
1
Installation manual
SAVEWALL HRV NEXT
G
Fig.1
SAVEWALL HRV NEXT is a single alternate flow decentralized (single point) residential heat recovery unit, also called
«push&pull» unit, designed to ensure adequate ventilation in enclosed environments without energy losses.
It is recommended that two units are installed in a pair: when one unit is pulling, the other is pushing.
The pair of units can be installed in the same room or in different rooms (i.e. living-room and bedroom). The unit is suitable
for installation on an outside wall.
Read this manual carefully before using the product and keep it in a safe
place for reference.
This product was constructed up to standard and in compliance with
regulations relating to electrical equipment and must be installed by
technically qualified personnel.
The manufacturer assumes no responsibility for damage to persons or
property resulting from failure to observe the regulations contained in this
booklet.
PRECAUTIONS FOR INSTALLATION, USE AND MAINTENANCE
•Thedeviceshouldnotbeusedforapplicationsotherthanthosespeciedinthismanual.
•Afterremovingtheproductfromitspackaging,verifyitscondition.Incaseofdoubt,contactaqualiedtechnician.Donot
leave packaging within the reach of small children or people with disabilities.
•Donottouchtheappliancewithwetordamphands/feet.
•Thisappliancecanbeusedbychildrenagedfrom8yearsandaboveandpersonswithreducedphysical,sensoryor
mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use
of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning
and user maintenance shall not be made by children without supervision.
•Donotusetheproductinthepresenceofinammablevapours,suchasalcohol,insecticides,gasoline,etc.
•If any abnormalities in operation are detected, disconnect the device from the mains supply and contact a qualied
technician immediately. Use original spare parts only for repairs.
•Theelectricalsystemtowhichthedeviceisconnectedmustcomplywithregulations.
•Beforeconnectingtheproducttothepowersupplyorthepoweroutlet,ensurethat:
- the data plate (voltage and frequency) correspond to those of the electrical mains
-theelectricalpowersupply/socketisadequateformaximumdevicepower.Ifnot,contactaqualiedtechnician.
•Thedeviceshouldnotbeusedasanactivatorforwaterheaters,stoves,etc.,norshoulditdischargeintohotair/fumevent
ducts deriving from any type of combustion unit. It must expel air outside via its own special duct.
•Operatingtemperature:-20°Cupto+50°C.
•Thedeviceisdesignedtoextractcleanaironly,i.e.withoutgrease,soot,chemicalorcorrosiveagents,orammableor
explosive mixtures.
•Donotleavethedeviceexposedtoatmosphericagents(rain,sun,snow,etc.).
•Donotimmersethedeviceoritspartsinwaterorotherliquids.
•Turnoffthemainswitchwheneveramalfunctionisdetectedorwhencleaning.
•Forinstallationanomnipolarswitchshouldbeincorporatedinthexedwiring,inaccordancewiththewiringregulations,to
provide a full disconnection under overvoltage category III conditions (contact opening distance equal to or greater than 3mm).
•Ifthesupplycordisdamaged,itmustbereplacedbythemanufacturer,itsserviceagentorsimilarlyqualiedpersonsin
order to avoid a hazard.
•Donotobstructthefanorexhaustgrilletoensureoptimumairpassage.
•Ensureadequateairreturn/dischargeinto/fromtheroomincompliancewithexistingregulationsinordertoensureproper
device operation.
•Iftheenvironmentinwhichtheproductisinstalledalsohousesafuel-operatingdevice(waterheater,methanestoveetc.,
that is not a “sealed chamber” type), it is essential to ensure adequate air intake, to ensure good combustion and proper
equipment operation.
INTRODUCTION
The unit should operate continuously, and only stopped for maintenance or service.
When heat exchange is not useful (for example in mid-seasons when indoor and outdoor temperatures are similar), or
when heat exchange is not recommended (for example with the option “summer free cooling”), it is recommended to set
theunitin“extract-only”or“intake-only”modeandNOTtoswitchitoff.