Installation Altitude; Humidity; Motor Cooling; User Interfaces - Grundfos TPE Series Installation And Operating Instructions Manual

8.4 Installation altitude

Installation altitude is the height above sea level of
the installation site.
Motors installed up to 1000 m above sea level can
be loaded 100 %.
The motors can be installed up to 3500 m above sea
level.
Motors installed more than 1000 m above
sea level must not be fully loaded due to
the low density and consequent low
cooling effect of the air.
P2 [%]
100
90
80
70
60
0 500 1000 1500 2000 2500 3000 3500
Fig. 12 Motor output power in relation to altitude
In order to maintain the galvanic isolation and ensure
correct clearance according to EN 60664-1:2007,
you must adapt the supply voltage to the altitude:
Supply voltage [V]
500
480
460
440
420
400
380
0 500 1000 1500 2000 2500 3000 3500 4000
Fig. 13 Supply voltage for three-phase motor in
relation to altitude
Supply voltage [V]
250
240
230
220
210
200
0 500 1000 1500 2000 2500 3000 3500 4000
Fig. 14 Supply voltage for single-phase motor in
relation to altitude

8.5 Humidity

Maximum humidity: 95 %.
If the humidity is constantly high and above 85 %,
one of the drain holes in the drive-end flange must
be open. See section

8.6 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
motor
• The temperature of the cooling air must not
exceed 50 °C.
• Keep cooling fins and fan blades clean.

9. User interfaces

Altitude [m]
You can make the pump settings by means of the
following user interfaces:
Control panels
• Standard control panel.
See section
• Advanced control panel.
See section
Altitude [m]
Remote controls
• Grundfos GO.
See section
If the power supply to the pump is switched off, the
settings are stored.
Altitude [m]
6.6 Drain holes.
cooling.
WARNING
Hot surface
Death or serious personal injury
- Only touch the buttons on the display as
the product may be very hot.
WARNING
Electric shock
Death or serious personal injury
- If the control panel is cracked or
perforated, replace it immediately.
Contact the nearest Grundfos sales
company.
10. Standard control
11. Advanced control
12. Grundfos GO.
6.4 Ensuring
panel.
panel.
13