Bimar DEU322 User manual

type DEU322 (mod. FDD20-5162BWR5)
INSTRUCTION BOOKLET
DEHUMIDIFIER

General Information
Thank you for buying our Bimar DEU322 dehumidifier.
Air contains a certain amount of water in the form of vapour. This vapour determines the
degree of humidity in a particular environment. As the temperature goes up, the capacity
of the air to hold water vapour increases. This is why as soon as the temperature in the
house drops, the air releases the water vapour that is in it, which is then deposited as
condensation on cold surfaces, such as windows, walls, etc. The dehumidifier gets rid of
part of the hum
idity from the air and stops, for example, mould or mildew forming.
According to experts, the ideal conditions for our health and for the home are between 40%
and 60% relative humidity.
This symbol tells you to read these instructions carefully before using
the appliance, and to inform any third parties if necessary. Keep the
instruction booklet for further reference throughout the lifetime of the
appliance. If when reading these instructions you find any parts
difficult to understand or have any doubts, contact the manufacturer
at the address provided on the back page before using the product.
This symbol indicates:
Additional information in the manual.
This symbol indicates:
Service instruction: read the technical manual
This symbol highlights instructions and precautions for safe use.
This symbol indicates: :
Only use the appliance indoors.
This symbol indicates:
Caution: Fire hazard.
The appliance uses a flammable refrigerant. If
the refrigerant escapes and is exposed to an
external source of ignition, there is a risk of fire.
GENERAL WARNINGS
•This appliance is intended for domestic use only (therefore, it
is not suitable for professional use), to purify and dehumidify,
i.e. reduce the percentage of relative humidity in indoor
environments, in the manner reported in this manual. Do not

use the appliance outdoors, or in particularly dusty
environments, or in the presence of extremely volatile
materials which could clog the filter or damage the motor.
•This is a piece of equipment that intentionally emits and/or
receives radio waves for radiocommunication and/or
radiodetermination purposes.
•Examples of household appliances are appliances for
typical household functions, those used in the home, or
those which may be used for typical household functions
even by untrained persons:
-in shops, offices and other similar workplaces;
-on farms and in similar locations;
-by the customers of hotels, motels and other residential
environments;
-in bed and breakfast establishments.
•The appliance has been designed to work at temperatures
between 5°C and 32°C.
•Only use the dehumidifier if all the components are
correctly inserted.
•Always use the dehumidifier in an upright position only; do
not sit or stand on the unit.
•Warning: when using electrical appliances, always comply
with the basic safety precautions to avoid the risks of fire,
electric shock and physical injury. Greater care and
precautions must be taken when using electrical appliances
that are equipped with a water tank -if the water overflows
or if the cord or the plug should get wet, first disconnect the
device from the power socket by turning it off at the switch
on the electrical panel and only unplug from the socket

afterwards. Dry both the plug and the mains cable carefully
before plugging into the power socket again. If in doubt, call
in qualified staff.
•This appliance can be used by children aged from 8 years
and above and persons with reduced physical, sensory or
mental capabilities or lack of experience or the necessary
knowledge providing they are supervised or have been
instructed on the safe use of the appliance and understand
the hazards involved. Children must not play with the
appliance. Cleaning and maintenance intended to be
carried out by the user should not be done by children
unless they are supervised.
•Take suitable precautions to prevent children from playing
with the appliance. The appliance and all its accessories
should be kept out of the reach of children.
•Do not obstruct the air inlet or air outlet grille.
•Do not insert fingers or objects into the ducts of the air inlet
and outlet grilles.
•Do not touch the appliance or the plug with wet hands or
feet.
•Avoid exposing body parts to the air flowing out of the
appliance to avoid damages to your health.
•Unplug the appliance from the socket when not in use.
•Do not move the appliance while in operation.
•Do not pull on the power cable or the appliance itself to
remove the plug from the power socket.
•Do not move the appliance by pulling the cable.

