Mitsubishi EHST20C-VM2C User Manual

4
SAFETY PRECAUTION
2
Please read the following safety precautions carefully.
WARNING:
Precautions that must be observed to prevent injuries or death.
CAUTION:
Precautions that must be observed to prevent damage to unit.
This installation manual along with the user manual should be left with the product after installation for future reference.
Mitsubishi Electric is not responsible for the failure of locally-supplied parts.
• Besuretoperformperiodicalmaintenance.
• Besuretofollowyourlocalregulations.
• Besuretofollowtheinstructionsprovidedinthismanual.
WARNING
Mechanical
The cylinder unit and outdoor unit must not be installed, disassembled, relocated, altered or repaired by the user. Ask an authorised installer or technician. If
theunitisinstalledimproperlyormodiedafterinstallationbytheuserwaterleakage,electricshockorremayresult.
Theoutdoorunitshouldbesecurelyxedtoahardlevelsurfacecapableofbearingitsweight.
Thecylinderunitshouldbepositionedonahardlevelsurfacecapableofsupportingitslledweighttopreventexcessivesoundorvibration.
Donotpositionfurnitureorelectricalappliancesbelowtheoutdoorunitorcylinderunit.
Thedischargepipeworkfromtheemergencydevicesofthecylinderunitshouldbeinstalledaccordingtolocallaw.
OnlyuseaccessoriesandreplacementpartsauthorisedbyMitsubishiElectricaskaqualiedtechniciantottheparts.
Electrical
Allelectricalworkshouldbeperformedbyaqualiedtechnicianaccordingtolocalregulationsandtheinstructionsgiveninthismanual.
Theunitsmustbepoweredbyadedicatedpowersupplyandthecorrectvoltageandcircuitbreakersmustbeused.
Wiringshouldbeinaccordancewithnationalwiringregulations.Connectionsmustbemadesecurelyandwithouttensionontheterminals.
Earth unit correctly.
General
Keepchildrenandpetsawayfromboththecylinderunitandoutdoorunit.
Donotusethehotwaterproducedbytheheatpumpdirectlyfordrinkingorcooking.Thiscouldcauseillnesstotheuser.
Do not stand on the units.
Donottouchswitcheswithwethands.
Annualmaintenancechecksonboththecylinderunitandtheoutdoorunitshouldbeconductedbyaqualiedperson.
Donotplacecontainerswithliquidsontopofthecylinderunit.Iftheyleakorspillontothecylinderunitdamagetotheunitand/orrecouldoccur.
Do not place any heavy items on top of the cylinder unit.
Wheninstalling,relocating,orservicingthecylinderunit,useonlythespeciedrefrigerant(R410A)tochargetherefrigerantlines.Donotmixitwithanyother
refrigerantanddonotallowairtoremaininthelines.Ifairismixedwiththerefrigerant,thenitcanbethecauseofabnormalhighpressureintherefrigerant
line,andmayresultinanexplosionandotherhazards.
Theuseofanyrefrigerantotherthanthatspeciedforthesystemwillcausemechanicalfailureorsystemmalfunctionorunitbreakdown.Intheworstcase,this
couldleadtoaseriousimpedimenttosecuringproductsafety.
Inheatingmode,toavoidtheheatemittersbeingdamagedbyexcessivelyhotwater,setthetargetowtemperaturetoaminimumof2ºCbelowthemaximum
allowabletemperatureofalltheheatemitters.ForZone2,setthetargetowtemperaturetoaminimumof5ºCbelowthemaximumallowableowtemperature
of all the heat emitters in Zone2 circuit.
Donotinstalltheunitwherecombustiblegasesmayleak,beproduced,ow,oraccumulate.Ifcombustiblegasaccumulatesaroundtheunit,reorexplosion
may result.
CAUTION
Usecleanwaterthatmeetslocalqualitystandardsontheprimarycircuit.
Theoutdoorunitshouldbeinstalledinanareawithsufcientairowaccordingtothediagramsintheoutdoorunitinstallationmanual.
The cylinder unit should be located inside to minimise heat loss.
Waterpipe-runsontheprimarycircuitbetweenoutdoorandindoorunitshouldbekepttoaminimumtoreduceheatloss.
Ensurecondensatefromoutdoorunitispipedawayfromthebasetoavoidpuddlesofwater.
Remove as much air as possible from the primary and DHW circuits.
Refrigerantleakagemaycausesuffocation.ProvideventilationinaccordancewithEN378-1.
Besuretowrapinsulationaroundthepiping.Directcontactwiththebarepipingmayresultinburnsorfrostbite.
Neverputbatteriesinyourmouthforanyreasontoavoidaccidentalingestion.
Batteryingestionmaycausechokingand/orpoisoning.
Installtheunitonarigidstructuretopreventexcessivesoundorvibrationduringoperation.
DonottransportthecylinderunitwithwaterinsidetheDHWtank.Thiscouldcausedamagetotheunit.
Ifpowertothecylinderunitistobeturnedoff(orsystemswitchedoff)foralongtime,thewatershouldbedrained.
Ifunusedforalongperiod,beforeoperationisresumed,DHWtankshouldbeushedthroughwithpotablewater.
Preventativemeasuresshouldbetakenagainstwaterhammer,suchasinstallingaWaterHammerArrestorontheprimarywatercircuit,asdirectedbytheman-
ufacturer.
Asforthehandlingofrefrigerant,refertotheoutdoorunitinstallationmanual.
OCH570C

Mitsubishi EHST20C-VM2C Specifications

General

Brand	Mitsubishi
Model	EHST20C-VM2C
Category	Heat Pump
Language	English