SANYO Electric Co., Ltd. All rights reserved. Printed
of
this
of
SANYO.
of
contact
manual may be reproduced in
this
manual are
SANYO
if
any
subject
point
in
to
change
this
manual is
any
without
form
with
the expressed
notice.
unclear
or
if
written
there are
in
Japan.
any
Page 3
CONTENTS
PRECAUTIONS FOR
PRECAUTIONS FOR SAFE OPERATION
CAUTIOINS FOR USAGE
NAME AND FUNCTION OF PARTS
BEFORE COMMENCING OPERATION
AUTOMATIC TEMPERATURE RECORDER
START-UP OF UNIT
OPERATING INSTRUCTIONS
MAINTENANCE
TROUBLE SHOOTING
ENVIRONMENTAL CONDITIONS
DISPOSAL
OF
UNIT
P.
1
P.5
P.
6
P.8
P.10
P.
11
P.
12
P.
14
P.
15
P.15
P.
15
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.
the precautions advised are followed, this will
prevent possible damage to the user and any
other person.
Precautions are illustrated
way:
in
the following
If
~WARNING
SPECIFICATIONS
PERFORMANCE
SAFETY CHECK SHEET
P.
P.
P.
16
16
17
Failure to observe WARNING signs
in
could result
possibly resulting
a hazard to personnel
in
serious injury or
death.
~CAUTION
Failure to observe CAUTION signs
in
could result
damage to the unit and associated
property.
Symbol shows;
~
o
L::,
this symbol means caution.
iSl
this symbol means
o • this symbol means
followed.
injury to personnel and
an
action
is
prohibited.
an
instruction must be
Be
sure to keep this manual
accessible to users
1
of
this unit.
in
a place
Page 4
PRECAUTIONS FOR SAFE OPERATION
~WARNING
Do
o
o
not use the unit outdoors. Current
shOck
leakage or electric
is exposed to rainwater.
Only qualified engineers or service personnel
should
unqualified personnel may cause gas or liquid
leakage, electric shock or fire.
Be
the floor
site is not adequate, this may result
from the unit
install the unit. The installation
sure
to
install the unit
is
not strong enough
falling or tipping over.
may result
on
a sturdy floor.
or
if
the
unit
by
the installation
in
injury
If
Never ground the unit through a gas pipe,
main,
water
Such grounding may cause electric shock
the case of
Do
not insert metal objects such as a
wire into any vent, gap or any outlet for inner
air circulation. This may cause electric shock
or injury
parts.
Never store volatile or flammable substances
in
this unit. This may cause explosion or fire.
telephone line or lightening
an
incomplete circuit.
by
accidental contact with moving
pin
rod.
in
or a
o
o
e
Never
place where it is
Deterioration of the insulation may result which
could cause current leakage
Never
location. This may cause explosion
Never
gases are present as current leakage or
electric shock may result due to corrosion.
Make sure a dedicated power source
as indicated
unit.
Make sure to remove dust from the power
supply
A dusty plug or improper insertion may pose a
hazard.
Use a power supply outlet with ground (earth)
to prevent electric shock.
outlet
install a ground
install the unit
install the unit
install the unit where acid or corrosive
on
the
plug
before inserting
is
not grounded, it will
by
in
a humid place or a
likely
to
be
splashed
or
electric shock.
in
a flammable or volatile
rating label attached
in
a power source.
If the power supply
be
qualified engineers.
by
water.
or
fire.
is
used
to
necessary
the
to
o
o
Never store corrosive substances in this unit.
lead
to
This may
components or electric parts.
Make sure to use this unit
treating the poison, harmful or radiate articles.
Improper use may cause
health or environment.
to
Make sure
when
you
fO!
the
safety of service personnel.
