Alarm Description - comatec AQWL Installations- Und Wartungshandbuch

Alarm Description
AL55 Low suction alarm SyS 1
AL58 S1 sensor fault
AL59 S2 sensor fault
AL61 EVD Lan disconnected
AL62 Regulation alarm SyS 1
AL63 Autotune alarm SyS 1
AL64 EEV Motor error (check wirings)
AL65 MOP timeout (check timeout)
AL66 LOP timeout (check timeout)
AL67 Low SuperHeat (check timeout)
AL68 Low suction alarm SyS 2
AL69 Battery alarm
AL71 S3 sensor fault
AL72 S4 sensor fault
AL74 Regulation alarm SyS 2
AL75 Autotune alarm SyS 2
Each alarm is memorized in alarm history. If it is of manual reset type, its code is indicated in previous table. On the other hand, if it is of automatic
reset type, it is recorded with a special code as shown in table below:

Alarm description

Lack of flow
SyS#1 low suction pressure
SyS#2 low suction pressure
SyS#1 high pressure supply
SyS#2 high pressure supply
SyS#2 thermal compressor 1
SyS#2 thermal compressor 2
SyS#2 thermal compressor 3
SyS#1 thermal compressor 1
SyS#1 thermal compressor 2
SyS#1 thermal compressor 3
Setpoint
Pressing the Set key allows you to enter the Set point level accessible to the user. The parameters that can be set are listed below, along with the
limit values and the default values (standard shop settings):
User parameters
Cooling Setpoint
Cooling Setpoint - glycol water
Proportional band
Neutral band
Heating Setpoint
Languages
System On/Off
System 1 #
System 2 #
Unit management
6 - Control (continued)
Comp SYS 1
Status
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
OFF
ON
ON
ON
ON
Control mode
RWT Return Control
LWT Leaving Control
RWT Return Control
LWT Leaving Control
RWT Return Control
LWT Leaving Control
RWT Return Control
LWT Leaving Control
——
——
——
Comp SYS 2 Fan SYS 1
Status Status
ON OFF
ON OFF
ON OFF
OFF OFF
ON OFF
ON OFF
OFF ON
OFF ON
OFF ON
OFF ON
OFF ON
OFF OFF
OFF ON
OFF ON
OFF ON
OFF ON
Manual reset code
AL04
AL05
AL06
AL07
AL08
AL91
AL92
AL93
AL101
AL102
AL103
Min value
8
6
-15
-15
1
1
20
20
ITA ENG FRE GER SPA
OFF
OFF
Cooling
24
Fan SYS 2 Pump
Status Status
ON ON
ON ON
ON ON
OFF OFF
ON ON
ON ON
OFF ON
OFF ON
OFF ON
OFF ON
OFF ON
OFF OFF
OFF ON
OFF ON
OFF ON
OFF ON
Auto reset code
AL904
AL905
AL906
AL907
AL908
AL901
AL902
AL903
AL991
AL992
AL993
Max value Default
20
20
20
20
10
6
45
50
ON
ON
Heating
Reset
Auto/Man
MAN
MAN
MAN
MAN
MAN
MAN
MAN
MAN
MAN
MAN
MAN
MAN
MAN
MAN
MAN
MAN
10
8
10
8
5
2
40
40
ITA
OFF
OFF