Immergas Magis M 4 EH3 Technical manual

Instructions and recommendations
*1.047741ENG*
*1.047741ENG*
IE MAGIS
M468 EH3
M121416TEH9
Block heatpumpswith integrated
backup heater
Use and Installation

2
INDEX
Dear Customer..........................................................................................................................................................................................................4
List ofabbreviations used.........................................................................................................................................................................................5
General Recommendations.....................................................................................................................................................................................6
Safetysymbolsused..................................................................................................................................................................................................7
Personal protectiveequipment ...............................................................................................................................................................................7
Introduction..............................................................................................................................................................................................................8
1 General safetywarnings. ......................................................................................................................................................... 10
2 General Introduction. ............................................................................................................................................................. 13
3 Accessories. ............................................................................................................................................................................. 15
3.1 Accessoriessupplied with the units 4-16 kw. .............................................................................................................................................15
4 Priortoinstallation. ................................................................................................................................................................ 16
5 Importantinformationontherefrigerant. ............................................................................................................................. 17
6 Installationsite........................................................................................................................................................................ 18
6.1 Selectionof acold weather location.............................................................................................................................................................20
6.2 Selection of ahot weather location. .............................................................................................................................................................20
7 Installation precautions. ......................................................................................................................................................... 21
7.1 Dimensions. ..................................................................................................................................................................................................21
7.2 Installation requirements............................................................................................................................................................................22
7.3 Positionofdrain hole....................................................................................................................................................................................22
7.4 Clearance requirementsformaintenance. ................................................................................................................................................23
7.5 Control Panelinstallationmanual. ............................................................................................................................................................25
8 Typical applicationexamples. ................................................................................................................................................. 30
8.1 UNITS 4-16 KW:Application1...................................................................................................................................................................30
8.2 UNITS 4-16 KW:Application2...................................................................................................................................................................32
8.3 UNITS 4-16KW:Cascade System...............................................................................................................................................................36
9 Overviewoftheunit................................................................................................................................................................. 38
9.1 Disassembling the unit. ...............................................................................................................................................................................38
9.2 Maincomponents.........................................................................................................................................................................................39
9.3 Electroniccontrolbox................................................................................................................................................................................. 40
9.4 Waterpipes. ...................................................................................................................................................................................................54
9.5 Fillingwithwater. .........................................................................................................................................................................................58
9.6 Waterpipeinsulation. ..................................................................................................................................................................................58
9.7 Wiringoneld. .............................................................................................................................................................................................59
10 Startupandconguration....................................................................................................................................................... 81
10.1 Overview ofDIPswitch settings. ................................................................................................................................................................81
10.2 Initial start-upatlowoutdoortemperatures..............................................................................................................................................82
10.3 Checkspriorto operation. ...........................................................................................................................................................................82
10.4 ecirculationpump. ..................................................................................................................................................................................83
10.5 On-eldsettings............................................................................................................................................................................................84
11 Test modeandnalchecks..................................................................................................................................................... 106
11.1 Final checks. ................................................................................................................................................................................................106
11.2 Test operation(manual).............................................................................................................................................................................106
12 Maintenanceandservice. ...................................................................................................................................................... 107
13 Troubleshooting.................................................................................................................................................................... 108

3
13.1 Generalguidelines......................................................................................................................................................................................108
13.2 General symptoms. ....................................................................................................................................................................................108
13.3 Operationparameters................................................................................................................................................................................111
13.4 Errorcodes. .................................................................................................................................................................................................112
14 Technicalspecications. ....................................................................................................................................................... 120
14.1 General. ...................................................................................................................................................................................................... 120
14.2 Electricaltechnicalspecications. .......................................................................................................................................................... 120
15 Informationonmaintenance. ............................................................................................................................................... 121
15.1 Attachments............................................................................................................................................................................................... 124

