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60T - 280T
COSMOGAS
4.1 - Operation and intended use
4.1.1 - MYDENS boiler operation and
intended use
The MYDENS product is a gas condensing boiler, designed
for the production of central heating. It can also be used for
the production of domestic hot water but must be connected
to an appropriate storage tank (see figure 10-2). Any other
use is forbidden.
The maximum power for domestic hot water service is always
guaranteed in that the boiler gives priority to that service.
Follow the procedure given in section 17.6 to adjust the
domestic hot water temperature
The central heating system can be made with heating
elements operating in a temperature range of 30°C to 80°C
The boiler can be connected to a room thermostat, an external
sensor or a 0-10 VDC analogue input.
This boiler must be connected to a central heating and
domestic hot water production system with power demanded
that is compatible with the characteristics of the boiler itself.
Figure 4-5 - Modulation of model 280T boiler
4.1.2 - AGUADENS hot water heater
operation and intended use
The AGUADENS product is a condensing gas boiler which
must be connected to a storage tank for the production of
domestic hot water (see figure 11-1).
Any other use is forbidden.
4.1.3 - Wide modulation range and
maximum efficiency
Depending on the load demanded by the system, the boiler’s
management program can gradually switch on each individual
heating element at minimum power (see figure 4-5). After
which, if the load demanded by the system increases, all the
heating elements gradually increase the power delivered.
In this way modulated power from a minimum of 14 kW to a
maximum that corresponds to the architecture of the boiler can
be obtained (figure 4-5 shows a 280T module with 4 heating
elements), with consequent maintaining of maximum efficiency
throughout the whole range of modulation.
When the boiler is connected to an external sensor, it always
works at maximum efficiency (see section 17.9).
4 - OPERATION