Aqua DH-4 Quick guide

MOBILE DEHUMIDIFIER
INSTALLATION AND INSTRUCTION MANUAL
www.aqua.it
DHseries
Technology
Operation
Replacement parts
Airdehumidifers
AQUA
Readtheseoperatinginstructionscarefully
beforecommissioning / usingthisdevice!
DH-15
DH-6
DH-4
DH-2

Contents
These instructions are an integral part of the unit and must always be
kept in the vicinity of the installation location or on the unit itself.
Subjecttomodifcations; noliabilityacceptedforerrorsormisprints!
Airdehumidification 4
Safetynotes 6
Intendeduse 7
Customerserviceandwarranty 7
Environmentalprotectionandrecycling 7
Unitdescription 8
Set-up 9
Commissioning 10
Decommissioning 12
Transportation 12
Careandmaintenance 13
Troubleshooting 14
Electricalconnectiondiagram 15
Maintenanceprotocol 16
Technical data 17
3
Air dehumidifIers

Itisevidentthatthecorrosion
ratebelow50% relative humidity
(RH) islow, and below 40%
isnegligible.
Thecorrosion rate increases
significantlyabove60% RH. This
threshold for damage as theresult
ofhumidityalsoappliestoother
materials, suchaspowdery
substances, packaging, wood
andelectronic units.
Buildingsmaybedriedinavariety
of
1. By heating and air exchange:
Theairintheroom is
heatedinorder for moisture
toberemoved and drained
outside. Alloftheenergy that
isinvolvedislosttogetherwith
themoistairthatisreleased.
2. By air dehumidification:
Themoistairthatispresent
withinanenclosedspace
iscontinuouslydehumidified
according to the condensation
principle.
Thecorrelations occurring when
airisdehumidifiedare based
onphysicallaws.
Theseare depicted here
ingraphicalforminorder
toprovide you with a brief
overviewoftheprinciplesofair
dehumidification.
Theuseof
AQUAairdehumidifiers
EvenifWindows and doors
are well insulated, water
andmoisture are capable
ofpenetratingeventhick
concrete walls.
Thewaterrequired
forsettingintheproduction
ofconcrete, mortar and plaster
etc. mayonlybediffused after
1-2months.
Evenmoisture trapped
inthemasonryafterhigh-
waterorafoodisreleased very
slowly.
Thesame is also true ofmoisture
containedinforexamplestored
materials.
Themoisture (water vapour)
released from parts of abuilding
ormaterialsisabsorbed
bythesurrounding air. As a result,
themoisture content increases,
whichultimatelygivesrise
tocorrosion, mould, rot, peeling
ofpaintandotherunwanteddamage.
Bywayofexample, thediagram
showsthecorrosion rate of metal
indifferent levels of humidity.
Air dehumidification
With regard to energy
consumption, airdehumidification
hasonedistinctadvantage:
Energy expenditure is limited
exclusivelytotheairvolumes
present., The mechanical heat that
isreleased by the dehumidification
process is fed back into the room.
Under normal use, the air
dehumidifier uses approximately
25% of the energy that
is required for the "heating
and ventilating" principle.
Relativehumidity
Ourambientairisagaseous
mixture which always contains
acertainvolumeofwater
intheformofwatervapour.
Thisvolumeofwaterisspecified
ingperkgofdryair(absolute
moisture content).
1m3ofairweighsapprox.1.2kg
at20°C
Dependingonthetemperature,
eachkgofairisonlycapable
ofabsorbingacertainvolume
ofwatervapour. Once this
capacityhasbeenreached, the
airisreferred to as "saturated"
andhasarelative humidity (RH)
of100%.
Relativehumidityisunderstood
tomeantheratiobetween
thecurrent volume of water
vapourin the air and the maximum
possiblevolumeofwatervapour
atthesametemperature.
Theabilityoftheairtoabsorb
watervapourincreases
asthetemperature rises.
I.e. themaximumpossible
(absolute) watercontentbecomes
greater as the temperature rises.
4
Air dehumidifIers
■
■
■
■
corrosion rate
Relative humidity%

