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FIREFINDER SERIES II
INSTALLATION,
COMMISSIONING
&
OPERATION
4.8.1 Connecting the Mains Earth
All earth cabling shall be terminated to the panel Chassis Earth Terminal in a star configuration.
The earth cable closest to the cabinet body shall have an M4 SPW beneath the lug then an M4 SPW
and M4 nut.
Each additional earth cable shall be terminated with an M4 SPW and M4 nut.
An additional M4 nut and M4 SPW are fitted to the Chassis Earth Terminal for installers to connect
their Mains Earth.
M4 Shake Proof Washer
M4 Shake Proof Washer
CHASSIS EARTH TERMINAL
M4 Nut
Earth Cable
Earth Cable
M4 Nut
M4 Shake Proof Washer *
M4 Nut *
Note:
* Extra M4 Nut and M4 SPW are
provided finger tight on the Earth bolt.
Figure 6: Panel Earthing
4.8.2 Connecting the Mains Power to the Power Supply
Terminate the mains power to the 240 VAC switch terminal block as shown below.
2 AMP Power Supply
Output Voltage:
is set to 27.4Volts.
Mains cable should be no less than 0.75mm
POWER SWITCH
(LOOKING AT REAR)
MAINS CORD
BROWN
(ACTIVE)
BLUE
(NEUTRAL)
BROWN
(ACTIVE)
LED
TO CHASIS EARTH
TERMINAL
DC 27V TO PANEL
EARTH (GREEN)
L(AC)
N(AC)
GND
V-
V+
V ADJ
C
1
L
O
O
P
Figure 7: Mains Power Connection 2 AMP Power Supply