Baxi Nuvola 3 Comfort Operating And Installation Instructions page 5

4 different boiler modulation levels are shown on the climate con-
troller display during boiler operation, as indicated in figure 2.
3.2 DESCRIPTION OF BUTTON
Press this button to set the following boiler operating modes:
• SUMMER
• WINTER
• HEATING ONLY
• OFF
In SUMMER mode, the display shows
frost protection function active).
In WINTER mode, the display shows
function active).
In HEATING ONLY mode, the display shows
ction active).
In OFF mode, the display shows neither of the above two symbols (
is enabled, any other request for DHW or heating is not satisfied.
3.3 DESCRIPTION OF BUTTON
Press this button to set one of the following heating functions:
AUTOMATIC-MANUAL-OFF as described below.
AUTOMATIC (symbol displayed
This function enables hourly boiler programming in the heating mode. Heat demand depends on the hourly programming setting (ambient
temperature COMFORT " " or ambient temperature ECONOMY " " See section 3.6 for hourly programming settings.
MANUAL (symbol displayed )
This function disables hourly programming and the boiler works in the heating mode at the ambient temperature set by pressing +/-
OFF (symbol displayed )
If the climate controller is set to "Off", the display shows the symbol
freeze function remains active).
INSTRUCTIONS FOR USERS
3.1 MEANING OF THE
(SUMMER - WINTER - HEATING ONLY - OFF)
. The boiler satisfies requests for DHW only while central heating is NOT enabled (ambient
The boiler satisfies requests for both DHW and central heating (ambient frost protection
The boiler satisfies requests for central heating only (ambient frost protection fun-
)
5
SYMBOL
Figure 2
) ( ) In this mode only the ambient frost protection function
(AUTOMATIC-MANUAL-OFF)
and operation in the heating mode is disabled (the ambient anti-
.
C607215 - GB