Selecting The Underfloor Heating Flow Setpoint Temperature (With Srhfc2/ Ev Kit Option); Operation; Functioning In "Heating Only" Mode - Trianco TRO Evolution System Series Installation And Operating Instructions Manual

8.3.- Selecting the Underfloor Heating flow setpoint temperature (with SRHFC2/ EV kit
option)
When the boiler is installed with the optional SRHFC2/EV underfloor heating kit, the desired
flow temperature of the installation can be selected using the touch button as shown in the
figure above. To select the desired temperature, touch the "+" or "-" symbols to increase or
decrease the temperature respectively. When the temperature has been selected, the
display will return to standby mode after a few seconds.
The installation flow setpoint temperature can also be selected by using the MODE touch
button to browse to the "underfloor heating installation flow setpoint" display option. When
this option appears on the display, touch the "+ /-" symbols to select the desired
temperature.
If you wish to disable the underfloor heating circuit function, select the setpoint value "OFF"
by touching the "-" symbol until this value appears on the display.
The flow setpoint temperature range permitted is OFF and 0 - 45ºC. To obtain optimum
performance from the underfloor heating system installed, we recommend selecting a
setpoint temperature of 25 - 35 ºC, providing this is permitted by the heating system installed
and the insulation in your home.

9.- OPERATION

The TRO Evolution System boiler is supplied in "heating only" mode by default, designed only to
heat up a heating installation (heating circuit 1). Optionally, a Domestic Hot Water tank (Sanit)
and/or an Underfloor Heating Kit (SRHFC2/EV) and/or a second heating circuit, heating circuit
2, may be connected to the installation to improve its performance.

9.1.- Functioning in "Heating Only" mode

In this mode, select the desired boiler setpoint temperature (see "Selecting the boiler setpoint
temperature") and the temperature of room thermostat 1 (TA1) or remote control E20 (if the
boiler is equipped with these). The burner and the heating pump of circuit 1 (BC
to function until the installation reaches the selected boiler setpoint temperature (or the
temperature on room thermostat, 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.
The boiler heating function can be totally disabled (Summer mode) by selecting "OFF" as the
boiler setpoint value. In this operating mode, only the DHW production function will remain
enabled, providing there is a DHW tank connected to the boiler.
NOTE: When the heating function is disabled, circuit 2 will also be disabled if it is connected.
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