46
FAULT/ERROR FINDING
Several checks are included to protect the boiler and its environment. In case of error condition, the
error code is flashed on the LCD display (Table 7), Burner LED shows failure indication (it turns
RED
) and heat demands will be disabled.
Error conditions can be divided in 2 groups: lockout conditions and blocking conditions.
a) Lockout conditions
, Lockout flue gas overtemperature, Lockout boiler overtemperature, No
flame signal, Flame loss, Flame simulation, Failure flow-return supervision, Failure gas valve
circuit V1/V2, and Failure fan speed can only be cleared by pressing the reset push-button, then
display panel will be in stand-by mode. If the problem continues, call qualified service. While in
lockout conditions, Burner LED will turn
RED
.
b) Blocking conditions
, Boiler overtemperature, Failure CH flow sensor (NTC), Failure flue gas
sensor (NTC), Failure DHW tank sensor (NTC), Failure CH return sensor (NTC), Failure power
supply, and Failure water pressure, will reset as soon as the cause of the problem disappears. For
example, when CH water pressure is out of operating range, blocking condition will be generated
and keep the system off until the pressure is within operating range again.
Summary of Contents for Confeo Premix CP 24 HST
Page 10: ...9 fig 1 agram...
Page 12: ...11 b a...
Page 19: ...18 fig 9...
Page 20: ...19 fig 10 7 B for CP 24 HM P 4 m for CP 30 HM P and 5 m for CP 35 HM P models...
Page 21: ...20 fig 11...
Page 22: ...21 h fig 13 a...
Page 23: ...22 fig 13...
Page 24: ...23 fig 14...
Page 25: ...24 fig 15...
Page 41: ...41 a Flow Adjusment b Offset Adjustment fig 30 fig 31...
