Coltech MDDE-10DEN3-QA3 User manual

Important information:
Read the entire instruction manual carefully
and make sure that you fully understand
it before you use the equipment. Keep the
manual for future reference.
Viktig information:
Läs hela bruksanvisningen noggrant och
försäkra dig om att du har förstått den
innan du använder utrustningen. Spara
bruksanvisningen för framtida bruk.
Viktig informasjon:
Les disse anvisningene nøye og forsikre deg om
at du forstår dem, før du tar produktet ibruk.
Ta vare på anvisningene for seinere bruk.
Tärkeää tietoa:
Lue nämä ohjeet huolellisesti ja varmista
että olet ymmärtänyt ne, ennen kuin alat
käyttää laitetta. Säilytä ohjeet myöhempää
tarvetta varten.
Wichtiger Hinweis:
Vor Inbetriebnahme die komplette Bedienungs-
anleitung durchlesen und aufbewahren.
ENGLISHSVENSKANORSKSUOMIDEUTSCH
Luftavfuktare | Luftavfukter
Ilmankuivain | Luftentfeuchter
Art.no Model
18-4804 MDDE-10DEN3-QA3
36-6435 MDDE-10DEN3-QA3
Dehumidier
Ver. 20181016
Original instructions
Bruksanvisning i original
Originalbruksanvisning
Alkuperäinen käyttöohje
Original Bedienungsanleitung

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10 L Dehumidifier
Art.no 18-4804, 36-6435 Model MDDE-10DEN3-QA3
Please read theentire instruction manual before using theproduct and then save
it for future reference. We reserve theright for any errors in text or images and any
necessary changes made to technical data. In theevent of technical problems or other
queries, please contact our Customer Services (see address details on theback).
Safety
• Theproduct must only be connected to anearthed outlet (230 V, 50 Hz) fitted with
anRCD.
• Theproduct may be used by children aged 8 years and above and by persons
with reduced physical, sensory or mental capability or lack of experience and
knowledge provided they have been given supervision or instruction concerning
use of theproduct in asafe way and understand thehazards involved.
• Never let children play with theproduct.
• Cleaning and maintenance may be carried out by children but only under adult supervision.
• Theproduct must always stand upright.
• Never sit, cover or place foreign objects on theproduct.
• Make sure that therubber plug in thedrain hose hole is securely in place before
turning theproduct on if it is not to be used for continuous dehumidification.
• Theproduct must stand upright for at least 1 hour before it is used for thefirst
time. Thesame applies if theproduct has been placed on its side, etc. during
amove or when being cleaned.
• Make sure that theair filter is clean and fitted correctly before turning theproduct on.
• Never use theproduct if themains lead, plug or any other part is damaged or
does not work properly.
• Never try to dismantle or repair theproduct yourself.
• If theproduct needs to be connected with anextension lead or trailing socket,
make sure that thelead used is suitable for use with theproduct.
• Never plug in or unplug theproduct with wet hands.
• Never insert foreign objects into theopenings in theproduct.
• Unplug theproduct immediately if it emits strange noises, odours or smoke.
• Unplug theproduct immediately if it tips over or if it is splashed with water. Contact
aqualified service technician before using theproduct again.
• Theproduct must not be covered in any way. Make sure that no foreign objects
cover or block theair inlet/outlet. Blockages can lead to fires, electric shocks or
damage to theproduct.
• Unplug theproduct when it is not in use.

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• Never use themains lead plug for turning theproduct on or off. Theproduct
should only be switched on and off using theon/off switch.
• Before theproduct is moved, make sure it is switched off, unplugged and that
thewater tank is empty.
• Never expose theproduct to running/splashing water or other liquids. Liquid
coming in contact with electrical components can be extremely hazardous.
• Do not place theproduct where there is arisk of it falling into water or other liquids.
Do not place any objects that contain liquid on theproduct such as vases, drinks, etc.
Warning: When using therefrigerant R290.
• Do not use any other agents than those recommended by themanufacturer for
cleaning or to speed up thedefrosting process.
• Never use theproduct in areas where flammable liquids/materials or gases (petrol,
solvents, gas cylinders) are stored or used.
• Make sure that there are no holes or burns on theproduct.
• Be aware that refrigerants can be odourless.
• Theproduct should be used in areas with afloor space greater than 4 m².
Safety regulations for service and repair work
Repairs must only be carried out by authorised service personnel and only using
genuine spare parts.
1. 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.
2. 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.
3. 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.

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4. Checking for presence of refrigerant
The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.
5. 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 to hand. Have adry
powder or CO2fire extinguisher adjacent to thecharging area.
6. 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.
7. 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. Theventilation should safely disperse
any released refrigerant and preferably expel it externally into theatmosphere.
8. 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;
• the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.

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9. Checks to electrical devices
Repair 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. This shall be reported to theowner of
theequipment so all parties are advised. Initial 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,
recoveringor purging thesystem;
• that there is continuity of earth bonding.
10. Repairs to sealed components
During 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 shali 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. This 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.
Replacement parts shall be in accordance with themanufacturer’s specifications.
Note: Theuse of silicon sealant may inhibit theeffectiveness of some types of leak
detection equipment. Intrinsically safe components do not have to be isolated prior to
working on them.
11. 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. The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.

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12. 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.
13. 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.
14. Leak detection methods
The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. Leak detection
equipment shall be set at apercentage of theLFL 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. Oxygen free nitrogen (OFN) shall then be purged through thesystem
both before and during thebrazing process.
15. Removal and evacuation
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. The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.

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Therefrigerant charge shall be recovered into thecorrect recovery cylinders.
Thesystem shall be flushed with OFN to render theunit safe. This process may need
to be repeated several times. Compressed air or oxygen shall not be used for this
task. Flushing 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.
This 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 aventilation available.
16. Charging procedures
In 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.
• Label 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. The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.
17. 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.
a) Become familiar with theequipment and its operation.
b) Isolate system electrically.
c) 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.

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d) Pump down refrigerant system, if possible.
e) If avacuum is not possible, make amanifold so that refrigerant can be removed
from various parts of thesystem.
f) Make sure that cylinder is situated on thescales before recovery takes place.
g) Start therecovery machine and operate in accordance with manufacturer’s
instructions.
h) Do not overfill cylinders. (No more than 80 % volume liquid charge).
i) Do not exceed themaximum working pressure of thecylinder, even temporarily.
j) 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.
k) Recovered refrigerant shall not be charged into another refrigeration system unless
it has been cleaned and checked.
18. Labelling
Equipment shall be labelled stating that it has been de-commissioned and emptied
of refrigerant. Thelabel shall be dated and signed. Ensure that there are labels on
theequipment stating theequipment contains flammable refrigerant.
19. 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 are 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.
• The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.
• Therecovered refrigerant shall be returned to therefrigerant supplier in thecorrect
recovery cylinder, and therelevant Waste Transfer Note arranged. Do not mix
refrigerants in recovery units and especially not in cylinders.

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• 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. The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.
Buttons and functions
1. Water reservoir
2. Air filter (behind theair intake grille)
3. Control panel
4. Carrying handle
5. Air filter (behind theair intake grille)
6. Cable tidy (for storage)
7. Air outlet
8. Hose connection for continuous operation