To relight the boiler, press the button
The boiler will be immediately ready to operate whenever domestic hot water is drawn (with optional hot water tank in-
stalled) or in case of a room thermostat demand.
To completely disconnect the power to the unit, press the button detail 14 fig. 1.
B
The antifreeze system does not work when the power and/or gas to the unit are turned off. To avoid damage
caused by freezing during long idle periods in winter, it is advisable to drain all water from the boiler, DHW
circuit and system; or drain just the DHW circuit and add a suitable antifreeze to the heating system, complying
with that prescribed in sec. 2.3.
1.4 Adjustments
Summer/Winter changeover
Press the button
The display activates the Summer symbol detail 10 - fig. 1. The heating function is deactivated, whereas the possible
production of domestic hot water (with optional external hot water tank) remains activated. The antifreeze system re-
mains activated.
To deactivate Summer mode, press the button
Heating temperature adjustment
Operate the heating buttons
54
(detail 7 fig. 1) again for 5 seconds.
detail 6 - fig. 1 for 1 second.
(details 3 and 4 - fig. 1) to adjust the temperature from a min. of 20 °C to a max. of 90 °C.
cod. 3540H322 - 09/2008 (Rev. 01)
Reply 51 - 71 - 101
eco
reset
comfort
fig. 6
eco
reset
comfort
fig. 7
(detail 6 - fig. 1) again for 1 second.
eco
reset
comfort
fig. 8
EN