EDM SYSCREW AIR EVO HSE

SYSCREW 380-1260 AIR EVO HSE
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EN 14511
Starting2012CampaignEuroventCerticationCompanytookdecisiontostartcertifyonlyperformancesdeclaredinac-
cording severe European Standard EN14511.
BEFORE 2012: GROSS PERFORMANCES
Beforethisdateallcapacityperformancesaredeclared,measuredandcertiedbyEurovent,asGROSSperformances.
COOLINGorHEATINGCAPACITYwasratedwithouttakinginaccountthenegativecontributionoftheheatexchangerPres-
sure Drop or the positive contribution of the Head Available prevalence in example.
OWERINPUTwasratedaspuresumofallpowerinputcontributionfromallmotorsttedontheunit.Withouttakingin
account the correction due to power spent to win the exchanger Pressure Drop in example.
AFTER 2012: NET PERFORMANCES
AfterthisdatealldataarecertiedaccordingEN14511.MainlyconsequencesinexampleonWaterchillerorheatpumpare:
COOLINGorHEATINGCAPACITYisnowratedtakinginaccountthenegativecontributionoftheheatexchangerPressure
DroporthepositivecontributionoftheHeadAvailableprevalenceinexample.IncaseofWatertoWaterunit,inexample,
both exchanger Pressure Drop values are taken in account in the formula.
POWERINPUTisnowratedasallpowerinputcontributionfromallmotorsttedontheunittakinginaccountalsothe
correction due to power spent to win the exchanger Pressure Drop in example.
As an important consequence of these new rules setted by Eurovent is that EER, COP and ESEER are also affected by
thesecorrection.Allefciencyindexarenowcalculated,measuredandcertiedaccordingnewrulessettedbyEurovent
according EN14511.
Airtowaterunit(nonductedoutdoor):
Where:
Ph = NET heating capacity.
Pc = NET cooling capacity.
Pe = electrical power input.
Ph
m
= gross heat capacity, expressed in Watts.
Pc
m
= gross cool capacity, expressed in Watts.
q
wi
 =nominalliquidowrate.
Δ
pe,wi
= measured available external static pressure.
Δ
pi,wi
= measured internal static pressure difference.
η
pi
 =efciencyofthepump.
IE =pumpmotorefciency.
Reference: Guidelines for the declaration of performances according to EN14511 (available a copy upon request for
Systemair customer).
Indoor pump is an integral part Indoor pump is not an integral part
ECC 2011 (gross) EN14511 ECC 2011 (gross) EN14511
Ph Ph
m
(1)
Ph
m
–
q
wi
Δp
e,wi
(IE-h
pi
)
η
pi
Ph
m
Ph
m
+
q
wi
(–Δp
i,wi
)
(0,88-h
pi
)
η
pi
Pc Pc
m
(1)
Pc
m
+
q
wi
Δp
e,wi
(IE-h
pi
)
η
pi
Pc
m
Pc
m
–
q
wi
(–Δp
i,wi
)
(0,88-h
pi
)
η
pi
Pe Pe
m
(1)
Pe
m
–
q
wi
Δp
e,wi
η
pi
Pe
m
Pe
m
+
q
wi
(–Δp
i,wi
)
η
pi
(1) Measured with the indoor pump not running.