EDM SYSCROLL 20 35 AIR S 1GB05.13

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SyScroll 20-35 Air
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EN 14511-2011
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.
POWER 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
= is the gross heat capacity, expressed in Watts.
Pc
m
= is the gross cool capacity, expressed in Watts.
q
wi
= is the nominal liquid ow rate.
Δ
pe,wi
= is the measured available external static pressure.
Δ
pi,wi
= is the measured internal static pressure difference.
η
pi
= is the efciency of the pump.
Reference: Guidelines for the declaration of performances according to EN14511:2011 (available a copy upon request for
Syste mair customer).
Indoor pump is an integral part Indoor pump is not an integral part
ECC 2011 (gross) EN14511:2011 ECC 2011 (gross) EN14511:2011
Ph Ph
m
(1)
Ph
m
–
q
wi
Δp
e,wi
η
pi
Ph
m
Ph
m
+
q
wi
(–Δp
i,wi
)
η
pi
Pc Pc
m
(1)
Pc
m
+
q
wi
Δp
e,wi
η
pi
Pc
m
Pc
m
–
q
wi
(–Δp
i,wi
)
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.