27
hours of functioning to be programmed (chronothermostat), it can adapt the heating system to the
hours of use of the installation.
9.7
Disconnecting the oil-fired boiler’s back-up energy supply
The
Evolution Solar HDX
boiler’s electronic control allows the oil-fired boiler’s function as an
auxiliary power source backing the solar energy to be disconnected, so that the only hot water
produced by the boiler will be that obtained from the solar energy of the installation site, with only
the solar circuit functioning. To disconnect the oil-fired boiler’s back-up energy supply, select the
"
OFF
" as the DHW setpoint temperature (see "
Selecting the DHW setpoint temperature of the back-
up hot water tank
").
9.8
Disconnecting the solar circuit
The
Evolution Solar HDX
boiler’s electronic control enables the solar circuit functioning to be
disconnected, if this should be required for maintenance or start-up. If the solar circuit functioning
is disconnected, the boiler will work as a standard oil-fired storage heating and hot water boiler,
and will not use the solar energy from the site where it is installed.
To disconnect the solar circuit, firstly disconnect the "
Si
" and "
Scol
" sensors from the sensor
terminal strip
J3
("Si": terminals 19-21, and "Scol": terminals 17-18), and fit electrical bridges in their
place, shorting the inputs of these sensors (see “Electrical Con
nection Diagram
").
9.9
Keypad block function
This function protects the control panel from being accidentally or erroneously pressed while it is
being cleaned, by children or by unauthorised persons. When this function is enabled, the
electronic control will not react when any of the symbols or touch buttons on the control panel are
pressed.
To lock the keypad, keep your finger on the RESET touch
button for 5 seconds. The word "
LOC
" will flash on the display
until the control panel is unlocked again.
To unlock the keypad, place your finger on the RESET touch
button again for 5 seconds. The display will then return to its
normal status.
10
E20 REMOTE CONTROL (OPTIONAL)
A remote control (E20) can optionally be supplied together with the
Evolution Solar HDX
boiler. This
remote control can be used to fully operate the boiler from any room in the home in which it is
installed. The E20 remote control governs the settings of heating circuit 1 and the installation’s
domestic hot water production (where the case may be).
This remote control allows the hours of home comfort to be programmed for heating circuit 1,
adjusting the installation to the particular requirements of the home by measuring the room
temperature and consequently adapting the installation temperature. The remote control can also be
used to adjust the DHW and heating setpoint temperatures at any time, and for viewing the different
boiler operation settings. It also warns of any functioning anomalies affecting the boiler.
The E20 remote control may optionally be connected to an external sensor, for measuring the outside
temperature. When this option is installed, the remote control can adjust the home comfort level
(circuit 1) according to the weather conditions at each particular time, optimising fuel consumption
and heating comfort in the home.