4
Dear Customer
Congratulations for having chosen a top-qualityImmergas product, able toassurewell-beingand safetyfor along period oftime. As anIm-
mergas customeryoucanalso counton a QualiedAuthorisedAer-Sales TechnicalAssistanceCentre,prepared andupdated to guarantee
constant eciency of your appliance. Read the following pages carefully: you will be able to draw useful tips on the proper use of the device,
compliance withwhich will conrmyour satisfaction withthe Immergasproduct.
For assistance and routine maintenance, contact Authorised Technical Service Centres: they have original spare parts and are specically
trained directlybythe manufacturer.
e company IMMERGAS S.p.A., with registered oce in via Cisa Ligure 95 42041 Brescello (RE), declares that the design, manufac-
turing and aer-salesassistanceprocessescomplywiththerequirements of standardUNI ENISO 9001:2015.
For further details on the product CE marking, request a copy of the Declaration of Conformity from the manufacturer, specifying the
appliance modelandthelanguageof the country.
e manufacturer declines all liability due to printing or transcription errors, reserving the right to make any modications to its tech-
nicalandcommercialdocumentswithoutforewarning.

5
LIST OF ABBREVIATIONS USED
efollowing isthe key of the abbreviations used in this document.
ACS Domestichotwater
CO2Carbon dioxide
CVC Fan coil
DHW Domestichotwater
etc. Etc.
FCU Fan coil
Fig. Figure
FHL Floorheating circuit
IBH Backup heater
MFA Maximum fuse amp.
MOP Maximum overcurrentprotection
Max. Maximum
Min. Minimum
Nom. Rated
Par. Paragraph
RAD Radiator
Ta Roomtemperature
TBH DHWstoragetank backupheater

6
GENERALRECOMMENDATIONS
• einstructionbookletis an integral and essentialpart of the product and must begiventothenew user in the caseoftransfer
orsuccessionofownership.
• It must be stored with care and consulted carefully, as all of the warnings provide important safety indications for installa-
tion, use andmaintenancestages.
• In compliance with the legislation in force, the systems must be designed by qualied professionals, within the dimensional
limits established by the Law. Installation and maintenance must be performed in compliance with the regulations in force,
according to the manufacturer'sinstructionsandbyprofessionally qualied sta,meaning sta with specictechnical skills
in the plantsector,asprovided forbyLaw.
• Improperinstallation or assemblyoftheImmergas device and/or components, accessories, kits and devices can cause unex-
pected problemsforpeople, animals and objects.Read theinstructionsprovided with the product carefullytoensureproper
installation.
• isinstructionsmanual provides technicalinformationforinstallingImmergasproducts.Asfortheotherissues related to
the installation of products (e.g. safety at the workplace, environmental protection, accident prevention), it is necessary to
complywith the provisionsofthe standards in forceandthe principlesofgood practice.
• AllImmergasproductsareprotectedwithsuitabletransportpackaging.
• ematerialmust bestored in a dryplace protected fromthe weather.
• Maintenance must be carried out by skilled technical sta. For example, the Authorised Service Centre that represents a
guarantee of qualicationsandprofessionalism.
• e appliance must only be destined for the use for which it has been expressly declared. Any other use will be considered
improperandthereforepotentially dangerous.
• In the eventofmalfunctions, faults orincorrect operation,turn the applianceoandcontactanauthorisedcompany(e.g.the
Authorised Technical Assistance Centre, which has specically trained sta and original spare parts). Do not attempt to
modifyorrepairthe appliancealone.
- For further information regarding legislative and statutory provisions relative to the installation of heat pumps, consult the
Immergas siteatthefollowing address:www.immergas.com

