dIXEL IPC400D SERIES - Cold Side Flow Switch Alarm (Differential Pressure Switch)

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USER MANUAL – Release 1.2 of 01/01/2010 Page 163 of 191
Version: 02/03/2010
57.12 COLD SIDE FLOW SWITCH ALARM (DIFFERENTIAL PRESSURE SWITCH)
Display label meaning
AEFL (evaporator side flow switch alarm)
Cause of activation
(the flow switch alarm is only active in the units configured as air/water -
water/water)
ID active for the AL16 time from water pump start-up, after ID active for AL18
time
Reset
ID not active for the time AL19
Reset
Automatic – it becomes manual if ID active for time AL17 counted from the
expiry of AL18 (reset procedure in functions menu)
Icon
flashing
Action
Alarm + 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