Installation
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ASD 535, Mounting and installation, T 140 333 d en
3.3
Deploying smoke sensors
Smoke sensors are not fitted when the ASD 535 is delivered. They are application specific (according to required sensitivity
range), purchased from the manufacturer and installed after the detector housing is mounted.
Notices when deploying smoke sensors
•
The smoke sensors should always be removed from their protective packaging just before deployment in the
detector housing.
•
Depending on the situation (e.g. if there is a long time between mounting and commissioning or if the envi-
ronment is very dusty due, for example, to construction), the smoke sensors should be installed just before
commissioning the ASD 535.
•
Before installing the smoke sensors, check that the protective screens against insects are properly fitted to the
air inlet and outlet in the smoke sensor chambers.
•
The smoke sensor chamber must be absolutely free of dirt and dust. Any waste or other materials resulting
from mounting the detector housing must be removed.
The installation position of the smoke sensors depends on the particular smoke sensor chamber (I or II). The installation posi-
tion is always such that the connectors of the smoke sensors are oriented toward the outside of the ASD housing. Incorrect in-
stallation positioning is prevented by the anti-twist rib on the smoke sensor housing.
The smoke sensors are fastened with the two lock clamps in the ASD housing. The flat cable delivered with the smoke sensor
is connected to the smoke sensor (big flat cable connecter) and to the AMB 35 Main Board (small flat cable connector).
The insect protection screens and lock clamps are not fitted to smoke sensor chamber II on the ASD 535-1 and -3 (only one
smoke sensor). Instead of using the insect protection screens, the air channels are closed. Smoke sensor chamber II remains
open for operation.
Fig. 17 Deploying the smoke sensors
Anti-twist rib
Big flat
cable connector
Flat cable
Smoke sensor
chamber I
Smoke sensor I
Smoke sensor II
Connection for
Smoke sensor I
Connection for
Smoke sensor II
AMB 35
Smoke sensor
chamber II
Insect
protection screen
Lock clamps
Summary of Contents for ASD 535
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