Dometic Frigo DC User manual

REFRIGERATION SYSTEMS
FRIGO DC
Frigo DC
Electrical transport refrigeration
system
Operating manual. . . . . . . . . . . . . . . . . . . 3
Elektrische Transportkühlanlage
Bedienungsanleitung . . . . . . . . . . . . . . . 24
Système électrique de
refroidissement pour le transport
Notice d’utilisation . . . . . . . . . . . . . . . . . 46
Sistema eléctrico de refrigeración
para transporte
Instrucciones de uso . . . . . . . . . . . . . . . . 70
Sistema de refrigeração de
transporte elétrico
Manual de instruções . . . . . . . . . . . . . . . 92
Sistema elettrico di refrigerazione
mobile
Istruzioni per l’uso. . . . . . . . . . . . . . . . . .114
Elektrisch mobiel koelsysteem
Gebruiksaanwijzing . . . . . . . . . . . . . . . 136
Elektrisk transportkølesystem
Betjeningsvejledning . . . . . . . . . . . . . . 157
Elektriskt transportkylsystem
Bruksanvisning . . . . . . . . . . . . . . . . . . . 177
Elektrisk transportkjøleanlegg
Bruksanvisning . . . . . . . . . . . . . . . . . . . . 197
Sähkötoiminen kuljetusauton
kylmälaitteisto
Käyttöohje. . . . . . . . . . . . . . . . . . . . . . . . 217
Электрическая транспортная
холодильная система
Инструкция по эксплуатации . . . . . . . 238
Elektryczny transportowy system
chłodniczy
Instrukcja obsługi . . . . . . . . . . . . . . . . . . 261
Elektrický system prepravného
chladenia
Návod na obsluhu . . . . . . . . . . . . . . . . 284
Elektrický dopravní chladicí
systém
Návod k obsluze. . . . . . . . . . . . . . . . . . 305
Elektromos raktérhűtés
Használati utasítás . . . . . . . . . . . . . . . . 325
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Frigo DC Explanation of symbols
Please read this instruction manual carefully before starting the appli-
ance and keep it in a safe place for future reference. If you pass on the
vehicle with the refrigeration system to another person, hand over this
instruction manual along with it.
The manufacturer cannot be held liable for damage resulting from improper
use or incorrect operation.
Table of contents
1 Explanation of symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Function description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
5 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
6 Notes on use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
7 Cleaning and care. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
8 Regular servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
9 Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
10 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
11 Service hotline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
12 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
13 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
1 Explanation of symbols
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CAUTION!
Safety instruction: Failure to observe this instruction can lead to injury.
NOTICE!
Failure to observe this instruction can cause material damage and impair the
function of the product.
NOTE
Supplementary information for operating the product.
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Safety instructions Frigo DC
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2 Safety instructions
The manufacturer accepts no liability for damage in the following cases:
Damage to the product resulting from mechanical influences
Alterations to the product without express permission from the manufacturer
Use for purposes other than those described in the operating manual
2.1 General safety
Please remember that the payload of the vehicle changes due to the interior
lining of the thermally-insulated cargo space. If the maximum payload and
the seat loads are in use, the maximum permissible front axle load must also
be observed.
If you identify any damage to or impairments of its function, the refrigeration
system must not be used.
Inspection and maintenance instructions must be observed. Failure to
observe these instructions invalidates the warranty.
Only use the electrical refrigeration system for the purpose specified by the
manufacturer and do not make any alterations or structural changes to the
device.
Please note, driving over curbs, potholes or similar, at an inappropriate
speed can possibly damage the cooling unit of the electrical cooling unit,
installed holders and other attachments. Any liability based on the negli-
gence of the vehicle user is excluded.
Make sure that the air vents (grills) underneath the vehicle are not covered.
The openings and fans on the evaporator in the cargo space must not be cov-
ered during loading.
Ensure that the thermal insulation in the cargo space of the vehicle is in a flaw-
less condition. If this is not the case, contact the person responsible for fitting
the insulation in the cargo space.
The electrical cooling unit is installed in the recess for the spare tire under the
vehicle. As a result, it is no longer possible to carry a spare tire. Therefore,
make sure your vehicle is equipped with an additionally available breakdown
kit.
