5
6
4
.
Installation
4.1
Installatio
n e
nvironment：
Ø
Ambient temperature
：
10
℃～
32
℃
,optimal ambient temperature :18
℃～
25
℃
, air
conditioning system is required if necessary.
Ø
Relative humidity
： ≤
80%RH.
Ø
No strong vibration and no corrosive gases around.
Ø
Without the presence of a lot of dust .
Ø
No shaking or vibrating of the freezer.
Ø
Altitude of the place where the freezer is located
：≤
2000m
Ø
Input voltage
≤
115±10% (V).
Ø
No direct sunlight or any other cooling or heating source, no electromagnetic interference,
or the freezer will not run properly.
Ø
Keep the distance between the freezer and the surrounding wall of 30 cm or more, and the
air outlet must not be obstructed, pay attention to room ventilation or opening air conditioner
during the hot summer.
CAUTION.
Since the ambient temperature has a great impact on the operation of the freezer. If the
freezer is installed in the other situations instead of above conditions, the freezer will not
run properly.
4.2
Installatio
n s
ite：
This unit is a precision machine. When select a location to install this unit, keep the following
conditions for perfect performance
：
Ø
Should not be installed in a small confined space, the door of the room should not be less
than height of the present equipment.
Ø
Install the unit on a sturdy floor to avoid excessive vibration and noise.
Ø
Installing the unit in direct sunlight may cause malfunctioning and may shorten the life of the
unit. Keep good ventilation is necessary.
Ø
Do not share a socket with other equipment, plug and socket should be securely
connected
。
Ø
Socket inputs should be connected to circuit protection facilities, such as: An air switch
which the rated current is bigger than 45A.
Ø
2
If an extension cord is needed, be sure to use copper wire more than 2.5mm . The cross-
sectional area of the copper wire inside the wall connected with the power outlet must also
2
be more than 4mm .
Ø
Checking the working voltage of the place before start the freezer. A voltage stabilizer is
suggested to be used at the place where the voltage is not stable. Make sure the normal
input voltage stable at 115V ± 10% or 208V± 10%, Power of voltage stabilizer should be
more than 4KW.
Ø
Be sure to ground the unit.
Ø
Grounding prevents electric shock which occurs when the electrical insulation of the unit
becomes insufficient.
Ø
If the power cord socket is equipped with grounding wire, check the connection before use.
Ø
If the power supply outlet is not grounded, it will be necessary to install a ground by qualified
engineers.
Ÿ
Make sure of using a plug with earth provision and to ground the unit to prevent the electric
shock in the event of the current leakage.
Ÿ
Substituting a water pipe for the ground terminal will not provide proper grounding in many
instances since plastic pipes are often used for water piping.
Ÿ
Never ground the unit through a bas pipe, as it is very dangerous.
Ÿ
Never ground the unit through the telephone line or lightning rod, as large currents flow if
lightning strikes, making it very dangerous.
WARNING.
b. Check the device, accessories and document with the device as per list of packing
c. Clean
：
make a clean of the device before use it.
d
.
Before
use
,
make
sure
the
temperature
control
probe
is
immersed
in
the
test
liquid
.
4.
4 S
tanding
a. Remove all package components
（
include the protection foam inside the package
）
Caution
：
Do not put the packing plastic bag within reach of children as suffocation may result
Do
not
turn
on
the
freezer
at
once
when
the
freezer
is
well
located
,
must
wait
24
hours
for
the
first
start
.
4.5
Power on for the First Time
Operate
as
follows
for
the
first
start
：
1. Connect
the
power
cord
to
the
appropriate
socket
during
no
-
loading
。
2. Check
the
temperature
to
achieve
the
required
temperature
,
medical
refrigerator
for
normal
open
stopped
more
than
24
hours
,
after
equipment
performance
is
normal
,
can
put
a
small
amount
of
items
placed
in
medical
refrigerating
box
.(
please
store
items
in
batches
of
no
more
than
1
/
3
box
volume
each
time
.
Make
sure
the
medical freezer
is
out
of
service
,
and
have
the
normal
opening
and
stopping
for
more
than
12
hours
before
putting
into
the
other
no
more
than
1
/
3
of
the
box
volume
items
.
3. Do
not
open
the
door
during
the
cooling
process
,
will
cause
the
temperature
rise
。
4. There
must
be
an
authorized
person
responsible
for
the
freezer
in
customer's
office
,
to
check
the
operation
status
and
make
daily
record
.
The
inside
temperature
of
cabinet
will
rise
up
during
the
failure
problem
,
if
it
is
not
available
to
be
repaired
in
a
short
time
,
take
out
the
stored
items
and
transfer
to
other
safe
locations
.
5. Prior
to
put
the
articles
inside
the
freezer
,
should
check
if
the
temperature
set
range
of
this
device
is
matching
the
requirement
of
the
articles
.
6. Due
to
the
Inertia
of
refrigeration
,
there
is
a
little
difference
between
the
actual
temperature
displayed
on
the
controller
and
the
set
temperature
.
This
is
a
normal
phenomenon
.
7. Medical
freezers
are storage devices
,
do not put excess
"
hot
"
samples into the freezers at one time
,
or will
cause compressor damage after long time working
without stop
.
Attention to put in samples and set temperatures in
batches
.
8. Do not put electric devices in the freezers without permission
.
9. Do not change the setting temperature frequently within a short time
,
or the current temperature
may not reach the
setting temperature as the inertance; Do not cover sensors in the freezer whenyou put in samples and keep some distances
between the samples and the inner side of the freezer to make sure the cold air will circulate successfully in the freezer
,
or
will cause the instabilityof the inner temperature and inaccuracy of the display temperature
.
10. Operation after power failure.
11.
The
freezer
controller
has
memory
of
the
set
point
.
The
freezer
will
continue
to
follow
the
previous
operations
when
restart
the
freezer
after
the
power
failure
.
The
restart
should
be
done
after
5
minutes
in
case
to
damage
the
compressor
.
Warning
●
Do
n'
t through gas pipe, water pipe, line or lightning rod to medical grounding cooler, easy cause electric shock
●
After installation, power plug must be within reach, convenient unplug the power cord in time in case of an
emergency
●
Any
articles
shall
not
cover
medical
air
vents
of
the
medical freezer
4.
3
Preparation before using
