Recrystallization Mechanism (Artist’s Concept)

Alarm lamp and buzzer

Filter check lamp

Buzzer key

Alarm test key

Mode setting key

Digit shift key

Numerical value shift key

Enter key

Power switch

CO

2

 Back-up test swich (AT type only)

CO

2

 Back-up swich (AT type only)

Battery switch

Remote alarm switch

Temperature recorder

MDF-393AT

1

2

3 4 5 6 7 8

9

10

12

13

14

11

1
2
3
4
5
6
7
8
9

10

12
13
14

11

Model No.
Recording Range

Freezer Model

MTR-85H

–100 to +50°C

MDF-192

MDF-393

MDF-593

MDF-793

MTR-155H

–170 to +30°C

MDF-1155

CVK-UB2/UB2(I): LCO

2

 Backup Kit for MDF-793/593/393

CVK-UBN2/UBN2(I): LN

2

 Backup Kit for MDF-793/593/393

CVK-A: Built-in LCO

2

 Backup Kit for MDF-793/593/393/192

CVK-AT2: LCO

2

 Backup Kit for MDF-1155

CVK-ATN2: LN

2

 Backup Kit for MDF-1155

(I) version for North America only

MDF-U5386SC

innovation
performance
reliability
support

MDF-U7386SC 

23.5 cu.ft.

■ the newly developed refrigeration 

system and freezer structure minimizes 

intrusive operating noise.

■ the newly developed back cover 

combined with new aerodynamically 

designed and placed components in the 

refrigeration compartment provide supe-

rior air flow, making it possible to drasti-

cally reduce the stress to the freezer and 

contributing to excellent durability.

■ two independent and insulated inner 

doors ensure maximum interior chamber 

uniformity.

■ High and low temperature warning pro-

vides an audible and visual alarm when 

the temperature deviates more than ±5°C 

to ±20°C (adjustable) from the set point.

■ alarm ring back function ensures that 

buzzer will resume operation, should 

alarm conditions continue after it is 

silenced.

■ microprocessor-controlled filter-clog 

check function

 protects the refrigeration circuit.

■ Control panel with digital display for 

easy operation.

UPRIGHT -86ºC ACCESSIBILITY

[Unit : mm (inch)]

MDF-U5386SC
–50°C to –86°C (1°C increment)
–86°C 
(Ambient temp. 30°C)
35.0” x 34.4” x 78.3”
(890 x 875 x 1990mm)
24.8” x 23.6” x 50.4”
(630 x 600 x 1280mm)
672 lbs. (Approx. 305kg) 
17.1 cu.ft. (483 L) 
Stainless steel, Adjustable, 
3 shelves, W608 x D533”, Max. 
load: 50kg (110 lbs.)/shelf
17” diameter, 3 locations (back, 
bottom left/right corner)
Hermetic type, Output: 1100 W 
(high stage side), 1100 W (low 
stage side)
HFC refrigerants
High/low temperature,  
Power failure, Filter check, 
Battery check
Allowable contact capacity: 
DC 30V, 2A
1 set of keys, 1 scraper
220V / 60 Hz 
Built-in voltage booster

*Appearance and specifications are subject to change without notice.

Distributed by:

40
20

0

–20
–40
–60
–80

–100

0

2

4

6

8

10

5

0

12

35

25

20

14

15

10

Te

m

p

er

at

u

re

 (°

C

)

40
20

0

–20
–40
–60
–80

–100

0

2

4

6

8

10

12

14

Te

m

p

er

at

u

re

 (°

C

)

Time (hour)

Time (hour)

30

14

8
6
4
2

10

12

0

T

im

e 

(h

o

u

r)

Ambient temperature (°C)

Central air temp. in cabinet
Ambient temp. 30°C, No-load

Ambient temp. and maintenance 
of –70°C by injection of LCO

2

 (30kg)

• A new beak style inner 

door latch tightly closes 

the inner door against 

the freezer frame. It 

also helps make 

opening and closing the door smoother.

• The condenser filter is situated at the

bottom right side of the front panel to make 

filter removal and cleaning easier.

5-15, Hiyoshi-cho 2-chome, Moriguchi City, Osaka, 570-8634, Japan

Telephone: +81-6-6992-0322  Fax: +81-6-6992-9291

URL  http://www.sanyo.co.jp/cmg/biomedical

©2006 SANYO  Printed in Japan   2006.3. MA.  SHR102

• Alarm lamp and buzzer offer secure warning 

of power failure or abnormal temperature 

increase.

• High and low temperature warning provides 

an audible and visual alarm when the 

temperature deviates more than 5°C to 

20°C (adjustable) from the set point.

• Alarm ring back function ensures that buzzer 

will resume operation, should alarm 

conditions continue after it is silenced.

• Microprocessor-controlled filter-clog check 

function protects the refrigeration circuit.

• New rugged, one-handed 

outer door latch has a hole to 

allow a padlock to securely 

protect valuable samples.

• Control panel with 

digital display for easy 

operation.

956 (37.6)

890 (35)

18 (0.7)

48

(1.9)

630 (24.8)

1540 (60.6)

450 (17.7)

1990 (78.3)

605.5 (23.8)

105

(4.1)

1280(50.4)

130 (5.1)

130 (5.1)

867 (34.1)

11

(0.4)

1625 (64)

795 (31.3)

140

(5.5)

• The newly developed refrigeration system 

and the freezer structure offer a quiet 

experimental environment.

• Achieves 10% higher energy conservation 

than previous model. 

(For model rated 220V, 50Hz)

• The newly developed back cover combined

with new aerodynamically designed and 

placed components in the refrigeration 

compartment provide superior air flow, 

making it possible 

to drastically 

reduce the stress 

to the freezer and 

contributing to 

excellent durability.

• Two independent and insulated inner doors

prevent cold air leakage.

Back 

cover

Compressors

Front

Rear

Air

Circular recorder 

Recorder mounting 

bracket 

(for MTR-85H)

LCO

2

 backup system

LN

2

 backup system

Inventory rack 

Rack Capacity: 24

*Cooling performance is indicated by the temperature reached at 

the center of the freezer (at ambient temperature of 30C with no 

load). In order to use the freezer at a stable temperature for a long 

time, it is recommended that the temperature be set to at least 5C 

higher than the indicated lowest temperature. 

In addition, depending on the usage conditions, it may not be 

possible to reach the indicated lowest temperature.

17.1 cu.ft.