The electrical refrigeration system is not suitable for cooling down loaded
goods to their required storage temperature.
To prevent temperature changes that are too great, it is recommended to
cool down the temperature of the cargo space to the required storage tem-
perature before loading the goods.
Do not operate the electrical refrigeration system if the cargo space doors are
open.
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Frigo DC Intended use
Do not store any potentially explosive materials, such as spray cans with flam-
mable propellants, in the refrigerator compartment.
3 Intended use
The transport refrigeration system is intended for maintaining the storage tem-
perature of chilled goods stored in a transport vehicle. It maintains the cold chain
from the place of origin (manufacturer) to the customer. The transport refrigera-
tion system can be used in a temperature range between +20 °C and 0 °C in the
cargo space.
The transport refrigeration system is only suitable for use with the R-134a
refrigerant.
Any use other than or beyond that purpose constitutes use other than intended.
The electrical refrigeration system cannot be operated when outside tempera-
tures are below 0 °C.
The refrigeration system can only be operated when the vehicle engine is run-
ning, to avoid running down the vehicle’s battery.
Undervoltage at the power supply causes the refrigeration system to shut down.
When the vehicle engine is switched off, the temperature in the cargo space can
only be maintained to a limited extent.
With the supplementary equipment “Stationary Cooling”, the transport refriger-
ation system can be connected to a 230 V power supply network with integrated
safety switch (FI 30 mA tripping current) and can thereby be used when parked.
The food to be transported may only be transported in its original packaging or
in suitable containers.
4 Function description
The transport refrigeration system discharges the heat in the cargo space to the
exterior, as the refrigerant circulating in a closed system undergoes thermody-
namic changes.
The evaporator is equipped with an automatic defrosting function.
The refrigeration system is powered by the vehicle’s on-board power supply.
INOTE
The electrical refrigeration system works independently and has no influence
on the vehicle’s air conditioning system.
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Operation Frigo DC
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5Operation
5.1 Control unit
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All of the refrigeration system’s functions are controlled via the control unit. All
relevant values and settings are shown on the integrated display.
Fig. 1: Overview of control unit, buttons
The following functions are controlled with the buttons:
NOTE
The control unit stays in stand-by mode for up to 12 hours after the vehicle igni-
tion is switched off and the ignition key is removed.
After this time, the control unit must be switched on again after starting the
engine. Within 12 hours, the refrigeration system switches back on automati-
cally if it was on when the vehicle was switched off.
No. in
fig. 1Button Function description
1 Switches the refrigeration system on and off
2Display:
Display of the current temperature in the cargo space
Displays additional information
Displays current error messages
3Changes the target temperature
Increases values
Acknowledges warning signals
4Changes the target temperature
Reduces values
5Programming button
Starts manual defrosting
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Frigo DC Operation
Fig. 2: Overview of control unit, display
The display indicates the system status:
5.2 Switching on the refrigeration system
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➤Switch on the ignition.
➤Start the motor.
➤Wait until your vehicle’s loading monitor lamp has gone out.
No. in
fig. 2Symbol Description Function description
1Temperature
Current temperature in the cargo space
2Compressor
Lights up if the compressor is on
Flashes if the activation of the com-
pressor is delayed
3Defrosting
Lights up in defrosting mode
Flashes during the drip period
4Evaporatorfan
Lights up if the fan is on
Flashes if the activation of the fan is
delayed
5 Alarm Lights up if there is an error message
(chapter “Faults” on page 18)
NOTICE!
Only operate the electrical refrigeration system with a running engine or
plugged in power cable (supplementary equipment “Stationary Cooling”) to
prevent the vehicle’s battery from running down!
NOTE
If the ambient temperature is lower than the set value, the set temperature will
not be achieved as the refrigeration system does not have a heating function.
Below 0 °C the refrigeration systemrefrigeration system switches off due to the
low internal pressure, to prevent the compressor from being damaged.
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Operation Frigo DC
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➤Press the button for a few seconds until the display is active.
✓The control unit performs a control test.
Fig. 3: Switching on the refrigeration system
✓Then the display shows the current cargo space temperature (1).