Thecondensation
ofwatervapour
Becausethecapacityfor
themaximumpossiblevolume
ofwatervapour increases astheair
isheated, thevolumeofwater
vapourcontainedremains constant
andsorelative humidity falls.
Incontrast, becausethecapacity
forthemaximumpossiblevolume
ofwatervapourdecreases
astheairiscooled, thevolume
ofwatervapourcontainedremains
constantandsorelative humidity
increases.
Ifthetemperature continues
tofall, thecapacityfor
themaximumpossiblevolume
ofwatervapourisreduced somuch
sothatitisultimatelyequaltothe
volumeofwatervapourcontained
intheair.
Thistemperature is referred
toas"dewpoint". Iftheair
iscooledtobelowdewpoint,
thevolumeofwatervapour
intheairwillbecomegreater than
themaximumpossiblevolume
ofwatervapour.
Atthispoint, thewatervapour
beginstoprecipitate.
Itthencondensestowater. The air
isthendeprivedofhumidity.
Examplesofcondensationinclude
steamed-upwindowpanes
inwinter, or the moisture on the
outsideofacolddrinksbottle.
Astherelative humidity oftheair
increases, so too does dew
point, makingiteasierfor
thetemperature to fall below it.
Buildingmaterialsandstructures
are capable of absorbing
considerablevolumesofwater,
suchasbrick90-190l/m³, heavy
concrete 140-190 l/m³ and
limestone180-270l/m³.
Thedryingofmoistmaterialssuch
asmasonryiseffected as follows:
■ Themoisture
movesfrom
theinside
ofthematerial
toitssurface
■ Evaporationoccurs
onthesurface= Transfer
ofwatervapourtotheambient
air
Temp.Water vapour content in g/m3athumidityof
°C 40%60%80%100%
-5 1,3 1,9 2,6 3,3
+10 3,8 5,6 7,5 9,4
+15 5,1 7,7 10,2 12,8
+20 6,9 10,4 13,8 17,3
+25 9,2 13,8 18,4 23,0
+30 12,9 18,2 24,3 30,3
■ Theaircontainingwatervapour
isconstantlycirculated through
theAQUAairdehumidifier.
Theairisdehumidifiedand,
slightlyheated, leavestheunit
inorder to re-absorb water
vapour.
■ Inthisway, the moisture
containedinthematerial
isreduced gradually.
The material is dried!
Theaccumulatedcondensate
iscollectedintheunitfrom where
itisdrainedoff.
Evaporator Condenser
°C
30
25
20
15
%r.F.
100
90
80
70
60
50
40
30
20
10
+
+
-
Temperature
Humidity
Process
airdirection
Asitflowsthroughorovertheevaporator, the air stream is cooled
todewpoint. Thewatervapourcondenses, andiscollected
inacondensatetrapfromwhereitisdrainedoff.
Drying materials
5
5
Air dehumidifIers

Condensationheat
TheEnergy transferred to the air
from the condenser consists of:
1. theamountofheatderived
beforehand in the evaporator.
2. theelectricaldriveenergy.
3. thecondensationheatreleased
bytheliquefyingofthewater
vapour.
Energy must be supplied when
liquidisconvertedintoagas.
Thisenergy is designated
asevaporationheat. Itdoesnot
causeanyincrease in temperature,
butisrequired to convert a liquid
intoagas. Conversely, energy
isreleased when gas is liquefied,
thisisdesignatedascondensation
heat.
Theamountofenergy from
evaporationheat and condensation
heatisthesame.
For water, this is:
2250 kJ/kg (4.18 kJ = 1kcal)
From this it is evident that
thecondensationofwatervapour
causesalarge quantity of energy
tobereleased.
Ifthemoisture that
itistobecondensedisnot
introduced by evaporation
intheroom itself, but
from outside, e.g. through
ventilation, thecondensation
heatreleased contributes
totheheatingoftheroom.
With drying operations, a heat
cycleiscreated, whereby heat
isconsumedforevaporation
andreleased for condensation.
Whendehumidifyingfedair,
alarger contribution of heat
iscreated, which manifests itself
asatemperature increase.
Generally speaking, the time
required for the drying
process is not only dependent
onthe output of the unit, but
isdetermined to a greater extent
by the speed at which the material
or building section loses its
moisture.
Safety notes
Theunitswere subjected to
exten
sivematerial, functionalandqual
ityinspectionspriortodelivery.
However, dangers can emanate
from the units if they are used
improperly or not as intended by
untrainedpersonnel!
Thefollowingnotesmustbe
observedinfull:
■ Theunitsmaynotbeinstalled
oroperatedinexplosive
environments
■ Theunitsmustnotbeinstalled
oroperatedinatmospheres
containingoil, sulphur, chlorine
orsalt
■ Theunitsmustbeinstalled
uprightandinastableposition
■ Theunitsmustnotbeexposed
todirect jets of water
■ Anunobstructedairinletand
airoutletmustbeguaranteed
atalltimes
■ Theair-inlet grille must always
bekeptfree of dirt and loose
objects
■ Theunitsmustnotbecovered
duringoperation
■ Neverstickforeign objects into
theunits
■ Theunitsmustnotbe
transportedduringoperation
■ Theunitsmustonlybe
transportedwhenthe
condensatecontainerisempty
andtheevaporatorisdry
■ Allelectricalcablesonthe
outsideoftheunitsmust
mustbeprotected against
damage (e.g. byanimalsetc.)
■ Before each change of location,
thecondensatecontainermust
beemptied
ATTENTION
Extensionstotheconnection
cablemustonlybeconducted
byauthorisedspecialist
electricians, takinginto
considerationtheunitpower
consumption, cablelength
andlocaluse.
!
ATTENTION
Work on the refrigerant
systemandontheelectrical
equipmentmustonly
beconductedbyaspecially-
authorisedspecialist.
!
Air dehumidifIers
6

