1592025050 iProChill v2.5 10D00 AG v1.3 GB 18.02.2016.docx iProCHILL 180/205
10.13 HOT SIDE FLOW SWITCH ALARM (DIFFERENTIAL PRESSURE SWITCH)
ACFL (Condenser side flow switch alarm)
Not in air/air unit (CF01≠0). Detect DI configured as Condenser flow switch
(DI type=4):
If pumps are not managed (PA17=0), when DI active, alarm occur.
If pumps are managed and polarity check not required (AL26=1), after a delay
of AL22 from pump start-up, if DI keeps active for AL24, alarm occur.
If pumps are managed and polarity check required (AL26≠1), after a delay of
AL22 from pump start-up, if DI still keeps the same status as that when pump
not working for AL24, alarm occur.
Note:
When pumps are managed, check AL21 to determine if alarm detection is
available in chiller mode or heat pump mode.
Alarm only enabled in chiller mode if AL21=1
Alarm only enabled in heat pump mode if AL21=2
Alarm enabled in chiller and heat pump mode if AL21=3
DI not active. If pumps are managed, wait for time AL25 after DI deactivate.
Automatic – it becomes manual if this alarm active for time AL23 (reset
procedure in functions menu)
Relay(DO type=163) + buzzer only activated if the flow switch alarm is
activated in normal working phase
Relay + buzzer only activated if the flow switch alarm is activated in normal
working phase
It follows its regulation
It follows its regulation
Free-cooling on/off valve
It follows its regulation
Anti-freeze/Support/boiler
It follows its regulation
It follows its regulation
With PA17=1 always on; off when the alarm becomes manual reset
With PA17=2 follows its regulation; off when the alarm becomes manual reset
It follows its regulation
WARNING
Relay + buzzer are only activated if the flow switch alarm is activated in normal working phase.
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