Elcold PRO 60, PRO 21, PRO 41, PRO 11, PRO 31 User guide

Elcold Frysere Hobro ApS
Løgstørvej 81 Hørby 9500 Hobro Denmark
Phone [phone] Fax [phone]
Email [e-mail] www.elcold.com

i.c. graphics cph

User Instructions

Pro* Frost

Low Temperature Freezers Model PRO/XLT

SAFETY INFORMATIONS

The PRO/XLT freezers contains environmentally friendly but flammable refigerants. It means
danger of explosion if for any reason the refigerants are allowed to escape from the system.
The refigeration system must never be accessed by unauthorized personal.
When transporting and installing the unit, ensure that no part of the tubing system is damaged.
If the tubing is damaged and leak occurs, avoid any ignition sources and naked flames near
the unit, and ventilate the room immediately.

In order to avoid formation of flammable gas/air mixtures an case of a leak from the refigera
tion system, the room where the unit is placed must have a volume of minimum 40 m3 cor

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responding to a surface area of approx. 4 m2 in a room with normal ceiling height.

WARNING!!!

The ventilation openings must never be covered or blocked.

Never use a stream or water cleaning device during cleaning or defrosting in order to avoid
short circuits in the electrical system.

Do not place any electrical devices in the freezer.

Products containing flammable gasses and explosives must not be stored in the freezer.

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User Instructions Low Temperature Freezers Model PRO/XLT

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USER INSTRUCTIONS

Congratulations on your new low tempera­ture freezer. We trust that it will serve you
for many years to come. In order to gain
optimum benefit from your freezer, please
read the following instructions thoroughly
and act accordingly. The low-temperature
freezers are used for freezing and long-term
storing of food products, medical prepara­tions ( vaccines, blood plasm, ect.) and
other biological products.

1. Environmental protection and disposal.

The packaging is designed to protect the
appliance and its components during
transportation, and it is made of recyclable
materials.

• Please return the packaging to an
official collection point for recycling.

• Old appliances contain reusable
materials and should not be disposed
of together with household refuse.

• Remove the spring-action hinges from
the appliance, in order to prevent
children from being entrapped in the
appliance.

• Ensure that no part of the refrigeration
tubing is damaged as the refrigerant
in the appliance risks escaping to the
environment.

• Information about refrigerant type
and amount will be found on the type
plate on the rear of the appliance
(Fig. 1).

2. Safety instructions.

• In order to prevent injuries and or
damage to the appliance, it should
be unpacked and set up by min. two
people.

• If upon unpacking the appliance is
found damaged, do not connect to
the mains, but contact the supplier.

•

Interference with or repair to the
appliance should only be carried out
by authorized personnel, in order to
avoid any injuries. (contact the sup­ plier for further information).

• Never put naked flames or other igni­ tion sources inside the appliance.

• Never touch the freezers interior or

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products in the freezer when the
freezer is operating. Use gloves or alike
in order to avoid injuries (frost-bite).

• Keep the key to the appliance away
from the appliance and out of the
reach of children.

3. IMPORTANT NOTE !!!

• The type of refrigerant in the –60°C
freezers, is a mixture of different
flammable hydrocarbons.
These freezers are designed and
tested according to the EN 378 stan­ dard, under clause A3 room and L3
refrigerants, this means that the
volume of the room where the freezers
is placed must have a volume of mini­ mum 40m
4m
height.

4. Connection to the mains.

• For safety reasons the appliance must
be earthed. If you are in any doubt,
please contact an authorized electri
cian.

• The appliance should be left for 5
hours before it is connected to the
mains. If the appliance is connected
before that, there is a risk of damaging
the compressor.

• If for any reason the appliance is
disconnected from the mains, please
wait 10 minutes before re-connecting.
The electronic starting device needs
this time to cool down, before a safe
re-start can be made.

5. Before use.

• Before use, the interior of the appli­ ance should be cleaned with a mild
soap solution, and wiped off with a dry
clean cloth. Never use any kind of
solvent or other chemicals.

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corresponding to approx.

2

in a room with a normal floor

User Instructions Low Temperature Freezers Model PRO/XLT

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6. Setting up the freezer.