Theunitsare designed exclusively
fordryinganddehumidification
purposesinindustrialor
commercial situations on the basis
oftheirstructuraldesignand
equipment.
Theunitsmustonlybeoperated
byappropriately instructed
personnel.
With non-observance of the
manufacturer's specifications, the
respective local legal requirements
orafterarbitraryalterationstothe
units, themanufacturer shall not
beliableforresulting damages.
Customer service and
warranty
Inorder to make warranty claims,
itisessentialthattheordering
partyortheirrepresentative
completeandreturn
the "certifcate of warranty" to
AQUA
atthetimewhentheequipmentis
purchased and commissioned.
Theunitswere inspected
multipletimestoverify
theircorrect function.
However, if malfunctions should
arisethatcannotberemedied by
theoperatorwiththeassistanceof
thetroubleshooting section, please
contactyourspecialistdealeror
contractualpartner.
Intended use Environmental
protection
and recycling
Disposing of packaging
Whendisposingofpackaging
material, pleaseconsiderour
environment.
Ourunitsare carefully packed
anddelivered in stable cartons for
transportationand, ifapplicable,
onawoodenpallet.
Thepackagingmaterialsare
environmentally-friendly and can
berecycled.
Byrecycling packaging materials,
youmakeavaluablecontribution
tothereduction of waste and
conservationofrawmaterials.
Therefore, only dispose
of packaging material
at appropriate collection points.
Disposal of the old unit
Themanufacturingprocess for
theunitsissubjecttocontinuous
qualitycontrol.
Onlyhigh-gradematerialsare
processed, the majority of which
are recyclable.
You also contribute
toenvironmental protection
byensuringthatyourold
equipmentisonlydisposed
ofinanenvironmentally-friendly
manner.
Therefore, only bring the old
unit to an authorised recycling
business or to an appropriate
collection point
.
NOTE
Operationotherthanthetypes
listedinthisoperatingmanual
isprohibited.
With non-observance, any
liabilityandclaimtowarranty
expire.
NOTE
Installationworkmayonly
becarriedoutbyauthorised
qualifedtechnicians.
byauthorisedspecialists.
Important information
concerning recycling
Theunitsare operated with
environmentally-friendly and
ozone-neutralR22refrigerant.
Themixture of refrigerant and oil
withintheunitmustbedisposed
ofproperly in accordance with
thestatutoryorlocally-applicable
regulations.
ATTENTION
Copyright
Theredistribution, even
inpart, ortheuseofthis
documentationforpurposes
otherthanintendedisstrictly
prohibitedwithoutthewritten
authorisationofAQUA
!
Air dehumidifIers
7

