EN • 28
ENGLISHFRANCAISNEDERLANDSESPAÑOLITALIANODEUTSCH
664Y2800.B
ERROR MODE [with code]
ERROR mode indicates the most recent error, as well as the status
of the boiler and its readings at the time this error occurred.
Key Screen
MODE
COMMUNICATION MODE [with code]
When in this mode, the system displays the communication
between the boiler and the control module, the optional interface
kit or the optional programmable room thermostat.
Key Screen
MODE
Key Screen
Description of
parameters
STEP
Code error of the last lock-out
STEP
Status of the boiler at the time
of the error
STEP
Temperature T1 at the time
of the error
STEP
Temperature T2 at the time
of the error
STEP
Hot water temperature T3 at
the time of the error
STEP
Outdoor temperature T4 at the
time of the error
Key Screen
Description of
parameters
STEP
No communication
Communication between the
boiler module and the optional
control modules only
Communication between all the
devices connected
Key Screen
Description of
parameters
MODE
Fan speed
STEP
The current fan speed is
5.500 rpm.
FAN MODE [with code]
MCBA PARAMETERS FOR THE SPECIALIST