7
SAFETY SYMBOLSUSED
GENERICHAZARD
Strictly follow all of the indications next to the pictogram. Failure to follow the indications can generate hazard situations
resulting in possibleharm tothehealth ofthe operatorand user in general,and/orproperty damage.
ELECTRICALHAZARD
Strictlyfollowall of the indicationsnexttothe pictogram.e symbolindicates the appliance’s electrical componentsor,in
thismanual, identiesactionsthatcancausean electrical hazard.
WARNINGFORINSTALLER
Read the instructionbooklet carefullybeforeinstalling the product.
WARNINGS
Strictly follow all of the indications next to the pictogram. Failure to follow the indications can generate hazard situations
resulting in possibleminorinjuriesto the health ofboththeoperatorand the user in general,and/orslightmaterialdamage.
ATTENTION
Read and understand the instructions of the appliance before carrying out any operation, carefully following the instruc-
tions given. Failureto observetheinstructions mayresultinmalfunctionoftheunit.
FLAMMABLEMATERIALWARNING
is symbol indicates that the appliance in question used a ammable refrigerant. ere is a risk of re if the refrigerant
leaked orwas exposed toanexternal ignitionsource.
INFORMATION
Indicates useful tipsoradditional information.
EARTHTERMINAL CONNECTION
esymbolidenties the appliance’s earth terminalconnectionpoint.
DISPOSALWARNING
e user must not dispose of the appliance at the end of its service life as municipal waste, but send it to appropriate
collectioncentres.
PERSONALPROTECTIVEEQUIPMENT
SAFETYGLOVES
EYE PROTECTION
SAFETY FOOTWEAR

8
INTRODUCTION
MagisM 4/6 EH3
1
MagisM 8EH3
MagisM 12/14/16T EH9
2
Internalarrangement: MagisM12-14-16T EH9
4
3
2
1
3
Key (Fig.3):
1 - Electric control system
2 - Terminal board
3 - Hydraulic system
4 - Refrigerant system
A
B
4
Key (Fig.4):
A - Magis M4/6EH3
B - MagisM8EH3
Magis M12/14/16TEH9
A
5
Key (Fig. 5):
A - Pleaseremove the protectivepanelaerinstallation
MagisM12/14/16 T EH9
A
6
Key (Fig.6):
A - Eliminate thetransportmount (Magis M12/14/16T EH9)

9
eimages in this manual are only used as a reference - refertotheactualproduct.
• emaximum length ofthewiringthat guarantees communicationbetween the heatpumpandthe controlpanelis 50m.
• epowercables and communicationwires arelaidseparatelyandcannotbe placedinthesameduct. Otherwise therewould
be electromagneticinterference. epowercables and wires forcommunicationmust notcomeintocontact with therefrig-
erantpipewhichathightemperaturescoulddamagethe wires.
• ecommunicationwires mustbe inshielded lines, including the linethatgoesfromtheheat pumptothe controlpanel.

10
1 GENERALSAFETYWARNINGS.
eprecautions listedbelow are divided intothefollowingtypes.ey are ratherimportantand thereforemustbefollowedcarefully.
MeaningofDANGER, WARNING,CAUTIONand NOTEsymbols.
• Improperinstallationofthe appliances oraccessories can cause electric shocks, short-circuits, leaks, re orotherdamage to
the equipment. Make sure to only use accessories made by the supplier, which are specically designed for the appliance and
make sure that installationis performedbya skilledprofessional.
• All of the tasks described in this manual must be carried out by an authorised technician. During installation of the unit or
when carrying out maintenance, make sure to wear adequate personal protective equipment, such as safety gloves and gog-
gles.
• Contactyour dealerforanytypeofserviceintervention.
Maintenancemustonlybecarriedoutaccordingtotheinstructionsgivenbythemanufactur-
er ofthe appliance.
Maintenanceandrepairsthatrequiretheassistanceofotherqualiedpersonnelmustbe car-
riedoutunderthesupervisionofapersoncapableofusingammablerefrigerants.
Explanationofthesymbolsdisplayedontheunit.
WA R NING is symbol indicatesthattheappliance inquestion used a ammable refrigerant.ereis a risk of
re if the refrigerant leaked or was exposedtoan external ignition source.
CAUTION issymbolindicates to carefully readtheusermanual.
CAUTION issymbolindicates thatservicepersonnel must handle the appliance while referring to the
installation manual
CAUTION issymbolindicates thatservicepersonnel must handle the appliance while referring to the
installation manual
CAUTION issymbolindicates thatthereis informationavailable suchas instructions foruseorinstalla-
tioninstructions.
• Pleaseswitchothepowerswitchbeforetouchingthecomponentsoftheelectricterminals.
• Whentheservicepanelsareremoved,itiseasytomistakenlytouchlivecomponents.
• Nevertouchtheunitduringinstallationormaintenancewiththeservicepanelremoved.
• Do not touch the water pipes during and immediately aer operation as they could be hot
andburnyourhands.Toavoidinjury,allowthepipestoreturntonormaltemperatureorput
on protective gloves.
• Do not touch any switch with wet ngers. Touching a switch with wet ngers could cause
electric shocks.
• Switchotheunitbeforetouchingelectriccomponents.