•Always disconnect the appliance from the power socket
before assembling, dismantling, emptying the tank, and
before cleaning the filter and the appliance.
•If the power cable is damaged, it must be replaced by the
manufacturer or its technical support service, or by a person
with similar qualifications, to prevent all risks.
•This appliance is not intended for operation by means of an
external timer or with a separate remote control system, to
avoid the risk of fire if the appliance is covered or not
correctly positioned.
•Never leave the device exposed to the weather (sun, rain,
etc.).
•To guard against all risk of electric shock, do not immerse the
plug, the mains cable or the appliance in water or any other
liquid.
•Do not drink or use the water that collects in the tank.
•Any other use constitutes misuse and is hazardous. The
manufacturer cannot be held liable for any damage arising
from misuse or incorrect or irresponsible use, and/or from
repairs carried out by unqualified persons.
GENERAL WARNINGS
•This appliance is intended for domestic use only (therefore, it
is not suitable for professional use), to dehumidify, i.e. reduce
the percentage of relative humidity in indoor environments,
in the manner reported in this manual. Do not use the
appliance outdoors, or in particularly dusty environments, or
in the presence of extremely volatile materials which could
clog the filter or damage the motor.

•Examples of household appliances are appliances for
typical household functions, those used in the home, or
those which may be used for typical household functions
even by untrained persons:
-in shops, offices and other similar workplaces;
-on farms and in similar locations;
-by the customers of hotels, motels and other residential
environments;
-in bed and breakfast establishments.
•The appliance has been designed to work at temperatures
between 5°C and 32°C.
•Only use the dehumidifier if all the components are
correctly inserted.
•Always use the dehumidifier in an upright position only; do
not sit or stand on the unit.
•Warning: when using electrical appliances, always comply
with the basic safety precautions to avoid the risks of fire,
electric shock and physical injury. Greater care and
precautions must be taken when using electrical appliances
that are equipped with a water tank -if the water overflows
or if the cord or the plug should get wet, first disconnect the
device from the power socket by turning it off at the switch
on the electrical panel and only unplug from the socket
afterwards. Dry both the plug and the mains cable carefully
before plugging into the power socket again. If in doubt, call
in qualified staff.
•This appliance can be used by children aged from 8 years
and above and persons with reduced physical, sensory or
mental capabilities or lack of experience or the necessary

knowledge providing they are supervised or have been
instructed on the safe use of the appliance and understand
the hazards involved. Children must not play with the
appliance. Cleaning and maintenance intended to be
carried out by the user should not be done by children
unless they are supervised.
•Take suitable precautions to prevent children from playing
with the appliance. The appliance and all its accessories
should be kept out of the reach of children.
•Do not obstruct the air inlet or air outlet grille.
•Do not insert fingers or objects into the ducts of the air inlet
and outlet grilles.
•Do not touch the appliance or the plug with wet hands or
feet.
•Avoid exposing body parts to the air flowing out of the
appliance to avoid damages to your health.
•Unplug the appliance from the socket when not in use.
•Do not move the appliance while in operation.
•Do not pull on the power cable or the appliance itself to
remove the plug from the power socket.
•Do not move the appliance by pulling the cable.
•Always disconnect the appliance from the power socket
before assembling, dismantling, emptying the tank, and
before cleaning the filter and the appliance.
•If the power cable is damaged, it must be replaced by the
manufacturer or its technical support service, or by a person
with similar qualifications, to prevent all risks.

•This appliance is not intended for operation by means of an
external timer or with a separate remote control system, to
avoid the risk of fire if the appliance is covered or not
correctly positioned.
•Never leave the device exposed to the weather (sun, rain,
etc.).
•
To guard against all risk ofelectric shock,do not immersethe
plug, the mains cable or the appliance in water or any other
liquid.
•Do not drink or use the water that collects in the tank.
•Any other use constitutes misuse and is hazardous. The
manufacturer cannot be held liable for any damage arising
from misuse or incorrect or irresponsible use, and/or from
repairs carried out by unqualified persons.

