4
WIRING
WARNING:
THE UNIT AND ANCILLARY CONTROL EQUIPMENT MUST BE
ISOLATED FROM THE POWER SUPPLY DURING THE INSTALLATION /
OR MAINTENANCE. THIS UNIT MUST BE EARTHED.
1.
To remove the cover, use a coin or similar; depress the retaining tabs via the slots in the side of
the unit.
2.
With the power off, connect a suitable mains power cable from a switched, fused spur to the screw
terminal block. Use the cable clamps and clip provided to secure the lead.
3.
Two mains voltage Live Switched (LS1 and LS2) connections are provided, and can be used to
trigger a change in speed. Common inputs would be from a bathroom lighting circuit. When
commissioning the unit, a delay on timer and an overrun timer can be selected and adjusted in the
software using the buttons and screen. See Commissioning section on page 5 of this document for
details.
4.
The switched live output (230Vac) from any other switch or controller, (such as a simple latching
pullcord or push button switch, humidistat or PIR detector) can be connected to the LS terminal
instead of connecting to a lighting circuit.
5.
Important: Use 4-core, low voltage, twisted pair, telecoms type cable for accessories. Accessories
are connected via the IO (Input Output) PCB; see the Low Voltage Connections diagram in the Main
fitting and wiring guide, downloadable on the website.
A: Main power connections
The LS1, LS2 and NS terminals are
electrically isolated. If the LS connections
are used, a connection must be made
with the NS terminal. This can be via a
jumper or dedicated neutral connection.
This appliance incorporates an earth connection for functional purposes only
Connection Description
1 L
Live (220-240Vac)
2 N
Neutral
3
Functional Earth
4 LS1
Live Switched 1, (220-240Vac), isolated
5 LS2
Live Switched 2 (220-240Vac), isolated
6 NS
Neutral Switched, isolated
1
2
3
5
4
6
