Grundfos TPE2 - Page 49

17.6.8 Constant flow rate
Pump variant Constant flow rate
TPE3,TPE3 D ●
TPE2,TPE2 D ●
The pump maintains a constant flow in the system,
independently of the head.
H
Q
Q
set
TM057955
Constant flow rate
This control mode requires an external flow sensor.
See the example below.
Example
• One external flow sensor.
Q
Constant flow rate
Controller settings
For recommended controller settings, see the section
on the controller (controller settings).
Related information
17.17 Controller (Controller settings)
17.6.9
Constant level
Pump variant Constant level
TPE3,TPE3 D ●
TPE2,TPE2 D ●
The pump maintains a constant level, independently
of the flow rate.
H
Q
TM057941
Constant level
This control mode requires an external level sensor.
The pump can control the level in a tank in two ways:
• As an emptying function where the pump draws
the liquid from the tank.
• As a filling function where the pump pumps the
liquid into the tank.
See the figure Constant level.
The type of level control function depends on the
setting of the built-in controller. See the section on the
controller (controller settings).
Examples
• One external level sensor.
- emptying function.
L
• One external level sensor.
- filling function.
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