User`s handbook for compression refrigerators

User`s handbook for compression refrigerators
 USER'S | IANDBOOK FOR
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PROGRAMME ON
USER'S HANDBOOK FOR COMPRESSION REFRIGERATORS
This book is to help the users of compression refrigerators to get the
best out of their equipment.
CONTENTS
Action on receipt
Installation
Parts list
Starting
Adjusting the temperature
Periodic attention
What
What
What
What
What
to
to
to
to
to
do
do
do
do
do
1f the
1f the
1f the
1f the
if the
refrigerator is not working properly
refrigerator will not start
refrigerator is not cold enough
refrigerator is too cold
refrigerator is very noisy
Checking the door sealing
Checking the thermostat
De frosting
Cleaning the refrigerator
Ad justing the door sealing
Adjusting dropped doors
Ad justing twisted doors
Replacing the door gasket
Replacing the thermostat
Replacing the plug
Ordering spare parts
Page
Ov ON
10
11
12
13
13
14
15
17
18
19
20
21
22
24
26
27
— — LT Ge Wa и
Action on receipt
1. Check that the voltage shown on the packing list (or on the packing case)
is correct for your power supply.
2. Check the packing case for damage. If you suspect any refrigerator
damage, notify the supplier before unpacking.
3. Unpack the refrigerator carefully. (It is easily damaged).
4. Check the refrigerator. If it is damaged, notify the supplier.
5. Check the data plate or the compressor label. (Make sure the voltage is
correct).
6. Look for the instructions for use. (They should be inside the packing
case or the refrigerator).
7. Read the instructions and follow them exactly.
8. If the instructions are missing, use this book instead.
Voltage is usually
stated on the data
plate or on the
compressor.
@ —
ión iii LLL
Br EEE re ии [ N
Installation
1. Place the refrigerator close to an electric socket and in the coolest part
of the building.
2. The room must be well ventilated and a good air circulation around the
refrigerator is necessary. In very hot climates a fan should be used to
blow air between the wall and the refrigerator.
3. Keep the refrigerator in the shade and away from heat of any kind.
4. Clearances to wall and roof must be at least as big as those shown in the
picture below
400mm (16 inches)
300mm (12 inches)
5. Check that the plug fits into the electrical socket. If it does not, find
and fit a plug that does fit. (See page 26).
- 4 -
To keep the refrigerator dry, place it on wood blocks 1 to 2 inches (25 to
50mm) thick.
Check that the door seals properly against the front of the refrigerator.
See page 14.
Make sure that the door opens and closes properly. If not, see pages 19
to 21.
—
чт
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—
—
—
—_—
Anticondensation pipe
J
The refrigerator must stand
Pal and level on these blocks
quee TIT
ED mh SED US mE TED SE E a SE E Ci РР iD Gi GEN SEE E ams UU UD
9. If a lock is to be fitted-to the door, holes have to be drilled. Make
sure that no pipes are hit by the drill. It is very common to have
anti-condensation pipes as shown in the picture above.
10. Find out where the electrical supply fuses are located. Make sure that
the fuse for the refrigerator socket is 5 amps.
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Parts list
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à
Evaporator
Freezer compartment
door
Capillary tube
Thermostat
Control knob
Handle
Door gasket
Shelf
Door shelf
Door plate
Data plate
Condenser
Compressor
Power supply cable
Plug
CE N a an — =
Starting
1. Plug in the power supply cable to the electric socket.
2. Turn the control knob to a medium position (normally 3 to 5 or "MED") and
leave the refrigerator running for 3 to 4 hours. If it does not start,
check that the plug is wired correctly. See page 26.
3. Measure the temperature inside the refrigerator. It must be between
+4°C and +8°C. If necessary adjust the temperature as follows:
Adjusting the temperature
Note: The power supply cable should always be plugged into the socket.
1. After checking the inside temperature the control knob can be turned
towards a warmer or colder position i f necessary.
2. The control knob is usually marked "1" to "7", "MIN", "MED" and "MAX" or
with an arrow indicating how to turn for colder temperature.
No. "1" or "MIN" gives the warmest and No. "7" or "МАХ" the coldest
temperature.
CN
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Lo >
4 4 or
(3
- 7 -
Check the temperature every morning and every evening.
