Technical Data; Enclosure Class; Sound Pressure Level; Ambient Temperature - Grundfos CM-L Instrucciones De Instalación Y Funcionamiento

10. Technical data

10.1 Enclosure class

IPX4D

10.2 Sound pressure level

The sound pressure level of the pump is lower than
70 dB(A).

10.3 Ambient temperature

-30 to 55 °C.
Relative humidity
Maximum 95 %.
Liquid temperature
-20 to 60 °C.
Insulation of pump head
Do not insulate the pump head. If you insulate the
pump display and the liquid temperature is lower
than the ambient temperature, do not cover the drain
holes in the stator housing.
System pressure
See the pump nameplate.
Start and stop input, basic and relay modules
External potential-free contact.
Maximum load: 250 V, 1.5 mA.
Minimum load: 100 V, 0.5 mA.
Operating and fault signal output, relay module
Internal potential-free changeover contact.
Maximum load: 250 V, 2 A, AC.
Minimum load: 5 V, 100 mA, DC.

10.4 Minimum inlet pressure

Minimum inlet pressure: 1 bar

10.5 Maximum inlet pressure

The actual inlet pressure plus the pressure when the
pump is operating against a closed valve must
always be lower than the maximum system pressure.

11. Disposal

This product or parts of it must be disposed of in an
environmentally sound way:
1. Use the public or private waste collection service.
2. If this is not possible, contact the nearest
Grundfos company or service workshop.
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