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VR4K-1/CL TECHNICAL MANUAL
VER1.2
BLOCK DIAGRAM
INSTALLATION
The wiring diagram towards the back of this manual should be followed carefully. Heavy
duty conductors on wiring diagrams are shown heavily outlined; these wires should be
doubled up.
-
Check that all components are free from damage before installing (Do not proceed with installation in the
event of damage).
-
Keep all packaging away from children.
-
Do not obstruct the ventilation openings or slots on any of the devices.
- All connections to mains voltages must be made to the current national standards (IEE Wiring
regulations)
-
Install an appropriate fused spur or isolation switch to isolate the mains.
-
Isolate the mains before carrying out any maintenance work on the system.
-
All intercom and access control cables must be routed separately from the mains.
-
When the panel is mounted on an uneven surface, use additional sealant to protect from water ingress.
LOCK RELEASE
12V AC
~ ~
0.1uF capacitor
CABLE SIZE GUIDE
Connections from door panel to telephone.
Connections
50m 100m 200m 300m 400m
1
0.25mm² 0.35mm² 0.5mm² 0.75mm² 1.0mm²
2
0.25mm² 0.35mm² 0.5mm² 0.75mm² 1.0mm²
3
0.25mm² 0.35mm² 0.5mm² 0.75mm² 1.0mm²
4
0.25mm² 0.35mm² 0.5mm² 0.75mm² 1.0mm²
5
0.25mm² 0.35mm² 0.5mm² 0.75mm² 1.0mm²
Maximum acceptable resistance for all terminals = 10
Ω
Connections for power supply output to door panel and lock release connections. These
connections are shown heavily outlined on the wiring diagram.
50m
100m
Connections
0.5mm² 0.75mm²
The power supply should be located as close to the door panel as possible for best performance.
L
ock release back EMF protection :
A
capacitor should be fitted across the terminals on
an AC lock release
as shown in the diagram
below to suppress back EMF voltages.
