Technical data

Ichill 200CX EVO rev 1.1 14/11/2013
Pag. 91 of 151
ATTENTION:
When the supply fan is on and the Ichill is forced in STD-BY or remote OFF (by digital input), the supply fan
will be switched off with a CO18 delay.
47. MESSAGES - ALARM CODES
The alarm codes are defined by an alphanumeric code.
Alarm typology:
• A = alarm of the unit
• b = alarm of the circuit
• C = alarm of the compressor
47.1 Automatic / Manual Alarm Description
The menù ALrM allows to read/reset the alarms.
An alarm can be:
• automatic reset: the alarm reset automatically when the cause of the alarm is not present
• manual reset: manual reset is requested
Some alarms are managed by number of events per hour; it is possible to set a number of alarms per hour
after witch the alarm become a manual reset.
Following an example of low pressure alarm:
o AL05=0 the alarm is always manual reset
o 0<AL05<16:
o the alarm is automatic if the number of the event is < AL05
o the alarm is manual if the number of the event is = AL05
o AL05=16 the alarm is always automatic reset
Compressor overload alarm is managed in a special way:
- when the number of the alarms per hour is < AL20, the alarm is a manual reset
- when the number of the event is = AL20, the alarm is manual reset and a password is requested. In
this case the alarm is stored and visible in COtr menu.
If the cause of alarm is already present, the display shows “no” and it is not possible to reset the alarm.
If the cause of alarm is not present, the display shows “Rst” and it is possible to reset the alarm.
AP1 ... AP6, APt1.. Apt2, APE1 .. APE8, APU1 .. APU4 PROBE FAILURE
Label on alarm
visualization menu
AP1 = PB1 probe alarm…AP6 = PB6 regulator probe alarm
APt1 = remote keyboard 1 alarm probe …APt2 = remote keyboard 2 alarm
probe
APE1 I/O expansion probe 1 alarm…APE8 I/O expansion probe 8 alarm
APU1 expansion valve probe 1 alarm... APU4 expansion valve probe 2 alarm
Reason
Probe configured but the read-out is not in the range
Reset
Probe not configured or probe in the right range
Restart
Automatic
Symbol
On the display the symbol
is blinking
Action
Alarm Relay + and buzzer on
Loads The behaviour of the load depend on witch probe is on error (regulation probe
= all loads OFF; external temperature probe = only loads involved on this
probe)