This product contains fluorinated greenhouse gases,
which are hermetically sealed. The refrigerant used is
R290 and its relative global warming potential
(GWP) is 3.
Additional warning for appliances with refrigerant gas
R290 (refer to the data plate for the type of gas used).
Caution: Fire hazard.
Please read these instructions carefully before using the
appliance. R290 is a refrigerant gas that conforms to EU
environmental directives.
This appliance contains approximately 60g of R290
refrigerant gas.
The appliance must be installed, used and stored in a
place with a surface area greater than 4m².
1. WARNINGS FOR REFRIGERANT GAS R290
1.1 The equipment contains gas R290 (flammability class A3).
The amount expressed in weight and in CO2 of fluorinated
greenhouse gas for which the device is designed and the global
warming potential of this gas is 60 g.
The equipment must be stored in a well ventilated location with
a minimum room size of 4 m2.
The equipment must be installed, used and kept in a room with
a floor surface area greater than 4 m2.
1. WARNING FOR R290 REFRIGERANT GAS
1.1The appliance contains R290 gas (flammability
classification A3).
The appliance shall be stored in a room Without
con tin uousl y ope ra tin g ign itio n source s ( for

e xample : open flames, an operating gas appliance
or an operating ele ctric heater ).
Be aware that the refrigerants may not contain an odour.
R290 is a refrigerant gas in compliance with the European
directives on environment. do not pierce any part of the
refrigerant circuit.
Do not use means to accelerate the defrosting process or to
clean, other than those recommended by the manufacturer.
Do not use tools different from those recommended by the
manufacturer
when defrosting and cleaning the appliance.
If the appliance is installed, used or stored in a non-ventilated area,
the room must be designed to prevent the accumulation of
refrigerant leaks with the consequent fire or explosion hazard
due to the refrigerant combustion caused by electrical heaters,
stoves or others sources of ignition.
Compliance with national gas regulations shall be observed.
Keep ventilation openings clear of obstruction.
The appliance shall be stored so as to prevent mechanical
damage from occurring.
Any person who is involved with working on or breaking into a
refrigerant circuit should hold a current valid certificate from an
industry-accredited assessment authority, which authorises
their competence to handle refrigerants safely in accordance with
an industry recognised assessment specification.
Servicing shall only be performed as recommended by the
equipment manufacturer. Maintenance and repair requiring
the assistance of other skilled personnel shall be carried out
under the supervision of the person competent in the use of
flammable refrigerants.

Transport of equipment containing flammable refrigerants.
See transport regulations.
Marking of equipment using signs.
See local regulations.
Disposal of equipment using flammable refrigerant.
See national regulations.
Storage of equipment/appliances.
The storage of equipment should be in accordance with the
manufacturer’s instructions.
Storage of packed (unsold) equipment.
Storage package protection should be constructed such that
mechanical damage to the equipment inside the package will
not cause a leak of the refrigerant charge. Th e maximum
number of pieces of equipment permitted to be stored together
will be determined by local regulations.
Information on servicing
Checks to the area. Prior to beginning work on systems
containing flammable refrigerants, safety checks are necessary
to ensure that the risk of ignition is minimised.
For repair to the refrigerating system, the following precautions
shall be complied with prior to conducting work on the system.
Work procedure. Work shall be undertaken under a controlled
procedure so as to minimise the risk of a flammable gas or
vapour being present while the work is being performed.
General work area. All maintenance staff and others working in
the local area shall be instructed
on the nature of work being carried out. Work in confined
spaces shall be avoided. The area around the workspace shall
be sectioned off.Ensure that the conditions within the area have
been made safe by control of

