COSMOGAS NOVADENS 24, User Manual

7

3 - USE

Figure 3 - Parameters within the “Users’ Menu”

“USERS’ MENU”

Adjustment of the gradient of the line as per  figu-
re 4. Visible only with climatic adjustment active.
(See installation and instruction manual).

Adjustment of  “Minimum heating temperature”.
Visible only with climatic adjustment active. (See
installation and instruction manual).

Adjustment of “Maximum heating temperature”.
Visible only with climatic adjustment active. (See
installation and instruction manual).

Adjustment of the parallelism “b” of the line as per
figure 4. Visible only with climatic adjustment
active. (See installation and instruction manual).

Display of calculated heating temperature (if
climatic adjustment active) or display of tempera-
ture set via the control “7” as per figure 1.

Display of domestic hot water temperature set via
the control “11” as per figure 1.

Display of last error registered.

Display of last block which occurred.

Setting range: 0.1-5.0

Setting range: 20°C-60°C for radiant panels, 30°C - 60°C
for radiators.

Setting range: 45°C for radiant panels, 80°C for radiators.

Only display. The regulation is carried out using the control
“7” as per figure 1. It can adopt values ranging between -
10°C and +10°C

Only display. It can adopt values ranging between 20°C
and 80°C

Only display. It can adopt values ranging between 40°C
and 70°C

Only display. It can adopt the values indicated in the

installation and maintenance manual

Only display. It can adopt the values indicated in the

installation and maintenance manual

PARAMETER     DESCRIPTION

                                 INFORMATION ON DISPLAY “2”

3.7 - Summer mode

To disable the heating functions for a
prolonged period, leaving only the
domestic hot water function, switch the
heating temperature to minimum, until the
wording OFF appears, by turning knob  “7”
of figure 1.

3.8 - Winter mode

In Winter mode, by means of the pump ,
the boiler sends the water to the system
at the temperature set using knob “7” of
figure 1.
When the temperature inside the boiler
reaches the temperature set, the burner
starts to modulate the flame so as to
reduce the output to a minimum. If the
temperature rises further, the burner shuts
down.
Simultaneously, the pump which sends
the water to the system is switched on
and off by the room thermostat. This can
be noted, because indicator “6” of figure
1 switches on and off in correspondence

with the on and off of the pump.
At first the pump may make a noise. This
is due to the presence of residual air in
the hydraulic system which will soon
disappear on its own.
We recommend keeping the temperature
set using knob “7” at the point shown by
the symbols on the panel for a rational
use of the boiler. If it is a particularly cold
Winter and it is difficult to maintain the
desired temperature, turn knob “7” to
gradually higher values.

3.9 - Adjusting the
heating temperature

To set the heating temperature, turn
control knob “7” of figure 1. As soon as
the knob is touched, 

 will blink on

display and the temperature being set will
appear on display “2”. As a rule,  it is
sufficient to turn control knob “7” to the
half-way position. If it is a particularly cold
Winter, progressively increase the
temperature by rotating control “/”.

3.10 - Adjusting the
heating temperature
with climatic
adjustment

The adjustment of the heating
temperature, in the event that climatic
adjustment has been set, is carried out
by turning control  “7” as per figure 1. As
soon as the control is touched, display

“1” show a flashing 

 and display “2”

shows the value in °C of translation on a
parallel with the adjustment curve (see
figure 4, detail “b”. As a rule, it is sufficient
to adjust control “7” to the half-way
position. If the Winter is particularly rigid,
progressively increase the temperature
using control “7” until the temperature
inside the rooms is satisfactory. If the
comfort produced by the climatic
adjustment is not satisfactory (too hot,
too cold, room temperature not constant)