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11.5.5 "Constant differential temperature"
Pump variant
NBE, NBSE, NKE, TPE, TPED
NBE, NBSE, NKE, TPE, TPED
Series 2000
The pump maintains a constant differential temperature in the
system and the pump performance is controlled according to this.
See fig. 33.
H
Fig. 33 "Constant differential temperature"
This control mode requires either two external temperature
sensors or one external differential-temperature sensor. See the
examples below.
Examples
• Two external temperature sensors.
• One external differential-temperature sensor.
Fig. 34 "Constant differential temperature"
Controller settings
For recommended controller settings, see section
11.14 "Controller" ("Controller
settings").
"Constant differential
temperature"
●
●
△t
Q
t
t
t
t
11.5.6 "Constant flow rate"
Pump variant
NBE, NBSE, NKE, TPE, TPED
NBE, NBSE, NKE, TPE, TPED
Series 2000
The pump maintains a constant flow in the system, independently
of the head. See fig. 35.
H
Fig. 35 "Constant flow rate"
This control mode requires an external flow sensor. See the
example below.
Example
• One external flow sensor.
Fig. 36 "Constant flow rate"
Controller settings
For recommended controller settings, see section
11.14 "Controller" ("Controller
settings").
"Constant flow rate"
●
●
Q
Qset
Q
set
Q
27
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