30
Aeraulic head losses and options available for the ventilating section
With the exception of units for which oversize fans are required, as standard, the units are designed considering that,
at the nominal air flow rate, the fans work with null available pressure.
If there are obstacles to free air flow, you should consider the additional aeraulic head losses that will cause a reduction
of the air flow rate and a consequent deterioration of performance.
The following diagrams show the trend of cooling capacity (P
C
), EER, total absorbed power (P
abs
) and reduction of the
maximum external air temperature in chiller operating mode, depending on the aeraulic head losses that the fans will
have to overcome.
AC fans (Ø 630)
EC fans (Ø 630)
Oversize EC fans (Ø 630)
Содержание Zeta Rev HE FC
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Страница 23: ...21 PUMP DATA Model Rated power Rated current Qmin Qmax kW A m h m h P1 1 9 4 2 7 18 P2 3 0 6 1 12 42 ...
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