Sanyo MDF-C2156VAN Installation Manual
INSTRUCTION MANUAL
MDF-C2156VAN
Ultra-Low Temperature Freezer
MDF-C2156VANC
CONTENTS
INTRODUCTION P. 2
PRECAUTIONS FOR SAFE OPERATION P. 3
ENVIRONMENTAL CONDITIONS P. 7
FREEZER COMPONENTS P. 8
Control panel P. 11
INSTALLATION SITE P. 12
INSTALLATION P. 13
START-UP OF UNIT P. 14
Operation after power failure P. 14
BASIC SCREEN OF CONTROL PANEL P. 15
FUNCTION OF CONTROL PANEL P. 15
RUNNING OPERATION (MENU/Set) P. 16
Key lock function P. 17
Key lock release function P. 17
VARIOUS SETTING (MENU/Log) P. 18
Display of log (Log) P. 18
VARIOUS SETTING (MENU/Tools) P. 20
Initialization (Tools/ Default Setting) P. 20
Date, Time, Set of log interval (Tools/Date Time) P. 21
Set of key lock password (Tools/Key lock PW Setting) P. 22
ALALRM BUZZER P. 22
MONITOR OF FREEZER STATUS P. 23
ALARMS & SELF-DIAGNOSIS FUNCTION P. 23
ALARMS & SAFETY FUNCTIONS P. 24
REMOTE ALARM TERMINAL P. 25
BACK-UP SYSTEM P. 25
ROUTINE MAINTENANCE
Cleaning of cabinet P. 27
Cleaning of condenser filter P. 27
Defrosting of inside wall P. 28
REPLACEMENT OF BATTERY P. 29
TROUBLESHOOTING P. 30
DISPOSAL OF UNIT P. 31
Recycle of battery P. 31
TEMPERATURE RECORDER (OPTION) P. 37
MOUNTING OF INTERFACE BOARD (OPTION) P. 40
SPECIFICATIONS P. 41
PERFORMANCE P. 42
SAFETY CHECK SHEET P. 43
1
INTRODUCTION
■ Read this manual carefully before using the appliance and follow the instructions for safety operation.
■ Sanyo never guarantee any safety if the appliance is used for any objects other than intended use or
used by any procedures other than those mentioned in this manual.
■ Keep this manual in an adequate place to refer to it as necessary.
■ The contents of the manual will be subjected to change without notice due to the improvement of
performance or functions.
■ Contact Sanyo sales representative or agent if any page of the manual is lost or page order is incorrect.
■ Contact Sanyo sales representative or agent if any point in this manual is unclear or if there are any
inaccuracies.
■ No part of this manual may be reproduced in any form without the expressed written permission of
Sanyo.
2
PRECAUTIONS FOR SAFE OPERATION
It is imperative that the user complies with this manual as it contains
important safety advice.
Items and procedures are described so that you can use this unit correctly and safely.
If the precautions advised are followed, this will prevent possible injury to the user and
any other person.
Precautions are illustrated in the following way:
WARNING
Failure to observe WARNING signs could result in a hazard to personnel
possibly resulting in serious injury or death.
CAUTION
Failure to observe CAUTION signs could result in injury to personnel and
damage to the unit and associated property.
Symbol shows;
Be sure to keep this manual in a place accessible to users of this unit.
< Label on the unit >
this symbol means caution.
this symbol means an action is prohibited.
this symbol means an instruction must be followed.
This mark is labeled on the cover in which the electrical components of high voltage
are enclosed to prevent the electric shock.
The cover should be removed by a qualified engineer or a service personnel only.
WARNING
As with any equipment that uses N2 gas, there is a likelihood of oxygen depletion in the vicinity
of the equipment. It is important that you assess the work site to ensure there is suitable and
sufficient ventilation. If restricted ventilation is suspected, then other methods of ensuring a
safe environment must be considered. These may include atmosphere monitoring and
warning devices.
3
PRECAUTIONS FOR SAFE OPERATION
Do not use the unit outdoors. Current leakage or electric shock may result if the unit is exposed to
rain water.
