Automatic Night Setback; Analog Inputs; Setpoint Influence - Grundfos TPE2 D Manual Del Usuario

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17.9 Automatic Night Setback

Pump variant
TPE3, TPE3 D
TPE2, TPE2 D
Once you have enabled automatic night setback, the pump
automatically changes between normal duty and night setback,
duty at low performance.
Changeover between normal duty and night setback depends on
the flow-pipe temperature.
The pump automatically changes over to night setback when the
built-in sensor registers a flow-pipe temperature drop of more
than 18 to 27 °F (10 to 15 °C) within approximately two hours.
The temperature drop must be at least 1.8 °F/min (0.1 °C/min).
Changeover to normal duty takes place without a time lag when
the temperature has increased by approximately 18 °F (10 °C).
You cannot enable automatic night1 setback when the pump is in
constant-curve mode.
Factory setting
See section
35. Factory
settings.

17.10 Analog inputs

Pump variant
TPE3, TPE3 D
TPE2, TPE2 D
Function
Analog input 1, setup
Analog input 2, setup
Analog input 3, setup
* See section
9.5.1 Connection terminals, advanced functional
module, FM
300.
Set the analog input for a feedback sensor via the Assisted pump
setup menu. See section
17.48 Assisted pump
If you want to set an analog input for other purposes, you can do
this manually.
You can set the analogy inputs via the Setup, analog input menu.
See section
17.49 Setup, analog
If you perform the manual setting via Grundfos Go, you need to
enter the menu for the analog input under the Settings menu.
Function
You can set the analog inputs to these functions:
Not active
Feedback sensor
Sensor used for the selected control mode.
Ext. setpoint infl.
See section

17.20.1 Setpoint influence

Other function.
38

Automatic Night Setback

-

Analog inputs

Terminal*
4
7
14
setup.
input.
Measured parameter
Select one of the parameters, such as the parameter to be
measured in the system by the sensor connected to the actual
analog input. See fig. 54.
5
11
1
3
13
DPT
Q
PT
PT
TT
2
4
DPT
DPT
9
LT
Fig. 54 Overview of sensor locations
Sensor function, measured parameter
Inlet pressure
Diff. press., inlet
"Outlet pressure"
Diff. press.,outlet
Diff. press, pump
Operating mode
Press. 2, external
Diff. press., ext.
Storage tank level
Feed tank level
Pump flow
Flow, external
Liquid temp.
TPE3, TPE3 D: The temperature is
measured by the built-in sensor.
Temperature 1
Temperature 2
Diff. temp., ext.
Ambient temp.
Other parameter
6
14
PT
TT
12
8 16
15
7
Q
DPT DTT
PT
TT
10
LT
Pos.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Not shown
Not shown

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