✓If required, the refrigeration system switches on and the symbols (2)
and (3) light up.
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5.3 Switching off the refrigeration system
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Switching off the refrigeration system
➤Switch the ignition off.
✓The refrigeration system automatically turns off.
NOTE
The symbols for the compressor and evaporator fan flash, if the
activation of the functions is delayed.
With a cargo space temperature above +15 °C, initially only lights up.
After a delay for functional reasons, the evaporator fan is switched on and
lights up.
If the outside temperature is high, the fan may initially alternate between
switching on and off until the cargo space has cooled down sufficiently.
NOTICE!
Never switch the refrigeration system off during a defrosting process as other-
wise any possible ice on the evaporator surface may reduce the air output and
thus the cooling capacity is no longer guaranteed.
NOTE
Switching the refrigeration system off does not influence the last entered target
value. This is automatically saved every time it is changed.
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Frigo DC Operation
✓The refrigeration system automatically turns on again when the ignition is acti-
vated.
Shutting down the refrigeration system on the control unit
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The refrigeration system should only be shut down if it is not to be used for a
longer period.
➤Press and hold the button.
✓The refrigeration system shuts down.
✓The refrigeration system does not automatically turn on again when the igni-
tion is activated.
5.4 Reading the target temperature for the cargo space
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➤Press the or buttons.
✓The set target temperature appears on the display.
➤Press .
✓The current cargo space temperature is displayed again.
5.5 Setting the target temperature for the cargo space
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The target temperature can be set between 0 °C and +20 °C.
➤Press the or buttons to set the target temperature.
✓The target temperature appears on the display and the decimal point flashes.
➤Use the or buttons to change the value for the target temperature.
✓After entering the desired cargo space temperature, the temperature unit °C
or °F is briefly displayed.
➤Press the button to return back to the current cargo space temperature.
NOTICE!
The specified maintenance intervals must be adhered to, to ensure that the sys-
tem functions remain in perfect condition.
NOTE
The target temperature is the desired temperature for the cargo space.
NOTE
The temperature for the cargo space (target value) must be set to correspond
to the storage temperature for the food.
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Operation Frigo DC
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✓The target temperature is saved and applied as the desired cargo space tem-
perature.
5.6 Defrosting the refrigeration system
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When the temperature in the cargo space drops, condensation forms. This con-
densation freezes on the surface of the evaporator. To obtain full cooling capac-
ity, this ice needs to be defrosted. If the cooling capacity drops, this is a certain
sign that defrosting is necessary. A possible sign of this is the rise of the cargo
space temperature on the display, for example.
The electrical refrigeration system is equipped with a hot-gas defrosting func-
tion. The evaporator is defrosted with the assistance of the heated refrigerant
and ensures that the evaporator is quickly and efficiently freed of ice.
Automatic defrosting
An electronic controller starts this defrosting process automatically after two
complete operating hours.
Fig. 4: Defrosting process
NOTICE!
The defrosting process should be manually performed regularly:
– When the refrigeration system switches off frequently before reaching
the scheduled automatic defrosting interval (e.g. by frequent loading
and unloading).
– When transporting moist chilled goods.
Otherwise, the evaporator surface may freeze and the cooling capacity of
the refrigeration system will be severely limited.
Never switch off the refrigeration system when defrosting is being per-
formed, either automatically or manually.
NOTE
Possible water losses under the vehicle can be traced back to normal conden-
sation discharge; this condensation particularly occurs at high outside temper-
atures and high humidity through the dehumidification effect of the
refrigeration system.
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Frigo DC Operation
✓During the defrosting phase, the last measured cargo space temperature is
shown on the display and not changed.
✓The symbol lights up.
✓The symbol flashes during the drip time.
After the defrosting process, the refrigeration system switches back to cooling
mode automatically.
Manual defrosting
The manual defrosting process can be started via the control unit as follows:
➤Press and hold the button for at least 2 seconds.
✓The defrosting process starts (chapter “Automatic defrosting” on page 10).
5.7 Cargo space door status
(supplementary equipment)
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Fig. 5: Cargo space door open
If the cargo space door is open while the refrigeration system is still in operation,
the message “cargo space door open” is displayed.