Unit description
Theunitshavebeendesignedfor
universalandstraightforward air
dehumidification.
Theircompactdimensionsallow
theunittobetransportedandset
upwithease.
Theunitsoperateinaccordance
withthecondensationprinciple
andare equipped with a
hermeticallysealedrefrigerant
system, low-noiseandlow-
maintenancefan, thefully
automaticelectroniccontrol,
built-inhumidistatandconnection
cablewithplugandhydrantsfor
theon-siteCondensateensure
trouble-freeuse.
Theunitsconform
tothefundamentalhealthand
safetyrequirements of the
appropriate EU stipulations.
Theunitsare dependable and offer
easeofoperation.
Locations at which units are
used
Theunitsare used in all locations,
where dry air is a must and where
economicconsequentialdamage
(suchasthatcausedbymould)
mustbeprevented.
The units may be used for
the drying and dehumidification
of areas such as :
■ Newbuildings, industrial
buildings
■ Basements, storagerooms
■ Archives laboratories
■ Weekend homes, caravans
■ Bathrooms, wash rooms
andchangingrooms etc.
backtonormaldehumidification
mode.
Iftheroom temperature
issufficientlyhigh, thesurface
ofthefinswillnotbecoldenough
forrimeformationtooccur,
rendering defrosting unnecessary.
Therefore, theairdehumidifiers
workeconomically.
Thecooledanddehumidifiedair
isre-heated by the condenser
(heatexchanger), andblownback
intotheroom through the outlet
grille. Theprocessed, dry, heated
airthenre-mixes withtheroom air.
Continuouscirculation of the room
airthrough the unit gradually
reduces the relative humidity
(% RH) intheroom to the desired
humiditylevel
Dependingontheroom
temperature and the humidity,
only30- 40% electricalenergy
isrequired, in accordance with
theoutputoftheunit.
Operating sequence
Theunitisswitchedonbypressing
theoperatingswitch. Itthen
operatesincontinuousfully-
automaticoperation.
Thefanextractsthemoistroom air
through the dust filter, evaporator
andthecondenserbehind.
Heatisremoved from the room air
onthecoldevaporator. Theairis
thencooledtobelowdewpoint.
Thewatervapourcontained
intheroom air is then
depositedascondensateorrime
ontheevaporatorfins.
Ifthetemperature sensor here
measures a pre-set minimum,
itactivatesatimerelay.
Iftheevaporatortemperature
stopsincreasing during this period,
thecoolingcycleswitchestohot
gasdefrosting after the timer cycle.
Thefanremains out of operation
duringthedefrosting phase.
Assoonastherime(ice) hasbeen
defrosted and the temperature
atthesensorhasincreased above
apre-set level, the unit switches
Schematic depiction of the workings of a AQUA air dehumidifier
Condensate
container
Moistroom air
dehumidified
room air
Compressor
Condenser
Evaporator
Fan
Air dehumidifIers
8
Moistroom air

Electrical connection
■ Theunitsare
operated
with220V/ 50Hz
alternatingcurrent.
■ Theelectricalconnection
ismadeusingabuilt-inmains
cablewithearthedsafetyplug
■ Extensionstotheconnection
cablemayonlybecarriedout
byauthorisedelectricians,
subjecttothelength
ofthecable, connectedload
oftheunitandtakinginto
considerationhowtheunit
isusedatitslocation
Set-up
Forthebesteconomicandsafeuse
oftheunits, thefollowingnotes
mustbefollowedinfull:
■ Theunitsmustbeset
upinanuprightandlevel
position, soastoensure
unobstructedflow
ofthecondensate
■ To ensure optimum air
circulation, the units should
besetupinthecentre
oftheroom, where possible
■ Itmustbeensured that the air
canbesuckedinonthefront
oftheunitandblownout
oftherear of the unit without
obstruction
■ Observeaminimumclearance
of50cmfrom walls at all times
■ Unitsmustneverbeset
upintheimmediatevicinity
ofheatersorothersources
ofheat
■ Aircirculation is improved
iftheunitissetupapprox. 1m
abovetheground
■ Theroom being dried
ordehumidifiedmustbeclosed
totheneighbouringatmosphere
■ Avoid having opened windows
anddoorsetc., andavoid
frequent entry to or exit from
theroom as much as possible
■ Iftheunitsare to be used
industyenvironments
orstables, appropriate care
andmaintenancemeasures
shouldbetakenaccording
totherelevant conditions
■ Theoutputoftheunitisentirely
dependentontheconditions
insidetheroom, room
temperature, relative humidity
andobservanceoftheset-up
instructions
NOTE
The electrical connection tothe
units must be made atfeed
points with residual current
devices in accordance with VDE
0100, Section 704.
When installing theunits in
extremely damp environments
such as laundry rooms, showers
etc., thecustomer must ensure
that the unit is secured with a
residual current device in
accordance with theregulations.
Wall clearance
min. 0.5m
Maintainadequateclearancefrom
heatersorothersourcesofheat.
Keep windows and doors closed!
ATTENTION
Allcableextensionsmust
onlybeusedinarolledout
orunrolledstate.
!
Air dehumidifIers
9

