1
CONTENTS
INTRODUCTION2
PRECAUTIONS FOR SAFE OPERATION ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ3
ENVIRONMENTAL CONDITIONS ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ7
REFRIGERATOR COMPONENTS
Refrigerator unit ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ8
Control panel components ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 1 0
INSTALLATION SITE ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 11
INSTALLATION ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 12
START-UP OF UNIT ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 13
SETTING OF CHAMBER TEMPERATURE ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 14
LOCK OF TEMPERATURE SETTING ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 1 5
STOP OF FREEZER OPERATION ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 16
DEFROSTING
Defrosting of refrigerator ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 17
Defrosting of freezer ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 17
SETTING OF ALARM (REFRIGERATOR)
Setting of high temperature alarm ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 18
Setting of low temperature alarm ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 19
SETTING OF ALARM (FREEZER)
Setting of high temperature alarm ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 20
Setting of low temperature alarm ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 21
SETTING OF ALARM BUZZER RECOVERY ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 22
OPERATION CHECK AFTER RECOVERY ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 23
ALARM FUNCTIONS ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 24
SAFETY FUNCTIONS ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 24
SELF DIAGNOSTIC FUNCTIONS ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 25
ROUTINE MAINTENANCE
Cleaning of exterior, interior, and accessories ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 26
Replacement of lamp ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 27
TROUBLESHOOTING ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 28
DISPOSAL OF UNIT ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 29
Decontamination of unit ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 29
OPTIONAL COMPONENT
Temperature recorder ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 34
Installation of MTR-0621LH (1) ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 35
Installation of MTR-0621LH (2) ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 36
Installation of MTR-4015LH ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 38
Installation of MTR-G3504A or MTR-G3504C ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 40
SPECIFICATIONS ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 42
PERFORMANCE ꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 43
SAFETY CHECK SHEETꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏꞏ 44
2
INTRODUCTION
Read the operating instructions carefully before using the appliance and follow the instructions for
safety operation.
PHC Corporation never guarantees any safety if the appliance is used for any objects other than
intended use or used by any procedures other than those mentioned in the operating instructions.
Keep the 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 the operating instructions is unclear or if there
are any inaccuracies.
No part of the operating instructions may be reproduced in any form without the expressed written
permission of PHC Corporation.
IMPORTANT NOTICE
PHC Corporation guarantees this product under certain warranty conditions. However, please note
that PHC Corporation shall not be responsible for any loss or damage to the contents of the product.
<Intended Use>
This equipment is designed for storage of pharmaceuticals, samples and reagents.
3
PRECAUTIONS FOR SAFE OPERATION
It is imperative that the user complies with the 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.
T
his symbol means an action is prohibited.
This symbol means an instruction must be followed.
Be sure to keep the operating instructions in a place accessible to users of this unit.
< Labels 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 service personnel only.
This symbol indicates a hot surface.
This symbol indicates that caution is required. Refer to product documentation for details.
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 power supply cord or plug may cause fire or electric shock.
Do not use the power supply cord if its plug is loose. Such power 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 power supply plug from the power supply outlet, grip the power supply
plug, not the cord. Pulling the power supply 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
supply cord. A damaged power supply cord may cause electric shock or fire.
Disconnect the power supply 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 are locked completely with a key.
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.
Do not position this unit and the other unit so that it is difficult to operate the disconnection of
the power supply plug. Failure to disconnect the power supply plug may cause fire if there is
something wrong with the unit.
WARNING
6
PRECAUTIONS FOR SAFE OPERATION
This unit must be plugged into a dedicated circuit protected by branch circuit breaker.
Use a dedicated power source as indicated on the rating label attached to the unit. A
multiple-tap 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 power supply plug or improper insertion may cause a heat or ignition.
Never store corrosive substances such as acids or alkalis in the unit except in a sealed
container. These may be detrimental to health and may cause corrosion of internal components,
cooling circuit or electrical components.
