Sanyo MBR-1404G User manual

MBR-1404G
MBR-1404GR
Blood Bank Refrigerator
INSTRUCTION MANUAL
MBR-1404GR

1
Note:
1. No part of this manual may be reproduced in any form without the expressed written
permission of SANYO.
2. The contents of this manual are subject to change without notice.
3. Please contact SANYO if any point in this manual is unclear or if there are any
inaccuracies.
SANYO Electric Biomedical Co., Ltd. All rights reserved. Printed in Japan.
CONTENTS
PRECAUTIONS FOR SAFE OPERATION P. 2
CAUTIONS FOR USAGE P. 7
ENVIRONMENTAL CONDITIONS P. 8
REFRIGERATOR COMPONENTS P. 9
INSTALLATION P. 13
BEFORE COMMENCING OPERATION P. 15
REMOTE ALARM TERMINAL P. 15
START-UP OF UNIT P. 16
OPERATING INSTRUCTIONS P. 17
ROUTINE MAINTENANCE P. 19
TROUBLESHOOTING P. 22
DISPOSAL OF UNIT P. 22
SPECIFICATIONS P. 23
PERFORMANCE P. 23
SAFETY CHECK SHEET P. 24

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;
this symbol means caution.
this symbol means an action is prohibited.
this symbol means an instruction must be followed.
Be sure to keep this manual 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.

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. 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.
Use a dedicated power source as indicated on the rating label attached to the unit. Ensure that a
suitable fuse of adequate amperage is used to allow for compressor start up.
Remove dust from the power supply plug before inserting in a power source. A dusty plug or
improper insertion may pose a hazard.
Use a power supply outlet with ground (earth) 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.
Do not insert metal objects such as a pin or a wire into any vent, gap or any outlet for inner air
circulation. This may cause electric shock or injury by accidental contact with moving parts.
Never store volatile or flammable substances in this unit. This may cause explosion or fire.
Never store corrosive substances in this unit. This may lead to damage to the inner components
or electric parts.
Do not pull out more than 2 drawers (for MBR-1404GR) at the same time when storing or taking
out of the stocked material. This may cause injury by falling or tipping of the unit if something heavy
items are stored.
WARNING

4
PRECAUTIONS FOR SAFE OPERATION
If this unit is to be used for storing poisons, radioactive material or other harmful products,
ensure that it is in a safe area. Failure to do so may lead to an adverse effect on the health of
personnel in the area and the local environment. In this case, a request for repair or maintenance
will necessitate a safety check sheet for maintenance personnel.
Disconnect the power supply to the unit prior to any repair or maintenance of the unit in order to
prevent electric shock or injury.
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 disassemble, repair, or modify the unit yourself. Any such work carried out by an
unauthorized person may result in fire or injury due to a malfunction.
Disconnect the power supply plug before replacement of the florescent light to prevent electric
shock.
Disconnect the power supply plug if there is something wrong with the unit. Continued
abnormal operation may cause electric shock or fire.
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 undertaken by appropriate personnel. Remove doors to
prevent accidents such as suffocation.
Prepare a safety check sheet when you request any repair or maintenance for the safety of service
personnel.
WARNING

5
PRECAUTIONS FOR SAFE OPERATION
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.
Do not install the unit at a place with the possibility of something falling on it. The electric
parts are located in the upper part of this unit.
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.
Fix the shelves securely. Incomplete installation may cause injury or damage.
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.
Never damage or break the power supply plug or cord. Do not use the supply plug if its cord
is loose. This may cause fire or electric shock.
Do not touch any electrical parts such as the power supply plug or any switches with a wet hand.
This may cause electric shock.
Do not put a container with water or heavy articles on the unit. Injury may be caused if the
articles fall. Current leakage or electric shock may result from the introduction of spilled water into
electrical components.
Do not climb onto the unit. This may cause damage to the unit and cause it to tip over.
Hold the handle when closing the door. This will reduce the likelihood of a trapped finger.
Do not lean on the door. This may cause injury if the unit tips over.
Never lean or press on the glass. Excessive force may cause injury of the glass breaks.
Check the filter mentioned in this manual and clean it as necessary. A dusty filter may cause
temperature rise or failure.
Do not touch the condenser directly when the filter is removed for cleaning. This may cause injury
due to hot surface.
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.
CAUTION

