Vestfrost VT78 User manual

model - VT78 VT208 VT308 VT408
BIOMEDICAL SOLUTIONS
FREEZERS
GEFRIERGERÄTE
CONGÉLATEURS
USER MANUAL - EN
BEDIENUNGSANLEITUNG - DE
NOTICE D’UTILISATION - FR

Original instructions verified by

Vestfrost Solutions 3Vestfrost Solutions 3
EN
CONTENTS
WARNING� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 4
PRODUCT DESCRIPTION � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 7
Before use � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 7
Electrical connection � � � � � � � � � � � � � � � � � � � � � � � � � � � � 8
Intended use� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 9
Room climate classes� � � � � � � � � � � � � � � � � � � � � � � � � � � � 9
FREEZER COMPONENTS � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 10
Front & internal view � � � � � � � � � � � � � � � � � � � � � � � � � � � 10
Backview� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 11
Sensor placement � � � � � � � � � � � � � � � � � � � � � � � � � � � � 12
INSTALLATION AND START-UP � � � � � � � � � � � � � � � � � � � � � � � � � � � 13
Location and ventilation � � � � � � � � � � � � � � � � � � � � � � � � � 13
Mounting the wheels � � � � � � � � � � � � � � � � � � � � � � � � � � � 14
Battery backup � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 16
Porthole � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 17
Remote alarm function � � � � � � � � � � � � � � � � � � � � � � � � � � 18
DEFROSTING � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 19
CONTROLLER � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 20
Operation and function � � � � � � � � � � � � � � � � � � � � � � � � � 20
FAULT FINDING � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 21
MAINTENANCE � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 22
GENERAL INFORMATION � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 23
Warranty, spare parts and service � � � � � � � � � � � � � � � � � � � � 23
DISPOSAL� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 24

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WARNING
As the appliance contains a flammable refrigerant, it is essential
to ensure that the refrigerant pipes are not damaged.
The quantity and type of the refrigerant used in your appliance is
indicated on the rating plate.
Standard EN378 specifies that the room in which you install your
appliance must have a volume of 1m³ per 8 g of hydrocarbon
refrigerant used in the appliances. This is to avoid the formation
of flammable gas/air mixtures in the room where the appliance is
located in the event of a leak in the refrigerant circuit.
WARNING:
Keep ventilation openings in the appliance’s cabinet or in the
built-in structure clear of obstruction.
WARNING:
Do not use other mechanical devices or other means to accel-
erate the defrosting process than those recommended by the
manufacturer.
WARNING:
Do not damage the refrigerant system.
WARNING:
Do not use electrical appliances inside the refrigerated storage
compartment, unless they are of a type recommended by the
manufacturer.
WARNING:
Do not expose the appliance to rain, and secure not splashing
water when cleaning the floor.
WARNING:
the appliance is not to be used by persons (including children)
with reduced physical, sensory or mental capabilities, or lack of

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experience and knowledge, unless they have been given supervi-
sion or instruction.
WARNING:
Children being supervised not to play with the appliance.
WARNING:
Do not store explosives, such as aerosol cans with flammable
propellants in the unit.
WARNING:
Danger risk of fire or explosion if flammable refrigerant are used.
To be repaired only by trained personnel.
WARNING:
When positioning the appliance, ensure the power cord is not
trapped or damaged.
WARNING:
Do not locate multiple portable socket-outlets or portable power
supplies at the rear of the appliance.
WARNING:
Sharp edges on cabinet, compressor compartment, evaporator,
ventilation cover and on internal equipment can occur. Please be
aware to avoid injury.
WARNING:
The condenser on the back of the appliance will in some cases
have a hot surface. Please be aware to avoid injury.

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WARNING:
The appliance must be connected to power minimum 12 hours
before using it for storage of medicine.
●Always keep the keys in a separate place and out of reach of children.
●Before servicing or cleaning the appliance, unplug the appliance from the mains or
disconnect the electrical power supply.
●If the supply cord is damaged, it must be replaced by the manufacturer, its service
agent, or similarly qualified persons in order to avoid a hazard.
●Relevant for Australia: Supply cord fitted with a plug complies with AS/NZS 3112.
●Frost formation on the interior evaporator wall and upper parts is a natural phenome-
non. Therefore, the appliance should be defrosted during normal cleaning or mainte-
nance.
●Please note that changes to the appliance construction will cancel all warranty and
product liability.
●This device is intended to be used exclusively for medical products.
●If medicine is spilled in the appliance or the defrost water canal is has to be cleaned
immediately to avoid the medicine to evaporate to the surroundings.
●If the instructions is lost please contact your supplier of the appliance to have a new
instruction for use.
●If service needed to this device, please be aware of only using service personnel with
education in handling medical devices.
Flammable Material Storage Freezer
Sparkfree interior to reduce the risk of internal explosion.
Interior temperature range: +1°C to 15°C
The interior comprise this safety marking:
II 3G nA IIB T6
NOTE:
●Combustible materials may be stored inside cabinet. but the cabinet is not approved for
potential explosive areas.
●Combustible materials shall be stored in approved containers.
●Danger of sparks due to electrostatic discharge. Do not use a dry cloth to clean plastic
parts. Clean plastic parts with a damp cloth only!