Always disconnect the power supply
to
prior
order
Ensure
medication or aerosols from around the unit at
the time of maintenance. These may
harmful
Never splash water directly onto the unit as this
may cause electric shock or short circuit.
any repair or maintenance of the unit
to
prevent electric shock or injury.
to
prepare a safety check sheet
request
you
do
your health.
damage to the inner
in
safe area when
bad
effect
on
your
any
repair or maintenance
to
the unit
not inhale or consume
be
in
2
Page 5
PRECAUTIONS FOR SAFE OPERATION
~WARNING
I
o
o
o
Never disassemble, repair, or modify the unit
yourself. Any such work carried out
unauthorized person may result
due
to
a malfunction.
Make the power supply to
disconnected when the fluorescent light
replaced as this will prevent electric
Disconnect the power supply
something wrong with the unit. Continued
abnormal operation may cause electric shock
fire.
or
in
plug
by
fire or injury
the
unit
S110ck.
if
there
an
~CAUTION
Select a level
This precaution will prevent the unit from
tipping.
water spillage or injury from the unit tipping
over.
Do
not install the unit where objects may fall
it.
The
part of this unit.
Connect the unit
on
the
rating label attached to the unit. Use of
any
other voltage or frequency other than that
on
the
rating label
shock.
Fix
the
shelves securely. Incomplete
installation
and
sturdy floor for installation.
Improper installation may result
electric parts are located
to
a power source
may
cause fire or electric
may cause injury or damage.
in
the upper
as
indicated
in
on
is
is
is
o
o
o
If
the unit is to
unsupervised area for
ensure that children
doors cannot
The disposal
accomplished
Always
such as suffocation.
When removing the
supply outlet, grip the power supply plug, not
the cord.
electric shock or fire
Never damage or break
or cord.
is
Do not touch any
power
hand. This may cause
Do
articles
falling down of
or electric shock may
deterioration of
remove doors
PUlling
Do
loose. This may cause fire or electric shock.
supply plug or any switches with a wet
not put a container with water or heavy
on
the unit. It may cause injury
be
stored unused
an
extended period
do
not have access
be
closed completely.
of
the unit should
appropriate personnel.
by
to
prevent accidents
plug
from the power
the cord may result
by
short circuit.
the
power supply plug
not use the supply plug
electrical parts such
electric shock.
th·e
articles. Current leakage
be
resulted from the
insulation
by
spilled water.
in
if
its cord
as
an
and
be
in
the
by
Do
not climb onto the unit or
on
the unit. This may cause injury
to
or damage
3
the unit.
do
not put articles
by
turning
Page 6
PRECAUTIONS FOR SAFE OPERATION
~CAUTION
o
Always
This will prevent the
finger.
Never
force may cause injury if the glass breaks.
Do
injury if
Check
clean it
cause temperature rise or failure.
Never touch the condenser
filter is removed for cleaning Surfaces may
be
not
hot.
hold
the handle when closing the door.
likelihood of a trapped
lean
or press
lean
on
the
unit tips over.
the
filter mentioned
as
necessary. The dusty filter may
on
the glass. Intentional
the door. This may cause
in
this manual and
directly when the
o
o
c
Always disconnect the power supply
before moving the unit during transit. Take
to
care not
damaged cord may cause electric shock or fire.
Dispose of water
completely. Spilled water or splashed water
may cause current leakage or fire.
careful not to tip over the unit during
Be
movement
Always disconnect the power plug
unit is not used for long periods.
Do not put the packing
of
children as suffocation may result.
damage the power
in
the evaporation
to
prevent damage
plastic
cord.
or
injury.
when
bag
within reach
plug
The
try.
the
4
Page 7
CAUTIONS FOR USAGE
G) If the unit
interrupted,
This protects the compressor.
® This inner cabinet
circulation of cooled air inside the chamber.
that the intake and exhaust vents are not blocked.
@ Adequate space should
items inside the unit to allow air circulation.
@ Never store corrosive materials such as
alkali unless the container
Corrosion may lead to failure
is
unplugged or the power to the unit
do
not restart the unit for at least 5 minutes.
is
refrigerated
be
provided between
is
completely sealed
of
the unit
by
in
time.
the forced
Ensure
acid
@ Once the chamber temperature has stabilized,
the items into the chamber
minimize the temperature increase.