6
PRECAUTIONS FOR SAFE OPERATION
Dispose of any water in the evaporation tray completely before moving the unit. Spilled or
splashed water may cause current leakage or electric shock.
Be careful not to tip the unit over during movement to prevent damage or injury.
Disconnect the power plug when the unit is not used for long periods.
Do not put the packing plastic bag used in the packaging within reach of children as suffocation
may result
CAUTION

7
CAUTIONS FOR USAGE
1. Adequate space should be provided between the items inside the unit to allow air circulation.
2. Never store corrosive materials such as acid or alkali unless the container is completely sealed up.
Corrosion may lead to failure of the unit in time.
3. In case condensation forms on the front glass or frame due to a high humidity environment, wipe if off
with a soft and dry cloth.
4. Do not clean the unit with scrubbing brushes, acid, thinner, solvents powdered soap, cleanser or hot
water. These agents can scratch the paint or cause it to peel. Plastic and rubber parts can be easily
damaged by these materials, especially solvents. When a neutral detergent is used to clean the unit,
rinse thoroughly with a cloth soaked in clean water.

8
ENVIRONMENTAL CONDITIONS
This equipment is designed to be safe at least under the following conditions (based on the IEC 1010-1):
1. Indoor use;
2. Altitude up to 2000 m;
3. Ambient temperature 5oC to 40oC
4. Maximum relative humidity 80% for temperature up to 31oCdecreasing linearly to 50% relative
humidity at 40oC;
5. Mains supply voltage fluctuations not to exceed ±10% of the nominal voltage;
6. Other supply voltage fluctuations as stated by the manufacturer.
7. Transient overvoltages according to Installation Categories (Overvoltage Categories) II; For mains
supply the minimum and normal category is II;
8. Pollution degree 2 in accordance with IEC 664.

9
REFRIGERATOR COMPONENTS
MBR-1404GR
1 23
4
5
6
7
8
91011
12 13 1415
16
17

10
REFRIGERATOR COMPONENTS
1. Front cover: Open this cover to connect to a remote alarm or when cleaning the condenser filter.
Refer to page 19.
2. Control panel: Panel opens when the right top of the lower part of the cover is pushed. Refer to
page 12.
3. Automatic temperature recorder: A 7-day type recorder is provided. For proper usage of the
recorder, see the instruction manual enclosed with the recorder.
4. Access port: This port allows cables to be passed into the cabinet.
5. Glass window: Water will sometimes condense on the glass in areas of high humidity. Wipe off the
condensation with a dry soft cloth.
6. Lock: Turn clockwise to 180owith a key and the door can be securely locked.
7. Handle: Use this when opening or closing the door.
8. Fluorescent light: 40 W white light. For the replacement, refer to page 20.
9. Light switch: This switch is used for the fluorescent light.
10. Air intake vent: Ensure this vent is never blocked. Failure to do so will result in unstable
temperature distribution.
11. Air exhaust vent: Ensure this vent is never blocked. Failure to do so will result in unstable
temperature distribution.
12. Drawer (MBR-1404GR): The items are kept in this drawer. One drawer capacity is about 40 kg.
Shelf (MBR-1404G): The items are kept in this shelf. One shelf capacity is about 40 kg.
Do not put anything on the bottom floor directly. Refer to page 16.
13. Leveling foot: Use this foot to adjust the height and level the unit.
14. Caster: For moving of the unit. At the time of installation, use the leveling foot to ensure that the
caster does not touch the floor.
15. Inner door
16. Upper monitor bottle
17. Lower monitor bottle

11
REFRIGERATOR COMPONENTS
Inside of front cover
1. Condenser filter: This filter is to prevent dust from plugging the condenser. Please clean the filter
once a month.
2. Glow starter: This is for fluorescent light. Use “FG-4P” for replacement.
3. Remote alarm terminal: Refer to page 15.
4. Spacer (rear side): This spacer keeps the unit the proper distance from the wall. This spacer is
also available for metal fitting to prevent tipping.
5. Evaporating tray (rear side): This is for evaporation of the drained water from evaporator.
6. Power switch: “｜”; ON, “○”; OFF.
7. Battery switch: ON/OFF switch of installed battery for power failure alarm. Make sure to turn on
this switch when the unit is in operation.
Note: Turn off the switch to protect the battery when the unit is not used for long periods.
1
36 4
7 2 5