11
• Tearupplasticpackaging bags andthrowthemawayso thatchildrendonotplay with them.
Childrencan riskdyingbysuocationiftheyplaywithplasticbags.
• Safely dispose of packaging materials such as nails or other metal or wooden parts which
couldcauseinjury.
• Ask your dealer or qualied personnel to perform the installation jobs in compliance with
this manual. Do not install the unit on your own. Improper installation could cause water
leaks,electricshocksorre.
• Make sure to use only the accessories and components specied for the installation jobs.
Failuretousethespeciedcomponentscouldcausewaterleaks,electricshocks,reorcause
theunittofalloitsstand.
• Install the unit on a foundation capable of bearing its weight. e appliance could fall or
causeinjuryifnotsucientlystable.
• Perform the specied installation jobs taking into account strong winds, hurricanes or
earthquakes.Improperinstallationcouldcauseaccidentsduetotheequipmentfalling.
• Make sure that all the electrical jobs are carried out by qualied personnel in compliance
with local laws and regulations and with this manual, using a separate circuit. An insu-
cient capacity of the power circuit or an incorrect electrical system can cause electrical
shocksandre.
• Make sure to install an earth fault circuit switch in compliance with local laws and regula-
tions.Failuretoinstallanearthfaultcircuitswitchcancauseelectricalshocksandre.
• Check that all the cables are rm. Use the specied wires and check that the connections of
the terminals or wires are protected against water and other outside adverse forces. An in-
completeconnectionorfasteningcancauseare.
• When wiring the power supply, position the wires so that the front panel can be xed safely.
If the front panel is not in place, there could be overheating of terminals, electric shocks or
re.
• Aerhavingcompletedinstallation,makesuretherearenorefrigerantleaks.
• Nevertouchleakingrefrigerantasitcouldcausefrostbite.Donottouchtherefrigerantpipes
during and immediately aer operation as the refrigerant inside could be hot or cold, de-
pending on the conditions of the refrigerant owing through the pipes, the compressor or
the other parts of the refrigerant cycle. Touching the refrigerant pipes could cause burns or
frostbite. To avoid injury, allow the pipes to return to normal temperature or, if you need to
touchthem,putonprotectivegloves.
• Do not touch the internal parts (pump, etc.) during and immediately aer operation. Con-
tact with internal parts can cause burns. To avoid injury, allow the internal components to
return to normal temperature; otherwise, if you absolutely need to touch them, put on pro-
tective gloves.
• Placethe unitontheground.
• eearthing resistancemust complywith local lawsandregulations.
• Donotconnect theearthcableto gasor waterpipelines, tolightning rods or theearth cables of the telephone.
• Incompleteearthing cancause electricshocks.
- Gaspipes: gasleaks could cause are orexplosion.
- Waterpipes: rigidrubber hosesdo not guaranteeearthing.
- Lightningrods:ortelephoneearthing wires: the electrical thresholdcouldincreaseanomalously if struck bylightning.
• Install the powercableat least 1m away from TVsand radiosto avoidinterferenceornoise.(Dependingon the radiowaves,a
distance of1m mightnotbeenoughto eliminatenoise).
• Do not use pressurised water without a large diuser. Do not use high-pressure cleaners for Cu/Cu and Cu/Al air coils. Con-
centratedand/orrotating waterjets are strictly prohibited.Neveruseuidwith atemperatureabove45°Ctoclean the airheat
exchangers. e device must be installed in compliance with the national wiring regulations. If the power cable is damaged,
itmustbereplacedbythemanufacturer, byaserviceagent or by justasqualied persons to avoiddanger.

