1592015820 User manual IC260_261L_D DUO FW1.9 rel. 1.0
Pag. 102 of 149
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when the number of the event is < AL20 to reset the alarm follow the procedure described in Cap.
39.2
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when the number of the event is = AL20 to reset the alarm follow the procedure described in Cap.
39.3 (a password is necessary to reset the alarm)
If the cause of alarm is already present, the display shows “Active” and it is not possible to reset the alarm.
If the cause of alarm is not present, the display shows “Reset” and it is possible to reset the alarm.
AP1 - AP2 - AP3 - AP4 - AP5 - AP6 - AP7 - AP8 - AP9 - AP10 PROBE FAILURE
Label on alarm
visualization menu
AP1
= PB1 probe alarm…
AP10
= PB10 regulator probe alarm
Reason
Probe configured but the read-out is not in the range
Reset
Probe not configured or probe in the right range
Restart
Automatic
Symbol
On the display the symbol
is blinking
Action
Alarm Relay + and buzzer on
Loads
The behaviour of the load depend on witch probe is on error (regulation probe
= all loads OFF; external temperature probe = only loads involved on this
probe)
AEFL: evaporator flow alarm (differential pressure switch)
Label on alarm
visualization menu
AEFL
evaporator flow alarm
Origin
Digital input active for the time set in AL15 after the water pump is on and, after
the digital input itself is activated, for the time set in AL17.
Reset
Digital input not active for the time AL18.
Restart
Automatic – Manual if the digital input is active for AL16 seconds (Reset
procedure in Menu function).
Symbol
On the display the symbol
is blinking
Action
Alarm Relay + and buzzer on only during normal running conditions.
ATTENTION
The alarm relay and the buzzer are activated only if the alarm appears during normal running conditions.
When the temperature setpoint has been reached and CO16/CO21= 2, the icon
blinks without alarm.
NOTE ABOUT THE FLOW ALARM
CO16 / CO21=0
Water pump not enabled.
The alarm is managed only if one digital input is configured as flow switch,
the restart is always automatic.
CO16 / CO21=1
Water pump with continuous control.
The alarm is managed only if one digital input is configured as flow switch,
the restart is always automatic,
in stand–by or remote OFF ( pump off),
it becomes
manual
after AL16 time.
In chiller or heat pump only.
During the functioning of the unit any flow alarm stop the loads described in
the table, the water pump follow its regulation algorithm and is turned off, after AL16 time.
CO16 / CO21=2
Compressor on – pump on
The alarm is managed only if one digital input is configured as flow switch,
the restart is always automatic,
in stand–by or remote OFF ( pump off),
it becomes
manual
after AL16 time.
During the functioning of the unit any flow alarm stop the loads described in the table, the water pump follow
its regulation algorithm and is turned off, after AL16 time it is completely locked.
MANUAL RESTART OF THE FLOW ALARM
After AL16 time it is necessary to enter the function Menu to reset the alarm itself. The alarm message
DOES NOT DISAPPEAR
if the alarm condition is still on. The water pump, if configured, can start and the
alarm is by-passed for AL18 seconds.
AL15
Alarm flow delay after on pump.
When the water pump starts the AL15 delay stops any flow alarm to reach the normal flow condition.
AL16
Maximum time flow switch alarm active befor to block the water pump
It determines maximum time of flow alarm active before to block the water pump.