® Fix the shelves securely. Place items
shelves
cabinet
not place items
(J)
always operate immediately. After a few minutes,
fan operates properly.
When
and
leave a space between the walls of
and
the contents
on
the floor of the chamber.
the
power plug-in the unit, the fan does
in
small batches
to
allow air circulation.
on
the
or
up.
put
to
the
the
Do
not
the
is
® For some time after
when the ambient temperature
walls may heat
malfunction.
preventative/power economy function
satisfactorily. Hot gases are piped from the motor
compressor along the front edges of the cabinet to
prevent dew condensation.
@ If condensation forms
surface, wipe it off with a soft, dry cloth.
@l
Do
not clean the unit with scrubbing brushes, acid,
thinner, solvents, powdered soap, cleanser
These agents
Plastic and rubber parts
these materials, especially solvents. When a neutral
detergent
with a cloth soaked
!TIl
If
an
placed inside the cabinet, the cable
the access port
After installation, a rubber cap should
the access
temperature uniformity inside the cabinet and lead to
condensation
can
is
used
instrument requiring a power source is to be
on
port.
on
the outside of the access port.
the
unit has been started, or
is
fairly high, the cabinet
up.
This does not indicate a
It indicates that the dew
is
on
the front glass
scratch the paint or cause it to peel.
can
be
easily damaged by
to
clean
the unit, rinse thoroughly
in
clean
water.
can
be
the
left hand side of the cabinet.
be
Failure to
do
this
can
performing
or
frame
or
hot water.
led through
used
to
seal
affect the
Caution for model with
This unit is equipped with the circuit breaker
back. Make sure this breaker is switched
before the unit is started to run.
When
breaker, contact a dealer
disconnected the power supply plug.
the operation
•
of
the unit is stopped by this
or
a service station after
Circuit
breaker
ON
t:JZ::;:::r-
CE
on
the
mark
5
Never disassemble, repair, or modify the unit
such
yourself. Any
unauthorized person may result
to
a malfunction.
due
Disconnect the power supply
something wrong with the unit. Continued
abnormal operation may cause electric shock
or fire .
Connect the unit
on
the rating
any other voltage or frequency other than that
on
the
shock.
rating
label
label
work carried out
in
plug
to
a power source as indicated
attached
may cause fire or electric
to
the unit. Use of
by
fire
or
injury
if there is
an
Page 8
NAME AND FUNCTION OF PARTS
MPR-311 D(H)
.
-
-
IIIII
"-
.-.
..""'''
'
..
1 i
~
..
.
@
(Q)
@
@
@
-~
---
ii~r
i
il
i
;
,
-®
,..
..L
-
\lJ
1-,@
I~@
I
,
r-;c-
I
Drawer
."
_
..
_.
__
-_._
MPR-311DR(H)
.L~
.•
__
.•
--<.
([)
Door
Consists
film.
of
double pair glass with heat
ray
® Frame (Product unit)
@ Fluorescent lamp
20W
white light. For replacement, refer to page
@ Air circulating fan
Circulate the cooled air
(Q)
Air intake vent
@ Air exhaust vent
CD
Monitoring hole
This
hole allows cables to be passed into the cabinet.
@Lock
in
chamber.
® Circuit breaker install position
reflection
13.
®
@Caster
For moving
the height adjusting screw to
® Height adjusting screw
Adjust the height
the unit.
@ Door switch (MPR-311 D(H) only)
@ Temperature recorder install position
@ Evaporating tray
Place
removing.
@Shelf
@ Control panel
® Thermometer (MPR-311 (H) only)
of
in
rear bottom
the unit. At the time
by
screw bolt used to level and install
of
the frame. Pull out forward for
of
level the unit.
installation, use
6
Page 9
NAME AND FUNCTION OF PARTS
I Control panel
®
0'
El
0"
. -
II
0 0
DEFROST
_:.All
0
""
~"
._.
..
MPR·311(H)
II
\,0
0'
TeMP.
"
CONTROL
"
0
UGHT
®@@
0'
El
0"
.=.
cD
Buzzer switch (BUZZER)
By
sliding this switch to OFF position, the buzzer can
silenced when the alarm is activated.
be
0
DEFROST
0
w,'m.
