Control Panel; Ambient Temperature And Altitude - Grundfos CME Instrucciones De Instalación Y Funcionamiento

6. Control panel

The pump control panel, see fig. 1, incorporates the
following buttons and indicator lights:
• Buttons, and , for setpoint setting.
• Light fields, yellow, for indication of setpoint.
• Indicator lights, green (operation) and red (fault).
Set the desired setpoint by pressing button
The light fields on the control panel will indicate the
setpoint set.
Continuously pressing button
Continuously pressing button
setpoint to max.
Light
fields
Indicator lights
Fig. 1 Control panel
During normal operation the green indicator light is
on.
In case of non-critical faults allowing continued
operation of the pump, both the red and green
indicator lights will be on.
In case of a critical fault stopping the pump, only the
red indicator light will be on.
In case of a fault that cannot be reset,
always call a Grundfos service man,
Caution
even if the pump is able to continue
operation.

7. Ambient temperature and altitude

If the ambient temperature exceeds +40 °C or if the
pump is installed more than 1000 m above sea level,
the motor must not be fully loaded due to the low
density and consequently low cooling effect of the
air. In such cases, it may be necessary to use a
motor with a higher output.
or .
Figure 2 shows that the load of a CME Booster must
be reduced to 88 % when installed 3500 m above
sea level. At an ambient temperature of 70 °C, the
will stop the pump. load must be reduced to 78 % of rated output.
will increase In such situations, use an oversize motor.
Buttons
P 2
[%]
100
90
80
70
60
50
20 25 30 35 40 45 50 55 60 65 70 75 80
1000 2250
Fig. 2 P2 depends on temperature and altitude
CME
t [°C ]
3500 4750 m
9