Starting the unit
1. Movetheoperating
switch[2] tothe"0"
(off) position.
4. Thegreen control lamp"
inoperation" willilluminate
andtheunitwilloperateinfully-
automaticdehumidificationmode.
Before commissioning the unit
oriflocalrequirements dictate,
theair-inlet grille and air-outlet
grillemustbecheckedfor
contamination.
Important points
prior to installation
■ Allextensionstotheelectrical
connectionmust
beofasufficientcablesize
andmustonlybeusedfully
rolled out or unrolled
■ Neverusethemainscable
asapullcord
■ Afterbeingswitchedon,
theunitsoperatefully-
automaticallyuntilswitched
off by the float when
thecondensatecontainerisfull
■ Thecondensatecontainer
mustbeinsertedproperly
andthesealingflapmustbe
locked
Commissioning Operation and gauge
Theunithastwomodes
Press“M“keytoselectfan
modeordehumidificationmode
6. Select
andsetthedesired air humidity.
dehumidificationmode
NOTE
Acontaminatedgrilleorfilter
mustbecleanedorreplaced
immediately.
NOTE
Inroomtemperaturesbelow
10°C andrelativehumidity
below40% , economical
useoftheunitcannolonger
beguaranteed.
NOTE
Theunitsareonly
functionalwhenoperatedwith
acorrectlyinsertedcondensate
container.
Air dehumidifIers
= TurnONorOFF
= Enterparametersettingstatus
= Check or set the parameter
= Invalid
= Set timer
Targethumidityvalue
Measuredvalue
(cannotbechanged)
Beforeconnectthedehumidifierto
powersupply,itmustbecheckedall
theconnectionsofdehumidifier are
wellconnected.Afterconnectto
power,LCDinitialization(shownas
abovefigure),andthenenter
standbystatus,shownasbelow
figure:
3. Movetheoperating
switch[2] tothe"0"
(off) position.
2. Connectunitmainsplug
toaproperly installed
andprotected mains
socket220V/ 50 Hz
5.Press tostartthedehumidifier,
LCDdisplayedasbelowfigure:
Press and toadjustthe
targethumidityvalue(Range:
1%~99%).Setthevalue,and
waitfor10seconds,systemsave
thesettingautomatically.(The
valuestopsflashing, settingis
saved.)
Timer setting：
a.TimerOFFmustbesetunder
runningstatus.Press toenter
timersettingstatus,LCDshows
asbelow:
10
TimerOFF setting

NOTE
Fan speed settings
Air dehumidifIers
11
TimerONsetting
Afterenterthetimersettingstatus,
thevalueisflashing,press and
tosettimerON/OFF,valuerange
1~24.
Setthevalue,andwaitfor15
seconds,settingissaved.
Thetimersettingwillbeeliminated
afterdisconnectedfromelectricity
orpowerfailure,inthiscase,timer
shouldberesetaftertherecovery
ofelectricity.
Turn off the dehumidifier
Press toturnoffthedehumidifier,
LCDdisplayedasbelowfigure:
Key composite function
Pressthe"△" keyand"▽" key
for3secondstoturnon/off
keyboardlock.
Startingtheunit,press to
changethefanspeed.
b.TimerONmustbesetunder
standbystatus.Press toenter
timerONsettingstatus,LCD
showsasbelow:
Parameter query and set
1
2
3
4
5
6
7
C1
C2
C3
C4
C5
C6
C7
Heatingfunction
Condensation(coil)
temperature
Humiditysensordetects
deviation
Pressafteropeningdelay
detectiontime
Enterthedefrostpoint
temperature
Exitdefrostpointtemperature
Maximumdefrosttime
Parameter
Description Default
values
Code Meaning
Para-
meter
No.
0~1 1
-20~99℃
—5% ～ 5%0%
20～90min 40
－10～10℃－1
0℃ ～ 15℃8
2～12min 8
Pressthe 3secondstoentertheparameterquerysetmenu
parametersasfollows:
Pressthe ,theparametervaluesintodisplayC1andC3
whenflashing▲ and▼ keystosetparametervalues.Press keyto
exitthesettings.
Fault protection code
1
2
3
4
5
6
7
Roomtemperaturesensorfailure
Coiltemperaturesensorfailure
Humiditysensorfailure
High-pressureprotection
Flowswitchfailure
Phasesequencefailure
Screen display
Protection / failure
No.
E1
E2
E3
E 4
E5
E6
E8
Pressthe 3secondstoentertheparameterquerysetmenu
parametersasfollows:
Low-pressureprotection
8Communicationfailure EE

