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Operation and Maintenance Manual
– SCD Smoke Dampers
Version 1
Date 04 2018
Page 71 of 81
The RT 2 smoke extraction push button is used for manual alarm triggering in smoke
extraction systems.
In the RT 2-K version the push button has one LED indicator
– the red one, which
indicates ALARM. In the RT 2-K-BS version the push button has three LED indicators: the
red one
– ALARM, the yellow one – DAMAGE, and the green one – OK.
The push button should be located at a place, where it would be easily accessible for
users and service teams, preferably at/near escape routes. Electric connections should be
made by authorized persons.
The alarm is triggered by pushing the emergency push button, after breaking the
glass in the housing.
In order to cancel the alarm release the push button mechanical lock after opening
the housing.
Technical Data:
Power supply
24 V=, 100 mA max.
Operating temperature range
-100C to +550C
Air humidity
20% to 80% (without condensation)
Ingress Protection Rating of the housing
IP 42
Dimensions (height x width x depth)
125 x 125 x 35 mm
Way of activation
manual
Range of cross-sections of the cables to connect
1.0 mm
2
Housing
ABS, lockable
6.7.
VENTILATION PUSH BUTTON
Rys. 54. Ventilation push button.
The LT-AP push button makes it possible to control the ventilation function in a
comfortable and safe way. It is made as a surface-mounted element.
Technical Data:
•
Maximum contact load 10 A / 250 V AC
•
IP44 Ingress Protection Rating of the housing
•
Light grey colour