Emerson Dixell iProChill IPC115D - Page 178

1592025050 iProChill v2.5 10D00 AG v1.3 GB 18.02.2016.docx iProCHILL 178/205
Support/boiler/anti-freeze
If air/air unit off otherwise follows its regulation
Support/boiler/anti-freeze
With DI alarm activated
Pump/and water evaporator
and condenser
They follow their regulation
Compressors
Off
Pump down solenoid valve
Off
10.12 EVAPORATOR SIDE FLOW SWITCH ALARM (DIFFERENTIAL PRESSURE SWITCH)
Alarm code
AEFL (Evaporator side flow switch alarm)
Display in keyboard
Plant side flow AL
Cause of activation
Detect DI configured as Evaporator flow switch (DI type=3).
If pumps are not managed (PA01=0), when DI active, alarm occur.
If pumps are managed and polarity check not required (AL20=1), after a delay
of AL16 from pump start-up, if DI keeps active for AL18, alarm occur.
If pumps are managed and polarity check required (AL20≠1), after a delay of
AL16 from pump start-up, if DI still keeps the same status as that when pump
not working for AL18, alarm occur.
Reset
DI not active. If pumps are managed, wait for time AL19 after DI deactivate.
Reset
Automatic – it becomes manual if this alarm active for time AL17 (reset
procedure in functions menu)
Icon
flashing
Action
Alarm (DO type=162) + buzzer relays only activated if the flow switch alarm is
activated in normal working phase
Regulators
Alarm
Relay + buzzer only activated if the flow switch alarm is activated in normal
working phase
Reverse valve
It follows its regulation
Recovery valve
It follows its regulation
Free-cooling on/off valve
It follows its regulation
Anti-freeze/Support/boiler
Off
Auxiliary relay
It follows its regulation
Supply ventilation
Off
Condensation ventilation
It follows its regulation
Evaporator water pump
With PA1=1 always on; off when the alarm becomes manual reset
Evaporator water pump
With PA1=2 follows its regulation; off when the alarm becomes manual reset
Condenser water pump
It follows its regulation
Compressors
Off
Pump down solenoid valve
Off