Grundfos ALPHA2 - System pressure; Relative air humidity (RH); Enclosure class; Inlet pressure

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3.3 System pressure
Maximum 1.0 MPa (10 bar). See fig. 2.
3.4 Relative air humidity (RH)
Maximum 95 %. See fig. 2.
3.5 Enclosure class
IP 42. See fig. 2.
3.6 Inlet pressure
Minimum inlet pressure in relation to liquid temperature. See fig. 2.
Liquid temperature
Minimum inlet pressure
[MPa] [bar]
≤ 75 °C 0.005 0.05
90 °C 0.028 0.28
110 °C 0.108 1.08