2015-01-07
Page 8/9
and the Operation LED lights up instead. (The
function test is usually initiated by the timer
every 48 hours)
F and G. DAMPER STATUS
The green and red LEDs indicate the normal
position/alarm position respectively for the
relevant damper. The normal position is open
for a ventilation damper and closed for an
evacuation damper.
The dampers are numbered 1 and 2.
Troubleshooting
The "
ERROR
" LED lights or flashes.
•
Look at the pattern of flashing to identify
the error.
If the LED is constantly lit, there is a break in
the detector loop.
Check:
•
The terminating resistor in the last detector
of the loop with the problem. It should be
2200 ohm, 0.6 W.
•
If the input is not used, a resistor of 2200
ohm must be installed to replace the
detectors.
•
Break in cable
•
Loose contact in the detector bases.
•
Check the connections to the detectors.
•
Polarity!
Alternating short and long flashes to indicate a
service alarm (dirty smoke detector).
Check:
•
For dirt on one or more detectors. Indicated
by a yellow LED on the affected detector if
the detector has a service alarm function.
Vacuum-clean or, in the worst case, replace
the detector head.
Rapid flashes if the 48-hour test fails.
Check:
•
That the right number of dampers are
connected for the selected mode. If only
one damper is used, it must be connected to
DMP1 and jumper 4=ON
•
That the dampers open and that the green
LED is normal.
•
Carry out a manual function test and check
that the dampers operate within 2 seconds
if the MANF-VD24 is used. The red LED
lights up. The dampers must then return to
the normal position within 200 seconds and
the green LED lights up.
•
That the dampers are correctly connected.
Correct actuator type is selected. Pay
particular attention to the connection to
terminal 1.
The "
FIRE ALARM
" LED lights up
.
Check:
•
That the EXT input is jumpered or closed
by an external control unit.
•
For a short-circuit in one of the detector
loops.
•
An alarm from a detector is indicated with
an LED on the detector.
The "
SUM ALARM
" LED lights up
.
Check:
•
For other alarms indicated by the LEDs.
•
That no damper has operated incorrectly.
•
That the dampers are correctly connected.
The dampers do not open.
Check:
•
That there are no other alarms on the front
panel.
•
That the damper motor is connected
correctly.
A manual reset is required after an automatic
function test.
The "fan lock" output has probably been
connected to the wrong input in the ventilation
system, which has locked itself as a result.
A manual reset is required after night mode.
Requires a night mode signal from ventilation
system to the KSUG.
Locking may occur if night mode is indicated
by the KSUG, which then sends a stop signal
to the system via the fan lock. This locking
may be bypassed by setting jumper 2. The fans
are still locked if a smoke detector is triggered
and during the function test.
