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6.4 Installation altitude
Installation altitude is the height above sea level of the installation
site.
• Motors installed up to 1000 metres above sea level can be
loaded 100 %.
• Motors installed more than 1000 metres above sea level must
not be fully loaded due to the low density and consequent low
cooling effect of the air. See fig. 14.
Fig. 14 Derating of motor output power (P2) in relation to
altitude above sea level
6.5 Air humidity
Maximum air humidity: 95 %.
If the air humidity is constantly high and above 85 %, one of the
drain holes in the drive-end flange should be open. See section
4. Mechanical installation.
6.6 Motor cooling
To ensure cooling of motor and electronics, observe the following:
• Position the motor in such a way that adequate cooling is
ensured. See section 4.3 Ensuring motor cooling.
• The temperature of the cooling air must not exceed 50 °C.
• Keep cooling fins and fan blades clean.
7. User interfaces
Pump settings can be made by means of the following user
interfaces:
• Standard control panel.
See section 8. Standard control panel.
• Grundfos GO Remote.
See section 9. Grundfos GO Remote.
If the power supply to the pump is switched off, the settings will
be stored.
Factory settings
The pumps have been factory-set to constant-curve control
mode. See section 8.1.2 Pump in constant-curve control mode.
The setpoint value corresponds to maximum pump performance.
See data booklet or WebCAPS.
The motor must not be installed more than
2000 metres above sea level.
TM05 6400 4712
1
0.99
0.98
0.97
0.96
0.95
0.94
0.93
0.92
0.91
0.90
0.89
0.88
0
0
1000 1200 1400 1600 1800 2000 2200
[m]
P2
[%]
Warning
The product may be so hot that only the buttons
should be touched to avoid burns.
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