Consilium Salwico CS4000, Руководство по установке

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Installation Manual
Chapter 2: Installation
Salwico CS4000
6
Important notice:
•
Set the address switch on each loop unit before connecting them to
the loop. If an address unit is used, set its ID switch too. See
Setting
the address of the loop units
later in this chapter and also
A
ppendix A and B
.
•
It is recommended that all short circuit isolators are bypassed before
the loop is tested. Join the cores leading to terminals 2 and 4 and the
cores leading to terminals 1 and 3 by means of a temporary
connector block inside the short circuit isolators.
•
Do not remove the dust protection cover from the smoke detectors
until all polluting activities (such as construction work) are finished
and the area has been cleaned.
EN54-2 requirements for detector loops
To comply with EN-54-2 (industrial applications) it is not allowed to
have more than 32 detectors or manual call points between two short
circuit isolators on a detector loop. If a short circuit appears on the loop,
the surrounding short circuit isolators will isolate this part of the loop
enabling all other loop units to continue to operate. The LB3 loop board
is equipped with internal short circuit isolators on both the A and B-
sides of the loop.
For example: If you plan to have 200 detectors or manual call points on
a loop, you will need: 200/32=6.25
→ at least 7 pcs of short circuit
isolator evenly spread on the loop.