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Free-cooling on/off valve
Auxiliary relay
0÷10V proportional output
Idle running valve
Flow ventilation
Condensation ventilation
Support/boiler/anti-freeze
Pump/water evaporator and
condenser
Compressors affected
Compressor not affected
Pump down solenoid valve
OIL ALARM WORKING DUE TO PRESSURE SWITCH OR FLOAT (SCREW)
It is possible that both safety systems can exist together in certain applications. The delay, the active input
duration and the number of interventions per hour are used to correctly manage the two safety devices.
Par. AL12
Oil alarm delay due to compressor activation.
Allows to set a delay in recognising the alarm of the pressure switch and the float from compressor start-up.
Par. AL13
Float pressure switch input active duration in normal working conditions.
Allows to set a time during which the oil alarm must remain active in normal working conditions. The alarm is
signalled after this time. The count starts after the AL13 time. It allows to filter any pressure or oil level drops
that may occur for brief moments, e.g. with the activation of a compressor unloader step.
Par. AL14
Maximum number of oil alarm interventions per hour.
It determines a maximum number of oil alarm interventions per hour. When these are exceeded the alarm
passes from automatic to manual reset.
Par. AL15
Oil float/pressure switch alarm with compressor in OFF if a differential oil pressure switch is used.
0 = alarm detection not enabled
1= alarm detection enabled
10.6 CONDENSATION HIGH TEMPERATURE/ PRESSURE ALARM
Alarm code
Display in keyboard
Cause of activation
Reset
Reset
Icon
Action
Regulators
Alarm
Reverse valve
Recovery valve
1592025050 iProChill v2.5 10D00 AG v1.3 GB 18.02.2016.docx
it follows its regulation
It follows/they follow its/their regulation
It follows/they follow its/their regulation
It follows its regulation
It follows its regulation
It follows its regulation
It follows its regulation
It follows its regulation
Off
It follows its regulation
It switches-off if there is only 1 compressor per circuit, otherwise it follows its
regulation
b1hp-...b4hp (circuit n° 1...4 condensation high temperature/pressure alarm)
Hi t/p.cond.circ1...Hi t/p.cond.circ4
With unit working in chiller or heat pump mode, if the condensation control
probe value >= AL09 set.
The condensation control probes' AI type can be 48...55, depending on SP01.
If the condensation control probe value <= AL09 set – AL10 differential
Reset is always manual if AL11 = 0
Reset is always automatic if AL11 =60
Reset passes from automatic to manual if AL11 goes from 1 to 59
(reset procedure in functions menu)
flashing
Alarm relay + buzzer activated
Relay + buzzer activated
it follows its regulation
it follows its regulation
iProCHILL
171/205
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