Only qualified engineers or service personnel should install the unit. The installation by
unqualified personnel may cause electric shock or fire.
Install the unit on a sturdy floor and take an adequate precaution to prevent the unit from
turning over. If the floor is not strong enough or the installation site is not adequate, this may result
in injury from the unit falling or tipping over.
Never install the unit in a humid place or a place where it is likely to be splashed by water.
Deterioration of the insulation may result which could cause current leakage or electric shock.
Never install the unit in a flammable or volatile location. This may cause explosion or fire.
Never install the unit where acid or corrosive gases are present as current leakage or electric
shock may result due to corrosion.
Always ground (earth) the unit to prevent electric shock. If the power supply outlet is not
grounded, it will be necessary to install a ground by qualified engineers.
Never ground the unit through a gas pipe, water main, telephone line or lightning rod. Such
grounding may cause electric shock in the case of an incomplete circuit.
Connect the unit to a power source as indicated on the rating label attached to the unit. Use
of any other voltage or frequency other than that on the rating label may cause fire or electric shock.
Never store volatile or flammable substances in this unit if the cylinder cannot be sealed. These
may cause explosion or fire.
Do not insert metal objects such as a pin or a wire into any vent, gap or any outlet on the unit.
This may cause electric shock or injury by accidental contact with moving parts.
Use this unit in safe area when treating the poison, harmful or radiate articles. Improper use
may cause bad effect on your health or environment.
Turn off the power switch (if provided) and disconnect the power supply to the unit prior to any
repair or maintenance of the unit in order to prevent electric shock or injury.
Do not touch any electrical parts (such as power supply plug) or operate switches with a wet
hand. This may cause electric shock.
WARNING
4
PRECAUTIONS FOR SAFE OPERATION
Ensure you do not inhale or consume medication or aerosols from around the unit at the time of
maintenance. These may be harmful to your health.
Never splash water directly onto the unit as this may cause electric shock or short circuit.
Never put cylinders with liquid on the unit as this may cause electric shock or short circuit when
the liquid is spilled.
Never bind, process, or step on the power supply cord, or never damage or break the power
supply plug. A broken supply cord or plug may cause fire or electric shock.
Do not use the supply cord if its plug is loose. Such supply cord may cause fire or electric shock.
Never disassemble, repair, or modify the unit yourself. Any such work carried out by an
unauthorized person may result in fire, or electric shock or injury due to a malfunction.
Disconnect the power supply plug if there is something wrong with the unit. Continued
abnormal operation may cause electric shock or fire.
When removing the plug from the power supply outlet, grip the power supply plug, not the cord.
Pulling the cord may result in electric shock or fire by short circuit.
Disconnect the power supply plug before moving the unit. Take care not to damage the power
cord. A damaged cord may cause electric shock or fire.
Disconnect the power plug when the unit is not used for long periods. Keeping the connection
may cause electric shock, current leakage, or fire due to the deterioration of insulation.
If the unit is to be stored unused in an unsupervised area for an extended period, ensure that
children do not have access and that doors cannot be closed completely.
The disposal of the unit should be accomplished by appropriate personnel. Remove doors to
prevent accidents such as suffocation.
Do not put the packing plastic bag within reach of children as suffocation may result.
WARNING
5
PRECAUTIONS FOR SAFE OPERATION
Use a dedicated power source (a dedicated circuit with a breaker) as indicated on the rating label
attached to the unit. A branched circuit may cause fire resulting from abnormal heating.
Connect the power supply plug to the power source firmly after removing the dust on the plug.
A dusty plug or improper insertion may cause a heat or ignition.
Never store corrosive substances such as acid or alkali in this unit if the cylinder cannot be sealed.
These may cause corrosion of inner components or electric parts.
Check the setting when starting up of operation after power failure or turning off of power
switch. The stored items may be damaged due to the change of setting.
Be careful not to tip over the unit during movement to prevent damage or injury.