✓appears on the display.
✓The refrigeration system is automatically switched off for the length of this
message.
✓An acoustic warning signal sounds after 2 minutes.
➤You can acknowledge the acoustic warning signal with the button.
➤Close the cargo space door.
NOTE
The door status function is only possible if the cargo space door is additionally
installed with a door contact switch.
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Operation Frigo DC
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5.8 Stationary Cooling (supplementary equipment)
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Switching on the stationary cooling
The stationary cooling may only be operated under the following conditions:
The vehicle must be on even ground so that the condensation can drain away
The vehicle engine must be switched off and the ignition key removed
All cargo space doors must be securely shut
!
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To switch on the stationary cooling, proceed as follows:
➤Park the vehicle on a level surface.
➤Turn off the vehicle’s engine and remove the ignition key.
➤Ensure all cargo space doors are securely closed.
CAUTION!
Ensure that the protective cover of the 230 V device plug on the vehicle is
always closed when the stationary cooling is not on.
CAUTION!
Always connect the 230 V connection cable on the vehicle first before con-
necting the stationary cooling to the 230 V power supply.
Before you start the vehicle again, you must disconnect the 230 V power
supply cable again from the socket on the vehicle.
The 230 V power supply connection of the stationary cooling may only be
operated with a fault current protected switch with a nominal current of
30 mA and an earthed, splash water-protected power supply socket.
Handle the 230 V connection cable with care so that it cannot be damaged
by heat, movement or sharp objects.
If the 230 V connection cable has been stretched or pulled in any way, you
must check whether the 230 V device plug or other parts on the vehicle
have been damaged. Damaged cables must be replaced.
Only use the original 230 V connection cable with the original 230 V
MiniPlug device plug.
Only use contact spray that is suitable for electrical components when
cleaning the electrical contacts and contact pins under the protective cover
of the 230 V device plug.
Check the contacts, the cover and also the 230 V connection cable for
damage before and after use. If the contacts, the cover or the connection
cable are damaged, these must be replaced.
NOTE
The 230 V connection cable has also been especially designed and tested for
use at cold temperatures. The connection cable will not incur any damage dur-
ing normal winding at very low outside temperatures, even if the cable feels
stiffer the colder it gets.
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Frigo DC Notes on use
➤Check the contacts, the cover and the connection cable for damage.
➤First connect the connection cable to the socket on the vehicle.
➤Connect the connection cable to the power supply socket.
➤Switch on the refrigeration system at the control unit.
✓The stationary cooling switches on automatically.
Switching off the stationary cooling
To switch off the stationary cooling, proceed as follows:
➤First disconnect the connection cable from the power supply socket.
➤Disconnect the connection cable from the socket on the vehicle.
✓The stationary cooling automatically turns off.
➤Check the contacts, the cover and the connection cable for damage.
6 Notes on use
Conduct regular visual inspections to ensure the full functioning of the refrigera-
tion system, chapter “Regular visual inspections” on page 16.
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6.1 Correct loading
A
NOTE
If the cargo space doors are opened frequently, heat and moisture will
enter the cooling area. This can cause ice to form on the refrigeration sys-
tem which reduces the cooling capacity. Therefore, open the doors as little
and as briefly as possible.
Avoid extended empty runs when the refrigeration system is activated.
Regularly check proper function of the cargo space doors.
Problem-free door seals and functioning door locks contribute to high
transport safety. Therefore, regularly check the bodywork in your vehicle’s
cargo space for damage. Even minor damage can cause the refrigerated
items to not be adequately cooled, especially at high ambient tempera-
tures.
NOTICE!
Switch off the vehicle engine when you are loading or unloading the vehi-
cle.
Refer to the vehicle manufacturer’s specifications for the maximum load
(payload).
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Notes on use Frigo DC
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Before you start loading the vehicle, the cargo space must be cooled down to
the correct temperature level and must be loaded only with properly chilled
goods in order to maintain a continuous chain of refrigeration.
➤Switch the refrigeration system on, chapter “Switching on the refrigeration
system” on page 7.
➤Cool down the cargo space to the correct temperature level, chapter “Set-
ting the target temperature for the cargo space” on page 9.
