3.5 Electrical connections
The appliance must be earthed. All wiring must confirm to BS 7671: Latest edition IEE wiring
regulations.
This appliance is suitable for 230v ~ 50Hz single phase supply fused at 3 amps.
This appliance is supplied with a mains flexible cable (PVC sheathed, 6-core 0.75mm
2
).
A double pole switch having a minimum contact separation of 3.0mm must be used to provide
isolation for the unit.
Switch Positions
Function
Low
(R1 / Low)
100% adjustable
Medium
(R2 / Med)
100% adjustable
High
(R3 / High)
100% adjustable
Remote Switch Positions
(R4)
100% adjustable
(R5)
100% adjustable
Upon installation the fans should be started in High Speed mode to ensure optimum performance
of the fans and switched to the required continuous ventilation setting.
The fan speed control must not be mounted above or within1m of the cooker where it could be
affected by excessive heat or moisture.
Wiring diagram
A five speed control switch (3 x manual, 2 x external sensors) is supplied. Each fan speed must
be adjusted to suit dwelling on installation (R1-Low/R2-Med/R3-High).
Any optional external sensors, i.e.: CO
2
, Humidity, Timer/Clock, Motion/PIR must also be
adjusted when connected (R4, R5).
Suggested set points are shown for general purpose ventilation (trickle, medium, purge) which
enable manual boost for purge (maximum) ventilation and/or override of external sensors when
fitted.
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Summary of Contents for Duplexvent DV72
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