.~-
II
MPR·311D(H), MPR·311DR(H)
® Defrost lamp (DEFROST)
lamp is lit during defrosting.
This
@ High temperature alarm lamp (HIGH TEMP.)
lamp is lit during high temperature alarm condition.
This
@ Door check lamp (DOOR)
This lamp is lit when the door is open. (MPR·311 D(H),
MPR·311 DR(H))
@ Digital temperature display
This indicator shows the chamber temperature or set
temperature. (MPR·311D(H), MPR·311DR(H))
@
0
sll
o~.
"
lEMPERATIJRE
@ Set button (PUSH SET)
The set temperature
pressed. (MPR·311D(H), MPR·311DR(H))
r:v
Temperature control knob
This knob is for setting a desired temperature.
AA
0 0
~~
'ow
,~
lEMP.
"~
CONTROL
®
UGHT
is
displayed while this button is
® Fluorescent lamp switch (LIGHT)
on
To turn
the both sides
the
light, press this switch again.
the light, keep
of
a fluorescent lamp is lit. To turn off
on
pressing this switch until
® Power supply lamp
This lamp is lit when the power is supplied to the unit.
(MPR·311(H)
only)
7
Page 10
BEFORE COMMENCING OPERATION
Installation site
To operate this unit property and
conditions.
<D
A location not subjected to direct sunlight
Installation
may
lead·
in
a location subjected
to
inadequate cooling.
to
obtain maximum performance, install the unit
to
direct sunlight
® A location with adequate ventilation
Leave at least 10cm around the unit for ventilation.
Poor ventilation result
capability.
@ A location far from heat generating sources
Avoid installing the unit near heat-emitting appliances
such as gas ranges or stoves. Heat
inefficient refrigeration.
@ A location with a sturdy and level floor
in
a reduction of the refrigeration
can
cause.
&'WARNING
o Be sure to install the unit
If the floor is not strong enough or the
is
installation site
result
in
injury from the unit falling or tipping
over.
not adequate, this may
on
a sturdy floor.
~CAUTION
o Select a level and sturdy floor for
installation. This precaution prevents the
unit from tipping.
in
may result
the unit tipping over.
water spillage or injury from
Improper installation
in
a location with the following
@ A location not prone to high humidity
&'WARNING
'"
\.Y
'"
\.Y
'"
\.Y
@ A location without a flammable
Do
not use the unit outdoors. Current
leakage or electric shock may result if the
unit
is
exposed
Never install the unit
place where it is likely to
water. Deterioration
resultwhich could cause current leakage or
electric shock.
Do
not install the unit under the piping for
water main and lor vapor. Deterioration of
. the insulation may cause current leakage
or electric shock.
to
rainwater.
in
a humid place or a
be
of
the insulation may
or
corrosive gas
&'WARNING
'"
\.Y
'"
\.Y
Never install the unit near 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
corrosion.
splashed
result due to
by
Install the unit
and noise.
will cause vibration
on
Placing the unit
a sturdy floor
on
and
noise.
to
avoid vibration
an
unsteady floor
8
Page 11
BEFORE COMMENCING OPERATION
. . .
"'
I Installation
<D
Remove
Remove
tapes. Open the doors
outside
detergent and rinse with water.
®
Adjust
Extend
counterclockwise
the
packaging materials and tapes
all transportation packaging materials
and
panels are dirty, clean them with a
the
height adjusting screws
the height adjusting screws
to
contact them to
lb
JJ
~I
e
'\
Height
adjusting
screw
and
ventilate the unit. If the
mild
by
rotating them
the
floor.
!
0
l/
./"~
@Grounding
&WARNING
..
velectric
Use
an
outlet with ground
shock.
with ground, it is necessary
by
ground
Never ground the unit through a gas pipe,
qualified engineers.
