Emerson Dixell iChill IC207D - AEun: Unloading from high temperature of the evaporator water inlet; AEun: Unloading from low temperature of the evaporator water outlet; AHFL: domestic hot water flow alarm; ALC1: Generic alarm with stop regulation

1592015610 User manual IC200D EVO GB rel1.0 10.11.2015_rev10 IC200D 116/192
The parameters CO34 / CO35 define the hour set counters for the condenser water pump / Support water
pump.
They establish the load running hours limit of the pump/s or the supply fan to give a maintenance signalling.
If one of these parameters is equal to 0 the maintenance signalling of that load is disabled but the running
hours counter remains active.
AEun: Unloading from high temperature of the evaporator water inlet
Label on alarm
visualization menu
AEUn Unload signalling from evaporator
Origin
During normal running condition when the temperature/pressure of evaporator
water inlet is higher than CO40 setpoint for the CO42 time delay.
Reset
 If the water temperature is lower than CO39 –CO41 (differential)
 With unloading ON after the CO43 time delay.
Restart
Automatic
Symbol
On the display the symbol is blinking
Action
Alarm relay + buzzer OFF
AEun: Unloading from low temperature of the evaporator water outlet
Label on alarm
visualization menu
b1EU Unload signalling from evaporator circuit n° 1
b2EU Unload signalling from evaporator circuit n° 2
Origin
During normal running condition when the temperature of evaporator water
outlet is higher than CO55 setpoint
Reset
 If the water temperature is lower than CO55 + CO56 (differential)
 With unloading ON after the CO57 time delay.
Restart
Automatic
Symbol
On the display the symbol is blinking
Action
Alarm relay + buzzer
Regulation
Compressor
OFF
Other loads
Not modified
AHFL: domestic hot water flow alarm
Label on alarm
visualization menu
AHFL domestic hot water flow alarm
Origin
The flow switch alarm is not detecded for AL65 seconds starting from water
pump activation.
Flow switch alarm is signalled if the digital input is active for AL67 seconds.
Reset
Automatic reset: digital input not active for AL68 seconds.
Manual reset: Reset procedure in Menu function
Type of alarm
Automatic if flow switch digital input activation < AL66 + AL67
Manual if Automatic if flow switch digital input activation > AL66 + AL67
Symbol
On the display the symbol is blinking
Action
Alarm Relay + and buzzer on only during normal running conditions.
Loads
Domestic hot water pump OFF
ALC1: Generic alarm with stop regulation
Label on alarm
visualization menu
ALC1: generic alarm from digital input with stop regulation
Origin
Digital input configured as generic alarm with stop regulation active after the
delay in Par. AL43