12
REFRIGERATOR COMPONENTS
Control panel
1. Alarm buzzer stop key (BUZZER): Press this key to temporarily silence the buzzer in the event that
the alarm operates and buzzer sounds.
2. Temperature display (UPPER/LOWER): By pressing this key, the displayed temperature is
changed; upper monitor bottle temperature, lower monitor bottle temperature, and average temperature
of upper and lower monitor bottles are displayed in sequence.
3. Alarm test key (ALARM TEST): To check the operation of alarm buzzer, lamp, and remote alarm
terminal.
4. Calibration key (CAL): To calibrate the temperature. Normally this key is not used.
5. Digit shift key ( ): Pressing this key in the CAL mode will cause the changeable digits to move.
6. Numerical value shift key ( ): Pressing this key in the CAL mode will cause the numerical value
to change.
7. Door check lamp (DOOR): This lamp is lit when the door is ajar or open.
8. Alarm lamp (ALARM): This lamp is flashed during alarm condition.
9, 10. Temperature display monitor lamp (UPPER, LOWER): Lamp 9 is lit when upper monitor bottle
temperature is displayed. Lamp 10 is lit when lower monitor bottle temperature is displayed. Both 9
and 10 are lit when the average temperature is displayed.
11. Digital temperature display (TEMPERATURE oC): The upper or lower monitor bottle temperature
or average temperature is displayed.
7
1 2 3 4 5 6
8 9 10 11

13
INSTALLATION
Installation site
To operate this unit properly and to obtain maximum performance, install the unit in a location with the
following conditions:
1. A location not subjected to direct sunlight
Installation in a location subjected to direct sunlight may lead to inadequate cooling.
2. A location with adequate ventilation
Leave at least 10 cm around the unit for ventilation. Poor ventilation will result in a reduction of the
refrigeration capacity.
3. A location away from heat generating sources
Avoid installing the unit near heat-emitting appliances such as gas ranges or stoves. Heat can cause
inefficient refrigeration.
4. A location with a sturdy and level floor
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.
5. A location where objects will not fall on the unit
CAUTION
Never install the unit in a place where the possibility exists that an object may fall on it. There are
cooling circuits and electric components in the upper part of this unit. Current leakage or electric shock
may be caused if an object falls on it.
6. A location without flammable or corrosive gas
WARNING
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.
7. A location not prone to high humidity
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.

14
INSTALLATION
Installation
1. Remove 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 neutral
detergent and wipe it up with a wet cloth.
2. Adjust the leveling foot
Extend the leveling feet by rotating them
counterclockwise to contact them to the floor.
See Fig. 1. Ensure the unit is level.
3. Fix the unit
Two hooks are attached to the rear of the cabinet.
Fix the cabinet to the wall with these hooks and rope
or chain.
If holes can be opened on the wall, open a hole with a
10.5 mm diameter and fix the cabinet by using the
special bolt-nut supplied with this cabinet. This
bolt-nut can be used only on concrete walls. See Fig.
2.
4. Ground (earth)
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.
Caster
Leveling foot
Fig. 1
Bolt-nut
45 mm
φ10.5 mm
Fig. 2

15
BEFORE COMMENCING OPERATION
Preparation of monitor bottle
Prior to the operation of the unit, fill the monitor bottles (upper and lower) with 10% glycerol (or other
solution such as ethylene glycol) by the following procedure:
1. Remove the top and bottom drawer (or shelf).
2. Remove the monitor bottle cover as shown in the figure 1.
3. Detach the sensor from the monitor bottle.
4. To take out the bottle, remove two screws by loosening with hand
5. Pour 200 ml of 10% glycerol (or other solution) into the monitor bottle after removing the cap as shown
in the figure 2.
6. Cap the monitor bottle and return the bottle to its original position. Route the lead wire through the
hook on the wall.
7. Attach the sensor to the bottle and replace the cover on the bottle.
REMOTE ALARM TERMINAL
The terminal of remote alarm is located inside the front cover.
The signal is a dry contact.
Contact capacity is 2A, DC30V.

