5
C607215 - GB
INSTRUCTIONS FOR USERS
4 different boiler modulation levels are shown on the climate con-
troller display during boiler operation, as indicated in figure 2.
0605_1802
Figure 2
Press this button to set the following boiler operating modes:
• SUMMER
• WINTER
• HEATING ONLY
• OFF
In
SUMMER
mode, the display shows
. The boiler satisfies requests for DHW only while central heating is NOT enabled (ambient
frost protection function active).
In
WINTER
mode, the display shows
The boiler satisfies requests for both DHW and central heating (ambient frost protection
function active).
In
HEATING ONLY
mode, the display shows
The boiler satisfies requests for central heating only (ambient frost protection fun-
ction active).
In
OFF
mode, the display shows neither of the above two symbols (
) (
) In this mode only the ambient frost protection function
is enabled, any other request for DHW or heating is not satisfied.
3.2 DESCRIPTION OF BUTTON
(SUMMER - WINTER - HEATING ONLY - OFF)
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
and operation in the heating mode is disabled (the ambient anti-
freeze function remains active).
3.3 DESCRIPTION OF BUTTON
(AUTOMATIC-MANUAL-OFF)
3.1 MEANING OF THE SYMBOL
