E_MH_Installation_instruction_Skycom_Skymax_CE 01/10/2016
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Nr.2-20
L2
L2
Nr.1
16
Gnd
17
Smoke
10
K
Ω
L1 Out
Smoke or heat sensors
L1 In
L1 Out
L1 In
(only last sensor)
Smoke- / heat detectors
Smoke- and heat detectors are connected as shown.
Line monitoring: Correct line monitoring can only be guaranteed with detectors delivered
from the supplier. Other detectors may have different internal resistances and stand by
power consumption.
Connect max 20 pc per control.
Comfort ventilation
The motor output can be controlled separately with comfort switch(es).
The master control has already integrated comfort open/close buttons.
Additionally external comfort switches can be connected as shown on the scheme.
It’s possible that due to fall-through safety, it’s forbidden to open the smoke hatches more than
30 cm for ventilation.
For comfort ventilation there are the following possibilities:
Potentiometer in Puls position:
It is possible to press the »up« button 3 times, which each gives 10 seconds of opening time -
after that nothing happens – Continuous »up« signal gives 3x10 sec.= 30 sec. - One press on
»down« closes the actuator completely; it takes 18s longer compared to fully closing time - In
order to avoid »actuator pumping« max. 3 successive closing attempts will be allowed.
Potentiometer in Constant position:
As long as »up« signal or »down« signal are given, the actuators are running. This is the
recommended position in case of e.g. roof access
Potentiometer in Puls variable position:
The time on the above mentioned pulse opening can be adjusted from 1-60 sec. on the
potentiometer.
When moving the potentiometer into the different positions the LED batt low will ash for about
4 sec. to indicate when in puls mode. LED line fail ashes 4 sec. when in Constant and AC fail
ashes when in puls Variable.
Put the potentiometer of all connected detection units (also Master) in the same position.
20
Gnd
18
Up
19
Down
Puls
variable
Min
Const.
Max.
Puls
YELYEL YEL
AC FAIL LINE FAIL BATT LOW
Up
Down
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