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 (copy the last page) 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;
Temperature 5 oC to 40 oC
Maximum relative humidity 80 % for temperature up to 31 oC decreasing linearly to 50 % relative
humidity at 40 oC;
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 (POLLUTION DEGREE 2 in most cases);
8
REFRIGERATOR COMPONENTS
Refrigerator unit
Door gaske
t
Lamp
[page 27]
Remote alarm terminal
[page 12]
Refrigerator
1
2
4
5
3
8
10
7
9
6
Back spacer
[page 12]
Freezer
Back side
11 (inside)
Caster
9
REFRIGERATOR COMPONENTS
1. Control panel: With the key on the control panel, temperature display can be changed and the alarm
buzzer can be canceled. Also, the running status can be checked on the temperature display and the
indicators. [page 10]
2. Keyhole: The door of refrigerator and freezer can be locked with the enclosed key.
3. Drain port (bottom of freezer): Remove the cap when the water resulting from defrosting is drained.
The drained water is evaporated in the evaporating tray under the freezer.
Replace the cap after drainage.
4. Leveling foot (front, 2 locations): These are screw bolts used to install and fix the unit. Adjust the
height of the leveling feet by turning the screw bolts until 2 front casters are away from the floor. [page 12]
5. Space for a temperature recorder: An optional temperature recorder is installed here [page 34]. For
the installation of temperature recorder, contact our sales representative or agent.
6. Shelf (for freezer): Use to store the materials in the freezer. It is recommended to store the items on
the shelf. The maximum load is 10 kg.
Never touch the storage items with wet hands. Touching with the wet hands may cause frostbite.
7. Access port (left side): This port allows a sensor or cable of measuring equipment to enter the
chamber from outside. Also, the capillary tube of temperature recorder is passed through the port.
Replace the insulations and the rubber caps when the access port is not used. Improper replacement
may cause rise of chamber temperature or condensation around the access port.
8. Air intake vent (lower back): An intake vent for circulating the air in the refrigerator chamber. Do not
block this vent. Blocking this vent may cause unstable chamber temperature. Do not insert fingers or
similar articles into the vent.
9. Shelf (for refrigerator): Use to store the items in the refrigerator. It is recommended to store the
items on the shelf. The maximum load is 20 kg per shelf.
10. Air exhaust vent (center back): An exhaust vent for circulating the air in the refrigerator chamber.
Do not block this vent. Blocking this vent may cause unstable chamber temperature. Arrange the
storage items not to subject to the cold air from this vent to avoid freezing.
11. Power switch (also served as a circuit breaker): Remove 2 screws fixing the cover and the power
switch that is also served as a circuit breaker is accessible. The round button on the left of the power
switch is a check button for circuit breaker. The operation of the circuit breaker is checked by pressing
this button.
Please be advised that the power to the unit is disconnected when the check button is pressed.
10
REFRIGERATOR COMPONENTS
Control panel components
1. Door check indicator (DOOR): The red LED lamp is lit when the refrigerator door or freezer door is
opened.
2 minutes after the door check indicator is lit, the alarm buzzer is activated to notice the door opening.
[page 24]
2. Alarm indicator (ALARM): The red LED lamp blinks during an alarm status. [page 24]
3. Temperature display indicator for freezer (FREEZER): The green LED lamp is lit when the freezer
temperature is displayed on the temperature display.
4. Temperature display indicator for refrigerator (REFRIGERATOR): The green LED lamp is lit when
the refrigerator temperature is displayed on the temperature display.
5. Temperature display: Normally this shows the refrigerator or freezer temperature and during an
alarm status, this shows a blinking refrigerator or freezer temperature [page 24]. And an error code and
a refrigerator or freezer temperature is displayed alternately when the self diagnostic function detects any
abnormality. [page 25]
6. Up arrow key ( ): Pressing this key for 5 seconds at temperature display mode causes the setting
mode. Pressing this key at setting mode makes the figure on the temperature display to change.
7. Scroll key ( ): Pressing this key at setting mode makes the digit to be inputted on the temperature
display to change. Pressing this key for 5 seconds at temperature display mode causes the setting
mode for key lock.
8. Set key (SET): Pressing this key at temperature display mode enables the temperature setting [page
14]. Pressing this is at the end of setting mode memorizes the setting.
9. Temperature display changeover key (REF./FREEZ.): By pressing this key, the displayed
temperature is changed alternately; current refrigerator temperature and current freezer temperature.
10. Alarm buzzer stop key (BUZZER): Pressing this key silences the alarm buzzer when the alarm
buzzer sounds. But the remote alarm is not canceled.
Temperature display mode: The status that the temperature display shows the refrigerator or freezer
temperature.
Setting mode: The status that the input on the temperature display is effective.
8 7 6
5 2 1 3 4
9 10
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 compliance with the following conditions may cause poor performance, failure or
accident.
