1592015820 User manual IC260_261L_D DUO FW1.9 rel. 1.0
Pag. 112 of 149
Restart
Reset procedure in Menu function
Always manual AL54 = 0
Always automatic AL54 =16
From manual to utomatic if AL54 value is between 1 and 15
Symbol
On the display the symbol
is blinking
Action
Alarm Relay + and buzzer on
Regulation
Condensing fan
If FA02=0 the fan is forced at maximum speed for 60 seconds then switched
off
If FA02=1 the fan is forced at maximum speed for 60 seconds then regulate
according to normal fan regulation
b1lp - b2lp Low temperature / Low Condensing pressure of the Circuit
Label on alarm
visualization menu
b1lP
(low pressure digital input of the circuit 1)
b2lP
(low pressure digital input of the circuit 2)
Origin
When the condensing probe value is lower than AL03 setpoint if:
In chiller or heat pump
Stand-by o remote OFF when AL08 = 1
In defrost when AL06=1
The alarm is not signalled if:
In defrost ,for the time AL07, when the 4-way valve is turned on.
For the time set in AL01 after turning on the compressor.
Reset
When the condensing probe temperature is higher than AL03 + AL04
(differential)
Restart
Automatic– Manual after AL05 events per hour (Reset procedure in Menu
function).
Symbol
On the display the symbol
is blinking
Action
Alarm Relay + and buzzer on
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.
