Vacc-Safe VS-25L308 User manual

EN 61326-1 :2013
Product implementation standards
EN 61010-1 :2010/A1:2019
EN 61010-2-011:2017
VS-40L308
VS-25L106
VS-40L106
USER MANUAL
MODEL:
VS-25L308
Freezer

013
Contents
1. Product Features............................................01
2. Safety Precautions .........................................02
3. Precautions for Use........................................06
4. Product Installation.........................................07
5. Product Components and Overview...............10
6. Operating Instructions ....................................13
7. Alarm Description ...........................................16
8. Maintenance...................................................17
9. Troubleshooting and Repair Service ..............19
10. Specification .................................................20
11. Packing List ..................................................21
12. Electrical Schematic Diagram.......................22
Product Features
This product is mainly intended to keep drugs, vaccines, and reagents. It is applicable
to hospitals, epidemic prevention stations, universities, scientific research institutes
and electronic chemical industry enterprise labs.
Product Functions
Accurate Temperature Control Data Traceability
data at any time
Efficient Refrigeration Effective Thermal Insulation
Famous brand compressor and optimized refrigeration system provide strong
refrigeration capacity, safety and reliability
High-performance thermal insulation layer has the good thermal insulation effect
Multi-layer 3D seal design effectively reduces refrigerating capacity loss and
frosting
Multiple Alarms Safety and Stability
Perfect acoustic and optical alarm function, allowing high- and low-temperature
alarms, power off alarm, sensor fault alarm, etc. with alarm values adjustable on
demand
Design of safety door lock improves the safety level of sample management
Ergonomics Design
It can display the temperature inside the biomedical freezer and ambient
temperature, and allows setting the high and low temperature alarm values and
the biomedical freezer temperature values as required, with the function of fault
warning and early warning.
Remote alarm function ensures real-time controllability and safe and stable
operation of the equipment.
Note: The above features are not available for all models of products, and the detailed
configuration shall be subject to the specific functions of each model.
Due to the continuous optimization of the product, the product you obtained may not be
exactly consistent with the instructions. We sincerely apologize for this.
Computer temperature control, with a display accuracy of 0.1°C
The temperature in the biomedical freezer is uniform and controllable, the
temperature range is adjustable to -25℃(VS-25L308)/-40℃(VS-40L308),
and the temperature control is accurate
Standard USB port and traceable temperature data; query and save temperature

0302
Only professional technicians or maintenance personnel for after-sales
support can disassemble and assemble the biomedical freezer. Otherwise, it
Please use the special power supply indicated on the nameplate of the
If the applied voltage is lower than 198V or higher than 242V, an automatic
voltage stabilizer of more than 4000W suitable for motor load needs to be
installed for assistance.
The power cord of this biomedical freezer is equipped with a three-prong
(grounded) plug to mate with a standard three-prong (grounded) outlet of
10A. Do not cut or remove the grounding pin of the power cord under any
circumstances. Make sure that the power plug and the outlet are connected
When the plug is removed from the power socket, it shall be held tightly, and
the wire of the plug shall not be pulled. If the wire is pulled, electric shock or
If the biomedical freezer is not operating properly, unplug the power plug.
Continued operation under abnormal conditions may cause electric shock or
Before any repair or maintenance of the biomedical freezer, always
disconnect the biomedical freezer from the power supply to prevent electric
shocks or personal injuries.
Make sure that the drugs or suspended particles inside and around the
biomedical freezer will not be inhaled during repairs and maintenance,
otherwise it may cause harm to human health.
When storing toxic, harmful, or radioactive substances, please use the
biomedical freezer in a safe area. Improper use may cause harm to health or
the environment.
Disconnect the power plug when the biomedical freezer is not in use for a
the deterioration of the power cord.
If the biomedical freezer is to be stored unused in an unsupervised area for
a long period, ensure that children do not have access to the biomedical
freezer. The disposal of the biomedical freezer shall be accomplished by the
appropriate personnel. Doors shall be removed to prevent accidents such as
If CO /LN standby system is used, a good ventilation environment must
2 2
be provided at the installation and use site. Increased carbon dioxide
concentrations in the air can asphyxiate and endanger life safety. In case
of poor ventilation, other methods must be considered to ensure a safe
environment.
Safety Precautions
Dear Vacc-Safe users:
We appreciate your trust. Thank you for using Vacc-Safe biomedical freezer. Please
carefully read the following information to better understand the Operating
Instructions and use this product, so as to prevent personal injury and damage to
items.
Safety warning signs
Warning Warning hands
pinching!
Electrocution
hazard!
Combustible
material!
Safety Precautions
Document review is required in all
cases marked with to clarify the
nature of potential hazards and the
countermeasures that must be taken.
WARNING Ignoring WARNING items may result in
serious casualties.
Acts or operations that must
be prohibited
CAUTION
Ignoring CAUTION items may result in
casualties or damage to the biomedical
freezer and related properties.
Actions or operations that
must be followed
WARNING
Please use a power socket with a grounding wire to prevent electric shock.
If the power socket is not grounded, the grounding wire must be installed by
professional technicians.
proper care is taken to prevent overturning.
location, the biomedical freezer may fall down and cause injuries.
If the power cord needs to be extended, the cross-sectional area of the
2
extension cord shall not be less than 2.5mm and the length shall not be
gas leakage, and open the doors and windows to ventilate and exhaust gas.
Do not plug or unplug the power plug of the biomedical freezer, otherwise it

