Emerson Dixell iProChill IPC115D - Page 189

1592025050 iProChill v2.5 10D00 AG v1.3 GB 18.02.2016.docx iProCHILL 189/205
10.26 PUMP DOWN ALARM WITH LOW PRESSURE PRESSURE SWITCH/TRANSDUCER IN
STOPPING
Alarm code
b1PH…b4PH (pump-down alarm in circuit n° 1…4 in stopping)
Display in keyboard
Pump down at stop circ1…Pump down at stop circ4
Cause of activation
With Pd1 ≠ 0, pump-down when compressor stopping:
 Pressure switch DI configured: with DI configured as Circuit 1…4 pump
down pressure switch (DI type = 85-88) or Low pressure switch circuit 1…4
(DI type = 14-17) not active and the pump-down ends by time Pd4.
 Transducer configured: the probe configured as Circuit 1…4 evaporating
pressure probe (4÷20 mA / 0÷ 5 Volt) (AI type = 56-59) measures the
value >= set Pd02 + Pd03 differential and the pump-down ends by time
Pd04.
Reset
The circuit has compressor running. User push RESET key from the keyboard.
Reset
Always manual reset
Icon
flashing
Action
Alarm relay + buzzer activated only when the alarm becomes manual reset
Regulators
Alarm
Relay + buzzer activated only when the alarm becomes manual reset
Reverse valve
It follows its regulation
Recovery valve
it follows its regulation
Free-cooling on/off valve
it follows its regulation
Auxiliary relay
It follows its regulation
Idle running valve
It follows its regulation
Supply ventilation
It follows its regulation
Condensation ventilation
It follows its regulation
Support/boiler/anti-freeze
It follows its regulation
Pump/and water evaporator
and condenser
It follows its regulation
Compressors
Off with manual reset alarm
Pump down solenoid valve
It follows its regulation
10.27 PUMP DOWN ALARM WITH LOW PRESSURE TRANSDUCER IN START-UP
Alarm code
b1PL…b4PL (pump-down alarm in circuit n° 1…4 in start-up)
Display in keyboard
Pump down at start circ1…Pump down at start circ4
Cause of activation
With Pd1 ≠ 0, pump-down when compressor start-up:
 Pressure switch DI configured: with DI configured as Circuit 1…4
pump down pressure switch (DI type = 85-88) or Low pressure switch
circuit 1…4 (DI type = 14-17) keeps active and the pump-down ends by
time Pd4.
 Transducer configured: the probe configured as Circuit 1…4
evaporating pressure probe (4÷20 mA / 0÷ 5 Volt) (AI type = 56-59)
measures the value <= set Pd02 and the pump-down ends by time Pd04.
Reset
DI deactivate or probe value > set Pd02
Reset
Automatic/becomes manual after Pd8 interventions per hour if Pd9 =1 (reset
procedure in functions menu) If Pd9 = 0 it remains with automatic reset. It is
recorded in the historical alarms only with manual reset
Icon
flashing
Action
Alarm relay + buzzer activated only when the alarm becomes manual reset
Regulators
Alarm
Relay + buzzer activated only when the alarm becomes manual reset