flammable material.
1.1.5 Checking for presence of refrigerant. T he area shall be
checked with an appropriate refrigerant detector prior to and
during work, to ensure the technician is aware of potentially
flammable atmospheres. ensure that the leak detection
equipment being used is suitable for use with flammable
refrigerants, i.e. non-sparking, adequately sealed or intrinsically
safe.
1.1.6 Presence of fire extinguisher. if any hot work is to be
conducted on the refrigeration equipment or any associated
parts, appropriate fire extinguishing equipment shall be available at
hand.
Have a dry powder or CO2 fire extinguisher adjacent to the
charging area.
1.1.7 No ignition sources. No person carrying out work in
relation to a refrigeration system which involves exposing any
pipe work that contains or has contained flammable refrigerant
shall use any sources of ignition in such a manner that it may
lead to the risk of fire or explosion.
all possible ignition sources, including cigarette smoking, should
be kept sufficiently far away from the site of installation,
repairing, removing and disposal, during which flammable
refrigerant can possibly be released to the surrounding space.
Prior to work taking place, the area around the equipment is to
be surveyed to make sure that there are no flammable hazards
or ignition risks. No Smoking signs shall be displayed.
1.1.8 Ventilated area. Ensure that the area is in the open or that
it is adequately ventilated before breaking into the system or
conducting any hot work.

a degree of ventilation shall continue during the period that the
work is carried out. T he ventilation should safely disperse any
released refrigerant and preferably expel it externally into the
atmosphere.
1.1.9 Checks to the refrigeration equipment. Where electrical
components are being changed, they shall be fit for the
purpose and to the correct specification. At all times the
manufacturer’s maintenance and service guidelines shall be
followed. If in doubt consult the manufacturer’s technical
department for assistance.
The following checks shall be applied to installations using
flammable refrigerants. The charge size is in accordance with the
room size within which the refrigerant containing parts are
installed; th e ventilation machinery and outlets are operating
adequately and are not obstructed; if an indirect refrigerating
circuit is being used, the secondary circuit shall be checked for
the presence of refrigerant; marking to the equipment
continues to be visible and legible. markings and signs that are
illegible shall be corrected; refrigeration pipe or components are
installed in a position where they are unlikely to be exposed to
any substance which may corrode refrigerant containing
components, unless the components are constructed of
materials which are inherently resistant to being corroded or are
suitably protected against being so corroded.
Checks to electrical devices. R epair and maintenance to electrical
components shall include initial safety checks and component
inspection procedures. if a fault exists that could compromise
safety, then no electrical supply shall be connected to the circuit
until it is satisfactorily dealt with. if the fault cannot be corrected
immediately but it is necessary to continue operation, an

adequate temporary solution shall be used. T his shall be
reported to the owner of the equipment so all parties are advised.
i nitial safety checks shall include: that capacitors are discharged:
this shall be done in a safe manner to avoid possibility of sparking;
that there no live electrical components and wiring are exposed
while charging, recovering or purging the system; that there is
continuity of earth bonding.
Repairs to sealed components. D uring repairs to sealed
components, all electrical supplies shall be disconnected from
the equipment being worked upon prior to any removal of
sealed covers, etc. if it is absolutely necessary to have an
electrical supply to equipment during servicing, then a
permanently operating form of leak detection shall be located
at the most critical point to warn of a potentially hazardous
situation. Particular attention shall be paid to the following to
ensure that by working on electrical components, the casing is
not altered in such a way that the level of protection is affected.
T his shall include damage to cables, excessive number of
connections, terminals not made to original specification,
damage to seals, incorrect fitting of glands, etc. Ensure that
apparatus is mounted securely. Ensure that seals or sealing
materials have not degraded such that they no longer serve the
purpose of preventing the ingress of flammable atmospheres.
r eplacement parts shall be in accordance with the
manufacturer’s specifications.
Repair to intrinsically safe components. Do not apply any
permanent inductive or capacitance loads to the circuit without
ensuring that this will not exceed the permissible voltage and
current permitted for the equipment in use. Intrinsically safe
components are the only types that can be worked on while live

