User Instructions Low Temperature Freezers Model GLE
User Instructions
mODEL gle
Low Temperature Freezers
Model GLE
Livøvej 22 - 8800 Viborg - Tlf. 86 61 34 11 - www.frigor.dk
User Instructions Low Temperature Freezers Model GLE
GB
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.
• Never touch the freezers interior or
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. 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.
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 supplier for further information).
• Never put naked flames or other ignition sources inside the appliance.
4. Before use.
• Before use, the interior of the appliance 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.
5. 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 appliance there should be a gap of 15 mm
approx. (1⁄2”). On a soft surface, e.g. carpet,
it may be necessary to ensure the correct
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User Instructions Low Temperature Freezers Model UNI/LT
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User Instructions Low Temperature Freezers Model GLE
distance by means of spacers.
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.
6. 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.
10.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 compressor 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
compressor could occur due to overheating.
7. Starting Up.
In case the compressor does not start when
the freezer has been plugged in, the electrical supply may not be in order. Check if
there is an electricity supply to the plug or if
the fuse is blown. If not please go to trouble
shooting page 6. 18.
8.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.
Fig. 1 Wait a
few minutes before trying to reopen the lid
otherwise the handle could be damaged.
11. Storage.
9.Defrosting.
12. Temperature control GLE- freezers.
If the freezer is stored for a period of time,
the lid should be kept open for free circulation of air inside the cabinet in order to
avoid corrosion of the inner liner.
In order for the freezer to work to its maximum efficiency the cabinet should be de-
The temperature inside the freezer is controlled by the electronic controller in the
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User Instructions Low Temperature Freezers Model UNI/LT
User Instructions Low Temperature Freezers Model GLE
front grill. The controller has a digital readout
of the temperature inside the cabinet. and
the option of changing the temperature
inside the cabinet.
13. 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. More details on page 17.
14.EVCO controller.
and safe storage of sensitive products.
In some situations the GLE freezer is also
used for other applications like in laboratories for different low temperature tests.
Depending on the actual situation it might
be necessary to change the controllers offset 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 up and down arrow keys for 4 seconds.
Select the parameter “PA” pressing the SET
key to display its value.
Use arrow up or down to change its value to
-19 and press SET button again.
Once display shows again PA, keep pressed
up and arrow down keys for 4 seconds.
15. Functions.
How to see the set point:
1.Press and immediately release the SET key,
the display will now show the set point value.
Now you are looking parameter list, select
CA1 (offset)
The offset can be adjusted to +/- 25 dgr .C
Press SET to store the new value.
2.Press and immediately release the SET key
or wait for 60 seconds to display the probe
value again.
Press up + down arrow for 4 seconds or wait
60 seconds without pressing any key. The
new value will now be stored.
How to lock and unlock the keyboard
1.Press the set and down keys simultaneously
for more than 2 seconds.
17. Trouble shooting.
How to change the set point
1.Press the SET key to change the set point
value.
2.The set point value will be displayed and
the OUT1 icon 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 60 seconds for the controller to return to normal display of the probe
temperature.
16. Setting the controllers offset value
If the appliance is not operating. Then
please check:
Is the electrical plug connected to the
mains (wall socket)? Has the fuse blown?
If the temperature inside the appliance is
too high. Then please check:
Is the EVCO controller set to the correct
temperature?
Has an excess amount of ice formed inside
the appliance?
If the appliance is operating continuously.
Then please check:
Is the ambient temperature very high?
Has the appliance recently been loaded
with a large amount of warm products?
The GLE freezer is designed for long time
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User Instructions Low Temperature Freezers Model GLE
If you have checked the above points
and the appliance is still not working as
expected, please contact your local dealer
for further advice.
For more detailed information about
programming the EVCO controllers please
consult the attached manuals.
FRIGOR Standard Setting of EVCO Controller
Description
SET POINTS
Differential (Hysteresis)
Offset
Low Temp. Alarm
High Temp. Alarm
Label
Setting
SP
r0
CA1
A1
A5
-45°C
3
0
10°C
10°C
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User Instructions Low Temperature Freezers Model UNI/LT
User Instructions Low Temperature Freezers Model GLE
EVK 012
Thermoregulator for general purposes
18 Wiring diagram
With reference to the wiring diagrams:
•the polarity of relay K1 depends on parameter
u9; according to the default setting, the relay
is activated when the regulator is turned off
and deactivated when the regulator is turned
on
•the polarity of relay K2 depends on parameter
u3; according to the default setting, the relay
is activated during the normal operation and
deactivated during an alarm
•the serial port (by request) is the port for the
communication with the supervision system
(through a serial interface, via TTL, with MODBUS communication protocol) or with the
programming key; the port must not be used
at the same time for the same purposes.
