Grundfos TPE Series - Page 28

English (GB)
28
13.5.2 "Constant pressure"
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. See fig. 26.
Fig. 26 "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
13.41 Assisted pump setup.
Fig. 27 "Constant pressure"
Controller settings
For recommended controller settings, see section
13.14 "Controller" ("Controller settings").
13.5.3 "Constant temperature"
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. See fig. 28.
Fig. 28 "Constant temperature"
This control mode requires an external temperature
sensor. See the examples below.
Fig. 29 "Constant temperature"
Controller settings
For recommended controller settings, see section
13.14 "Controller" ("Controller settings").
Pump variant "Constant pressure"
TPE, TPED, NBE,
NBGE, NKE, NKGE
●
TPE, TPED, NBE, NKE
Series 2000
●
TM05 7901 1613
Examples
• One external pressure sensor.
H
Q
p
p
Pump variant
"Constant
temperature"
TPE, TPED, NBE,
NBGE, NKE, NKGE
●
TPE, TPED, NBE, NKE
Series 2000
●
TM05 7900 1613
Examples
• One external temperature sensor.
H
Q
t
t
t