Setpoint; Control Mode; Operating Mode; Set Manual Speed - Grundfos TPE 1000 Serie Notice D'installation Et De Fonctionnement

11. Description of selected functions

11.1 Setpoint

The setpoint for all control modes can be set in this submenu
when the desired control mode has been selected. See section

11.4 Control mode.

11.2 Operating mode

Possible operating modes:
Normal
•
The pump runs according to the selected control mode.
Stop
•
The pump stops.
Min.
•
The min. curve mode can be used in periods in which a
minimum flow is required.
Max.
•
The max. curve mode can be used in periods in which a
maximum flow is required.
This operating mode is for instance suitable for systems with
hot-water priority.
Manual
•
The pump is operating at a manually set speed.

Set manual speed

See section 11.3
The pump can be set to operate according to the max. or min.
curve, like an uncontrolled pump. See fig. 20.
H
Min.
Fig. 20 Max. and min. curves
11.3 Set manual speed
The pump speed can be set in %. When the operating mode has
been set to "Manual", the pump will run at the set speed.
.
Max.
Q
11.4 Control mode
Possible control modes:
Const. pressure (constant pressure)
•
Const. temp. (constant temperature)
•
Con. diff. press. (constant differential pressure)
•
Con. diff. temp. (constant differential temperature)
•
Const. flow rate (constant flow rate)
•
Const. level (constant level)
•
Const. other val. (constant other value)
•
Const. curve (constant curve).
•
The operating mode must be set to "
Note
Note
before a control mode can be enabled.
The setpoint for all control modes can be changed in the
"Setpoint" submenu under "Settings" when the desired control
mode has been selected.
11.4.1 Constant pressure
The pump maintains a constant discharge pressure,
independently of the flow rate. See fig. 21.
H
Fig. 21 Constant pressure
This control mode requires an external differential-pressure
sensor as shown in the examples below:
Examples
• One external differential-pressure sensor.
p
Fig. 22 Constant pressure
Normal
"
Q
p
17