29
2) Starting up the Appliance and Adjustment of Domestic Hot Water (DHW) Position:
To start up the boiler, turn DHW knob to requested DHW set temperature. LCD Display will turn on
and Power on sequence will be monitored for several seconds. While the central heating circuit is
closed and the domestic hot water circuit is open, the device is in summer position. Along with the
hot water requirement, the boiler starts to operate through the signal sent to main board, and it
meets the hot water requirement. DHW may be adjusted to required value in between 35-60°C.
In cases when the central heating circuit and domestic hot water are both active, DHW starts to
heat up through the 3 way valve when you open the domestic hot water tap of the device which is
heating the central heating circuit. When you close the tap, DHW position also closes down. After
DHW request, the motorized 3 way valve turns to CH position after a specific period. This condition
is for increasing the comfort of domestic hot water when domestic hot water is requested for more
than once in a short while.
3) Comfort Position (DHW Pre-Heating) / Normal Position:
In comfort position, the device monitors and records your domestic hot water demands in the recent
24 hours. By estimating your domestic hot water requirements that may arise in the next 24 hours
as per the recorded information, it keeps your domestic hot water within the plate exchanger. Thus,
domestic hot water is obtained in a shorter period. The pre-heating cycle takes less than 1 minute.
And in normal position, the DHW pre-heating function becomes cancelled.
In order to select the comfort position, when it is pressed on the “COMFORT” button while the
parameter menu is not active, the COMFORT mode for domestic hot water becomes active. Its ON/
OFF status is determined by the comfort icon on the display.
Figure 24
Figure 25
MIN
MAX
MIN
MAX
i
COMFORT
ECO
RESET
o
C
ECO
COMFORT
bar
MIN
MAX
MIN
MAX
i
COMFORT
ECO
RESET
o
C
ECO
COMFORT
bar
