DAB evoplus+ Mode D'emploi page 21

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Regulation indicated for:
- Heating and conditioning plants with high load losses
- Two-pipe systems with thermostatic valves and head ≥ 4 m
- Plants with secondary differential pressure regulator
- Primary circuits with high load losses
- Domestic water recirculating systems with thermostatic valves on the rising columns.
8.1.2. Regulation with Constant Differential Pressure
In this regulating mode the differential pressure is kept constant, irrespective
of the demand for water,
The Hs set point may be set from the display or by an external signal 0-10V
or PWM.
Regulation indicated for:
- Heating and conditioning plants with low load losses
- Two-pipe systems with thermostatic valves and head ≤ 2 m
- Single-pipe systems with thermostatic valves
- Plants with natural circulation
- Primary circuits with low load losses
- Domestic water recirculating systems with thermostatic valves on the rising columns.
8.1.3. Regulation with constant curve
In this regulating mode the circulator works on characteristic curves at a
constant speed. The operating curve is selected by setting the rotation
speed through a percentage factor. The value 100% indicates the maximum
limit curve. The actual rotation speed may depend on the power and
differential pressure limits of your circulator model.
The rotation speed may be set from the display or by an external signal 0-10V or PWM.
Regulation indicated for heating and conditioning plants with constant flow.
8.1.4. Regulation with constant and proportional differential pressure depending on the water
temperature
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In this regulating mode the regulating set point Hs is
reduced or increased according to the water temperature.
THs may be set from 0ºC to 100 ºC in order to allow
operation in both heating and conditioning plants.
Regulation indicated for:
-
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9. CONTROL PANEL
The functions of EVOPLUS circulators can be modified by means of the control panel on the cover of
the electronic control device.
On the panel there are: a graphic display, 4 navigation keys and 3 LED warning lights (see Figure 10).
9.1. Graphic Display
Using the graphic display it will be possible to navigate in an easy and intuitive menu which will enable
you to check and modify the system operating mode, the enabling of the inputs and the working set-
point. It will also be possible to view the system status and the log of any alarms memorised by the
system.
9.2. Navigation Buttons
4 buttons are provided for navigating in the menu: 3 buttons under the display and 1 at the side. The
buttons under the display are called active buttons and the one at the side is called hidden button.
Each page of the menu is made in such a way as to indicate the function associated with the 3 active
buttons (the ones under the display).
9.3. Warning Lights
Yellow light: System live signal.
If lit, it means that the system is live.
Never remove the cover if the yellow light is lit.
Red light: Warning of an alarm/malfunction present in the system.
If the light is blinking it is a non-blocking alarm and the pump can still be controlled. If the light is fixed it
is a blocking alarm and the pump cannot be controlled.
Green light: Pump ON/OFF signal.
if lit, the pump is running. If off, the pump is stopped..
10. MENUS
EVOPLUS circulators offer 2 menus: user menu and advanced menu.
The user menu is accessible from the Home Page by pressing and releasing the central "Menu" button.
The user menu is accessible from the Home Page by holding down the central "Menu" button for 5
seconds.
Plants with variable flow (two-pipe heating plants),
where a further reduction of the circulator performance
is ensured depending on the lowering of the
temperature of the circulating liquid, when the demand
for heating is lower.
Plants with constant flow (single-pipe and underfloor
heating plants), where the circulator performance can
be regulated only by activating the temperature
influence function.