Morco FEB-24ED - Page 52

Description of functioning
technical
56
START SEQUENCE
Heating Temp.< DHW
Set Point + 20ºC?
DHW MODULATION:
Keep the temperature at
selected value by user
Heating Temp. = 85ºC
Mod
. to mantain Heating Temperature to
85ºC (if DHW Temp.<DHW Set Point)
DHW Temp. <DHW Set point - 4º C?
DHW Temp. <DHW Set point (45 sec.)?
ON-OFF MODULATION
Dwh Temp.<DHW Set point + 4ºC (15 sec)?
or DHW Temp.<DHW Set point +8ºC?
DHW Temp.= DHW Set Point?
HEATING DEMAND?
Heating Temp. = 102ºC?
LOCK OUT F-4
PUMP 1MIN.ON
FAN OFF
BURNER OFF
END OF
DHW
DEMAND
HEATING
MODULATION
FAN 5 SEC. ON
PUMP OFF
BURNER OFF
PUMP
CYCLING ON
Heating Temp.< 92ºC?
FAN ON
PUMP ON (10sg)-OFF (1sg)
BURNER OFF
PUMP ON
BURNER OFF
Heating Temp.> 88ºC?
Heating Temp.> 92ºC?
Heating thermistor
in range?
MODULATION:
DHW Temperature
regulated by Heating
temperature = DHW Set
Point + 10ºC
Is there F-11?
DHW Service: FEB-24ED
50
YES
YES
YES
YES
YES
YES
YES
NO
YES
NO
YES
YES
YES