VELUX
®
21
J1
6
5
4
3
2
1
3
2
1
3
2
1
2
1
1
3
2
+ –
2
1
3
2
1
3
2
1
3
2
5
4
1
LINK
FACU
BATTERY
DET.
2
1
DET.
2
1
N
L
N
L
PE
N
L
230V
230V
ERROR-MOTOR 1
ERROR-MOTOR 2
ERROR-SMOKE DET.
ERROR-BREAK GLASS
RAIN SENSOR INPUT
ALARM ACTIVE
ERROR-TEMP. FUSE
MAINTENANCE
BATTERY
PSU2 OK
PSU1 OK
OPERATION
RESET
SE
TUP
RESET
73˚ C
TEMP. FUSE
TIME
AU
TO
CL
OSE
TIME
OPENNIG
CO
M
FO
RT
FRONT P
ANEL
BREAK GLASS POINT
RAIN
RAIN IN
COMFORT
SMOKE
RAIN OUT
ERROR
ALARM
FUSE: 25A
MOTOR 2
MOTOR 1
230V/50Hz
+
–
24V
24V
1
ON
2 3 4 5 6
1
ON
2 3 4 5 6
The control unit has batteries that ensure emergency power supply
for 72 hours in case of power failure. Therefore, if there is a fire alarm
within these 72 hours, the windows will still be able to open.
Note:
The batteries must be checked at the yearly inspection. We
recommend that the batteries are replaced at least every four years.
Note the replacement date.
In case of power failure, the comfort ventilation is interrupted automati-
cally, and all windows close after 2 minutes. Comfort ventilation is not
possible until the mains connection has been re-established.
The printed circuit board monitors the status of the back-up batteries.
If the control unit is being supplied with power from the back-up batter-
ies, the yellow light-emitting diode flashes on and off showing that the
230 V mains supply is interrupted.
Install battery holder.
Back-up batteries
Содержание KFX 210
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