Rain Sensor; Receive Alarm From A Primary, External Control System - Velux KFX 210 Instructions Manual

Connected control units

Rain sensor

The product can be purchased separately.
Connection
The rain sensor is connected to the control system by means of a 3-core
cable with a minimum cross-section of 0.5 mm
100 m long.
NB: If the rain sensor has been activated, it will take at least 2 minutes
before the comfort ventilation can be activated again.
The example below shows a cable connection with several control
systems but only one rain sensor.
RAIN OUT RAIN IN RAIN OUT
1 2 3 1 2 3 1 2 3
Control unit 1 Control unit 2
26 VELUX
®
230V/50Hz MOTOR 1 MOTOR 2 ALARM LINK RAIN OUT RAIN IN FACU ERROR SMOKE RAIN
L N PE 1 2 3 4 5 1 2 1 2 3 1 2 3 + – 1 2 3 1 2 1 2 3
1 2 DET. 1 2 DET.
TEMP. FUSE
73˚ C
230V
OPERATION
PSU1 OK
PSU2 OK
L N RAIN SENSOR INPUT
MAINTENANCE
230V
BAT TERY
FUSE: ERROR-MOTOR 1
25A
ERROR-MOTOR 2
L N ERROR-SMOKE DET.
ERROR-BREAK GLASS
+ –
ERROR-TEMP. FUSE
24V BAT TERY ALARM AC TIVE
. This cable can be up to
2
RAIN IN FACU ERROR SMOKE RAIN
+ –
1 2 1
1 2 3 1 2 3
Connected control units
COMFORT BREAK GLASS POINT
1 2 3 1 2 3 4 5 6
J1
RESET
RESET
24V

Receive alarm from a primary, external control system

In installations with several connected control systems, all smoke detec-
tors and additional break-glass points must be connected to the primary,
external control system according to the instructions supplied with
them. In this installation, control unit KFC is controlled by the primary,
external control system and the smoke ventilation function will be
activated, when an alarm is received from the primary, external control
system.
Connection is established by placing the cable from the primary control
system in the FACU-terminal in control unit KFC.
Note: Set dip switch no. 2 in position ON in the control unit.
To ensure monitoring of cables, one of the following descriptions must
be followed:
If the external control system has a 24 V DC or 48 V DC outlet which
a
is interrupted in case of fire,
If the external control system has one potential-free relay outlet only
b
which is interrupted in case of fire,
monitoring of cables is obtained by connecting 24 V DC or 48 V DC
through the relay.
Note: Do not overload the 24 V outlet with other additional connections.
a
Fire Alarm
Control Unit
2 3
FACU
+ –
230V/50Hz MOTOR 1 MOTOR 2 ALARM LINK RAIN OUT RAIN IN FACU ERROR SMOKE RAIN COMFORT
L N PE 1 2 3 4 5 1 2 1 2 3 1 2 3 + – 1 2 3 1 2 1 2 3 1 2
1 2 DET. 1 2 DET.
TEMP. FUSE
73˚ C
230V
OPERATION
PSU1 OK
PSU2 OK
L N RAIN SENSOR INPUT
MAINTENANCE
230V
BAT TERY
FUSE: ERROR-MOTOR 1
25A
ERROR-MOTOR 2
L N ERROR-SMOKE DET.
ERROR-BREAK GLASS
+ –
ERROR-TEMP. FUSE
24V BAT TERY ALARM AC TIVE
b
ALARM FACU
+ –
1 2 3 4 5
VELUX
®
BREAK GLASS POINT
3 1 2 3 4 5 6
J1
RESET
RESET
24V
27