INSTRUCTION MANUAL
UG30 CONTROL
mP30-UG30 - Rev. 1.5 - Date: 18-03-2004
EN
39 (44)
ALARM CODES DESCRIPTION
All possible alarm codes are listed below.
All alarms, except the clock alarm, are read only with the UNIT ON.
Code
Description
Restart
Alarm type
C L o C
Clock alarm.
Manual Non-serious
S P : A
External general alarm.
- Serious
CLoC
: clock alarm faulty
An alarm generated by a malfunctioning clock card. It causes an interruption of the hour-bands and the regulator
goes into ON status even if it is commanded to OFF by the current band.
This event does not shut down the alarms historic record function, which continues recording the signals, but with
incorrect time values.
SP:A
external general alarm
Alarm configurable with parameters Pb and PC.
TEMPERATURE AND HUMIDITY LIMITS EXCEEDED
These are signal-only alarms linked to an excess in the set temperature and humidity levels.
Code
Description
Restart
Alarm type
H I : R H
High room humidity alarm.
Automatic Non-serious
L O : R H
Low room humidity alarm.
Automatic Non-serious
H I : R t
High room temperature alarm.
Automatic Serious
L O : R t
Low room temperature alarm.
Automatic Non-serious
The thresholds are defined by FACTORY parameters P6, P7, P8, P9 according to the following diagrams.
They are ignored during UNIT start-up for a time period equal to the
PA
parameter (see paragraph “DELAYS DUE
TO ALARM SIGNALLING”).
The alarm is tripped if the set threshold is exceeded for at least one minute.
If the high temperature threshold is exceeded, this causes immediate start-up of the compressors without
respecting the relevant times.
FUNCTIONAL ALARMS
Code
Description
Restart
Alarm type
A : F L
Airflow alarm or Fire /smoke detector alarm
Manual Serious
C L : F i
Air filter obstructed.
Manual Serious
C o : F A
Cooling function alarm.
Manual Serious
C t : H
Compressor/s thermal breaker alarm.
Manual Serious
F t : H
Fan/s thermal breaker alarm.
Manual Serious
H E : O H
Electrical heating elements overheating.
Manual Non-serious
H P : C 1 - H P : C 2
Compressor 1./2. high pressure.
Manual Serious
H U : F A
Humidifier alarm.
L P : C 1 - L P : C 2
Compressor 1./2. low pressure.
(***)
Serious
A:FL
Airflow alarm or optional Fire/smoke detector alarm
The alarm can be delayed by parameters P1 and P2 and causes all devices to switch off immediately.
CI:F1
dirty filter
Signal only alarm. To reset it, reset the filter hour-counter (USER parameter
Fc
).
CO:FA:
delivery (or cooling function) high temperature alarm
It is read by the B4 delivery temperature sensor when the cooling function is active, but the difference between the
delivery air temperature and room temperature is lower than the value defined by the
Pd
parameter (default
3°C
).
