Grundfos TPE2 - Page 46

17.6.4 Constant pressure
Pump variant Constant pressure
TPE3, TPE3 D ●
TPE2, TPE2 D ●
We recommend this control mode if the pump is to
deliver a constant pressure, independently of the flow
in the system. The pump maintains a constant
pressure independently of the flow rate.
H
Q
TM057901
Constant pressure
This control mode requires an external pressure
sensor as shown in the examples below. You can set
the pressure sensor in the Assist menu. See
section Assisted pump setup. The setting range is
between 12.5 % of maximum head and maximum
head.
Examples
• One external pressure sensor.
p
p
Constant pressure
Controller settings
For recommended controller settings, see the section
the controller (controller settings).
Related information
17.17 Controller (Controller settings)
17.46 Assisted pump setup
17.6.5
Constant temperature
Pump variant Constant temperature
TPE3, TPE3 D ●
TPE2, TPE2 D ●
This control mode ensures a constant temperature.
Constant temperature is a comfort control mode that
you can use in domestic hot-water systems to control
the flow to maintain a constant temperature in the
system.
H
Q
t
TM057900
Constant temperature
This control mode requires either an internal or
external temperature sensor as shown in the
examples below.
Examples
• Factory-fitted temperature sensor. Only TPE3,
TPE3 D.
t
• One external temperature sensor.
t
t
Constant temperature
Controller settings
For recommended controller settings, see the section
the controller (controller settings).
Related information
17.17 Controller (Controller settings)
46
English (GB)