12
• Donotinstallthe unitinthefollowingplaces:
- Where there is mineral oil mist, oil spray or vapours. e plastic components could deteriorate and cause detachment or
leakageof water.
- Wherecorrosivegases areproduced (suchassulphurousacidgas).Wherethecorrosionofcopperpipes or welded partscan
leadto refrigerantleaks.
- Where there is machinery that emits electromagnetic waves. e electromagnetic waves can disturb the control system
andcausetheappliances to malfunction.
- Whereammablegasescouldescape,wherethecarbonbreorammabledust issuspendedintheairorwhereammable
volatilesubstances are handled suchas paintthinnersorpetrol. ese types ofgas could cause are.
- Wheretheair contains highlevels ofsalt, like near the ocean.
- Wherethereis highvoltageisolation,likeinfactories.
- In vehicles or ships.
- Wherethereareacid vapours oralkalines.
• is appliance can be used by children at least 8 years old and by persons with reduced physical, sensory or mental capacities
or with little experience and knowledge as long as they are supervised or receive instructions on how to use the appliance
safely and understand its risks. Children should not play with the appliance. Cleaning and maintenance of the utility must
notbecarried outby childrenwithoutsupervision.
• Make sure that childrendonotusethe product as a toy.
• If thepowercable isdamaged,itmust bereplacedbythemanufacturer, byaserviceagent or by justasqualied persons.
• DISPOSAL: Do not dispose of this product as unsorted city waste. is waste must be collected separately for special treat-
ment. Do not dispose of electrical equipment as city waste; make use of separate collection facilities. Contact your local gov-
ernmentforinformationonavailablecollectionfacilities. Iftheelectrical equipmentisdisposedofinlandlls,thehazardous
substances caninltrate intogroundwaterandenterthe foodchain,thus damaging yourhealth and well-being.
• Check the safetyofthe area and installation(walls, oors, etc.)withoutconcealed dangerssuch aswater, electricityandgas.
• Before installation, check whether the power supply of the utility meets the electrical installation requirements of the unit
(including reliable earthing, dispersion and the diameter of the electrical load cable, etc.). If the electrical installation re-
quirementsoftheproduct arenotmet,the product cannotbeinstalleduntil this isrectied.
• Whenseveral units are installed in acentralisedmanner, please conrm balancingof the three-phasepower load anddonot
allowmultipleunitstobe assembledinthesamethree-phase powersupply phase.
• einstalledproduct mustbe rmlyfastened.Usereinforcement measures wherenecessary.
• Toguarantee the safetyofthe product, please restart the unitatleast once every 3 months sothat itcan performa self-inspec-
tion.
• Information on uorinated gases:
- is unit contains uorinated gases. For specic information on the type and amount of gas, see the relative label on the
unit. Nationalstandardsongasmust becomplied with.
- Installation,service, maintenanceandrepairoperationsonthis unitmustbe carried outbyacertied technician.
- eproduct must beuninstalled and recycled byacertied technician.
- If the systemis ttedwith a leak detectionsystem, it mustbe checkedat least every 12 months. When aleak check iscarried
outontheunit, youare warmly recommended to correctlylog all thecontrols.