Unit operation with hose
connection
Thecondensatecontainerhas
beenprovided with a connection
port ( 20mm)
Afterremoving the condensate
container, a water hose (not
provided) may be connected
tothisconnectionport.
ø.
Condensate
Dependingontheairtemperature
andtherelative humidity,
condensedwaterwilldripinto
thecondensatetrapandinto
thecondensatecontainerbelow
eithercontinuouslyoronlyduring
thedefrosting phases.
Unitrearsideoftheleast
significantbit,acondensatedrain
interface,youneedtobe
connectedtothedrainstimely
condensatedischarge.
Thedrainsrecommendrubber
hose,drainagetodrain
NOTE
Bewareofdrippingcondensate.
Afterswitchingoff the units,
theevaporatormaycontinue
todefrostundertheinfluence
oftheambienttemperature.
Air dehumidifIers
12
5. Drainthecondensateinto
alower-lying drain.
To operate the units,
thecondensatecontainermust
alwaysbeinsertedcorrectly
andthesealingflapmustalways
belocked.
NOTE
Ensurethatthedrainage
hoseisplacedatanangle
tothedraintoallow
thecondensatetodrainfrom
thecondensatecontainer
withouthindrance.
Thefollowingproceduremust
befollowedwhenconnecting
awaterhose:
1. Openthefrontsealingflap
andremove the sealing plug.
2. Insertthecustomerprovided
drainage hose intothe
connectionport
(secure andsealwithaclamp
ifnecessary).
3. Insertthecondensate
containerbackandroute
thedrainagehosethrough
theslotontherightnext
tothecondensatecontainer
through the base of the unit.
4. Lockthefront sealing flap
inplace.
Movetheoperatingswitch
tothe"0" (off) position.
Iftheunitsare to be left unused
forextendedperiods, disconnect
from themains.
Decommissioning
ATTENTION
Inordertopreventdamage
tothecompressor, wait for
approx. 2to3minutesbefore
switchingtheunitback
onagain.
!

Air dehumidifIers
13
Emptydrainthewaterinside,
andmaintainamainsunimpeded.
Whenstoringtheunit, coverwith
aplasticsheet/foilifnecessary
andstore in an upright position
inasheltered and dry location.
NOTE
Bewareofdrippingcondensate.
Afterswitchingoff the units,
theevaporatormaycontinue
todefrostundertheinfluence
oftheambienttemperature.
Foreasytransportation, theunits
are equipped with 4 large
wheelsandaneasy-to-dismantle
transportationhandle.
Whentransportingtheunits,
observethefollowing:
1. Before each change of location,
switchoff the unit and remove
themainsplugfrom the mains
socket.
2. Emptythecondensatedrain.
3. Ifmoisture remains
ontheevaporatororwater
remains in the condensate
container, the units must only
betransportedinanupright
position.
Transportation
NOTE
Bewareofdrippingcondensate.
Afterswitchingoff the units,
theevaporatormaycontinue
todefrostundertheinfluence
oftheambienttemperature.
ATTENTION
Themainscablemustnever
beusedasapullcordorfixing
device.
!
■ Observetheregular care
andmaintenanceintervals
■ Inaccordance with theoperating
conditions, theunitsmust,
ifnecessary, be checked at least
yearlybyaspecialisttoensure
thattheyare inaconditionthat
issafetouse
Care and maintenance
Allmovingpartshavealow-
maintenancepermanentcoat
oflubricant. Therefrigerant system
isdesignedasahermeticallysealed
systemandmayonlyberepaired
byaspecialist.
NOTE
Regularcareandmaintenance
isfundamentaltoalong
servicelifeandfault-free
operationoftheunit.
ATTENTION
Beforeundertakingany
workontheunits, themains
plugmustberemovedfrom
themainssocket.
!
■ Keeptheunitsfree of dust
andotherdebris
■ Onlycleantheunitswithadry
ormoistenedcloth
■ Neversubjecttodirect jets
ofwater
such as a high-pressure
cleaner etc.
■ Neveruseabrasiveorsolvent-
basedcleaners
■ Use only suitable cleaners for
heavy contamination
Cleaningthedustfilter
Slidetheprotective grille upwards
slightly, then pull forwards and
remove downwards.
Thenremove the dust filter which
hasnowbeenreleased.
Lightcontaminationofthedust
filtermayberemedied with careful
blowingorsuction.
Heaviercontaminationmay
beremedied by rinsing the filter
inalukewarm(max40°C) soap
solution.
Finally, always ensure to rinse
thefiltercarefully with clear water
andallowtodry.
Before refitting the dust filter,
ensure that its fully dry and that
nodamagehasbeensustained.
Theunitsmayonlybeoperated
withthedustfilterinplace.
NOTE
Heavilycontaminateddust
filtersmustbereplacedwith
newparts.
Onlyoriginalreplacement
partsmaybeused
ATTENTION
Checktheinletandoutlet
grilleandthedustfilterfor
contaminationonaregularbasis.
!

