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7Instructions for use ecoTEC / 838402_06
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 temperature, 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 heating system
6 Main ON/OFF control
7 “+” button for moving forward in the display
8 “-” button for moving back in the display or for displaying the
pressure in the heating system
9 “Reset” button
10 Maximum radiator temperature control
11 Maximum hot water temperature control and warmstart 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.
As long as this symbol appears in the display,
a heating flow temperature and hot water outlet
temperature is set by the vrnetDIALOG accessory,
which means the appliance uses temperatures
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.
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
4.3 Initial checks before turning on
4.3.1 Opening the service valves
ecoTEC plus and pro
h
Note
If a bottom cover is fitted to the boiler the
service valves are behind this cover.
90˚
4
3
1
2
Fig. 4.5 Opening the service valves on ecoTEC plus combina-
tion boilers
Operation 4
7


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