in the presence of a flammable atmosphere. T he test apparatus
shall be at the correct rating. Replace components only with parts
specified by the manufacturer. Other parts may result in the
ignition of refrigerant in the atmosphere from a leak.
Cabling. Check that cabling will not be subject to wear,
corrosion, excessive pressure, vibration, sharp edges or any
other adverse environmental effects. The check shall also take
into account the effects of aging or continual vibration from
sources such as compressors or fans.
Detection of flammable refrigerants. Under no circumstances
shall potential sources of ignition be used in the searching for or
detection of refrigerant leaks. A halide torch (or any other
detector using a naked flame) shall not be used.
Leak detection methods. T he following leak detection methods
are deemed acceptable for systems containing flammable
refrigerants. Electronic leak detectors shall be used to detect
flammable refrigerants, but the sensitivity may not be
adequate, or may need re-calibration. (detection equipment
shall be calibrated in a refrigerant-free area). Ensure that the
detector is not a potential source of ignition and is suitable for
the refrigerant used. L eak detection equipment shall be set at
a percentage of the if of the refrigerant and shall be calibrated
to the refrigerant employed and the appropriate percentage of
gas (25 % maximum) is confirmed. Leak detection fluids are
suitable for use with most refrigerants but the use of detergents
containing chlorine shall be avoided as the chlorine may react
with the refrigerant and corrode the copper pipe-work. If a leak
is suspected, all naked flames shall be removed/ extinguished. If
a leakage of refrigerant is found which requires brazing, all of
the refrigerant shall be recovered from the system, or isolated

(by means of shut off valves) in a part of the system remote
from the leak. O xygen free nitrogen (ofn) shall then be
purged through the system both before and during the
brazing process.
Removal and evavuation. When breaking into the refrigerant
circuit to make repairs or for any other purpose conventional
procedures shall be used. However, it is important that best
practice is followed since flammability is a consideration. T he
following procedure shall be adhered to:
Remove refrigerant;
Purge the circuit with inert gas;
Evacuate;
Purge again with inert gas;
Open the circuit by cutting or brazing.
The refrigerant charge shall be recovered into the correct recovery
cylinders.
The system shall be flushed with OFN to render the unit safe.
T his process may need to be repeated several times. Compressed
air or oxygen shall not be used for this task.
F lushing shall be achieved by breaking the vacuum in the system
with ofn and continuing to fill until the working pressure is
achieved, then venting to atmosphere, and finally pulling down
to a vacuum. T his process shall be repeated until no refrigerant is
within the system. When the final OFN charge is used, the
system shall be vented down to atmospheric pressure to enable
work to take place. This operation is absolutely vital if brazing
operations on the pipe-work are to take place. Ensure that the
outlet for the vacuum pump is not close to any ignition sources
and there is ventilation available.

Charging Procedures. I n addition to conventional
charging procedures, the following requirements shall be
followed. Ensure that contamination of different refrigerants does
not occur when using charging equipment. Hoses or lines shall
be as short as possible to minimise the amount of refrigerant
contained in them. Cylinders shall be kept upright. Ensure that
the refrigeration system is earthed prior to charging the system
with refrigerant. L abel the system when charging is complete (if
not already). Extreme care shall be taken not to overfill the
refrigeration system. Prior to recharging the system it shall be
pressure tested with ofn. T he system shall be leak tested on
completion of charging but prior to commissioning. a follow up
leak test shall be carried out prior to leaving the site.
Decommissioning. Before carrying out this procedure, it is
essential that the technician is completely familiar with the
equipment and all its detail. it is recommended good practice
that all refrigerants are recovered safely. Prior to the task being
carried out, an oil and refrigerant sample shall be taken in case
analysis is required prior to re-use of reclaimed refrigerant. it is
essential that electrical power is available before the task is
commenced.
- Become familiar with the equipment and its operation. Isolate
system electrically. Before attempting the procedure ensure
that:
-Mechanical handling equipment is available, if required, for
handling refrigerant cylinders;
All personal protective equipment is available and being used
correctly.
-The recovery process is supervised at all times by a competent
person;