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This user manual is intended for the following product models:
We recommend that you read this user manual before using the unit for the first time. Vestfrost
Solutions does not guarantee safe operation if the unit is used for anything other than its intended
use. Contents of the user manual can be subject to change without notice.
This manual should be considered an integral part of the unit and should be stored close to the
unit and be easy to access.
For current versions of the manual, please visit https://www.vestfrostsolutions.com/.
Before operating your new appliance, please read the following instructions carefully:
1. Check to ensure the appliance has not been damaged during transport. Transport damage
should be reported to the transporter delivery.
2. The foil on the shelves must be removed before cleaning and using the unit.
3. Clean the inside of the cabinet using warm water with a mild detergent. Use a soft cloth and
rinse with clean water and dry thoroughly.
4. Allow the freezer to stay at an upright position for at least one hour before switched on.
5. Allow the freezer to operate at the desired temperature for a minimum of 12 hours before
loading.
A-weighted emission sound pressure level is below 70 dB(A)
Before use
PRODUCT DESCRIPTION
Ultra LowTemperature Freezer
VT78
VT208
VT308
VT408

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Electrical connection
Wiring and connections in power supply systems must been all applicable (local and national)
electrical codes. Consult these codes lengths and sizes prior to cabinet installation.
This device complies with relevant EU directives including Low Voltage Directive 2014/35/EU and
Electromagnetic Compatibility Directive 2014/30/EU
The socket should be freely accessible.
Connect the appliance only to 220/240V / 50Hz alternating current via a correctly installed earthed
socket.
The socket must be fused with a 10A or 13A fuse.
If the appliance is to be operated in a non-European country, check on the rating plate whether
the indicated voltage and current type correspond to the values of your mains supply.
Data regarding voltage and obsorbed power / current are given on the rating plate.
The power cord may be replaced by a technician only.
The rating plate provides various technical information as well as type and serial number.
Product number

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Intended use
Vestfrost biomedical freezers are designed to provide reliable temperature stability and precision
and ensure an ideal cold temperature storage for sensitive items is achieved.The products are
designed for the following operating ranges:
WARNING: This unit is not a “rapid-freeze” device. Freezing large quantities of liquid,
or high-water content items, will temporarily increase the chamber temperature and will cause
the compressors to operate for a prolonged time period. Avoid opening the door for extended
time periods since chamber temperature air will escape rapidly. Also, keep the inner doors closed
as much as possible. When room air, which is higher in humidity, replaces chamber air, frost may
develop in the chamber more rapidly.
Models
VT78
VT208
VT308
VT408
Temperature range -60°C to -86°C
Fabric Set Point -82°C
Ambient Temperature +16ºC to +32ºC
Relative humidity MAX 70 %
Room climate classes
Room climate class Max room temperature
°C
Relative humidity
%
3 25 60
4 30 55
5 40 40
7 35 75
The climate class is stated on the nameplate. This specifies the optimum room temperature.

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FREEZER COMPONENTS
Front & internal view
1. Lid
2. Gasket
3. Handle
4. Lock – Push and turn lock. ´´Insert the
key into the keyhole and push and turn
the key 180 degrees clockwise´´.
5. Inner lid
6. Display – With integrated keyboard
7. Wheels
8. Defrost water drain (Not all models)
9. Porthole – Hole for external sensor and
CO² backup.
9
1234
5
6
9
8
7

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Backview
1. Porthole – Hole for external sensor and
CO2 backup.
2. Rating plate.
3. Condenser
4. Ventilation grill
5. Power supply – IEC plug
6. Remote alarm connection
VT78
VT208, VT308, VT408
2
2
1
1
5
5
3
4
3
4
4
66
6

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Sensor placement
1. TR3 – Regulating probe.
VT78
1
1
VT208, VT308, VT408

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Location and ventilation
100 mm
800 mm
20
mm 100 mm
This unit must be installed according to the
below condition:
If the unit is installed in a location against the
below conditions, it’s specified performance
may not be achieved or malfunction and acci-
dence may occur.
1. A location not exposed to direct sunlight
2. A location where the unit is not exposed
to rain
3. In a dry, well ventilated room
According to the described in Intended
use
4. Away from sources of heat
5. In a location with minimal variations in
temperature
Secure ventilation, above, below and around
the appliance. See illustration.
IMPORTANT! There must be free access
to the ventilation grille.
INSTALLATION AND START-UP