➤Switch the engine off during loading.
Fig. 6: Air circulation in the refrigerator compartment
➤During loading, pay attention to the following:
– The air cooled by the evaporator (fig. 61) must be able to circulate
freely.
– The outlet area (fig. 62) of the evaporator must be completely free and
must not be covered by chilled goods.
– The loading of chilled goods (fig. 63) may only extend to approxi-
mately 30 cm below the storage area ceiling.
– The air inlet area (fan) (fig. 64) of the evaporator must be completely
free and must not be covered with chilled goods.
NOTE
If the optional door contact switch is not installed, the refrigeration system must
be manually switched off during loading and unloading.
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Frigo DC Cleaning and care
7 Cleaning and care
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➤Clean the control unit with a soft cloth and common household cleaning
agents.
➤Clean the interior lining of the cargo space in accordance with the manufac-
turer’s specifications.
8 Regular servicing
8.1 Service intervals
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If servicing of the refrigeration system is scheduled, this message will be shown
on the display immediately after the control test.
Fig. 7: Maintenance request
➤Contact your service partner.
NOTICE! Risk of damage
Do not use any acids or acidic agents for cleaning or maintenance.
NOTE
Inspection and maintenance instructions must be observed. Failure to observe
these instructions invalidates the warranty.
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Regular servicing Frigo DC
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8.2 Regular visual inspections
You should regularly conduct visual inspections of your vehicle to keep the
refrigeration system in a fully-functioning state. By doing this you can maintain the
full performance of the refrigeration system and detect early on functional faults
that could otherwise lead to expensive repairs.
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Various points are listed below, which you can regularly check without great
effort:
Vehicle
A
The cargo space insulation plays a major role in the efficient functioning of the
refrigeration system. Even minor damage can cause the refrigerated items to not
be adequately cooled, especially at high ambient temperatures. The same
applies to exterior damage to the vehicle, such as that caused by minor acci-
dents.
Therefore you should conduct regular visual inspections of your vehicle. If you
detect damage, contact the manufacturer of the cargo space insulation.
➤Regularly check:
– The proper functioning of the cargo space doors
– The door seals for damage
– The door locking function for damage
– The bodywork of the vehicle outside the cargo space for damage
Vehicle battery
A
The electrical compressor is powered by the vehicle’s battery. Therefore your
vehicle’s battery must always be sufficiently charged to ensure the refrigeration
system functions properly.
NOTE
If you detect damage to the refrigeration system or its fittings, contact your ser-
vice partner.
NOTICE!
What may appear to be only minor damage to the vehicle caused by an acci-
dent can have considerable impact on the performance of the refrigeration sys-
tem.
NOTICE!
Have the charging status of the battery regularly checked by a qualified special-
ist workshop.
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17
EN
Frigo DC Regular servicing
Possible causes for an insufficient charge could be:
Non-use of the vehicle
Predominantly driving short distances
Evaporator group
A
The evaporator group with fan is located in the cargo space. Conduct regular
visual inspections of the evaporator.
Damage to the evaporator group could lead to functional faults to the refrigera-
tion system and damage to the chilled goods.
➤Regularly check:
– The cover of the evaporator group for damage and cracks
– The condensation discharge hose for kinks or other damage
– The openings of the air inlet and air outlet for sufficient space for the air cir-
culation
Compressor-condenser unit
A
The compressor-condenser unit of the refrigeration system is located under-
neath the vehicle in the spare tire recess. Conduct regular visual inspections of
the compressor-condenser unit. Damage to the drive unit could lead to func-
tional faults to the refrigeration system and also damage to the chilled goods.
➤Regularly check:
– The compressor-condenser unit for damage
– The openings for the air outlet
NOTICE!
Ensure that the evaporator group is not damaged during loading and
unloading.
The evaporator group must not be used for fastening chilled goods.
NOTICE!
Please note, driving over curbs, potholes or similar, at an inappropriate speed
can possibly damage the drive unit of the electrical refrigeration system,
installed holders and other attachments. Any liability based on the negligence
of the vehicle user is excluded.
