Dunkirk DWB Series - Manual (Page 29)

Hot water tank exclusion (economy)
Hot water tank temperature maintaining/heating can be
excluded by the user. If excluded, domestic hot water will
not be delivered.
The hot water tank can be deactivated by the user (ECO
mode) by pressing the ECO/COMFORT button (detail 7 -
control panel display). In ECO mode the display activates
the ECO symbol (detail 12 - on control panel display). To
activate COMFORT mode, press the ECO/COMFORT button
(detail 7 - on control panel display) again.
Sliding temperature
• When the optional external probe is installed, the boiler
control system operates with “Sliding Temperature”.
In this mode, the temperature of the heating system is
controlled according to the outside weather conditions,
in order to ensure high comfort and energy saving
throughout the year.
• As the outside temperature increases the system
delivery temperature decreases according to a specifi c
“compensation curve”.
• With Sliding Temperature adjustment, the temperature
set with the heating buttons (details 3 and 4 on control
panel display) become the maximum system delivery
temperature.
• Manufacture recommends setting the maximum value
to allow system adjustment throughout its useful
working range.
• Boiler must be adjusted at time of installation by
qualifi ed service agent. Adjustments can be made by
user to improve comfort.
Compensation curve and curve offset
Press the button (see item 6 on the control panel display)
for 5 seconds once to display the actual compensation
curve, which can be modifi ed with the DHW buttons (see
items 1 and 2 on the control panel display).
Adjust the required curve from 1 to 10 according to the
characteristic.
By setting the curve to 0, sliding temperature adjustment is
disabled.
Compensation curve
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Press the heating buttons (see items 3 and 4 on the control
panel display) to access parallel curve offset modifi able
with the DHW buttons (see items 1 and 2 on the control
panel display).
Parallel curve shift
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10 - OPERATING INSTRUCTIONS
29