13
2 GENERAL INTRODUCTION.
- Magis M4-6-8 EH3 and Magis M12-14-16 EH9 blockheat pumpsareused bothforheating and cooling applications and for domestic
hot water tanks. ey can be coupled with fan coils, oor heating applications, low-temperature high-eciency radiators, domestic
hotwatertanks andsolar kits.
- eunit issupplied with acontrolpanel.
- eunit’sbuilt-in backup heatercanincreasetheheatingcapacityincase ofcoldexternal temperatures. e backup heateralso serves
as abackupintheevent of a malfunctionand as protectionagainstfreezingfortheexternalwaterpipesduringwinter.
• emaximum length ofthewiringthat guarantees communicationbetween the heatpumpandthe controlpanelis 50m.
• epowercables and communicationwires arelaidseparatelyandcannotbe placedinthesameduct. Otherwise therewould
be electromagneticinterference. epowercables and wires forcommunicationmust notcomeintocontact with therefrig-
erantpipewhichathightemperaturescoulddamagethe wires.
• ecommunicationwires mustbe inshielded lines, including the linethatgoesfromtheheat pumptothe controlpanel.
Models 4-16
③
②①
A B
C
7
Key (Fig.7):
1 - Heat pumpcapacity.
2 - Required heatingcapacity (depending onsite).
3 - Additional heating capacitysuppliedby a backupheater.
A - Tbivalent
B - Outside temperature
C - Capacity/load
Domestichotwatertank(optional)
Adomestichotwater storage tankcan beconnectedto the unit(with or withouttankbooster heater(TBH).
1
4
5
6
2
3
8
Key (Fig. 8):
1 - Tank
2 - Temperature probe (T5)
3 - Coil
4 - Outlet
5 - Tank booster heater (TBH)
6 - Inlet
eDHW tankboosterheater (TBH)mustbe installed belowthe temperatureprobe(T5).
eDHW storagetank coil mustbe installed belowthe temperatureprobe.
Roomthermostat(optional)
e room thermostat can be connected to the unit (the room thermostat must be far away from the heating source when the installation
place ischosen).

14
Solarcontrolunit(optional)
A solar control unit can be connected to the unit for the production of domestic hot water with thermal solar system, with relative coil
insidethestoragetank.
e unit has a freezing prevention function using the heat pump or the backup heater to keep the water system safe from freezing in all
conditions.Since a powerfailurecouldoccur while the unitis unattended,it isrecommendedto empty thesystem (ifthere isno glycol in
thewater)(see paragraph "Anti-freezeprotectionof watercircuit." in chapter9.4).
Unitoperating ranges4-16kW.
COOLING MODE
X1
X2
A
9
HEATINGMODE
X1
X2 B A CD
10
DOMESTIC HOT
WATER HEATING MODE
X1
X2 B A CD
11
Key (Fig. 9-10 - 11):
X1 - Waterowtemperature(°C)
X2 - External temperature(°C)
A - Operating range by means of heat pumps with possible re-
strictionandprotection.
B - If the IBH setting is active, only IBH switches on.If the IBH
setting is not active, only the heat pump switches on; there
could be cases of restriction and protection while the heat
pumpis running.
C - e heat pumpswitches o, onlyIBHswitches on (ifpresent).
D - Maximuminletwatertemperature.