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EN
Faults Frigo DC
18
9Faults
9.1 Failure of the refrigeration system
In the event that the refrigeration system partially or completely fails without an
error message being shown on the display:
➤First check the refrigeration system fuses.
A
I
The fuses for the compressor and the main power supply are located in the area
directly next to the vehicle battery. Further fuses are located in the interior on the
relay block on the rear wall.
If the fault cannot be rectified, the refrigeration system may only be inspected
and repaired by an authorized Dometic service partner.
NOTICE!
Broken fuses must be replaced by equivalent fuses. Fuses can be identified by
their shape, color and their fuse value. If a replaced fuse burns out again, con-
tact your service partner.
NOTE
If access to the fuses is restricted, contact your service partner.
Amper-
age
Identifica-
tion color Consumer unit Installation site
150 A Orange Electrical compressor On the vehicle battery
100 A Blue Battery charger (only for
the supplementary
equipment “Stationary
Cooling”)
On the vehicle battery
30 A Orange Main supply On the vehicle battery
15 A Blue Evaporator fan 1 In the interior on the rear wall
15 A Blue Evaporator fan 2 In the interior on the rear wall
10 A Red Compressor, fan, sole-
noid valve
In the interior on the rear wall
3 A Violet Control unit In the interior on the rear wall
3 A Violet Control unit In the interior on the rear wall
15 A Blue Earth In the interior on the rear wall
1 A Black Only for the supplemen-
tary equipment “Station-
ary Cooling”
In the interior on the rear wall
1 A Black Only for the supplemen-
tary equipment “Station-
ary Cooling”
In the interior on the rear wall
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19
EN
Frigo DC Faults
9.2 Fault messages
Refrigeration system fault messages are shown on the display with correspond-
ing fault codes. The symbol flashes and a warning signal sounds.
➤Press the button to acknowledge the warning signal.
I
Fig. 8: Fault code display/alarm
NOTE
Fault messages are automatically deleted after the rectification of the cause.
Fault
code Cause Result/measure
Maintenance is due. The refrigeration system continues to
run, but the information remains indi-
cated on the display:
➤Contact your service partner.
The refrigeration system func-
tions can no longer be started.
➤Turn off the refrigeration system.
➤Contact your service partner.
The cargo space door is open.
(The door status function is
only possible if the cargo
space door is additionally
installed with a door contact
switch.)
The refrigeration system is switched off:
➤Close the cargo space door.
There is an undervoltage at the
power supply for the ignition.
The voltage for the ignition is not suffi-
cient:
➤Turn off the refrigeration system.
➤Switch unnecessary consumer units
off, such as the mirror or front wind-
shield heating, etc.
➤Contact your service partner.
P
8
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EN
Faults Frigo DC
20
There is an undervoltage at the
vehicle battery.
The charging voltage of the battery is
not sufficient or the voltage for the igni-
tion is not sufficient:
➤Switch unnecessary consumer units
off, such as the mirror or front wind-
shield heating, etc.
If the fault remains:
➤Turn off the refrigeration system.
➤Contact your service partner.
The control unit is defective. ➤Turn off the refrigeration system.
➤Contact your service partner.
The cargo space sensor is
defective.
➤Turn off the refrigeration system.
➤Contact your service partner.
The evaporator sensor is
defective.
➤Turn off the refrigeration system.
➤Contact your service partner.
The pressure transducer is
defective.
➤Turn off the refrigeration system.
➤Contact your service partner.
Pressure temperature alarm,
bottom. The refrigerant pres-
sure in the refrigeration system
is too low.
The outside temperature is too low:
➤Acknowledge the acoustic warning
signal with the button.
➤The refrigeration system switches
back on automatically as soon as the
outside temperature > 0 °C and the
actual temperature in the cargo
space is higher than the set tempera-
ture.
There is not sufficient refrigerant in the
system:
➤Turn off the refrigeration system.
➤Contact your service partner.
Pressure temperature alarm,
top
The outside temperature is lower than
the set value:
➤Close the cargo space doors.
or
➤Operate the refrigeration system
when the outside temperature is
>0°C.
If the fault remains:
➤Turn off the refrigeration system.
➤Contact your service partner.
Fault
code Cause Result/measure
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