The freezer should not be placed where it
might be splashed with water, in extreme
high humidity or in direct sunlight. Any of
these factors may lead to a reduction in
performance and shorten the life span of
the components. The freezer should be
placed on a horizontal level, and should
not be placed close to a heating appliance
or heating tubes. Allow a minimum of 50mm
(2”) clearance on the side and the back.
The side with the ventilation grill should have
a clearance of at least 100 mm (4”) in order
to allow the heat from the compressor
motor to dissipate. Underneath the appli
ance there should be a gap of 15 mm ap

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­prox. (1⁄2”). On a soft surface, e.g. carpet,
it may be necessary to ensure the correct
distance by means of spacers.

7. Electrical supply.

The electrical supply should always be in
accordance with the rating plate on the
back of the freezer.
The supply must always be in accordance
with the law and regulations regarding
electrical safety, if any doubts contact your
supplier.

there is an electricity supply to the plug or if
the fuse is blown. If not please go to trouble
shooting page 6. 18.

9.Operating the freezer

The empty freezer should be switched on
for at least 5-6 hours prior to loading of the
freezer. The freezer should not be loaded
above the inside walls which is also the load
line limit.

Please note: After the lid has been opened,
there will be a vacuum created inside the
freezer due to the low temperatures. Wait a
few minutes before trying to reopen the lid
otherwise the handle could be damaged.

10.Defrosting.

In order for the freezer to work to its maxi
mum efficiency the cabinet should be de

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­frosted when a approx. 2mm thick ice layer
has formed inside the cabinet.
The ice layer is easily removed with a plastic
or wooden scraper.

Never use a sharp metal
object which might will cause damage to
the inner liner.

The defrosting frequency is determined
mainly by two factors the usage pattern
(number of lid openings) and the relative
humidity. Excess water can be drained out
by using the drain water outlet on the front
of the freezer.

Fig. 1

8. Starting Up.

In case the compressor does not start when
the freezer has been plugged in, the electri
cal supply may not be in order. Check if

User Instructions Low Temperature Freezers Model PRO/XLT

11.Cleaning.

Cleaning should be done when needed.
When used in a dirty environment it might
be necessary to remove the compressor
compartment grill, and clean the compres
sor compartment eventually with a vacuum
cleaner.
If the cleaning process is neglected there

­is a risk that the performance of the freezer

will be effected, and even damage to the

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compressor could occur due to overheat­ing.

12. Storage.

If the freezer is stored for a period of time,
the lid should be kept open for free circula

­tion of air inside the cabinet in order to
avoid corrosion of the inner liner.

13. Temperature control PRO/XLT- freezers.

The temperature inside the freezer is con

­trolled by the electronic controller in the
front grill. The controller has a digital readout
of the temperature inside the cabinet. and
the option of changing the temperature
inside the cabinet.

14. External voltage and temperature alarm.

Optionally the freezer can be equipped with
a battery operated alarm box with connec­tions for external alarm for voltage failure
and temperature alarm. The battery should
be exchanged every two years.
Please note! When commissioning the
freezer, the battery must be turned into its
correct position.

15.Dixell controller.

16. Functions.

How to see the set point:

1.Press and immediately release the SET key,
the display will now show the set point value.

2.Press and immediately release the SET key
or wait for 5 seconds to display the probe
value again.

How to lock and unlock the keyboard

1.Press the up and down keys simultaneously
for more than 3.seconds.

How to change the set point

1.Press the SET key for more than 3.seconds
to change the set point value.

2.The set point value will be displayed and
the LED starts flashing.

3.To change the set point value, push the up
or down arrow.

4. To memorise the new setting press the SET
key again or wait 15 seconds for the control­ler to return to normal display of the probe
temperature.

17. Setting the controllers offset value

The LAB/ULT freezer is designed for long time
and safe storage of sensitive products.
In some situations the PRO/XLT freezer is also
used for other applications like in laborato­ries for different low temperature test.
Depending on the actual situation it might
be necessary to change the controllers off

­set value in order to get a correspondence
between the reading on the display and the
actual temperature inside the cabinet.
The factory setting is an offset of 2 dgr.C.
The offset can be adjusted in the following
way.

Unlock the keyboard.

Enter the programming mode by pressing
the SET and arrow down keys for 3 seconds.

Select the parameter “Opb” by pressing
arrow up or down key.

Press the SET key to display its value.

Use arrow up or down to change its value.
The offset can be adjusted to +/- 12 dgr .C

Press SET to store the new value.

Press SET + arrow up or wait 15 seconds
without pressing any key. The new value will
now be stored.

For more detailed information about
programming the Dixell controllers please
consult the attached manuals.

User Instructions Low Temperature Freezers Model PRO/XLT

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