15
3 ACCESSORIES.
3.1 ACCESSORIESSUPPLIED WITHTHEUNITS416KW.
Accessories suppliedwith theunits
Name Shape Quantity Name Shape Quantity
Useandmaintenancemanual 1
Temperatureprobe fordomestic hot water
(T5) or zone2(Tw2)orthermostat
controlledstoragetank (Tbt1)
1
ControlPanelmanual 1Drain pipe 1
Technicaldata manual 1Energy label 1
Y-lter 1Customerwiringclamps
2
3
Controlpanel 1Networkadapter** 1
SG (SMARTGRID)jumper 150kΩresistanceforremoteDHW demand 1
Accessories available fromthesupplier
Name Shape Quantity Name Shape Quantity
Inertialstoragetank temperatureprobe
(Tbt1)* 1Extensioncable for Tw2 1
ExtensioncableforTbt1 1Solartemperature probe (Tsolar) 1
Zone 2 ow temperatureprobe(Tw2) 1Extensioncable for Tsolar 1
Probes and 10 m long extensions for Tbt1, Tw2, Tsolar can be shared; if these functions are necessary simultaneously, also order these
probesandthe extensioncable.
*= Ifthe systemis installed in parallel,Tbt1must beconnectedandinstalledinthe inertialstoragetank.
** = When the units are connected in parallel, for example when communication between the units is unstable (like a Hd failure code),
adda correspondingnetworkcablebetween portsH1andH2tothe terminalofthe communicationsystem.
e sensorsTbt1, T5 and the extension cable can be shared; the sensors Tw2, Tsolare and the extension wire can be shared. If these func-
tions areneededat the sametime,customise these sensors plus the extension.

16
4 PRIORTOINSTALLATION.
Priortoinstallation.
Make sure to conrm the modelnameandserial numberof the unit.
Handling.
Due to the relatively largesizeandheavyweightoftheunit,itmust only behandledwith liingequipmentwithharnessing. e harness-
es canbe ttedinthesleeves on thebaseframe, specicallymade forthis purpose.
• Toavoidinjuries, do nottouch the air inletor the aluminium ns oftheunit.
• Donotusethe gripsofthe fan grilles soasnottodamage them.
• eunit isvery heavy! Donotallowittofall due to an incorrect inclinationduringhandling.
Models 4-16 kW
A
12
Key (Fig. 12):
A - Angular
e hook and the centre of gravity of the unit must be on a vertical
lineto avoidanimproperinclination.
Havethe liing cordpass asrepresentedinthe image(Fig. Models
4-16 kW12):
Positionofthecentreofgravityoftheunits4-6kWand8-16kW.
Models 4-6 kW
13
Models 8-16 kW
14
Model A B C
Single phase 4-6 kW 295mm 540mm 190 mm
Single phase 8kW 330 mm 580 mm 280 mm
ree-phase 12-14-16 kW 200 mm 605mm 245mm

17
5 IMPORTANTINFORMATIONONTHE REFRIGERANT.
isproduct contains uorinated gas whosereleaseintotheair isprohibited.
Typeofrefrigerant:R32;VolumeofGWP:675.
GWP =GlobalWarning Potential
Model Volumeofrefrigerantloadedinthe unitatthe factory
Refrigerant (kg) Tonnes ofCO2 equivalent
4 kW 1,40 0,95
6 kW 1,40 0,95
8 kW 1,40 0,95
12 kW 1,75 1,18
14 kW 1,75 1,18
16 kW 1,75 1,18
• isunit isa hermetically sealed appliancethat contains uorinated greenhouse gas.
• Installation,operationandmaintenance canonlybe carried outbycertiedpersons.

