7Instructions for use ecoTEC
Hot water supply active
(ecoTEC plus combination boilers only)
Illuminated: Hot water demand
(ecoTEC system boilers only)
Illuminated: Heating of an indirect hot water
cylinder turned on
Flashing: Heating demand from the hot
water cylinder, burner on
Warmstart system active
(ecoTEC plus combination boilers only)
Illuminated: Warmstart turned on
Flashing: Warmstart demand, burner on
Internal pump is running
Gas valve is activated
Flame with cross:
Boiler is at lock out and will display fault code
Flame without cross:
Normal burner operation
4.2 Overview of controls on ecoTEC pro
bar
iFP
1
11
10
9
8
7
3
2
4
5
6
Fig. 4.3 ecoTEC pro controls
1 Display indicating the current heating flow tempera-
ture, the pressure in the heating system or additional
information
2 Indicator lights to display the current operating mode
3 The “i” information button
4 Built in control/timer (if fitted)
5 Pressure gauge displaying the pressure in the heat-
ing system
6 Main ON/OFF control
7 “+” button for moving forward in the display
8 “-” button for moving back in the display or for dis-
playing the pressure in the heating system
9 “Reset” button
10 Maximum radiator temperature control
11 Maximum hot water temperature control and warm-
start ON/OFF
Multifunctional display system
ecoTEC pro boiler has a multifunction display (1). When
the main ON/OFF control is in the “ON” position the dis-
play will normally show the system CH flow temperature
of water in the boiler circuit (45 °C in the example),
which confirms that the boiler is functioning correctly.
bar
iFP
1
4
2
3
Fig. 4.4 ecoTEC pro indicator lights
1 Display indicating flow temperature or the system
pressure or the relevent fault code.
2 Green warmstart indicator
Illuminated = Warmstart switched ON
Not illuminated = Warmstart is switched OFF and
there is no demand for hot water
Flashing = There is either a demand for hot water or
warmstart
3 Yellow indicator
Illuminated = Main burner ignited
4 Red indicator
Illuminated = Boiler is at lock out and will display
fault code
As long as this symbol appears in the display, a
heating flow temperature and hot water outlet
temperature is set by the vrnetDIALOG accesso-
ry, which means the appliance uses temperatu-
res other than those set using the controls (10)
and (11).
This condition can only be ended:
- using vrnetDIALOG or
- by a change in temperature at controllers (10)
or (11) of more than ±5 K.
This condition cannot be ended:
- with the "Reset" button (9) or
- by turning the appliance off or on.
Operation 4
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