Joannes ELLEN MD 30 BI 100 Instrucciones De Uso página 23

ELLEN MD 30 BI 100
Turning the boiler off
Press the on/off button (detail 9 - fig. 1) for 1 second.
fig. 6 - Turning the boiler off
When the boiler is turned off, the PCB is still powered.
Heating operation is disabled. The antifreeze system remains activated.
To relight the boiler, press the on/off button (detail 9 fig. 1) again for 1 second.
The boiler will be immediately ready to operate whenever domestic hot water is drawn
or in case of a room thermostat demand.
Shutting down the boiler for prolonged periods
To turn off the boiler:
• Press the ON/OFF button (9 - fig. 1)
• Close the gas cock ahead of the boiler.
• Disconnect the power to the unit.
B
To avoid damage caused by freezing during long idle periods in winter, it is ad-
visable to drain all the water from the boiler; DHW and system. Otherwise, drain
just the DHW circuit and add a suitable antifreeze to the heating system, com-
plying with that prescribed in sec. 3.3.
2.4 Adjustments
Summer/Winter Switchover
Press the summer/winter button (detail 6 - fig. 1) for 1 second.
The display activates the Summer symbol (detail 27 - fig. 1): the boiler will only deliver
domestic hot water. The antifreeze system remains activated.
To deactivate the Summer mode, press the Summer/Winter button (detail 6 - fig. 1)
again for 1 second.
Heating temperature setting
Use the heating buttons (detail 3 and 4 - fig. 1) to adjust the temperature from a min.
of 30°C to a max. of 85°C.
In any case it is advisable not to operate the boiler below 45°C.
fig. 7
fig. 8
fig. 9
cod. 3540Z870 - 01/2011 (Rev. 00)
DHW temperature adjustment
Use the DHW buttons (details 1 and 2 - fig. 1) to adjust the temperature from a min. of
10°C to a max. of 65°C.
Room temperature adjustment (with optional room thermostat)
Using the room thermostat, set the temperature desired in the rooms. If the room ther-
mostat is not installed the boiler will keep the heating system at its setpoint temperature.
Room temperature adjustment (with optional remote timer control)
Using the remote timer control, set the temperature desired in the rooms. The boiler unit
will set the system water according to the required room temperature. For information on
the remote timer control, please refer to its user's manual.
Sliding Temperature
When the optional external probe is installed the control panel display (detail 5 - fig. 1)
shows the actual outside temperature read by the probe. The boiler control system works
with "Sliding Temperature". In this mode, the heating system temperature is controlled
according to the outside weather conditions, in order to ensure high comfort and energy
efficiency during the entire period of the year. In particular, as the outside temperature
increases the system delivery temperature decreases according to a specific "compen-
sation curve".
With Sliding Temperature adjustment, the temperature set with the heating buttons (de-
tails 3 and 4 - fig. 1) becomes the maximum system delivery temperature. It is advisable
to set a maximum value to allow system adjustment throughout its useful operating
range.
The boiler must be adjusted at the time of installation by qualified personnel. Adjust-
ments can in any case be made by the user to improve comfort.
Compensation curve and curve offset
Press the mode button (detail 10 - fig. 1) once to display the actual compensation curve
(fig. 11) which can be modified with the DHW buttons (details 1 and 2 - fig. 1).
Adjust the required curve from 1 to 10 according to the characteristic (fig. 13).
By setting the curve to 0, sliding temperature adjustment is disabled.
fig. 11 - Compensation curve
Press the heating buttons (details 3 and 4 - fig. 1) to access parallel curve offset
(fig. 14), modifiable with the DHW buttons (details 1 and 2 - fig. 1).
fig. 12 - Curve parallel offset
Press the mode button (detail 10 - fig. 1) again to exit the parallel curve adjustment
mode.
fig. 10
EN 23