GB.COMPACTAHSK.210520
Registered design. The company reserves the right to make design changes without prior notice.
46 www.swegon.com
*** Blocked if the control display does not display the main menu.
Alarm no.
Alarm text
Function
Priority
Stop
Indication
LED
Delay
Resetting
0=blocked 0=In operat.
0=Off
s=seconds
M=manual
A=A alarm
1=Stop
1=On
m=minutes
A=automatic
B=B alarm
50
51
SUPPLY AIRFLOW ABOVE SETPOINT
EXTRACT AIRFLOW ABOVE SETPOINT
The supply/extract airflow has been more than
10% above its setpoint for more than 20 minutes.
B ***
B ***
0
0
1
1
20 m
20 m
M
M
52
53
SUPPLY AIR FILTER DIRTY
EXTRACT AIR FILTER DIRTY
The pressure across the supply /extract air filters
has exceeded the preset alarm limit for more than
10 minutes.
B ***
B ***
0
0
1
1
10 m
10 m
M
M
54
SERVICE PERIOD PAST ALARM LIMIT
The preset service period has expired.
If the alarm is RESET via the hand-held micro
terminal, the alarm will be initiated again after
7 days. A new service period can be set in the
ALARM SETTINGS menu.
B ***
0
1
Set time
M
55
56
NO COMM. SA AIR FLOW PRESSURE SENSOR
NO COMM. EA AIR FLOW PRESSURE SENSOR
The air handling unit’s control unit cannot estab-
lish correct communication with the supply/extract
air flow pressure transducer.
A ***
A ***
1
1
1
1
10 s
10 s
A
A
57
58
NO COMM. SA FILTER PRESSURE SENSOR
NO COMM. EA FILTER PRESSURE SENSOR
The air handling unit’s control unit cannot estab-
lish correct communication with the supply/extract
air filter pressure transducer.
B ***
B ***
1
1
1
1
10 s
10 s
A
A
61
NO COMM. R.HX. PRESSURE SENSOR
The air handling unit’s control unit cannot estab-
lish correct communication with the pressure
transducer connected for the heat exchanger.
Applicable to the defrosting function only.
B ***
0
1
10 s
A
62-71 NO COMMUNICATION TO I/O-MODUL NR 1–9
The air handling unit’s control unit cannot estab-
lish correct communication with the connected
I/O module 1–9
B ***
0
1
3 s
A
72
Correct communication can be established
between the CPU circuit card and the control
unit*s I/O processor.
A
1
1
30 s
A
85
COOLING OUTPUT 1 TRIPPED
Broken signal is obtained at D11 for I/0-module
6. Motor protection or pressure switch may have
tripped.
A
0
1
3 s
M
86
COOLING OUTPUT 2 TRIPPED
Broken signal is obtained at DI2 for I/0-module 6.
The motor protection or pressure switch may have
tripped.
A
0
1
3 s
M
96
LOST SETTINGS
An incorrect checksum for the backup file is
obtained on reboot. When an alarm is generated,
set values in the hand-held terminal return to the
factory settings or are inaccurate. Compare and
restore values in accordance with the commission-
ing protocol.
A
1
1
3 s
M
99
TIME LOCK TRIPPED
Contact Swegon or their representative.
–
–
–
–****
M
102
COOLING VALVE I/O-7 DEFECTIVE
Controls of the Cooling valve do not obtain the
same signal on AI 1 as on AU1 on I/O-module.
B***
1
0
10 m
M