A location not subjected to direct sunlight
Do not install the unit under direct sunlight. Installation in a location subjected to direct sunlight may
degrade the 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. Installing the unit under unstable ambient temperature
may result in unstable performance.
A location with a sturdy and level floor
Always install the unit on a sturdy and level floor withstanding the total weight of the unit. The uneven
floor or tilted installation may cause failure or injury. Unstable condition may cause vibration or noise.
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.
CAUTION
The unit may collect excessive frost on the evaporator if it is installed in high temperature and high
humidity location. This will cause frequent defrosting.
A location without flammable or corrosive gas
Never install the unit in a flammable or corrosive location. This may cause explosion or fire or may result
in the current leakage or electric shock by the corrosion of the electrical components.
CAUTION
Never install the unit in a location where the corrosive material such as sulfur compound is likely
to be generated (near a drainage facilities, etc). Corrosion of the copper pipe may result in
deterioration of cooling unit and consequently the failure.
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. After unpackaging
Remove all transportation packaging materials and tapes. Open the doors (refrigerator and freezer) 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.
Note:
Remove the cable tie banding the power supply cord. Prolonged banding may cause the corrosion of
the cord coating.
2. Installing the unit
Extend the leveling feet by rotating them counterclockwise
until 2 front casters separate from the floor by 5 mm to 10
mm. [Fig. 1]
And adjust the leveling foot to level the unit.
The unit is installed firmly by separating the front casters
from the floor. The unit may be moved at the time of
opening/closing the door if the front casters contact with
floor.
3. Fixing the unit
Fix the unit to the wall by using 2 back spacers and a rope
or chain. [Fig. 2]
4. Ground (earth) the unit
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.
For a 3-prong plug with grounding pole, there is no need
for electric work for grounding.
If the power supply outlet is not grounded, it will be
necessary to install a ground by qualified engineers.
5. Connection of remote alarm equipment
The alarm status is noticed to a remote location when a
remote alarm equipment (commercial item) is connected to
the remote alarm terminal. It is recommended to install a
remote alarm equipment (commercial item) when the
refrigerator is installed in a desolate location so that an
alarm status is noticed to an operator.
Contact our sales representative or agent for the
installation of a remote alarm equipment (commercial
item).
Leveling foot
Fig. 1
Back s
p
acer
Fig. 2
13
START-UP OF UNIT
Follow the procedures below when starting-up (initial and after stop due to the cleaning, maintenance or
moving) of the unit.
At the recovery from power failure, the operation is start-up automatically with the setting before power
failure.
1. With the refrigerator and freezer empty, connect the power supply cord to the dedicated outlet having
an appropriate rating, and turn on the power switch.
► The blinking refrigerator temperature is displayed on the temperature display and the alarm indicator
blinks. (This is caused by high temperature alarm function and not a malfunction.)
<Important>
5 minutes is needed to re-start the compressor. Keep 5 minutes before turning on the power switch
when the power switch is turned off.
2. The refrigerator temperature is set to 5 oC and the freezer temperature is set to -30 oC at the factory.
Set the temperature of refrigerator or freezer when other temperature setting is desired. [page 14]
The storage items may be frozen practically when the refrigerator temperature is set to 3 oC or lower.
3. On the temperature display check the refrigerator temperature reaches 5 oC and the freezer
temperature reaches -30 oC, or reaches the desired temperature
4. Check the lamp in the refrigerator is on by opening the refrigerator door.
5. Begin slowly placing items into the refrigerator and freezer to minimize the temperature rise.
<Important>
Do not block the air intake vent or air exhaust vent in the refrigerator. Arrange the storage items with
adequate space to keep the air circulation. Too much storage items in the refrigerator makes the
temperature around the air exhaust vent at -2 oC when the refrigerator temperature is set to 2 oC. It is
recommended to set the refrigerator temperature to 4 oC or 5 oC when the items that should not be frozen
are stored.
<Attention>
The refrigerator door has a condensation on the glass during operation. Wipe off the condensation with
a dry soft cloth.
14
SETTING OF CHAMBER TEMPERATURE
Set the temperature of refrigerator or freezer according to the usage condition. This unit keeps the
storage items for long period with adequate chamber temperature.
Refri
g
erator Freezer
Settin
g
ran
g
e between 2 oC and 14 oC between -35 oC and -15 oC
Initial settin
g
(
at factor
y)
5
oC -30 oC
Example: Changing the refrigerator temperature to 4 oC from 5 oC and freezer temperature to -25 oC from
-30 oC.
