Grundfos TPE 1000 Series Installation And Operating Instructions Manual page 37

Controller settings
For recommended controller settings, see
section "Controller" ("Controller settings").
Related information
13.14 "Controller" ("Controller settings")
13.5.4 "Constant differential pressure"
Pump variant
TPE, TPED, NBE,
NBGE, NKE, NKGE
TPE, TPED, NBE, NKE
Series 2000
The pump maintains a constant differential pressure,
independently of the flow in the system. This control
mode is primarily suitable for systems with relatively
small pressure losses.
H
"Constant differential pressure"
This control mode requires either an internal or
external differential-pressure sensor or two external
pressure sensors. See the examples below.
Examples
• Factory-fitted differential-pressure sensor, only
TPE, TPED, NBE, NKE Series 2000.
p
One external differential-pressure sensor.
The pump uses the input from the sensor to control
the differential pressure. You can set the sensor
manually or by using the Assist menu. See section
"Assisted pump setup".
"Constant differential
pressure"
●
●
Q
p
p
Two external pressure sensors.
Constant differential-pressure control is achievable
with two pressure sensors. The pump uses the inputs
from the two sensors and calculates the differential
pressure. The sensors must have the same unit and
must be set as feedback sensors. You can set the
sensors manually, sensor by sensor, or by using the
Assist menu. See section "Assisted pump setup".
p
p
p
p
p
"Constant differential pressure"
Controller settings
For recommended controller settings, see section
"Controller ("Controller settings")".
Related information
13.14 "Controller" ("Controller settings")
13.41 Assisted pump setup
p
37