Panasonic MDF-U7386S, MDF-U7386SC, MDF-U5386S, MDF-U5386SC Operating Instructions Manual
Please read these instructions carefully before using this product, and save this operating instructions
for future use.
See page 35 for all Model numbers.
MDF-U7386S
MDF-U5386S
Series
MDF-U7386S
Ultra-Low Temperature Freezer
Operating Instructions
MDF-U7386S
MDF-U7386SC
MDF-U5386S
MDF-U5386SC
1
CONTENTS
INTRODUCTION P. 2
PRECAUTIONS FOR SAFE OPERATION P. 3
ENVIRONMENTAL CONDITIONS P. 7
FREEZER COMPONENTS P. 8
Control panel P.10
INSTALLATION SITE P.11
INSTALLATION P.12
START-UP OF UNIT P.13
CHAMBER TEMERATURE SETTING P.14
KEY LOCK FUNCTION P.14
ALARM TEMPERATURE SETTING P.15
SETTING OF ALARM RESUME TIME P.16
CHANGE OF COMPRESSOR DELAY TIME P.17
REMOTE ALARM TERMINAL P.18
ALARMS & SAFETY FUNCTIONS P.19
ROUTINE MAINTENANCE P.20
Cleaning of cabinet P.20
Cleaning of condenser filter P.20
Defrosting of inside wall P.21
TROUBLESHOOTING P.22
DISPOSAL OF UNIT P.23
Recycle of battery P.23
Decontamination of unit P.23
DISPOSAL OF BATTERY P.28
TEMPERATURE RECORDER (OPTION) P.29
Setting of MTR-G85C P.29
BACKUP COOLING KIT (OPTION) P.31
INVENTORY RACK (OPTION) P.32
SPECIFICATIONS P.33
PERFORMANCE P.35
SAFETY CHECK SHEET P.36
2
INTRODUCTION
Read this operating instructions carefully before using the appliance and follow the instructions for
safety operation.
Our company 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 operating instructions.
Keep this operating instructions in an adequate place to refer to it as necessary.
The contents of the operating instructions will be subjected to change without notice due to the
improvement of performance or functions.
Contact our sales representative or agent if any page of the operating instructions is lost or page order
is incorrect.
Contact our sales representative or agent if any point in this operating instructions is unclear or if there
are any inaccuracies.
No part of this operating instructions may be reproduced in any form without the expressed written
permission of our company.
CAUTION
Our company guarantees the product under certain warranty conditions. Our company in no
way shall be responsible for any loss of content or damage of content.
3
PRECAUTIONS FOR SAFE OPERATION
It is imperative that the user complies with this operating instructions
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;
this symbol means caution.
this symbol means an action is prohibited.
this symbol means an instruction must be followed.
Be sure to keep this operating instructions in a place accessible to users of this unit.
< Label on the unit >
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 CO2 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.
4
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 container 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
5
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 containers 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
6
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 container 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
7
ENVIRONMENTAL CONDITIONS
This equipment is designed to be safe at least under the following conditions (based on the IEC 61010-1):
Indoor use;
Altitude up to 2000 m;
Ambient temperature 5oC to 40oC;
Maximum relative humidity 80% for temperature up to 31oC decreasing linearly to 50% relative humidity
at 40
o
C;
Mains supply voltage fluctuations up to ±10% of the nominal voltage;
Transient overvoltages up to the levels of OVERVOLTAGE CATEGORY II;
Temporary OVERVOLTAGES occurring on the mains supply;
Applicable pollution degree of the intended environment (POLUTION DEGREE 2 in most cases)
8
FREEZER COMPONENTS
7
1
5
3
11
14（inside
）
13
4
2
10
4（inside）
8
6
16
1715
12
9
9
FREEZER COMPONENTS
1. Outer door:
To open the door, grip the door latch. On closing, lock the door latch completely.
2. Door latch:
Always lock the door latch when the outer door is closed.
3. Magnetic door gasket:
This provides a tight door seal and prevents cold air leak. Keep clean.
4. Access port (rear and bottom):
This is used for leading a cable and sensor of a measuring
equipment, or nozzle of backup cooling kit to chamber.
5. Inner door:
The operation of the inner door should be quick to minimize the temperature rise in
chamber. Lock the inner door latch completely when the outer door is closed. The inner door is
removable for cleaning or defrosting. See page 21 “Routine maintenance”.
6. Lock:
Turn clockwise to 180o with a key and the outer door is securely locked.
7. Control panel:
Used for temperature setting and indication of operating status is displayed on the
digital temperature indicator. See page 10 for details.
8. Caster:
4 casters are provided to facilitate moving of the cabinet. For the installation, adjust the
leveling feet so that the front 2 casters cannot contact with the floor.
9. Leveling foot:
The height of the freezer can be adjusted by this screw type foot. Keep the unit in
level at the installation.
10. Fixture (on back side):
2 fixtures serve as spacers between the cabinet and wall and also serve as
hooks to fix the unit. See page 12 “Installation”.
11. Air intake vent (grille):
Do not block this vent to keep the proper cooling performance.
12. Power switch:
This is for turning ON/OFF the power to the unit. ON – “I” OFF – “○”
13. Space for temperature recorder:
A temperature recorder (optional component) can be attached
here. See page 29 “Temperature recorder”.
14. Condenser filter (behind the grille):
This filter prevents the dust from accumulating on the
condenser. The dusty condenser filter may cause failure of refrigerating device. Clean the condenser
filter once a month. See page 20 “Routine maintenance” for the cleaning.
15. Battery switch:
This is a switch for a battery for power failure alarm. Normally, turn on this switch.
Be sure to turn off this switch if the freezer is not in operating for the long period. (More than 1 month)
16. Remote alarm terminal:
This is used to notice an alarm condition of the unit to remote location.
Refer to page 18 “Remote alarm terminal”.
17. Space for optional component:
10
FREEZER COMPONENTS
Control panel
1. Digital temperature indicator:
This indicator shows the present chamber temperature or set
temperature.
2. Battery check lamp (BATTERY):
This lamp lights to recommend the battery replacement. This
lamp flashes to recommend the fan motor replacement. For the replacement, consult our sales
representative or agent.
3. Alarm lamp (ALARM):
This lamp is flashed during alarm condition.
4. Filter check lamp (FILTER):
This lamp lights when the excessive dust is accumulated on the
condenser filter. When this lamp lights, clean the condenser filter following the procedure on page 20.
5. Numerical value shift key ( ):
Pressing this key in the setting mode causes the numerical value to
shift. ON-OFF of key lock can be selected by pressing this key in the key lock mode. By pressing this
key for more than 5 seconds in the temperature display mode leads setting mode for alarm temperature,
alarm resume time and compressor delay time . Refer to page 15,16 and 17 for details respectively.
6. Digit shift key ( ):
Pressing this key in the setting mode causes the changeable digit to shift. Key
lock mode is led by pressing this key for more than 5 seconds in the temperature display mode. Refer to
page 14 for details.
7. Set key (SET):
Chamber temperature setting mode is led by pressing this key. The changeable digit
is flashed. Pressing this key again after temperature setting memorizes the setting.
8. Alarm test key (ALARM TEST):
To check the alarm system. Pressing this key with the battery
switch ON gets the alarm lamp to flash, the remote alarm to operate, and the buzzer to sound.
9. Buzzer stop key (BUZZER):
To silence the audible alarm under alarm condition, press this key.
The buzzer during alarm test cannot be silenced by this key.
9
8
7 6
5
4
2
1 3
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
+35
o
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.
Loading...