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Before being able to install and use
the unit you must attach the 4 wheels
supplied in the box.
Follow the instructions carefully.
NOTE: Before you start:
Disconnect the unit from the main
grid.
Lock the unit to prevent the lid from
opening when the unit is placed on its
back
To avoid damage, place some soft
padding under the unit
Place the unit on its back.
To avoid damage place a soft bedding
under the unit (e.g. the packaging) and
then tip the unit.
Wheel mounting holes
EN
Mounting the wheels

Vestfrost Solutions 15
To attach the wheels use a 9 mm
spanner
Attention:
After setting the unit upright, you
must wait at least 3 hours before
connecting the unit to power for
the cooling circuit to work correctly�
EN

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Battery backup
The appliance is equipped with a battery back-
up system, which supplies the controller with
power at power failure. The backup system
duration is 48 hours.
Note!
When starting up the appliance for the first
time it is necessary to charge the battery for
10 days.
Note!
The battery backup system does not supply
the cooling system with power. Battery is
automatically turned on during first controller
startup.
Note!
The battery for backup should be changed
every third year to secure 48 hours of back
up. Please put this change in the maintenance
schedule for every third year.

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Porthole
C
O
2
The models has a predrilled hole at the
back side. Useful in case CO2 back up or
introduction of wire sensor may be required
e.g to monitor the temperature of your ULT-
freezer

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Fig. Internal Dixell controller with built-in alarm relay
Remote alarm function
NC
COM
NO
Your device is equipped with a remote alarm
connection to send alarm signals to a building
management system, a monitoring unit, visual
or acoustical warning device etc.
The alarm output is managed freely by the
built in controller of the unit.
Alarm criteria may be too low temperature,
too high temperature, power failure, open
door or similar.
The alarm output is an electrical floating
output (dry contact) which acts like a ON/OFF
switch.
A SPDT (single pole, dual throw) relay with
maximum switch rating of 250V 3A is main-
tained by the build-in DIXELL controller unit.
The relay terminals are explained this way:
COM: COMMON terminal
NO: NORMALLY OPEN terminal.
Connects to COM when the alarm is activated
NC: NORMALLY CLOSED terminal.
Disconnects from COM when the alarm is
activated
An alarm interface cable of maximum
30 meters can be attached without the use of
tools to the 3-pole alarm clamp connector.
Wire thickness must be within 0.5mm² to
2.5mm² and fitted with core crimp terminals.

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EN
The items stored in the freezer and the humidity
of the surrounding air gradually cause frost and
ice to form inside the freezer. A thin layer of
frost or ice does not affect freezer performance,
but the thicker the layer, the higher the energy
consumption. Small amounts of loose frost can
be removed using a plastic scraper.
Never use electrical apparatus or sharp
implements as these may damage the inside of
the appliance.
When the layer of frost and ice exceeds 4-5 mm
the freezer should be completely defrosted. It
is recommended that defrosting be performed
when there are no or only a few items stored in
the freezer.
Proceed as follows:
1. Disconnect the power supply.
2. Open the defrost water drain (not all models)
and leave the freezer lid open.
3. Place a tray under the defrost water drain.
4. Place a bowl of hot (but not boiling) water
in the freezer, close the lid and wait approx.
30 minutes before removing loose frost with a
plastic scraper.
5. To prevent water from damaging the floor
during defrosting, it is advisable to check
the defrost water tray from time to time
and to cover the floor around the defrost
water drain to protect against ice and
splashes.
7. When all the frost and ice have
melted, clean the inside of the appliance
using water with a mild, perfume-free
detergent. Dry the freezer with a soft
cloth.
8. If there are no defrost water drain, the ice is
removed when it is loose
9. Reconnect the power supply.
10.Return items to the freezer when the
required temperature has been reached.
Remember to reinsert the stopper in the
defrost water drain.
DEFROSTING

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CONTROLLER
Operation and function
A
The appliance is equipped with electronic
controls
For operation of the electronic control,
reference is made to the separate
instruction manual enclosed in the
appliance.
NOTE: The first time the power is con-
nected, press the “A”, thereby the alarm
will be connected
The appliance is equipped with a battery
back-up. The alarm will automatically go
off by power supply failure.
Therefore it is important to disconnect
the alarm, in case the appliance is not to
be used for a period.
Set the alarm off by pressing the “A”, and
display shows “OFF”, and then disconnect
the power supply.