In
the case of
o water main, telephone line or lightening
Such wiring may cause electric shock
of
case
incomplete ground.
to
no
to
prevent
outlet
provide
rod.
in
the
@ Fix the
Two hooks are attached
the cabinet to the
chain.
unit
wall with these hooks and
='"""-=-......,=
-=
~"
to
the
rear of the cabinet. Fix
rope
-==~-
---:-~~.
~
/
Hook
or
9
Page 12
AUTOMATIC TEMPERATUER RECORDER
I Automatic temperature recorder (optional)
To record the chamber temperature, an optional automatic temperature recorder is available. Please consult with
our
sales department
The available recorder model is MTR-0620LH. Moreover, a mounting kit (MDF-53RO(H)) is also necessary for
MPR-311 (H). Refer to an instruction
or
agency for recorder installation.
manual attached to a recorder for the recorder installation .
. 1 Installation
Following shows the procedure for installing a temperature recorder to the unit MPR-311 D(H) and MPR-311 DR(H).
(j)
Take out a recorder from the package. Make sure
to keep the instruction
accessible place.
@ Remove the mounting panel by opening and lifting it
up.
manual and warranty card
® Wire the harness provided with the recorder properly
as shown
@ Remove the cover from the mounting panel.
in
the figure.
® Fix the recorder to the mounting panel with two
screws.
of
temperature recorder
® Install the mounting panel.
in
an
.'"-....
r:J)
passing through the monitoring hole
@ After installation, power
temperature
temperature indicator
upper
Setting
Open
alarm needle (red) and lower limit temperature alarm
needle (blue) manually
the scale. Both the upper and lower alarm needles
should
temperature
Route the recorder sensor into the chamber
on
the back side.
on
the unit. Check that the
alarm is operated properly when the
needle (yellow) is matched to the
limit temperature alarm needle (red).
of
iemperature alarm needle
the cover and set the upper limit temperature
to the required temperature
be set at least
of
limit temperature = set tem perature of the
Upper
thermostat
Lower limit temperature = set temperature
thermostat minus more than
plus more than
3°C
apart from the set
the thermostat.
3°C
3°C
by
of
on
the
10
Page 13
START-UP OF UNIT
The following procedure should
<D
Connect unit to dedicated power supply. Do not put
any
product
® When the power
may sound.
the alarm.
@ Set the desired temperature.
Handling
Arrange containers not to disturb air circulation
containers or incline
<D
Air
Avoid the disturbance
containers. Disturbance
freeze
®
Air
Do
not disturb the exhaust air port
near the exhaust air port. Containers near the exhaust
air port may freeze when the unit runs with
temperature (less than
in
the unit
is
initially applied, the audible alarm
Set the BUZZER switch to OFF to silence
of
intake
vent
of
containers or incline
exhaust
vent
at
of
of
5°C).
be
adhered to for initial start-up and continuous operation.
this time.
the containers
in
temperature.
air circulation
of
air circulation may causes
of
temperature.
in
the unit
by
putting containers
the unit. Disturbance
by
low
@ Check that the chamber temperature has reached to
the desired temperature.
@
When
correctly, begin slowly placing product into the chamber
to minimize the temperature rise.
Note:
Never store the material of corrosive such
alkaline
It may cause poor cool
from corrosion
you are satisfied that the unit
of
air circulation may cause freeze
of
which container is not sealed
by
refrigerant leakage resulted
of
the evaporator.
is
as
up
completely.
working
of
acid or
~I
_D_ef_r_os_t_c~y_c_le_s
There are two types
1. Cycle
To keep the temperature stable inside the chamber, the
refrigeration compressor
the "off' periods
the refrigeration coils
heater, this will not have any discernable effect on the
chamber temperature.
defrost
of
any
______________________________
defrost cycles present
is
cycled
frost which has accumulated on
is
melted
on
and off. During
by
energizing a small
in
this blood bank refrigerator, and both cycles occur automatically.
2.
Forced
When ambient humidity
damp product
there is a possibility that cycle defrost may not be
enough to remove
coils. In this case, a forced defrost
initiated. While the unit
defrost cycle, the defrost lamp on the control panel will
be lit.
normal operation will resume. The chamber
temperature rises to about
defrost
is
being stored inside the refrigerator,
all
Once the forced defrost cycle
is
high, or a large amount
of
the frost
is
10°C
on
the refrigeration
operating under a forced
during the defrosting.