0504
CAUTION
Keep the biomedical freezer clear of obstruction around it to ensure smooth
ventilation.
When it needs to restart the biomedical freezer after the biomedical freezer
is unplugged or the power to the biomedical freezer is interrupted, check the
settings of the biomedical freezer. Changes in settings may deteriorate the
stored items.
If the biomedical freezer is unplugged or the power to the biomedical freezer
is interrupted, do not restart the biomedical freezer for at least 5 minutes to
avoid damage to the compressor or system.
The filter screen shall be checked in time and cleaned. Dust-laden filter
screens can cause temperature rise or failure in the biomedical freezer.
If the power plug has dust, it needs to be cleaned in time. Improper
connection or plug filled with dust may cause heating or ignition.
After the power is cut off or the power switch is off, the setpoint shall be
checked when the power switch is restarted; otherwise, the stored items may
be damaged due to setting change.
Wear gloves during maintenance to avoid personal injuries caused by
touching sharp edges or corners.
The stored items shall not be contacted directly by hand. Direct contact
with the frozen items or the inner wall of the biomedical freezer may cause
frostbite.
Hold the handle to close the chamber door, so that the door does not pinch
fingers.
Tilt the biomedical freezer for 30° when handling or moving it.
Be careful not to trip over the biomedical freezer when handling the
biomedical freezer, so as to prevent damage to the biomedical freezer or
personnel injuries.
Do not use door handles to lift or carry equipment to prevent damage to the
biomedical freezer or personnel injuries.
Do not damage the refrigeration circuit.
Do not use electrical appliances inside the storage compartment of the
biomedical freezer, unless they are of the type recommended by the
manufacturer.
Never store corrosive substances such as acids or alkalis in the biomedical
freezer. Otherwise, these substances may cause damage to internal
components or electrical parts of the biomedical freezer.
Never store flammable, explosive, or volatile substances in the biomedical
freezer or use flammable sprays near the biomedical freezer, otherwise it
may cause an explosion or fire.
Do not leave the plastic packing bags in a place where they can be reached
by small children as this may result in suffocation accidents.
Do not climb on the biomedical freezer or put any objects on the biomedical
freezer, otherwise the biomedical freezer may fall and cause injuries or cause
damage to the biomedical freezer.
Do not use the biomedical freezer outdoors. Exposure to rain may cause an
electric leakage or electric shock.
Do not place the biomedical freezer in a humid location or a place where
the biomedical freezer is easy to be splashed with water. Otherwise, electric
leakage or electric shock will be caused due to degradation of insulation.
Do not pour water directly onto the biomedical freezer, otherwise it may
cause an electric shock or a short circuit.
Never disassemble, repair, or modify the biomedical freezer yourself.
Otherwise, it may cause fire or personal injury due to improper operation.
Do not connect the grounding wire to a gas pipe, power supply pipe,
telephone line, or lightning rod when grounding the biomedical freezer. The
above grounding may cause electric shock or other hazards.
Do not touch any electrical parts such as the power plug or operate any
switch with a wet hand, otherwise, it may cause an electric shock.
Do not put water containers or heavy objects on the biomedical freezer.
Falling objects may cause personal injuries, and spilled water may cause
degradation of insulation, resulting in an electric leakage or electric shock.
Never insert metal objects such as iron nails and wires into any vent, gap,
or air outlet on the biomedical freezer. This may cause electric shocks or
injuries by accidental contact of these objects with moving parts.
It is not allowed to tie, drag, pull, wind and bind the power cord, or damage
the power cord plug. Damaged power cords or plugs may cause fire or
electric shock.
The power cord with a loose plug is not allowed, because it may cause fire or
electric shock.
It is not allowed to put glass bottles or canned items in the biomedical
freezer, which may be frozen and cracked, causing injury to personnel.

