Vailant ecoTEC plus 937, Инструкция по установке и обслуживанию

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Installation and maintenance instructions ecoTEC plus 937 0020031552_06
Fig. 7.2 Display in heating mode
7.1.3 Hot water operation
Switch on the appliance.
Open the hot water tap fully.
Press "
i " to activate the status indicator.
If the hot water operation is operating properly, the dis-
play shows "
S.14 ".
Fig. 7.3 Display during hot water preparation
7.1.4 Storage tank charging
i
The storage tank charging is delivered de-
activated and must be activated during com-
missioning.
The storage tank charging of the shift load storage tank
is only active if the warm start function is switched on.
This is shown by the symbol in the display.
With the storage tank charging function switched on
you can set the following temperatures using the knob
for hot water draw-off temperature:
Knob setting "b“ 50 °C
Knob setting "a“ 65 °C
With the storage tank charging function switched off
you can set the following temperatures using the knob
for hot water draw-off temperature:
>
>
>
–
–
–
Knob setting "c“ 35 °C
Knob setting "a“ 65 °C
a
a
b
c
c
1
1
1
Fig. 7.4 Setting range for the storage tank temperature
If the storage tank charging function is switched off the
storage tank is not held at temperature. In this case the
unit switches on when water is drawn off and operates
on a through-flow principle.
a
Danger!
Risk of scalding caused by the Legionella
protection function.
The appliances are fitted with an automatic
Legionella protection control:
If the temperature falls below 50 °C in the
domestic hot water cylinder, the cylinder is
heated up to 70 °C once every 24 hours. In
such a case, there is a risk of scalding when
drawing water.
Please note when drawing water that it can
be very hot.
The Legionella protection control can be de-activated in
the diagnosis level "
d.74 “.
Activating the storage tank charging
Switch on the appliance.
Activate the storage tank charging by turning the hot
water temperature control knob fully clockwise.
–
–
>
>
>
7 Commissioning Part II: Functional checks