12.1.4 Air humidity
Maximum air humidity: 95 %.
If the air humidity is constantly high and above 85
%, the drain holes in the drive-end flange should
be open.
Related information
5.5 Drain holes
12.1.5 Motor cooling
To ensure cooling of motor and electronics, the
following must be observed:
•
The motor must be positioned in such a way
that adequate cooling is ensured.
•
The temperature of the cooling air must not
exceed 50 °C (122 °F) for 1x230V or 45 °C
(113 °F) for 1x115V CMBE pumps.
•
The cooling fins and fan blades must be kept
clean.
Related information
5.3 Motor cooling
12.1.6 Pumps with factory-fitted pressure
sensor
The pressure sensor is fitted on the pump outlet
side, and the pump is set to constant pressure.
In this control mode, the pump will adjust its
performance, i.e. pump outlet pressure, to the
desired setpoint (Hset).
H
Pump in constant-pressure control mode
13. Disposing of the product
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.
3. Dispose of the waste battery through the
national collective schemes. If in doubt,
contact your local Grundfos company.
See also end-of-life information at
www.grundfos.com/product-recycling.
Q
WARNING
Magnetic field
Death or serious personal injury
‐
Persons with pacemakers disman-
tling this product must exercise
caution when handling the magnet-
ic materials embedded in the rotor.
27