User manual

1592022700 User manual iCHILL 200CX Rel. 1.0 22/04/2009
Pg.70/114
Origin During normal running condition when the temperature/pressure of evaporator water inlet is lower
than AL69 setpoint.
The alarm is not signalled for AL68 seconds starting from compressor activation.
Reset
Evaporator inlet temperature > AL69 + AL70
Unit in STD-BY or remote OFF (when the alarm is automatic reset)
Restart
Always manual if AL67=0
Always automatic if AL67=16
Automatic to manual if 0<AL67<16
Icon
blinking
Action
Alarm Relay + buzzer ON
Regolatori
Compressori
OFF
Other Loads
Not modified
AL71 Analog input for low water evaporator inlet temperature
AL71=0 alarm disabled
AL71=1 PB1
…
AL71=6 PB6
ATTENZTION:
The alarm is active in STD-BY, remote OFF, compressor OFF only if it was active when the unit was ON and it was a manual alarm.
39.18 AEDT DIFFERENTIAL ALARM EVAPORATOR WATER INLET – OUTLET
TEMPERATURE
Significato label display
AEdt
Causa attivazione
The alarm is not signalled for AL74 seconds starting from compressor activation.
Alarm signalled if:
• Heat Pump: Pb2 – Pb1 > AL77
• Chiller: Pb1 – Pb2 > AL75
Reset
• Heat pump: Pb2 – Pb1 < AL77 – AL78
• Chiller: Pb1 – Pb2 < AL75 – AL 76
Riarmo
Always manual if AL73 = 0
Always automatic if AL73 =16
Automatic to manual if 0<AL73<16
Icona
blinking and Flow! icon
Azione
Alarm Relay + buzzer ON
Regolatori
Compressor
OFF
Other Loads
Not modified
AL72 Differential Alarm evaporator water inlet- outlet temperature activation
AL72=0 Alarm disabled
AL72=1 Alarm activated only in chiller
AL72=2 Alarm activated only in heat pump
AL72=3 Alarm activated in chiller anf heat pump
AL79 Probe 1 selection for Inlet / outlet water tempearture differential alarm
Allows to select which probe value NTC/PTC Pb1..Pb6
AL80 Probe 2 selection for Inlet / outlet water tempearture differential alarm
Allows to select which probe value NTC/PTC Pb1..Pb6
ATTENTION:
The alarm is active in STD-BY, remote OFF, compressor OFF only if it was active when the unit was ON and it was a manual alarm.
39.19 ALTI: LOW AIR AMBIENT TEMPERATURE (AIR / AIR UNIT ONLY)
Label on the display
ALti (low temperature value of the evaporator air inlet)
Origin
Chiller mode: CF01=0 and evaporator inlet NTC probe lower than AL33 for AL35 seconds.
Heat pump: CF01=0 and evaporator inlet NTC probe lower than lower than AL42 forAL45 seconds
In stand-by or remote OFF: the evaporator inlet NTC probe lower than the lowest value compared
between AL33 and AL42.