~1
of
cycle will be
is
complete,
11
Page 14
OPERATING INSTRUCTIONS
I Temperature set
Set
up
of
chamber
.-;
Table 1 and 2 show the basic operation method. Follow the key operation sequence indicated
example
factory to obtain the proper temperature
in
the table is based on the assumption that the chamber temperature set at 1
tern perature
(5°C) automatically.
in
the table. The
GOC.
The unit is set at the
Table 1
1
2
Note:
An accurate chamber temperature is necessary, put a standard thermometer at the center
temperature
Table 2 For MPR-311 D(H), MPR-311 DR(H)
1
For MPR-311 (H)
Operation Description
Connect the power
supply outlet.
Set the temperature control knob to 1
display
Connect the power
supply outlet.
supply plug to a dedicated power The power supply lamp is lit.
of
the thermometer for the setting
Operation
supply plug to a dedicated power
GOC.
The chamber temperature is gradually decreased.
of
chamber temperature.
Current chamber temperature is
indicator.
chamber tem perature is over
Description
display is flashed when the
(The
aOc.
Set the temperature control knob to 1
2
screw driver with pressing the set button.
GOC
by using a
The chamber temperature is
(The set temperature is
button is pressed.)
displayed while the set
of
the chamber. Refer to the
displayed
15°C
or
gradually decreased.
on
the
lower than
12
Page 15
OPERATING INSTRUCTIONS
I Alarm, Safety function and Self diagnostic function
This unit has the alarm and safety functions shown
Table 3
Alarm
High temp.
Low temp. alarm
Note: The alarm buzzer can be canceled
Table
Alarm
High temp.
Low temp. alarm
Door alarm
Thermal sensor
abnormality
Note: The alarm buzzer can be canceled by turning the buzzer switch to OFF.
Alarm and safety functions (MPR-311
or
safety
alarm
Alarm and safety functions (MPR-311 D(H), MPR-311 DR(H))
4
or
safety
alarm
The
more than about 20°C. lit.
The chamber temp. is less
than about
The
more than
The
more than about
The
than
The
than about
When
If the thermal sensor is
disconnected.
If the thermal sensor is
short circuited.
If
the defrost sensor is
disconnected.
If
the defrost sensor is
short circuited.·
Situation
chamber temp. is High temp. alarm lamp is Pulse tone
_2°C.
by
Situation
chamber temp. is
15°C.
chamber temp. is
20°C. lit.
chamber temp. is less All digits on the temp.
DOC.
chamber temp. is less
_2°C.
the door is opened.
in
Table 3 and Table
H))
Indication Buzzer
Defrost lamp is lit. Pulse tone
turning the buzzer switch to OFF.
Indication Buzzer Safety operation
Temperature
fiashed.
High temp.
display are flashed.
Defrost lamp is lit. Pulse tone
Door check
E1
and chamber temp. is
displayed alternately.
E2 and chamber temp. is
displayed alternately.
E3 and chamber temp. is
displayed alternately.
E4 and chamber temp. is
displayed alternately.
display is Pulse tone
alarm lamp is Pulse tone
lamp is lit.
4,
and also a self diagnostic function.
Pulse tone
Pulse
delay
Pulse tone
Pulse tone
tone after
of
30
seconds
-----
-----
Safety operation
~----
-----
-----
-----
----
Running with
defrost sensor
Running with
defrost sensor
---
----
13
Page 16
MAINTENANCE
..
Disconnect Always
~
supply to the unit
maintenance of the
electric shock or injury.
Cleaning
disconnect the power
prior to any repair or
in
unit
order to prevent
&WARNING
'"
\.y
Ensure
medication or aerosols from around the unit a
. the time of maintenance. These may
harmful to your health.
you
do
not inhale or consume
be
G) Clean this unit once a month. Regular cleaning
keeps the unit looking
® Use a dry cloth
the outside and inside of the unit
If
the unit
is
very dirty, use a neutral detergent.
new.
to
wipe off small amounts of dirt
and
all accessories.
on
® After cleaning, wipe away the cleaner completely
by
with a cloth washed
Replacement
G) Disconnect the power supply plug.