To help keep the temperature cold enough inside the refrigerator, take the
following action:
- Carry out the daily, weekly and monthly tasks as shown on pages 8 and
9.
о Do not keep food or drink in the refrigerator.
- Only open the door of the refrigerator when you have to take out or
put in vaccines.
- Keep icepacks in the freezer compartment of the refrigerator. The
icepacks should always be frozen hard.
- Keep bottles of water in the refrigerator cabinet.
- Arrange the boxes or trays of vaccine so that there is room for the
cold air to move around inside the refrigerator. There should be at
least Scm (2 inches) between each box or tray of vaccine.
Periodic attention
Every day actions
PLA
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1. Check the temperature inside the refrigerator. It must be between +4°C
and +8°C.
If it is not, see page 6 (Adjusting the temperature).
Note: Always keep a thermometer inside the refrigerator.
If the temperature cannot be adjusted to between +4°C and +8°C the
cooling unit is not working properly. See pages 10 to 13 for the action
that you must take.
Every week actions
l. Check the ice formation on
the evaporator. If the ice
is thicker than 6 to 10mm (1/4 to
3/8 inch) defrost the evaporator.
See page 17.
Note: - If de-frosting is necessary every
week the door is probably not sealing
properly. See page 14 for the action
that you must take.
Every month actions
1. Check that the condenser and
compressor are clean. Remove
any dirt or dust with a soft
brush.
2. Check the outside of the refrigerator
for damaged paint work.
(a) Clean the damaged surface.
(b) Remove all rust.
(c) Repaint the damaged area.
Note: When necessary:
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- Clean the refrigerator in- and outside with a damp cloth.
Use mild detergent only.
- Clean door gasket and powder 1t with some talcum.
— 10 =
What to do if the refrigerator is not working properly
The refrigerator is not working properly if any of the following happens:
— The compressor will not start. For action see page ll.
- The refrigerator is not cold enough. For action see page 12.
- The refrigerator is too cold. For action see page 13.
— The refrigerator is very noisy. For action see page 13.
Follow these instructions when using the fault finding tables on pages 11 to 13.
1. Always start with the first fault shown.
2. Make quite sure that a fault does not exist before going on to the next
one.
3. If, after checking all the faults, the refrigerator is still not working
properly, start at the beginning and check everything again.
4. 1f, after checking all the faults twice, the refrigerator is not working
properly, take the following action:
- Transfer the vaccine into another refrigerator.
- Get a technician to examine the faulty refrigerator.
- 11 -
What to do if the refrigerator will not start
1. Is the supply cable | No
| Plug into the wall socket.
plugged ın?
Yes
|
2. Are main switch and
control knob turned
No
Switch on.
to "ON" position.
Page 6.
———————————]——
Yes
|
3. Does other electric
equipment work in the No
Check the electrical
fuse.
refrigerator wall
socket?
Yes
> |
~— 4. Is the plug correctly | No
wired. Page 26.
5. Does the thermostat
"click" when turned No
brest
| Rewire the plug.
Check the thermostat,
page 15.
to "ON" position?
—
Yes
|
6. Call the technician; there
is a major fault in this
refrigerator.
Refrigerator not cold enough
1. Control knob in cold
- 12 —
Ad just the control
position? Page 6. No knob to colder
position.
eee FREER
Yes
2. Evaporator free from | No | Pull out the plug and
thick frost? Page 6. defrost, page 17.
q
3. Normal load of water | No | Take some water out.
for ice freezing?
Yes
4. Door closing properly? Check door gasket
Page 14. No page 14 or adjust the
door, pages 19 to 21.
Yes
5. Good air circulation Improve installation.
inside and around the No Page 3.
refrigerator? Page 3.
= MA IT
Yes
| й Ш
6. Condenser free from | No | Clean the condenser,
dust , page 9. page 18.
7. Is the thermostat | No | Short circuit the
working? Page 15.
Yes
8. Notify a repair
technician.
thermostat , page 24.
a a a
po
a
- 13 -
Refrigerator too cold
1. Control knob in warm | No
position? Page 6.
2. The thermostat switches
off the compressor from
time to time? No
Turn the knob to warmer
position.
Vu
Yes
|
3. Replace the thermostat,
page 24.