0706
Product Installation
Installation Environment
ÌAmbient temperature: 10 °C~32 °C; ideal temperature: 18 °C~25 °C; air
conditioning system shall be used if necessary.
ÌAmbient humidity: below 80% RH. The humidity shall be less than 60% Rh if the
maximum operating temperature is 32 °C.
ÌAvoid large amounts of dust.
ÌAvoid mechanical rocking or vibration.
ÌAltitude of working position of biomedical freezer: lower than 2000m.
ÌInput voltage: within 220V±10%.
ÌThe biomedical freezer is sensitive to ambient temperature. If installed in an
environment other than the above, the biomedical freezer cannot operate
normally. Please use it after improving the environment.
ÌDo not install the biomedical freezer outdoors. Exposure to rain may cause an
electric leakage or electric shock.
Installation Site
ÌIt shall not be installed in a narrow and closed space. The door body of the room
where the biomedical freezer is placed shall not be smaller than or lower than
the biomedical freezer, or at least the normal access of the equipment shall be
ensured, so as to avoid maintenance di翿culties in the event of equipment failure
and causing damage to the stored items due to failure of repairing the equipment
in time.
ÌThe ground for installation must be solid and flat, non-combustible and able to
withstand the weight of the equipment during operation.
ÌGood ventilation, no direct sunlight.
ÌEach refrigerator-freezer shall be provided with an independent power socket.
Please ensure that the power socket shall carry a current of ≥ 10A and the plug
shall be firmly connected to the socket. The power cord shall not be twisted or
pressed.
ÌCheck the working voltage before use. A voltage stabilizer suitable for the
equipment load shall be considered for use in areas with unstable voltage. The
voltage stabilizer power shall be more than 4000W to ensure that the input
voltage requirements in the installation environment are met.
ÌThe equipment shall be grounded securely. If the power cord socket is equipped
with a grounding wire, check that the grounding is good before use. If the socket
is not equipped with a grounding wire, be sure to have a professional engineer
install the grounding wire.
WARNING
ÌDo not connect the grounding wire to a gas pipe, water pipe,
telephone line, or lightning rod when grounding the biomedical
freezer, otherwise it may cause an electric shock.
ÌThe power plug must be accessible after installation to facilitate
timely unplugging of the power cord in case of emergency. Do
not block the vent of the biomedical freezer.
Precautions for Use
ÌWhen the biomedical freezer is running, the left and right rear sides of the biomedical
freezer may be heated, which is not a fault. In order to prevent condensation around
the biomedical freezer housing, the condensate pipe is installed.
ÌBefore putting items into the equipment, confirm that the temperature in the
storage chamber has reached the set temperature, and then put the items in
batches. Do not put in items for more than 1/3 of the volume of the chamber at a
time to prevent its temperature from rising too much.
ÌThe equipment temperature display is the temperature at the temperature sensor
in the storage chamber. When the equipment is initially running, the displayed
temperature is somewhat different from the actual temperature at the center of
the equipment. However, as the equipment enters a stable state, the displayed
temperature will gradually approach the actual temperature.
ÌThe equipment chamber is designed with a testing hole so that the test line
inside the chamber can be led out for test. After the testing line is pulled out,
it is necessary to plug the testing hole again with thermal insulation material,
otherwise the temperature in the biomedical freezer may not reach the set
temperature and cause condensation around the outside of the hole (applicable to
biomedical freezers with testing holes).
ÌPlease use diluted neutral cleaner to clean the equipment. Do not use brushes,
acid, gasoline, soap powder, polish or hot water to clean this equipment, otherwise
it may damage the painted surface and plastic rubber parts. Special care must be
taken not to use volatile solvents such as gasoline to wipe plastic and rubber parts.
ÌWhen the biomedical freezer is not in use for a long period, cut off the power
supply and turn off the battery switch.
ÌIf the biomedical freezer is not started again for a long time, a low battery level
may occur. After the battery switch is placed at "ON", the battery can be charged,
and the biomedical freezer can run continuously for about one week to charge the
battery (applicable to models with batteries).
ÌPlease minimize the time of opening the door during each access to the items,
so as not to cause great fluctuations in the temperature and humidity in the
biomedical freezer.
ÌAfter the door is opened, the temperature in the biomedical freezer will rise
sharply in a short time, which is normal, and it will return to set temperature of
normal operation after the door is closed.
ÌAfter the biomedical freezer has been running for a period of time, a layer of frost
is formed on the inner wall and evaporator of the biomedical freezer. If the frost
layer is too thick, it will affect the thermal insulation effect of the biomedical freezer
and increase the power consumption. Therefore, after the frost layer reaches 5
mm, the attached shovel shall be used to defrost.
ÌBefore defrosting, the frozen items in the biomedical freezer shall be taken out
and placed in an environment suitable for storage, so as not to damage the items
due to temperature rise in the biomedical freezer.
ÌThere are many refrigerating coils in the biomedical freezer. The frost from
the inner wall shall not be removed by sharp tools such as knife, ice chisel
or screwdriver. The inner wall shall not be scratched during defrosting, or the
biomedical freezer will fail.