GB.COMPACTAHSK.210520
Registered design. The company reserves the right to make design changes without prior notice.
44 www.swegon.com
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
1
EXTERNAL FIRE ALARM TRIPPED
For the fire protection function connected to
inputs Inp. 1 or Inp. 2.
A****
1*
1
3 s
M
2
INTERNAL FIRE ALARM TRIPPED
The air handling unit’s supply air sensor measures
a temperature more than 70 °C and/or its extract
air sensor measures a temperature more than 50
°C.
The function must be activated manually in the
ALARM SETTINGS menu.
A ****
1*
1
3 s
M
4
R.HX.SPEED MONITOR TRIPPED
No impulses from the rotation detector are
registered with the heat exchanger controller. The
air handling unit will be switched out only if the
outdoor temperature drops below 5 °C.
A
0**
1
3 s
M
6
7
SUPPLY AIR TEMP SENSOR DEFECTIVE
EXTRACT AIR TEMP SENSOR DEFECTIVE
The supply air/extract air temperature sensor is not
connected or is faulty.
A
A
1
1
1
1
3 s
3 s
A
A
8
OUTDOOR AIR TEMP SENSOR DEFECTIVE
The outdoor air temperature sensor is not con-
nected or is faulty.
B
0
1
3 s
A
9
NO COMMUNICATION TO R.HX. CONTROLLER
The air handling unit’s control unit cannot
establish correct communication with the heat
exchanger controller.
A***
1
1
10 s
A
10
11
NO COMMUNICATION TO SA FREQUENCY CONV.
NO COMMUNICATION TO EA FREQUENCY CONV.
The air handling unit’s control unit cannot
establish correct communication with frequency
inverter.
A ***
A ***
1
1
1
1
10 s
10 s
A
A
12
13
OVER CURRENT IN SA FREQUENCY CONV.
OVER CURRENT IN EA FREQUENCY CONV.
Current above the normal level is supplied to the
motors.
A ***
A ***
1
1
1
1
3 s
3 s
M
M
14
15
UNDER VOLTAGE IN SA FREQUENCY CONV.
UNDER VOLTAGE IN EA FREQUENCY CONV.
Voltage below the normal level is supplied.
A ***
A ***
1
1
1
1
3 s
3 s
M
M
18
19
OVER TEMPERATURE IN SA FREQUENCY CONV.
OVER TEMPERATURE IN EA FREQUENCY CONV.
High temperature inside the inverter.
A ***
A ***
1
1
1
1
3 s
3 s
M
M
20
21
NO COMMUNICATION WITH SA FREQUENCY
CONV. GATEWAY
NO COMMUNICATION WITH EA FREQUENCY
CONV. GATEWAY
The air handling unit’s control unit cannot estab-
lish correct communication with the fan’s com-
munication gateway.
A***
A***
1
1
1
1
10 s
10 s
A
A
22
23
SA FREQUENCY CONV. HALL SENSOR DEFECTIVE
HALL SENSOR DEFECTIVE EA FREQUENCY CONV.
Internal fault in hall sensor.
A***
A***
1
1
1
1
10 s
10 s
M
M
18.2 Alarm Descriptions with Factory Settings
* Not adjustable, always stops the air handling unit.
** Not adjustable, stops the air handling unit if the temperature to below +5 ºC.
*** Blocked if the hand terminal does not display the main menu.
**** Cannot be blocked.