Cleaningtheunits
Theunithousingmustbeopened
toallowtheinsideoftheunit
tobecleanedandtoprovide
accesstoelectricalcomponents.
1. Removethemainsplugfrom
themainssocket.
NOTE
Installationworkmayonly
becarriedoutbyauthorised
qualifiedtechnicians.
byauthorisedspecialists.
Air dehumidifIers
14
2. Cleanthecondenserfins
byblowing, withsuction
orusingasmoothbrush.
3. Exercise extreme caution when
cleaningthecondenser. The fine
aluminiumfinsbendveryeasily.
4. Neversubjecttosharpjets
ofwater(high-pressure cleaners).
5. Cleantheevaporatorfins, for
examplewithalukewarmsoap
solution(orsimilar).
6. Rinsewithcleanwater
toremove any remaining soap.
7. Cleantheinternalsurfaces
oftheentire unit as well
asthefanblade.
8. Oncecleaninghasbeen
completed, theunitshould
bedriedwithcare.
Take particular care with
electricalcomponents!
9. Re-installalldismantled
componentsinreverse order.
10. Carryoutaunitfunctioncheck
andelectricalsafetycheck.
ATTENTION
Anelectricalsafetycheckmust
becarriedoutinaccordance
withVDE0701afteranywork
ontheunits.
!
Troubleshooting
Theunitsare manufactured
usingstate-of-the-artproduction
methodsandtestedseveraltimes
toverifytheircorrect function.
However, if a functional fault
shouldoccur, the unit should first
becheckedinaccordance with
thefollowinglist:
The unit does not start
■ Checkthesetting
oftheoperatingswitch.
Thegreen control lamp should
illuminate
■ Check mains connection
220V/1~/50 Hz
■ Checkmainsplugandcablefor
damage
■ Checkthecustomer-provided
mainsprotection.
Minimumprotection 10A
■ Checkthelevelandcorrect
positioningofthecondensate
container.
Thefront sealing flap must
befullyclosedandlocked
■ Checkthefunction
ofthemicroswitch
■ Checkthesetting
ofthehumidityswitch
(accessories).
Thepre-set value must be
lowerthantherelative humidity
intheroom.
■ Checkthehumidityswitch
adapterfordamageandcorrect
positioning
The unit runs but does not
form any condensate
■ Checktheroom temperature.
Theoperatingrangeoftheunit
isbetween3°Cand32°C
■ Checkthehumidityoftheair,
min. 40% RHrequired
■ Checkthe setting ofthehumidity
switch, setalowerhumidity
valueifnecessary
■ Checkthedustfilter
forcontamination andclean
orreplace if necessary
■ Checktheevaporator
andcondenserfinsfor
contaminationandclean
ifnecessary
■ Checktheevaporatorforice
orrimeformationIficehas
formed, checkthefunctionality
oftheautomaticdefrost
andthetemperature sensor
■ Checkwhetherornot
theevaporatortemperature
isbelowroom temperature
Ifthisisnotthecase, check
theautomaticdefrost or room
temperature
The unit does not start
■ Checkwhetherornot
thecondensatecontainer
isinsertedcorrectly and that
thefront sealing flap is locked
■ Checkwhetherornotmains
powerisavailable
NOTE
Iftheunitfailstofunction
correctlyafterthecheckshave
beencarriedout, anauthorised
specialistmustbeinformed .
ATTENTION
Work on the refrigerant
systemandontheelectrical
equipmentmustonly
beconductedbyaspecially-
authorisedspecialist.
!