Prepare a safety check sheet when you request any repair or maintenance for the safety of service
personnel.
CAUTION
6
ENVIRONMENTAL CONDITIONS
This equipment is designed to be safe at least under the following conditions (based on the IEC-1010-1):
■ Indoor use;
■ Altitude up to 2000 m;
■ Ambient temperature 5
■ Maximum relative humidity 80% for temperature up to 31
o
at 40
C;
■ Mains supply voltage fluctuations not to exceed ±10% of the nominal voltage;
■ Other supply voltage fluctuations as stated by the manufacturer;
■ Transient overvoltages according to Installation Categories (Overvoltage Categories) II; For mains
supply the minimum and normal category is II;
■ Pollution degree 2 in accordance with IEC 664.
o
C to 40oC
o
C decreasing linearly to 50% relative humidity
7
FREEZER COMPONENTS
4
6
5
Inside of side table
7
1
15
27
10
17
9
32
5
Rear side
26
16
16
18
14
25
27
19
17
10
13
12
11
8
9
20
21
22
23
24
8
FREEZER COMPONENTS
1. Lock: Turn clockwise to 180
2. Door: Hinged type. The door can be opened in any angle on the way to full open.
3. Magnetic door gasket: Seals the door and prevents leakage of cold air.
4. Inner lid: Serves as a means of reducing cold air leakage when the door is open.
5. Access port: Serves a means of leading the measuring cable from the freezing room to the outside.
6. Caster: 6 casters are provided. They make the moving of the unit easier.
7. Leveling foot: Serves to adjust the height and to settle the frame.
8. Grille: Acts as an inlet for air to cool the motor. Be careful not to block this. By pulling down this
grille, you can clean a clogged condenser filter. See page 27 for the details.
9. Exhaust air vent: Be careful not to block this.
10. Side table: A door can be opened. There are an access port and a remote alarm cable output port
in the inside.
11. panel door Lock: To lock the control cover to avoid the setting by accidental contact.
12. Panel door: There is a controller such as a power switch inside the panel door.
13. Control panel: Refer to page 11.
14. Digital temperature indicator: This indicator shows the present temperature or setting
temperature.
15. Temperature recorder (OPTION): Refer to page 38.
16. Back-up system joint: It is positioned at rear of the unit. Serves to connect with the pipelines
from the cylinder (liquid N
17. Remote alarm cable output port
18. Back-up test switch (TEST): Examine the functions of the back-up system. This switch allows
liquid N
19. Back-up switch (BACK UP): Switch on for operation of the back-up system and switch off for
stopping. Handle this switch according to page 26 “Back-up system”.
20. Communication box cover: Refer to “Mounting of interface board (OPTION)” on page 39 for
usage.
to spout under any circumstances. Handle it according to page 26 “Back-up system”.
2
2
o
with a key and the outer door is securely locked.
) at the top right of the rear frame. Refer to page 26 “Back-up system”
9
FREEZER COMPONENTS
21. Remote alarm switch (REMOTE ALARM): This switch is for remote alarm. In case of operating
remote alarm, turn on the switch.
22. Remote alarm terminal (MAX DC30V 2A)
23. Analog output terminal (ANALOG VOLTAGE)
24. Power supply switch (POWER): Power switch of the freezer.
25. Battery switch: It is the switch of the battery for the power failure alarm. Turn it on usually. Turn
it off when you do not drive for a long time. (More than 1 month)
26. Temperature control knob (TEMP. SET(
the back-up system device.
27. Side table handle: There is a lever at the center of the front. when it is pulled to the front, the side
table is open.
o
C)): It is the knob which adjusts operation temperature of
10
FREEZER COMPONENTS
Control panel
1. LCD panel
1
o
C
Closed
2. Battery check lamp (BATTERY): This lamp lights when the battery capacity decreases at the power
failure. Batteries are expendable supplies. Replace a battery with every three years. For the
replacement, consult Sanyo sales representative or agent.
