Hitachi RAS-4.0UFESNH1 - Temperature Limit and Room Correction

Safety precautions
This air conditioner uses new refrigerant HFC(R32).
Since the max. working pressure is 4.3MPa (R22: 3.1MPa), some of the piping and installation and service tools are special.
This air conditioner uses power supply: 220-240V ~, 50Hz (3.0/3.5/4.0HP)
380-415V 3N ~, 50Hz (5.0/6.0/6.5HP)
Please read these SAFETY PRECAUTIONS carefully to ensure correct installation.
• Be sure to use a dedicated power circuit, and do not put other loads on the power supply.
• Be sure to read these SAFETY PRECAUTIONS carefully before installation.
• Be sure to comply with SAFETY PRECAUTIONS of installation manual, because it contains importantsafetyissues.Denitions
for identifying hazard levels are provided below with their respective safety symbols.
!
WARNING:
Hazards or unsafe practices which COULD result in severe personal injury or death.
!
CAUTION:
Hazards or unsafe practices which COULD result in minor personal injury or product or property damage.
• Pleasecarefullyleindoorandoutdoorunitmanualawayforfuturereference.
!
WARNING
• Installationshouldbeperformedbythequaliedpersonnel.Incompleteinstallationmaycausedamagebyre,electricshock,drop
orwaterleakage.
• Perform the installation securely by referring to the installation manual. Incomplete installation could cause a personal injury arising
fromre,electricshock,theunitfallingorleakageofwater.
• Install the air conditioner on a solid base that can support the unit weight. An inadequate base or incomplete installation may cause
injury due to unit falling off from the base.
• Wiring must be done by a qualied electrician. All the electric works must be performed in accordance with national wiring
regulations and local electrical codes.
• Usethespeciedtypeofwireforelectricalconnectionssafely.Firmlyclamptheinterconnectingwiressothattheirterminalsreceive
no external stresses.
• Forwiring,useacablelongenoughtocovertheentiredistancewithnoconnection,anddon'tconnectmultipledevicestothesame
ACpowersupply.Otherwise,itmayresultinbadcontact,poorinsulation,unallowablecurrent,andthusresultinareorelectric
shock.
• Afterallinstallationsarecompleted,checktomakesurethatnorefrigerantleakageoccurs.Iftherefrigerantgasleakagetothe
interior,andtheheater,stoveametouchingit,willgenerateharmfulsubstances.
• Ifthepowersupplycircuitcapacityorelectricalworkisnotinplace,itmaycauseareorelectricshock.
• Attach the electrical cover to the indoor unit and the service panel to the outdoor unit securely.
• Iftheelectricalcoversontheindoorunitortheservicepaneloftheoutdoorunitarenotattachedsecurely,itcouldresultinare
oranelectricshockduetodust,water,etc.
• PleasebesuretocutoffthemainpowersupplybeforetheinstallationofindoorelectronicPCBorwiring.Otherwise,itwillcause
electricshock.
• Pay attention to protecting the outdoor machine installation location. Avoid people or small animals contact with electrical
components.Pleasekeepthesurroundingenvironmentoftheoutdoorunitcleanandtidy.
• Wheninstallingorrelocatingtheunit,makesurethatnosubstanceotherthanthespeciedrefrigerant(R32)enterstherefrigerant
circuit.
• Any presence of foreign substance such as air can cause abnormal pressure rise or an explosion.
SAFETY PRECAUTIONS
HO2019292HA
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