Refrigerator too noisy
l. The refrigerator is
making a rattling noise? No
Make sure that the
capillary tube end is
fixed to the evaporator,
page 5. If it is, replace
the thermostat , page 24.
———a
Yes
|
2. Gently rock the refrigerator.
If it moves, re-level with
wooden blocks, page 5. If
still rattling, examine the
tubes at the rear, bend care
fully and separate them from
other parts.
_—J
If it is making a loud
hammering noise, switch
off and notify a technician.
— 14 -
Checking the door sealing
1. Place a thin paper strip
against the cabinet front,
see picture. a
~
2. Close the door. |
3. Pull the paper strip.
If it moves easily or
falls away by itself, |
adjust the door sealing.
Page 19.
Ny
Note: - Check all the way around the door. ‘
- Pay particular attention to the corners.
- 15 -
Checking the thermostat
1. Pull out the plug from the wall socket.
2. Remove the control knob from the thermostat spindle. It may have a small
screw that has to be removed.
3. Remove the thermostat cover. Look carefully for any screws and remove
them before forcing the cover off.
4. Disconnect the wires connected to the thermostat.
5. Short circuit the thermostat as shown below.
ends with tape or sticking plaster.
- 16 -
6. Push the plug into the wall socket.
7. If the compressor starts, unplug the supply cable and replace the
thermostat, page 24.
8. If the compressor does not start, take the action described on page 10,
paragraph 4.
Note: - Until the thermostat has been replaced the refrigerator can be used
if the temperature is checked carefully.
- If it gets too cold - pull out the plug.
- If it gets too warm - push in the plug.
— Keep some bottles of water inside the refrigerator. This will help
to keep the temperature correct.
Ln,
E
- 17 -
De frosting
It is quite nomal for ice and frost to form on the evaporator. A thin
layer of frost does not affect the cooling performance. A thick layer of
frost (6 to lOmm, 1/4 to 3/8 inch or more) must be removed by defrosting.
1. Move the vaccine into another refrigerator or store it in a cold box with
icepacks.
2. Pull out the plug from the wall socket.
3. Open the door of the refrigerator and freezer compartment.
4. As soon as it 1s possible to remove ice with your fingers, do so. Do not
use knives or other sharp instruments.
5. Empty the drip tray.
6. Wipe the freezer compartment dry.
7. Clean the refrigerator inside with soap and water. When it is clean, dry
it carefully.
8. Put the plug back into the socket.
9. Wait until the inside temperature has been reduced to +4°c.
10. Place the vaccine inside and close the door.
Note: - Defrosting must be carried out as quickly as possible in order not to
damage the vaccine.
— Use the time it will take to defrost to clean the refrigerator and
carry out simple repairs.
- 18 -
Cleaning the refrigerator
1. Always clean the refrigerator inside when defrosting.
Use warm water and soap or a weak detergent.
Never use scouring powder, steel wool or abrasive cleaners.
Do not forget to clean the door gasket and put some talcum on it.
Before starting the refrigerator again, wipe all parts completely dry.
Put the vaccine back in as soon as possible.
Clean the outside with a soft brush or a piece of cloth.
The condenser and compressor must be kept clean or the refrigerator will
not work properly.
Г ——
Remove all dirt and dust
from the condenser
from the compressor,
"= a a —
a
PR
- 19 -
Adjusting the door sealing
1. Loosen the hinge screws slightly and check 1f the door seals better after
MN the hinges are adjusted.
If the handle side of the door 1s leaking, move the hinges slightly
outwards.
If the hinge side is leaking, move the hinges slightly inwards.
2. The picture below shows the usual way to adjust a door hinge.
4” Ÿ_—
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3. If a gasket leaks at a corner, place a pad of paper or sticking plaster
between the gasket and the inner door.
4. Check the door sealing —- see page 14.
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y
- 20 -
Adjusting dropped doors
Note: - This is the usual way to adjust a dropped door. If a more difficult
method is needed, notify a technician.
1. Loosen the upper hinge screws.
2. Make sure the edge of the door is in line with the side of the
refrigerator.
3. Hold the door in position and tighten the screws.
7
==
Y
VO
—
Note: - If the lower hinge is worn the door can be adjusted upwards.
- Put some washers on the hinge as shown in the picture.