Output：normal: open
 abnormal: closed

Note: In the state that the power supply plug is disconnected, the remote alarm operates.
Remote alarm can be stopped by pressing alarm buzzer stop key (BUZZER) except for case of power
failure.
Fig. 1
loosen
Fig. 2
Connect
terminal

16
START-UP OF UNIT
Follow the procedures for the initial and consequent operations of the unit.

1. Connect unit to dedicated power supply. Do not put any product in the unit at this time.
2. When the power is initially applied, the audible alarm may sound. This is normal. Press the
BUZZER key to silence the alarm. The audible alarm will operate until the temperature monitor bottle
sensor goes into the range of 4oC±2oC.
3. Ensure that both monitor bottles have been filled with 10% glycerol as outlined earlier in this manual.
4. The unit has been factory preset to operate at 4oC±1.5oC. There is no need to set the temperature.
5. Proper chamber temperature may take several hours to stabilize at the set point temperature. Once
the unit has stabilized, ensure that the monitor bottle temperature agrees with the set point temperature.
6. Turn on the light switch to ensure that the chamber light is properly functional.
7. When you are satisfied that the unit is working correctly, begin slowly placing product into the chamber
to minimize the temperature rise.
Handling of containers

Arrange containers so as not to disturb air circulation
in the unit. Disturbance of air circulation may cause
freezing of contents or increase of temperature.
1. Air intake vent
Avoid the disturbance of air circulation in the unit by
containers. Disturbance of air circulation may
cause freezing of contents or rise in temperature.
2. Air exhaust vent
Do not block the exhaust air port by putting
containers near the exhaust air port. Containers
near the exhaust air port may freeze.

3. Load line
This unit determines the range of the containers to
ensure proper air circulation. Put containers in
range of the label of "Load line" which is attached on
both sides inside the unit.

Fan
A
ir intake
vent
A
ir exhaust
vent
Load line
Air circulation
Containers
Load line
Range of the
containers

17
OPERATING INSTRUCTIONS
Temperature display
The unit is set at the factory to obtain the proper temperature automatically (4oC±1.5oC). The high
temperature alarm is preset at 6oC. The low temperature alarm is preset at 2oC.
Table 1. Temperature display ●: Lamp ON ○: Lamp OFF
Operation Key
operated Display Display mode
1 Plug-in, Power ON Average monitor bottle
temperature Average temperature
2 Press temp. display key
Upper monitor bottle
temperature Upper temperature
3 Press temp. display key
Lower monitor bottle
temperature Lower temperature
4 Press temp. display key
Average monitor bottle
temperature Average temperature
5 Repeat from 2
Note: The displayed temperature represents the temperature sensed by a thermal sensor attached to
the monitor bottles mounted to the upper and lower portion of the chamber. The displayed temperature
may not always be at 4oC. The chamber probes are representative and high and low average
temperatures within the chamber.
Defrost cycles
There is no need for routine defrosting of the unit as this occurs automatically as follows:
1. Cycle defrost
To keep the temperature stable inside the chamber, the refrigeration compressor is cycled on and off.
During “off “ periods any frost which has accumulated on the evaporator is melted by energizing a defrost
heater. This will not have any discernible effect on the chamber temperature.
2. Forced defrost
When the ambient humidity is high, or a large amount of damp product is being stored inside the chamber,
there is a possibility that cycle defrost may not be enough to remove all of the frost on the evaporator. In
this case, a forced defrost cycle can be initiated. When the unit is operating under a forced defrost cycle,
the current chamber temperature and dF is displayed alternately on the digital temperature display.
Once the forced defrost cycle is complete, normal operation resumes. The chamber temperature of
blood bag (400 ml) rises about 1 to 2oC during the defrosting.
●UPPER
●LOWER
○UPPER
●LOWER
●UPPER
○LOWER
●UPPER
●LOWER
UPPER
LOWER
UPPER
LOWER
UPPER
LOWER

