Emerson Dixell iChill IC207D - b1 AC - b2 AC - b1 Ac - b2 Ac Antifreeze alarm; Low outlet temperature (Air; Air unit in Chiller mode); b1 AH - b2 AH Anti-freeze alarm; Low outlet air temperaure(Air;Air unit only) on heat pump mode

1592015610 User manual IC200D EVO GB rel1.0 10.11.2015_rev10 IC200D 122/192
Restart
Automatic
Symbol
blinking
Action
Alarm relay + buzzer ON
Regulation
Loads
OFF it the remote terminal has internal probe and it is the regulation probe
b1AC - b2AC - b1Ac - b2Ac Antifreeze alarm / Low outlet temperature (Air / Air unit in Chiller
mode)
Label on alarm
visualization menu
b1AC (anti-freeze alarm of the circuit #1 in chiller)
b2AC (anti-freeze alarm of the circuit #2 in chiller)
b1Ac (anti-freeze alarm signalling of the circuit #1 in chiller)
b2Ac (anti-freeze alarm signalling of the circuit #2 in chiller)
Both the labels are displayed when the alarm is coming from the evaporator
inlet probe or evaporator common outlet probe or when there is only one digital
input configured.
Origin
Normal conditions, stand-by, remote OFF: when the anti-freeze probe value is
lower than AL26 for AL28 seconds.
With the anti-freeze digital input is active.
Reset
When the anti-freeze probe value is higher than A26+ AL27(differential)
With the anti-freeze digital input is active.
Restart
Automatic – Manual after AL29 events per hours (Reset procedure in Menu
function).
If AL74=1 to reset the alarm is necessary to type the password
Symbol
On the display the symbol is blinking
Action
If AL30=0 only the compressors are turned off and than display shows b1Ac
b2Ac, the buzzer and the alarm relay are not activated.
If AL30=0 only the compressors are turned off and than display shows b1Ac
b2Ac, the buzzer and the alarm relay are activated.
If the alarm comes from the digital input also the anti-freeze heaters are turned
on.
b1AH - b2AH Anti-freeze alarm / Low outlet air temperaure(Air/Air unit only) on heat pump
mode
Label on alarm
visualization menu
b1AH (anti-freeze alarm of the circuit #1 in heat pump)
b2AH (anti-freeze alarm of the circuit #2 in heat pump)
b1Ah (anti-freeze alarm signalling of the circuit #1 in heat pump)
b2Ah (anti-freeze alarm signalling of the circuit #2 in heat pump)
Both the labels are displayed when the alarm is coming from the evaporator
inlet probe or evaporator common outlet probe or when there is only one digital
input configured.
Origin
Normal conditions, stand-by, remote OFF: when the anti-freeze probe value is
lower than AL33 for AL36 seconds.
With the anti-freeze digital input is active.
Reset
When the anti-freeze probe value is higher than AL33 + AL34.
With digital input ont active
Restart
Automatic – Manual after AL37 events per hour (Reset procedure in Menu
function).
If AL74=1 to reset the alarm is necessary to type the password
Symbol
On the display the symbol is blinking
Action
If AL38=0 only the compressors are turned off and than display shows b1Ah -
b2Ah, the buzzer and the alarm relay are not activated.
If AL38=0 only the compressors are turned off and than display shows b1AH -
b2AH, the buzzer and the alarm relay are activated.
If the alarm comes from the digital input also the anti-freeze heaters are turned
on.