Additional information for electrical connection:
•do not operate on the terminal blocks with
electrical or pneumatic screwers
•if the instrument has been moved from a cold
location to a warm one, the humidity could
condense on the inside; wait about an hour
before supplying it
•test the working power supply voltage,
working electrical frequency and working
electrical power of the instrument; they must
correspond with the local power supply
•disconnect the local power supply before
servicing the instrument
•do not use the instrument as safety device
•for repairs and information on the instrument
please contact Evco sales network.
19 USER INTERFACE
19.1 Turning on/off the instrument
To turn on the instrument you have to supply
it; to turn it off it is enough to cut off the power
supply.
19.2 Locking/unlocking the keyboard
To lock the keyboard:
•make sure no procedure is running
and
2 s: the display will show
•
press
“Loc” 1 s.
If the keyboard is locked, you will not be allowed to:
•modify the working setpoint with the procedure related in paragraph 4.1 (you also can
modify the working setpoint through parameter SP).
These operations provoke the visualization of
the label “Loc” 1 s.
To unlock the keyboard:
and
2 s: the display will show
•
press
“UnL” 1 s.
19.3 Silencing the buzzer
•make sure no procedure is running
•press a button (the first pressure of the button
does not provoke its usual effect).
20 SETTINGS
20.1 Setting the working setpoint
•make sure the keyboard is not locked and no
procedure is running
LED out 1 will flash
•
press
or
in 15 s; also look at param•
press
eters r1, r2 and r3
or do not operate 15 s.
•
press
You also can modify the working setpoint
through parameter SP.
20.2 Setting configuration parameters
To gain access the procedure:
•make sure no procedure is running
and
4 s: the display will show
•
press
“PA”
•
press
•
press
to set “-19”
•
press
and
4 s: the display will show
•
press
“SP”.
To select a parameter:
or
•
press
To modify a parameter:
•
press
•
press
or
or do not operate 15 s.
•
press
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User Instructions Low Temperature Freezers Model GLE
To quit the procedure:
and
4 s or do not operate
•
press
60 s.
Switch off/on the power supply of the instrument after the modification of the parameters.
21 SIGNALS
LED MEANING
out 1 LED load
if it is lit, the load will be turned on;
also look at parameter u9
if it flashes:
•the modification of the working
setpoint will be running
•a load protection will be running
(parameters C1 and C2)
LED defrost
if it is lit, the defrost will be running
LED alarm
if it is lit, an alarm will be running
°C
LED Celsius degree
if it is lit, the unit of measure of the
temperatures will be Celsius degree
(parameter P2)
°F
LED Fahrenheit degree
if it is lit, the unit of measure of the
temperatures will be Fahrenheit degree (parameter P2)
CODE MEANING
Loc the keyboard and/or the working
setpoint are locked (parameter r3);
also look at paragraph 2.5
22 ALARMS
CODE MEANING
ALARM First temperature alarm
LOW Remedies:
AL1 •check the room temperature
•look at parameters A1 and A3
Effects:
•the alarm output will be deactivated; also look at parameter u3
ALARM Second temperature alarm
HIGH Remedies:
AL2 •check the room temperature
•look at parameters A5 and A7
Effects:
•the alarm output will be deactivated; also look at parameter u3
When the cause that has provoked
the alarm disappears, the instrument
restores the normal operation.
23 INTERNAL DIAGNOSTICS
CODE MEANING
Pr1
Room probe error
Remedies:
•check the integrity of the probe
•check the connection instrumentprobe
•check the room temperature
Effects:
•the load activity will depend on
parameters C4 and C5
•the alarm output will be deactivated; also look at parameter u3
When the cause that has provoked the alarm
disappears, the instrument restores the normal
operation.
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User Instructions Low Temperature Freezers Model UNI/LT
User Instructions Low Temperature Freezers Model GLE
Wiring diagrams
GLE 10/20/30
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User Instructions Low Temperature Freezers Model GLE
Wiring diagrams
GLE 40/50
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User Instructions Low Temperature Freezers Model UNI/LT