18
OPERATING INSTRUCTIONS
Alarm, safety function, and self diagnostic function
This unit has the alarm and safety functions shown in Table 2, and also self diagnostic function.
Table 2 Alarm and safety functions
Kind of alarm
or safety Situation Indication Buzzer Safety operation
High
temperature
alarm
If the upper or lower
temp. sensor senses a
temperature ≧6oC.
Low
temperature
alarm
If the upper or lower
temp. sensor senses a
temperature ≦2oC.
Alarm lamp flashes.
Intermittent tone. Remote alarm is active.
Over-temp.
(high) alarm
If the high-temp.
thermostat sensor
senses a temperature
approximately＞10oC.
Unit should already be
in alarm. No further
indication required.
Unit should
already be in a
high temp. alarm.
Remote alarm is
active.
Compressor ON.
Heater OFF.
Power failure
alarm
Interruption of power to
unit or power switch is
turned off.
Alarm lamp flashes.
Temp. indication off. Intermittent tone. Remote alarm is active.
Door alarm Outer door is ajar or
open. Door check lamp is lit.
Intermittent tone
after a delay of 2
minutes.
Not affected.
Auto return
No key operation on
control panel for ≧90
seconds.
Monitor bottle temp. is
displayed. ----- Calibration mode is canceled.
Upper temperature
sensor goes open or
short circuit.
Alarm lamp flashes.
Monitor bottle temp.
E1 are alternately
displayed.
Lower temperature
sensor goes open or
short circuit.
Alarm lamp flashes.
Monitor bottle temp.
E2 are alternately
displayed.
Defrost sensor goes
open or short circuit.
Alarm lamp flashes.
Monitor bottle temp.
E3 are alternately
displayed.
Thermal
sensor
abnormality
Over-temp. sensor goes
open or short circuit.
Alarm lamp flashes.
Monitor bottle temp.
E4 are alternately
displayed.
Intermittent tone Remote alarm is
active.
Note: The remote alarm contacts will activate in conjunction with the audible alarm. The remote alarm
contacts can be deactivated while pressing the BUZZER key when the unit is in alarm, except in a power
failure alarm where the contacts will remain in an alarm condition until the power failure is corrected. All
alarm functions will auto-reset. The buzzer and remote contacts will re-activate if the condition which
caused the alarm is not corrected within 30 minutes. Alarm conditions will remain active for about 24
hours on a fully charged back-up battery in the event of a power failure. Two days operation is required
to fully charge the battery after initial start-up if the power has been off for an extended period. The
remote alarm contacts will remain active even if the battery is discharged.
Alarm set procedure
Press the ALARM TEST key. The audible and visual alarm indicators will activate along with the remote
alarm contacts. The alarm condition will remain active for 90 seconds and then terminate automatically.
Otherwise the alarm test can be terminated manually at any time during the rest by pressing the ALARM
TEST key a second time.

19
ROUTINE MAINTENANCE
WARNING
Always disconnect the power supply to the unit prior to any repair or maintenance of the unit in
order to prevent electric shock or injury.
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.
Cleaning of cabinet
■Clean the unit once a month. Regular cleaning keeps the unit looking new.
■Use a dry cloth to wipe off small amounts of dirt on the outside and inside of the unit and all
accessories. If some of them are dirty, use a cloth containing diluted neutral dishwashing detergent
(Undiluted detergent may break the plastic parts. For the dilution, follow the instruction enclosed with
the detergent). When a diluted neutral dishwashing detergent is used, wipe the cabinet or accessories
thoroughly with a cloth soaked in clean water. Then wipe the cabinet or accessories unit with a dry cloth
to eliminate the moisture.
■Never pour water onto or into the unit. Doing so can damage the electric shock or short circuit.
■The compressor and other mechanical part are completely sealed. This unit requires absolutely no
lubrication. There is a fan behind the compressor, so be very careful if you stick your hand into this part
of the unit.
Cleaning of condenser filter
1. Lift front cover by pulling firmly on both lower corners of
the panel.
2. Take out the shaft, and insert end of a shaft in black hole
of the front cover. This will keep the cover from falling
back.
3. Tug gently on black tab on lower center of condenser filter
to remove the filter.
4. Clean filter with a vacuum cleaner or water.
5. Thoroughly dry filter if using water to clean it.
6. After cleaning the condenser filter, return it to the original
position.
Front cover
Condenser
filter
Shaft