• Following shows an example. Change the setting as necessary.
Operation Ke
y
operated Displa
y
after operation
1
Connect the power supply cord to
the outlet and turn on the power
switch. (only when start-up)
-----
The temperature display indicator
for refrigerator is lit and the current
refrigerator temperature is displayed
with blink.
2 Press the set key. SET
The current setting of refrigerator
(005) is displayed and the second
figure 0 blinks.
3
Press the scroll key. The first figure 5 blinks.
Change 5 to 4 by pressing the up
arrow key. The display changes to 004 from
005.
4 Press the set key. SET
The setting is memorized and the
current refrigerator temperature is
displayed with blink.
5
Press the temperature display
changeover key to display the
freezer temperature.
The temperature display indicator
for freezer is lit and the current
freezer temperature is displayed
with blink.
6 Press the set key. SET
The current setting of freeze (-30) is
displayed and the second figure 3
blinks.
7
Change 3 to 2 by pressing the up
arrow key. The display changes to-20 from -30.
Press the scroll key. The first figure 0 blinks.
Change 0 to 5 by pressing the up
arrow key. The display changes to-25 from -20.
8 Press the set key. SET
The setting is memorized and the
current freezer temperature is
displayed with blink.
The setting mode returns to the temperature display mode automatically when 90 seconds has passed
without any key operation (auto-return function). In this case, the setting is not accepted.
CAUTION
It is recommended to install a temperature recorder (optional component) when items that need severe
temperature control is stored. The maximum and minimum chamber temperature can be checked.
REF.
FREEZ.
15
LOCK OF TEMPERATURE SETTING
The temperature setting of chamber can be locked to avoid accidental change. When the lock is ON,
the change of refrigerator temperature and freezer temperature is unable even if the key on the control
panel is operated.
Initial setting (at factory): Lock is OFF
Displa
y
Lock status Settin
g
of chamber temperature
L 0 Lock is OFF Enable to chan
g
e the settin
g
L 1 Lock is ON Unable to chan
g
e the settin
g
Example: Changing the lock status to ON from OFF (initial setting).
Operation Ke
y
operated Displa
y
after operation
1 (when during operation) ----- The current refrigerator or freezer
temperature is displayed.
2 Press the scroll key for 5 seconds. The L0 is displayed and the first
figure 0 blinks.
3 Press the up arrow key once. The display changes to L1.
4 Press the set key SET
The lock is ON and the current
refrigerator or freezer temperature is
displayed.
The setting mode returns to the temperature display mode automatically when 90 seconds has passed
without any key operation (auto-return function). In this case, the setting is not accepted.
16
STOP OF FREEZER OPERATION
The freezer operation can be stopped when removing the frost in the freezer chamber or no use of
freezer.
The current freezer temperature and OFF is displayed alternately when the temperature display indicator
for freezer is lit. (Only the current refrigerator temperature is displayed when the temperature display
indicator for refrigerator is lit. OFF is not displayed.)
Following shows the procedure to stop the freezer operation.
Operation Ke
y
operated Displa
y
after operation
1
Press the temperature display
change over key to display the
freezer temperature.
The temperature display indicator
for freezer is lit and the current
freezer temperature is displayed.
2 Press the set key. SET
The current setting of freezer (-25)
is displayed and the second figure 2
blinks.
3
Change 2 to 0 by pressing the up
arrow key. The display changes to -05 from
-25.
Press the scroll key. The first figure 5 blinks.
Change 5 to 0 by pressing the up
arrow key. The display changes to -00 from
-05.
4 Press the set key. SET
The current freezer temperature and
OFF is displayed alternately. (Stop
of freezer operation.)
The setting mode returns to the temperature display mode automatically when 90 seconds has passed
without any key operation (auto-return function). In this case, the setting is not accepted.
<To resume the freezer operation>
Following shows the procedure to resume the freezer operation. The operation is resumed by setting
the freezer temperature.
Example: Setting the freezer temperature to -25 oC.
• Following shows an example. Change the setting as necessary.
Operation Key operated Display after operation
1
Press the temperature display
change over key to display the
freezer temperature.
The current freezer temperature and
OFF is displayed alternately. (No
freezer operation.)
2 Press the set key. SET
The setting before stop of operation
(-00) is displayed and the second
figure 0 blinks.
