1592015820 User manual IC260_261L_D DUO FW1.9 rel. 1.0
Pag. 122 of 149
ALSF
Phase sequence alarm
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
AEE
Eeprom alarm
Yes
Yes
Yes
Yes
Yes
ACF1
ACF12
Configuration alarm
Yes
Yes
Yes
Yes
Yes
ArtF
Faulty clock
ArtC
Clock error
AEUn
Unloading signalling from high
temp. of evaporator water
ALti
Low evaporator inlet temperature
in air/air unit
AEht
High water temperature inlat
evaporator
Yes
ALC1
General alarm
Yes
Yes
Yes
Yes
Yes
Yes
ALC2
Genearl alarm type 2
Yes
(3)
Yes
(3)
Yes
(3)
Yes
(3)
Yes
(3)
Yes
(3)
(1) = if the probe is the regulation probe
(2) = with probe configured as auxiliary relay control
(3) =
with manual alarm procedure
(4) = Off compressors with only 1 water pump configured or with 2 pumps but both in alarm from the corresponding digital inputs.
(5) = Boiler heaters off with only 1 water pump configured or with 2 pumps but both in alarm from the corresponding digital inputs (in this case the boiler heaters
are on only with thermoregulation anti-freeze setpoint as evaporator protection function)
(6) Compressors switched off in case of only production of sanitary hot water
49.2 Alarm: Circuit Alarm
Alarm
Code
Alarm description
Compressors
of the circuit
(n)
Compressors
of the other
circuit
Fan condensing of
the circuit (n)
Fan condensing
of the other
circuit
b(n)HP
High pressure switch of the circuit
(n)
Yes
Yes after 60 seconds
b(n)LP
Low pressure switch of the circuit
(n)
Yes
Yes
b(n)AC
Anti-freeze in chiller of the circuit
(n)
Yes
Yes
b(n)AH
Anti-freeze in heat pump of the circuit
(n)
Yes
Yes
b(n)hP
High condensing pressure of the circuit
(n)
Yes
Yes after 60 seconds
b(n)hP
High condensing temperature from NTC of the circuit
(n)
Yes
Yes after 60 seconds
b(n)LP
Low condensing pressure - (evaporating with low pressure transducer)
with transducer of the circuit of the
(n)
Yes
Yes
b(n)lP
Low condensing temperature NTC circuit
(n)
Yes
Yes
b(n)tF
Fan overload circuit
(n)
Yes
Yes
