Operation 4; Overview; Operating Controls; Advanced Multifunctional System Display - Vaillant ecoMAX Instructions For Use Manual

4 Operation

4.1 Overview

4.1.1 Operating controls

For access to the controls press the upper middle of the
lower front panel and drop it down. The following can be
seen:
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1 2
Fig. B.1 Operating controls
1 Maximum radiator temperature control (page 7)
2 The "+" and "-" buttons for the display panel
3 Main ON/OFF control
4 Built in control/timer module (if fitted)
5 The "i" information button
6 Boiler display indicates current operating mode and additional
information
7 "Reset" button: (see page 8)
8 Maximum storage temperature control (page 6)
9 Pressure gauge displaying the pressure in the heating system

4.1.2 Advanced multifunctional system display

Fig. B.2 Advanced multifunctional system display
Instructions for use ecoMAX
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2
1
bar
0
3 9
1
2
1 3
bar
0
The boiler system display (Fig. B.2) shows – during nor-
mal operation – current information on the heating
system flow temperature (Fig. B.2. example gives flow
temperature of 45 °C).
In the event of a malfunction, this temperature display is
replaced by the relevant error code (see page 9).
The display also gives the following information:
1 Indication of the current heating system flow tem-
perature, or display of a status (see page 8)
or error code
Fan speed malfunction
Fan speed malfunction
Heating mode active
Hot water on
3
Illuminated: hot water demand
Flashing: storage charging on (burner on)
Warmstart is on
Illuminated: storage charging ready
Flashing: storage charging on (burner on)
Internal pump is running
Gas valve is activated
Flame crossed out:
Boiler is at lock out and will display fault code
Normal flame:
Correct burner operation

4.2 Initial checks before turning ON

4.2.1 Opening the service valves

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1
Fig. B.3 Opening the service valves (635)

Operation 4

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