57
60T - 280T
COSMOGAS
16 - USE
16.
8
- Climatic adjustment
Adjust parameter
2003
to
1
using the “Installer menu”.
The heating supply temperature is related to the external
temperature sensor according to the algorithm refered to in
figure 16-2. To adapt the calculation line to the various rooms/
climatic conditions, all the adjustment parameters must be set
according to the following sections.
16.
8
.1 - Climatic adjustment: setting the
parameters
Through the “Installer menu” (see section 16.15), set:
-
2020
= “External heating switch-off temperature”,
adjustable between 0 and 35°C. When the external
temperature reaches the value set in this parameter, the
heating switches off automatically. When the external
temperature drops below that value again, the heating
automatically switches back on. The recommended start
value is 22°C.
-
2021
= “External design temperature (winter)”,
adjustable between -20 and 5°C. This is the external design
temperature used to define the output heat the system
requires. The recommended start value for a typical home
is -5°C;
-
2022
= “Supply temperature corresponding to the external
design temperature (winter)”, adjustable between 0 and
80°C. The supply temperature takes on the value set in
this parameter when the external temperature correspond
with what is set in parameter
2021
. The recommended
start values are: 40°C for low temperature systems (floor
heating); 70°C for high temperature systems (radiators);
-
2023
= “Spring external temperature”, adjustable
between 0 and 30°C. This is the external temperature at
which you wish the heating to reach its minimum supply
temperature. The recommended start value is 18°C.
-
2024
= “Supply temperature corresponding to spring
external temperature”, adjustable between 0 and 40°C. The
supply temperature takes on the value set in this parameter
when the external temperature correspond with what is set
in parameter
2023
. The recommended start values are:
30°C for low temperature systems (floor heating); 42°C for
high temperature systems (radiators);
- In addition, you can set the minimum and maximum heating
temperature, using respective parameters
3016
and
3015
in section 19.
If, for some reason, the heating service does not correspond
to the load, using parameters
2022
(Supply temperature
corresponding to the external design temperature (winter)),
you can raise or lower the calculated temperature and match
the desired room temperature.
16.
8
.2 - Climatic adjustment: switching the
heating system on and off
The climatic adjustment service is completely automatic, even
as far as switching off at the end of the season and reignition
at the beginning of the season is concerned, via parameter
2020
. When the external temperature exceeds the value
set in this parameter, the heating switches off automatically.
When the external temperature drops below the value set in
this parameter, the heating switches back on automatically.
16.
9
- Timing of the various functions
To protect the lifespan of the appliance, improve the comfort
generated and increase energy savings, timers were put in
during operation. These timers are:
- Pump post-circulation: every time the room thermostat
detects the end of a heating service, the pump continues
to work for 4 minutes;
- Pump anti-lock: every 24 hours, the heating pump and the
domestic hot water pump (if present) are forced;
- Ignition delay: In all operating modes, every time the burner
switches off, it waits 3 minutes before switching back on.
16.1
0
- Pump anti-locking
During the summertime, the circulator switches on once
every 24 hours for 15 seconds to prevent any limescale
build-ups from clogging it. At the same time, the diverter
valve and the hot water tank pump (if present) are activated
for the same reason.
16.1
1
- Antifreeze protection
ATTENTION !!!
In order for the antifreeze protection to be effective, the
appliance must be left with the power and gas supply
on and the two services (domestic water and heating)
in the
OFF
position.
ATTENTION !!!
The antifreeze protection provided by the appliance
cannot ensure antifreeze protection for the heating
system, the domestic water system, nor for the building
being served or parts of it.
Once the boiler temperature of 10°C is reached, the heating
pump automatically switches on. If the temperature drops
further below 5°C, the burner also switches on in order to
protect the appliance from the effects of frost.
If you do not use the appliance for a long period of time (over
a year), we recommend draining it, following the procedure
in section 17.10.
16.1
2
- Energy Saving
To reduce display energy consumption (figure 16-1), it switches
off automatically 5 minutes after the last operation done. You
can disable this function or edit the time via parameter
2100
in the “installer menu” (section 16.15). If you set the parameter
to
0
, the display will remain on constantly.