4. Check the door sealing - see page 14.
o
=
= 21 -
Adjusting twisted doors
1. Open the door.
№ 2. Loosen the screws behind the door gasket slightly.
(If there are no screws, try to twist the door as shown below).
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3. Carefully twist the door
back to correct position.
4. Tighten the screws while
keeping the door in position.
5. Close the door and check the
door sealing - page 14.
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6. Carry out this work very carefully. The door can be damaged and then will
not close at all. If you are not sure what to do, notify a technician.
- 27 -
Replacing the door gasket
1. Check that the size of the replacement gasket is right.
di
2. Check whether the gasket is fastened by screws or snapped into a groove. u
This gasket fits into a groove.
To replace it, pull out the old >
gasket carefully, clean the groove
and press in the replacement gasket.
à
a
This gasket is fastened by screws.
Th
3. To replace a gasket fastened by screws - remove all the screws in the =i
upper half of the door. UN
J
- 23 -
4. Carefully twist the gasket from the plastic inner door and let it hang
d own.
5. Fit the new gasket (start in a corner) on the upper half of the door and
put the screws in but do not tighten them completely.
Old
New
|
A
El
A
N
›
|
6. Remove the screws in the lower half of the door and remove the old gasket.
7. Fit the new gasket and put the screws in but do not tighten them
completely.
8. Close the door, make sure it 1s not twisted.
9. Open the door and tighten the screws.
10. Check the door sealing - page 14.
Note: -
Some gaskets are magnetic on 3 sides only. The side without magnet
should be fitted on the hinge side of the door.
Some gaskets are moulded to the door. These cannot be replaced.
a technician to fit a new door if the gasket is leaking badly.
Get
- 24 -
Replacing the thermostat
1. Make sure that the replacement thermostat is suitable for the refrigerator.
2. Pull out the plug from the wall socket.
3. Note exactly how the thermostat tube end is fastened to the evaporator.
4. Remove the thermostat tube from the evaporator.
5. Carefully remove the control knob from the thermostat.
6. Remove the thermostat cover.
7. Remove the screws or nut, holding the thermostat to its bracket. (The
usual arrangement is shown in the pictures below).
Ро
AB ns
Af
E
\
Nut Screws
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10.
11.
12.
- 25 -
Carefully pull the thermostat out of the refrigerator together with its
tube.
As soon as there is enough space disconnect the wires joined to the
thermostat.
Remove the faulty thermostat and clean the surfaces where the replacement
1s to be fitted.
Fit the replacement thermostat in the reverse order to that described
above.
Make quite sure that:
(a) The wires are tightly connected.
(b) The thermostat tube is correctly positioned and tightened to the
surface of the evaporator.
(c) The control knob is adjusted to give the right temperature (see
page 6).
- 26 -
Replacing the plug
Several different types of plug are used. The usual ones are shown below.
Note: - All connections must be clean and tight.
- Green/yellow wires must not be fitted to any connection except an
"earth".
The wire must be bare
inside the joint.
The insulation must reach
the joint.
Green/yellow wire must be
fitted to "earth".
The other two wires can be p=
fitted to any pin. =
European type English type
Green/yellow to this “———— Green/yellow to this
connector ("earth") pin ("earth")
American 2 pin type without earth Australian type
connection ("earth")
Green/yellow must not he connected
Green/yellow to this
pin ("earth")
- 27 -
Ordering spare parts
When ordering spare parts, always state:
Manufacturer and model or type (shown on the data plate)
Serial No. (shown on the data plate)
—- Voltage and wattage
- Spare parts description (use the words given in this book).
Data plate
The location of a data plate
varies from model to model.
Usually it can be found on
the rear, on the lower door
or on the walls inside the
cabinet.
An example of how to order a door gasket is shown below.
Manufacturer: Electrolux
Model: TR 1120
Serial No.: 0123456
Voltage: 220
Wattage: 160
Part: door gasket 52cm wide, 75cm long; fitted with 14 screws, 3 on each
side, 4 at the top and 4 at the bottom.
MADE IN SWEDEN o{, Electrolux
MOD. PROD.NO — SER.NO
9242010 | 012 3456
Volt Am Watt
MBE 220 | 17 | 160
REFRIGERANT - 170
KYLMEDIUM
3 o
Typical data plate:
Always keep in stock: spare fuses or fuse wire.
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