3. Alarm lamp (ALARM): This lamp flashes when the unit is in alarm condition.
4. Back-up lamp (STANDBY): This lamp lights when the back-up switch is on. (This doesn’t show
back-up system is activated.)
5. Figure input key: User for operation setting.
6. Menu button (MENU): To open the menu window.
7. Shift key (Upward, downward, rightward, leftward): To move the cursor on the LCD panel.
8. Enter key (ENTER): To determine the selection of menu.
9. Clear key (CE): To clear the input value during setting.
10. Alarm buzzer stop key (BUZZER):
- Buzzer stop key : Refer to P.22 for the details.
- Alarm test : Refer to P.15 for the details.
- Display of chamber temperature at power failure: Refer to P.24 for the details.
11. LCD contrast adjusting knob (CONT.): To adjust the contrast of LCD panel.
3
11
4
5
6
7
8
2
10 9
11
INSTALLATION SITE
To operate this unit properly and to obtain maximum performance, install the unit in a location with the
following conditions:
■ A location not subjected to direct sunlight
Do not install the unit under direct sunlight. Installation in a location subjected to direct sunlight cannot
obtain the intended performance.
■ A location with adequate ventilation
Leave at least 10 cm around the unit for ventilation. Poor ventilation will result in a reduction of the
performance and consequently the failure.
■ A location away from heat generating sources
Avoid installing the unit near heat-emitting appliances such as a heater or a boiler etc. Heat can
decrease the intended performance of the unit.
■ A location with little temperature change
Install the unit under stable ambient temperature. The allowable ambient temperature is between -5 and
o
+35
C.
■ A location with a sturdy and level floor
Always install the unit on a sturdy and level floor. The uneven floor or tilted installation may cause failure
or injury. Install the unit in stable condition to avoid the vibration or noise. Unstable condition may
cause vibration or noise.
WARNING
Install the unit on a sturdy floor. If the floor is not strong enough or the installation site is not
adequate, this may result in injury from the unit falling or tipping over.
Select a level and sturdy floor for installation. This precaution will prevent the unit from tipping.
Improper installation may result in water spillage or injury from the unit tipping over.
■ A location not prone to high humidity
Install the unit in the ambient of 80% R.H. or less humidity. Installation under high humidity may cause
current leakage or electric shock.
WARNING
Do not use the unit outdoors. Current leakage or electric shock may result if the unit is exposed to
rain water.
Never install the unit in a humid place or a place where it is likely to be splashed by water.
Deterioration of the insulation may result which could cause current leakage or electric shock.
■ A location without flammable or corrosive gas
Never install the unit in a flammable or volatile location. This may cause explosion or fire or may result
in the current leakage or electric shock by the corrosion of the electrical components.
■ A location without the possibility of anything fall
Avoid installing the unit in the location where anything can fall down onto the unit. This may cause the
breakdown or failure of the unit.
12
INSTALLATION
1. Removing the packaging materials and tapes
Remove all transportation packaging materials and tapes. Open the doors and ventilate the unit. If the
outside panels are dirty, clean them with a diluted neutral dishwashing detergent. (Undiluted detergent
can damage the plastic components. For the dilution, refer to the instruction of the detergent.) After
the cleaning with the diluted detergent, always wipe it off with a wet cloth. Then wipe off the panels with
a dry cloth.
2. Adjusting the leveling foot
Extend the leveling feet by rotating them counterclockwise
to contact them to the floor. Ensure the unit is level.
3. Fixing the unit
Two fixtures are attached to the rear of the frame.
Fix the frame to the wall with these fixtures and rope or
chain.
4. Ground (earth)
The ground (earth) is for preventing the electric shock in the case of the electrical insulation is somehow
degraded. Always ground the unit at the time of installation.
Leveling foot
WARNING
Use a power supply outlet with ground (earth) to prevent electric shock. If the power supply outlet is
not grounded, it is necessary to install a ground by qualified engineers.
Never ground the unit through a gas pipe, water main, telephone line or lightning rod. Such
grounding may cause electric shock in the case of an incomplete circuit.
13
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