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9.2.- Functioning with a Sanit hot water tank
The TRO Evolution System boiler may be installed together with a hot water tank from the
TRIANCO Sanit range, to obtain domestic hot water. For correct installation of the tank,
carefully follow the instructions given in the “Installation Instructions” section of this manual.
In this mode, select the desired DHW setpoint temperature (see "Selecting the DHW setpoint
temperature"). The burner and the DHW pump will switch on. When the hot water tank
reaches the selected DHW setpoint temperature, it is ready to heat up the heating
installation if it is enabled, starting up the heating pump and switching off the DHW pump.
The burner will shut down when the boiler reaches its selected setpoint temperature. The
heating pump will stop when the room temperature reaches or exceeds the temperature set
on the installation’s room thermostat (if it has one).
If you wish, you may totally disable the domestic hot water production function by selecting
"OFF" as the DHW setpoint temperature.
9.3.- Heating circuit 2 functioning (Optional)
All the models in the TRO Evolution System range of boilers have the option of controlling a
second heating circuit. This requires the installation of a second circulation pump on the
boiler. To correctly install this pump, carefully follow the instructions given in the “Installing
heating circuit 2” section of this manual.
Heating circuit 2 will work with the selected boiler setpoint temperature (see “Selecting the
boiler setpoint temperature” ) and the temperature of room thermostat 2 (TA2) (if the boiler
has one). The burner and the heating pump of circuit 2 (BC
2
) will begin to function until the
installation reaches the selected boiler setpoint temperature (or the temperature on room
thermostat 2, if the unit has one). When the temperature of the installation drops below the
selected boiler temperature, the burner will start up again, running the heating cycle.
NOTE: When the heating function is disabled, if OFF is selected circuit 2 will also be disabled.
9.4.- Operation with an SRHFC2/EV Underfloor Heating Kit (Optional)
The TRO Evolution System boiler may be used with an SRHFC2/EV Underfloor Heating Kit
(fitted to heating circuit 1). This kit basically consists of a motorised 3-way mixing valve, a
circulation pump and an underfloor heating installation flow temperature sensor. For correct
hydraulic installation, carefully follow the assembly and connection instructions enclosed with
the kit.
The underfloor heating installation is worked by the electronic boiler control. The installation
flow sensor is used to adjust the temperature, selecting the installation flow setpoint
temperature using the boiler setpoint adjustment touch button on the control panel,
between OFF, 0 and 45 ºC (see “Selecting the Underfloor Heating flow setpoint
temperature”). In this operating mode, the electronic control sets the boiler setpoint
temperature to 75ºC by default, and the installation flow temperature can be adjusted to
the selected setpoint temperature using the mixing valve.
The boiler setpoint temperature can be changed using the MODE touch button to browse to
the “boiler temperature setpoint" display option. When the display shows this option, touch
the "+ /-" symbols to select the desired temperature.
If you wish, the SRHFC2/EV Underfloor Heating circuit function can be totally disabled, by
selecting ""OFF" as the installation flow setpoint temperature.
NOTE: When the Underfloor Heating circuit function is disabled by selecting OFF as the
setpoint temperature, only circuit 1 will be disabled. Circuit 2 will continue to function.
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