Electrical connection diagram
We reserve the right to modify the dimensions and constructional design as part of the ongoing technical development process.
Air dehumidifIers
15
OUT 1
COMP CN19 LED
4-WAY
FM/H
AC-N
CN1 CN2
SW1
220V/AC 12V/AC
OUT3
OUT4
OUT5
FM
CM Y/G
WIRE
CONTROLLER
HIGH PRESSURE
LOW PRESSURE
TRANSFORMER
UVW
AMBIENT TEMPERATURE
COIL TEMPERATURE
OBLIGATE
OBLIGATE
YW
BK
RD
HUMIDITY
TEMP
FM/L
K1
N
ABC
phase relay
380V / 3 Phase / 50Hz
OUT 1
COMP
CN19 LED
4-WAY
FM/H
AC-N
CN1 CN2
SW1
220V/AC 12V/AC
OUT3
OUT4
OUT5
FM
CM
Y/G
WIRE
CONTROLLER
HIGH PRESSURE
LOW PRESSURE
TRANSFORMER
N
L
RSC
AMBIENT TEMPERATURE
COIL TEMPERATURE
OBLIGATE
OBLIGATE
YW
BK
RD
HUMIDITY
TEMP
FM/L
switch2
OUT 2
OUT 2

Maintenance protocol ✍
1. Date: ..............
..............................
Signature:
2. Date: ..............
..............................
Signature:
3. Date: ..............
..............................
Signature:
4. Date: ..............
..............................
Signature:
5. Date: ..............
..............................
Signature:
6. Date: ..............
..............................
Signature:
7. Date: ..............
..............................
Signature:
8. Date: ..............
..............................
Signature:
9. Date: ..............
..............................
Signature:
10. Date: ............
..............................
Signature:
11. Date: ............
..............................
Signature:
12. Date: ............
..............................
Signature:
13. Date: ............
..............................
Signature:
14. Date: ............
..............................
Signature:
15. Date: ............
..............................
Signature:
16. Date: ............
..............................
Signature:
17. Date: ............
..............................
Signature:
18. Date: ............
..............................
Signature:
19. Date: ............
..............................
Signature:
20. Date: ............
..............................
Signature:
Comments: ...................................................................................................................................................
.....................................................................................................................................................................
.....................................................................................................................................................................
Unit type: .................................. Unit number: ...................................
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Unitcleaned- outside-
Unitcleaned- inside-
Fanbladecleaned
Fanhousingcleaned
Condensercleaned
Vaporiser cleaned
Fanfunctionchecked
Air-inlet grid with flter cleaned
Unitcheckedfordamage
Safetydeviceschecked
Allfasteningscrews checked
Electricalsafetycheck
Test run
Unittobemaintainedonlybyauthorisedspecialistsinaccordance with the statutory regulations.
Air dehumidifIers
16

Series
Operatingrange, temperature °C
Operatingrange, humidity % RH
Dehumidifcationcapacitymax.l/h
at30°C/80% RH l/h
Ventilation capacity max.m3/h
CondensatedrainSize mm
Compressor/condenser Configuration
Refrigerant Freon
Refrigerantquantity g
Powersupply V/Hz
Max. ratedpowerconsumption A
Max. powerconsumption kW
at20°C/70% RH kW
Customer-provided electrical
protection A
Defrosting Automatic
Soundpressure levelL pA 1m 1)dB(A)
Depth mm
Width mm
Height mm
Heightincl. Transportation mm
Weight kg
DH-15
3-32
40-100
15.2
15.0
4500
Φ20
Scroll
R22
2400
380V/3~/50
8.1
2.3
6.2
40
Hotgas
53
770
770
995
1090
165
1) Noiselevelmeasurement DIN 45635 - 13 - KL 3
2) Dimensionsin( ) = withouttransportationbracket
We reserve the right to modify the dimensions and constructional design as part of the ongoing technical development process.
Technical data
Air dehumidifIers
17
DH-6
3-32
40-100
6.2
6.0
2800
Φ20
Rotary
R22
1400
220~240/1~/50
10.5
2.3
1.7
16
Hotgas
49
490
490
950
1040
55
Φ20
Rotary
R22
DH-2
3-32
40-100
2.2
2.0
400
450
220~240/1~/50
3,4
0,76
0,53
16
Hotgas
45
280
960
520
600
46
bracket
DH-4
3-32
40-100
4.1
3.9
1000
Φ20
Rotary
R22
900
220~240/1~/50
6.9
1.53
1.1
16
Hotgas
49
490
490
950
1040
50