-Recovery equipment and cylinders conform to the appropriate
standards.
-Pump down refrigerant system, if possible.
-If a vacuum is not possible, make a manifold so that refrigerant
can be removed from various parts of the system.
-Make sure that cylinder is situated on the scales before
recovery takes place.
-Start the recovery machine and operate in accordance with
manufacturer’s instructions.
-Do not overfill cylinders. (No more than 80 % volume liquid
charge).
-Do not exceed the maximum working pressure of the cylinder,
even temporarily.
-When the cylinders have been filled correctly and the process
completed, make sure that the cylinders and the equipment are
removed from site promptly and all isolation valves on the
equipment are closed off.
-Re covered refrigerant shall not be charged into another
refrigeration system unless it has been cleaned and checked.
1.1.19 Labelling. Equipment shall be labelled stating that it has
been de-commissioned and emptied of refrigerant. Th e label
shall be dated and signed. E nsure that there are labels on the
equipment stating the equipment contains flammable
refrigerant.
1.1.20 Recovery.When removing refrigerant from a system,
either for servicing or decommissioning, it is recommended
good practice that all refrigerants are removed safely.
When transferring refrigerant into cylinders, ensure that only
appropriate refrigerant recovery cylinders are employed.
Ensure that the correct number of cylinders for holding the total

system charge is available. All cylinders to be used are
designated for the recovered refrigerant and labelled for that
refrigerant (i.e. special cylinders for the recovery of refrigerant).
Cylinders shall be complete with pressure relief valve and
associated shut-off valves in good working order. Empty
recovery cylinders are evacuated and, if possible, cooled before
recovery occurs. T he recovery equipment shall be in good working
order with a set of instructions concerning the equipment that is
at hand and shall be suitable for the recovery of flammable
refrigerants. In addition, a set of calibrated weighing scales shall
be available and in good working order. Hoses shall be
complete with leak-free disconnect couplings and in good
condition. Before using the recovery machine, check that it is in
satisfactory working order, has been properly maintained and that
any associated electrical components are sealed to prevent
ignition in the event of a refrigerant release. Consult
manufacturer if in doubt. T he recovered refrigerant shall be
returned to the refrigerant supplier in the correct recovery cylinder,
and the relevant Waste tr ransfer n ote arranged. do not mix
refrigerants in recovery units and especially not in cylinders. if
compressors or compressor oils are to be removed, ensure that
they have been evacuated to an acceptable level to make
certain that flammable refrigerant does not remain within the
lubricant. T he evacuation process shall be carried out prior to
returning the compressor to the suppliers. Only electric heating
to the compressor body shall be employed to accelerate this
process.
When oil is drained from a system, it shall be carried out safely.

INSTALLATION
•After removing the packaging, check that the appliance is intact; if in doubt, do not
use it and contact a qualified professional. The packaging elements (plastic bags,
polystyrene, metal tacks, etc.) must not be left in reach of children or irresponsible
people, as they can be dangerous. They must be disposed of according to current
regulations.
•Before connecting the equipment, make certain that the plate information (voltage,
etc.) correspond to the characteristics of the electricity distribution network. This
appliance must be connected to a socket that has an effective earthing device (the
manufacturer declines any liability that may arise from failure to comply with this
rule). Check that no other appliances with a high energy consumption are
connected to the power supply, to avoid overloading and the risk of fire. In general,
the use of adapters, multiple sockets and/or extension leads is not recommended.
If their use is unavoidable, they must comply with current safety regulations and
their current capacity (amperes) must be no lower than the maximum current draw
of the appliance.
•The appliance must be installed and/or placed in a location with a surface area of at
least 4 m².
•Do not install the dehumidifier in environments where there are flammable
products (spray cans or canisters containing gas, liquids or solids), or in dusty
environments.
•Place the appliance in a vertical position,
supported on all feet as well as: away
from sources of heat, keep away from
fabrics (curtains, hanging laundry, etc.)
or anything else that might come into
contact and/or obstruct the inlet and
outlet grilles; keep away from bathtubs,
sinks or similar, to avoid the appliance
being splashed with water, or falling into
these.
•Ensure there is a free space around the
appliance of at least 50 cm.
•The appliance must be placed on a wide, strong, stable surface (do not place on a
shelf), not on an incline (the water may overflow and escape), smooth (not rough) or
in a place where it might be knocked.
•The appliance must not be placed just below a power socket.
•The power socket must be easily accessible so that the plug can be removed easily
in an emergency.
•Make sure that the mains cable is correctly positioned and is not in contact with hot
parts or sharp edges, or wound around the appliance or twisted and does not
become entangled, to prevent the appliance from falling.