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9Instructions for use ecoTEC / 838402_06
h
Note
Your appliance has a pressure sensor.
If the pressure falls below 0.6 bar the pressure
flashes in the display.
If it falls below 0.3 bar the appliance switches
off. The error message F.22 appears in the dis-
play. The system must be filled with water be-
fore you start up the appliance again.
4.4 Turning the boiler ON
1
2
Fig. 4.8 Switching on the appliance (example: ecoTEC plus)
• Use the main ON/OFF control to switch the appliance on.
I: “ON” – 0: “OFF”
When you switch on the appliance, the current operat-
ing status appears in the display (2).
To adjust the appliance according to your requirements,
read sections 4.5 and 4.6, which describe the setting
options for hot water supply and heating.
a
Caution
Risk of damage.
The boiler frost protection and monitoring sys-
tems are only active when the main ON/OFF con-
trol of the appliance is in the “I” position and it is
not disconnected from the main power supply.
4.5 Domestic hot water with ecoTEC combination
boilers
The boiler must only be used when the heating system
contains water (see 4.3.2).
4.5.1 Setting the water temperature
Switch on the appliance as described in section 4.4.
The domestic hot water temperature can be adjusted
using the hot water temperature control (3).
Turn the control clockwise to increase the tempera-
ture and anti-clockwise to decrease the temperature.
This corresponds to:
- left limit approx. 35 °C
- right limit max. 65 °C.
2
3
plus/exclusive pro
Fig. 4.9 Setting the water temperature
h
Note
This control adjusts the maximum domestic hot
water temperature. If adjusting the control up-
wards appears to have no effect on the temper-
ature, then the boiler is already operating at
full output for the selected flow rate.
When you adjust the required temperature, the set
value is shown in the display (2). After five seconds the
display returns to standard mode (the current heating
flow temperature).
a
Caution
If you live in a hard water area please do not set
the control knob (3) above the mid (12 o’clock)
position to prevent excessive scale formation.
4.5.2 Switching the warmstart function on and off
The warmstart system of the ecoTEC combination boil-
ers provides you with hot water at the required temper-
ature immediately. To do this, the hot water heat ex-
changer of the ecoTEC is kept at a pre-selected temper-
ature level and the boiler will therefore periodically op-
erate to maintain this temperature.
ecoTEC plus and ecoTEC exclusive
Activate the warmstart system by briefly turning the
knob (1) all the way clockwise (position a).
Then select the desired hot water outlet temperature
again, e.g. setting b (refer to Section 4.5.1). The appliance
automatically adapts the hot holding temperature to the
set hot water temperature. The tempered water is directly
available at the taps; the symbol
flashes in the display.
Switch off the warmstart system by briefly turning the
knob (1) all the way anti-clockwise (position c). The
symbol
disappears. Then select the required hot
water outlet temperature again, e.g. setting b.
Operation 4
9


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Others manual(s) of Vaillant ecoTEC plus

Vaillant ecoTEC plus User Manual - German - 32 pages

Vaillant ecoTEC plus User Manual - German - 22 pages

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Vaillant ecoTEC plus Installation Guide - Dutch - 76 pages

Vaillant ecoTEC plus User Manual - Dutch, French - 22 pages


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