65
Step
Function
0
pause, no heat required
1
pre-ventilation
2
ignition
3
burner ignited (heating system mode)
4
burner ignited (hot water mode)
5
air pressure switch control
6
burner off (water temp. more than 5
°
C warmer than setting)
7
post-circulation pump in heating mode
8
post-circulation pump in hot water mode
9
burner off because of fault (see shutdown code)
During boiler operation the first figure on the digital display indicates the sequence step while the second gives
the temperature of the water in the boiler.
E.g.
means that the unit is heating at a delivery temperature of around 80
°
C.
1
a
FIGURE
2
a
FIGURE
OPERATING SEQUENCE (display only)
Button
Function
ON/OFF
ON/OFF SWITCH
SUMMER/WINTER SWITCH
RIARMO/RESET
BOILER RESET
PROG./MODE
PROGRAM SELECTOR
(DISPLAY)
Button
Function
SEQUENZA/STEP
SELECTS PARAMETERS TO BE
DISPLAYED
MEMO/STORE
ENTERS DATA
+
INCREASES SETTING
-
DECREASES SETTING
