COSMOGAS MYDENS, Инструкция по установке, эксплуатации и обслуживанию

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MYDENS
COSMOGAS
7.8 - Adjusting the instantaneous
domestic hot water
The temperature of the domestic hot water is adjusted by
operating on the
and keys. On pressing one
of the two keys, the visual display “N” in figure 7.1 will start to
flash and show the temperature that is being set. The range
of adjustment for the temperature of the domestic hot water
goes from 40°C to 60°C or from 40°C to 70°C if there is a
indirect water heater present.
By holding the
key down also below 40°C,
OFF
will
appear to indicate switch-off of the domestic hot water service,
also highlighted by switch-off of the icon “F” in figure 7.1.
7.9 - Central Heating
Using the parameter
2003
present in the “Installer menu”
(see chapter 7.18) it is possible to select different operating
modes of the central heating service:
-
2003
=
00
; “Thermostatic adjustment”: the central heating
supply temperature is adjusted manually via the
or keys . The opening and closing of the room
thermostat stops or starts the boiler pump correspondingly
in order to adjust the room temperature;
-
2003
=
01
; “Climatic adjustment”: The icon appears on
the display , the supply temperature to central heating is
adjusted automatically by the external temperature sensor
according to the algorithm corresponding to Figure 7.3.
The opening and closing of the room thermostat stops or
starts the boiler pump correspondingly. When the external
temperature rises above the value set in parameter
2020
(Central heating switch-off external temperature), the
central heating service ends. It re-starts automatically when
the external temperature drops below the temperature set
in the parameter
2020
again.
-
2003
=
02
; “Climatic adjustment with room compensation”:
The icon appears on the display, the supply
temperature to central heating is adjusted automatically by
the external temperature sensor according to the algorithm
corresponding to Figure 7.3. The opening of the room
thermostat reduces the temperature if the supply to central
heating by a value set in the parameter
2027
The boiler
pump operates constantly. When the external temperature
rises above the value set in parameter
2020
(forced
central heating switch-off), the central heating service ends.
It re-starts automatically when the external temperature
drops below the temperature set in the parameter
2020
again (forced central heating switch-off).
7.10 - Thermostatic adjustment
In the factory the boiler is adjusted with the parameter
2003
to
00
, i.e. the boiler supplies hot water to the central heating
plant at a temperature adjusted using the or
keys. Any room thermostat operates directly on the pump
inside the boiler to adjust the heating of the rooms.
To make full use of boiler performance, it is recommended
to adjust the temperature to a value just sufficient to obtain
the temperature desired by the rooms. If the season gets
colder, progressively increase the value of the central heating
temperature. Proceed in reverse order when the season goes
towards warmer temperatures.
This very simple operating method is suitable for the following
types of plants:
- small plants, with radiators, having a room whose temperature
is characteristic of all other rooms;
- large plants, with radiators, where each area is controlled
by its own room thermostat and the boiler pump is stopped
only when all area thermostats are satisfied (envision the
appropriate electric plant).
- large plants, with radiant panels (low temperature), where
each area is controlled by its own room thermostat and the
boiler pump is stopped only when all area thermostats are
satisfied (envision the appropriate electric plant).
7.11 - Climatic adjustment
Using the “Installer menu” adjust the parameter
2003
to
01
. The central heating supply temperature is reported to
the external temperature sensor according to the algorithm in
figure 7.3. To adapt the calculation line to the various hones/
climatic conditions, all adjustment parameters must be set
according to the following chapters.
7.11.1 - Climatic adjustment: on which
plants?
The “Climatic adjustment” is a more sophisticated and precise
adjustment than the “Thermostatic adjustment”. This can make
the most use of the boiler performance and is suitable for the
following types of plant:
- small plants, with radiators, having a room whose temperature
is characteristic of all other rooms. The room thermostat
makes the appropriate corrections to the room temperature
by switching the boiler pump on and off.
- large plants, with radiators, where each area is controlled
by its own room thermostat and the boiler pump is stopped
only when all area thermostats are satisfied (envision the
appropriate electric plant).
- small plants, with radiant panels (low temperature), having a
room whose temperature is characteristic of all other rooms.
The room thermostat makes the appropriate corrections
to the room temperature by switching the boiler pump on
and off.
- large plants, with radiant panels (low temperature), where
each area is controlled by its own room thermostat and the
boiler pump is stopped only when all area thermostats are
satisfied (envision the appropriate electric plant).
7 - USE