18
6 INSTALLATIONSITE.
• eunit is suppliedwith ammablerefrigerantandmust be installedina properlyventilat-
ed place. If the appliance is installed indoors, an additional refrigerant detection device
must be added in addition to a further ventilation appliance pursuant to standard EN378.
Makesuretotakeadequatemeasuressothattheunitisnotusedtohousesmallanimals.
• Animals that come into contact with electric components could cause operating failures,
smokeorre.Pleaseadvisethecustomertokeeptheareaaroundtheunitclean.
- Choose an installationsitewherethe followingconditions are met and which isapproved bythecustomer.
- Wellventilated places.
- Places wheretheunitdoesnotbother neighbours.
- Safeplacesthatcanbear theweightandvibrationsofthe unitandwhereitcanbe installed on a atsurface.
- Places whereammablegas orammableproductleaks are notpossible.
- eappliance isnotintendedtobe used in potentially explosiveatmospheres.
- Places whereclearance formaintenancecan beguaranteed.
- Places wherethepipesandlengths ofthewiringofthe units are within theadmissiblelimits.
- Places wherethewaterescapingtheappliancecannotdamagethe environment(e.g. in caseof blockeddrainpipe).
- Places whererain can bepreventedas far as possible.
- Do not install the unit in places which are oen used as workspace. In case of construction work (for example grinding, etc.) which
creates lotsofdust,the appliancemust becovered.
- Donotplace any objector equipment abovetheunit(topplate).
- Donotclimb,sitorstandontheunit.
- Make sure that sucientprecautionsaretakenincase ofrefrigerantleaks according to local lawsandregulationsonthematter.
- Donotinstallthe unitnearthe sea or in the presenceofcorrosivegas.
- Whentheunit isinstalledina placeexposedto strongwind, payparticular attentiontothefollowing.
Strong winds 5 m/sec or more that blow against the air outlet of the unit cause a short circuit (suction of exhaust air) which could have
thefollowing consequences.
- Deteriorationof operating capacity.
- Frequentaccelerationoficinginheating mode.
- Interruptionofoperationduetothehigh pressure increase.
- Whenastrongwindcontinuouslyblowsonthefrontoftheunit, thefancanbegin to spinso quicklythat it breaks.
Undernormalconditions, refer to the followinggures for installationoftheunits4-16kW:
A
15
Unit A
4-6 kW ≥300 mm
8-16 kW ≥300 mm

19
If thereisstrongwindandits directioncanbe foreseen,referto the gures belowforinstallationoftheunit (anyofthemwill do).
Turn the outlet side ofthe airtowards the wallofthebuilding, fenceorscreen.
B
16
Unit A
4-6 kW ≥1000mm
8-16 kW ≥1500 mm
Make sure there issucientspace forinstallation.
Arrange theoutlet sideatarightangle with respectto the winddirection.
17
- Preparea waterdischargechannel aroundthefoundation,todrain the wateraroundthe unit.
- If the water has diculty owing out of the unit, mount the unit on a cement block foundation, etc. (approximately 100 mm (3.93 in)
high).
- If the unit is installed on a frame, assemble a waterproof plate (about 100 mm) on the lower side of the unit to prevent the water from
enteringfrombelow.
- Whenthe unitis installed in a place frequentlyexposed to snow,please pay particular attention to raise thefoundationas high aspos-
sible.
- If the unitis installed onabuilding structure,pleaseinstalla waterproof tray(about100 mm on the bottomside of the unit) sothat the
drain waterdoes notowout (seeFig. 18).
18

20
6.1 SELECTIONOFACOLD WEATHERLOCATION.
See Chap.4,paragraph“Handling.“.
Whentheunit isused in coldclimates, makesureto followtheinstructionsbelow.
- Toavoidexposureto wind, install theunitwith the intake sidefacingthe wall.
- Neverinstalltheunit in a placewhere the intake sidecanbe directlyexposed to the wind.
- Toavoidexposureto the wind, install a deectorontheair exhaustsideofthe unit.
- In areas with abundant snowfalls, it is very important to choose an installation site where the snow does not aect the appliance. If a
side blowing snowfall can occur, make sure that the nned coil of the heat exchanger is not aected by the snow (build a roof when
necessary).
Models 4-16 kW
①
②
19
Key (Fig.19):
1 - Buildalarge roof.
2 - Buildapedestal.
Install theunithighenoughso thatitcannotbe buriedinthesnow.
6.2 SELECTION OFAHOTWEATHER LOCATION.
Since the outside temperature is measured by the air thermistor of the heat pump, make sure to install the unit in the shade or to build a
roofso that itisnotexposed to directsunlightandis notaectedbytheheat ofthe sun. Otherwisetheunitwillneed tobeprotected.