3
Change 0 to 2 by pressing the up
arrow key.
The display changes to -20 from
-00.
Press the scroll key. The first figure 0 blinks.
Change 0 to 5 by pressing the up
arrow key.
The display changes to -25 from
-20.
4 Press the set key. SET
The setting is memorized and the
current freezer temperature is
displayed with blink. (Start of freezer
operation.)
The setting mode returns to the temperature display mode automatically when 90 seconds has passed
without any key operation (auto-return function). In this case, the setting is not accepted.
REF.
FREEZ.
REF.
FREEZ.
17
DEFROSTING
Defrosting of refrigerator
The following 2 types of defrosting methods is provided for the refrigerator. Both of them are controlled
automatically.
Cycle defrosting
The refrigerator temperature is kept stable by ON/OFF operation of the compressor. When the
compressor is OFF (stopped), the frost on the evaporator is melted by the heater. This defrosting never
influences to the refrigerator temperature.
Defrosting by defrost sensor
The cycle defrosting may not be sufficient to remove the frost on the evaporator when the ambient
temperature is high, the door is opened frequently, or heavy moist items are stored in the refrigerator. In
this case, the defrosting operation is started automatically when the defrost sensor detects the frost.
During the defrosting, the current refrigerator temperature and dF are displayed alternately when the
temperature display indicator for refrigerator is lit.
After completion of defrosting, dF display is disappeared and the refrigerator returns to the normal
operation.
<Important>
During the defrosting, the refrigerator temperature reaches around 10 oC temporary.
CAUTION
Too much frost is accumulated on the evaporator when the refrigerator is running under high temperature
and humidity condition. For example, the defrosting operation is started once a week when the
refrigerator is running with 2 oC setting at 30 oC, 80 % R.H.
Defrosting of freezer
The freezer has no automatic defrosting system. Stop the freezer operation and remove the frost when
the frost is accumulated in the freezer.
Following shows the procedure for defrosting.
1. Move all storage items in the freezer to other freezer.
2. Stop the freezer operation according to the procedure on page16.
The current freezer temperature and OFF are displayed alternately when the temperature display
indicator for freezer is lit. (Only the current refrigerator temperature is displayed when the temperature
display indicator for refrigerator is lit. OFF is not displayed.)
3. When the frost is disappeared, drain the defrost water through the drain port at the bottom of the
freezer. (The drained water is evaporated on the evaporating tray under the freezer.) Then, wipe off the
freezer with a dry soft cloth.
Replace the cap on the drain port after drainage.
4. Start the freezer operation according to the procedure on page 16.
5. Check that the freezer temperature reaches the set temperature and replace the storage items.
18
SETTING OF ALARM (REFRIGERATOR)
Setting of high temperature alarm
The abnormal temperature rise is notified by the blink of alarm indicator and display of refrigerator
temperature, and the alarm buzzer (15 minutes after blink) when the high temperature alarm is set.
Always set the high temperature alarm to avoid the damage of storage items due to the temperature rise.
Settable range of high temperature alarm:
Between the set temperature of refrigerator plus 2 oC and
the set temperature of refrigerator plus 14 oC
Initial setting (at factory): the set temperature of refrigerator plus 5 oC
Example: Changing the high temperature alarm to 3 oC from 5 oC plus the set temperature of refrigerator.
• Following shows an example. Change the setting as necessary.
Operation Ke
y
operated Displa
y
after operation
1
Press the temperature display
change over key to display the
refrigerator temperature.
The temperature display indicator for
refrigerator is lit and the current
refrigerator temperature is displayed.
2 Press the up arrow key for 5
seconds. F00 is displayed and the first figure 0
blinks.
3 Change 0 to 1 by pressing the up
arrow key. The display changes to F01 from
F00.
4 Press the set key. SET
The current setting of alarm (005) is
displayed and the first figure 5
blinks.
5 Change 5 to 3 by pressing the up
arrow key. The display changes to 003 from
005.
6 Press the set key. SET
The setting is memorized and the
current refrigerator temperature is
displayed.
The setting mode returns to the temperature display mode automatically when 90 seconds has passed
without any key operation (auto-return function). In this case, the setting is not accepted.
<Important>
The alarm may be activated after defrosting or when too much items are stored in the refrigerator,
depending on the setting of high temperature alarm. This is not a malfunction. The alarm is cancelled
automatically when the refrigerator temperature reaches the set temperature.
REF.
FREEZ.
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