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AOV Installation, Commissioning & Operating Manual
Approved Document Ref: UI-AOV-01 Issue 7.0
15
PANEL FUNCTIONS
CABLE TYPES & LIMITATIONS
CABLING
CABLE LENGTHS
MAINS PROVISION
To comply with EMC (Electro Magnetic Compatibility) regulations and to reduce the risk of electrical
interference in the system wiring, we recommend the use of screened cables throughout the installation.
Acceptable, commonly available, screened cables, which can be used on both the sounder and detector
circuits include, NoBurn™ FP200™, Firetuff™, Firecel™, MICC (Pyro™) or any other cable complying with
BS 6387 categories C, W, Z.. Refer to BS 5839 pt1 clause 26 for detailed information on cables wiring
and interconnections.
Suitable cables should be brought into the cabinet using the knockouts provided via a suitable cable gland
recommended for use with that cable. The screen or drain wire of circuits should be bonded to earth at
one location only, and should be continuous throughout the circuit. Drain wires should be terminated in the
cabinet using the earthing terminal provided.
The maximum recommended cable length for a zone or sounder circuit is 1Km. This, however, is highly
dependant on the number and type of devices connected.
If in doubt, cable load and resistance calculations should be undetaken to ensure devices are working
within specified limits.
The mains supply to the control panel should be hard wired, using suitable three core cable (no less
than 1.0 mm² and no more than 2.5mm²) or a suitable three conductor system that meets the appropriate
national wiring regulations. The panel should be fed from an isolating switched fused spur, supplied directly
from the Main Distribution Board, fused at 3A. This should be secure from unauthorised operation.
As an alternative to a switched fused spur, an appropriately fused double pole isolating device may be
used providing it meets the appropriate national wiring regulations.
B -
Connections for 24v VRLA batteries
VENT CONT
Vent control inputs for manual operation of vents via seperate 3 way control switch.
OP
Open vent
COM
Common 0v reference for switching inputs
CL
Close vent
OP
COM
CL
Open Vent
Close Vent
Содержание AOV Series
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