® Remove all shelves or drawers.
® Remove the two screws fixing the lamp shade.
@ Pull the fluorescent light downwards and take it
@ Replace the light.
@ After the replacement, install the shade
position.
clean water.
of
fluorescent light
to
it
original
out.
@ Never pour water onto or into the unit. Doing
can
damage the electrical insulation and may cause
electric shock or short circuit.
@
The
compressor
completely sealed. This unit requires absolutely
lubrication. There
be
very careful
unit.
if
you
and
other mechanical parts
is a fan
stick your
behind the compressor,
hand
into this part of
so
are
no
so
the
Cleaning
G) Clean the evaporation tray twice or three times
year. The evaporating tray is placed
bottom side
® Remove the fix plate
®
Pull
completely.
@ After the cleaning, replace the fix plate
position.
of
the evaporating tray towards front
of
the unit.
evaporating tray
in
the rear
by
pulling the clip towards front.
and
clean it
to
its original
in
and
a
14
Page 17
TROUBLE SHOOTING
If
the unit malfunctions, check out the following before calling for service.
1.
If
nothing operates even when switched
1)
Is unit connected to the power supply?
2)
Is there a power failure?
3)
Is the fuse blown.or the circuit breaker inactivated?
2. When alarm is activated
When alarm lamp and buzzer are activated, follow
procedures, to determine a cause.
1)
On start-up
Does the temperature
2)
In
use
Was
the door kept opened for long time? Were
of
containers
In
this case, alarm is removed automatically by running
high temperature (load) put
in
the unit match set value? .
on
in
the unit?
the unit for several hours.
3.
When unit does not get cold enough
1)
Is air exhaust vent blocked
2)
Was
unit?
3)
Is there nearly heat source?
4)
Is the door opened frequently?
5)
Is ambient temperature too high?
6)
Is the unit
7)
Is the door securely closed?
8)
inserted
a large amount
Is
the
door
between
of
in
direct sunlight?
seal
damaged
door
gaskets?
up
with containers?
warm product put
or
foreign
substance
in
the
ENVIRONMENTAL CONDITIONS
This equipment is designed to be safe at least under Ihe following conditions:
5.
1.
Indoor use;
2.
Altitude up to 2000
3.
Ambient temperature
4. Maximum relative humidity 80% for temperature
to
31°C
decreasing linearly to 50% relative humidity at
40°C;
m;
5°C
to 40°C;
up
Mains supply voltage fluctuations
manufacturer;
6. Transient overvoltages according to Installation
Categories (Overvoltage Categoires)
supply the minimum and normal category is
7.
Pollution degree 2
DISPOSAL OF UNIT
LtWARNING
When the unit is stored
access and make sure the doors cannot be closed completely.
O
in
an
unsupervised area for an extended period, ensure that children
as
stated by the
II;
in
accordance with IEC 664.
do
not have
For mains
II;
The disposal of the unit should be undertaken by appropriate personnel. Always remove doors to
prevent accidents such as suffocation.
O
15
Page 18
SPECIFICATIONS
Name
Model MPR-311(H) MPR-311 D(H) • MPR-311DR(H)
External
Internal dimensions
Effective capacity
Exterior
Interior
Door
Insulation Rigid polyurethane foamed-in place (CFC-FREE)
Shelves
Cooling method Forced cool air circulation
Compressor Hermetic type, Motor output;
Fan
Condenser
Evaporator Wire tube type
Refrigerant R-412A
Defrosting
Defrost heater
Temperature
Thermometer
Fluorescent
High temp.
Low temp. alarm Buzzer, Defrost lamp
Door alarm
Accessories
Option
Weight
dimensions
Acrylic finish baked on zinc galvanized steel
Acrylic
motor Output; 1 W
controller Electronic control system Microprocessor control system