3
4
4. Features
5. Installation
4 On/OFF switching programmes per day. Which for the FST77 can be made to
operate over all 7 days (24 hour operation), 5 weekdays 2 weekend days, or any
individual day (7 day operation). For FST24, 5+2 and individual day programming
are not available, all 7 days are the same.
Advance feature, which can advance to next programmed operation, turn output
permanently on, turn output permanently off, or return to programmed times.
Boost feature provides 1 or 2 hour boost.
Option of automatic summer time update (ASCO).
Shortest switching time of 1 minute.
Programme review.
Important: Switch off mains electricity before commencing work.
The unit is designed to replace an existing single gang connection unit
or fixed appliance outlet giving timed mains output, protected by a BS1362 fuse.
The unit is capable of forming part of a ring main (the terminals can accept
2 x 2.5mm sq. cables) or terminating a spur off the ring main. The unit requires
a minimum depth of 25mm within the box.
Ensure that the wiring is adequate for the load to be carried. Connect incoming and
outgoing cables to the relevant terminals. Secure the unit to the back box with the
3.5mm screws provided, forming cables during installation to avoid entrapment
and cable damage.
Use the loop terminal, or the earth terminal in the back box for earth continuity
if required. If installed into a metal back box, earthing of the back box is required.
There is a removable cable blank to cover the front cable exit if this feature is not
required. If the front cable exit is required, for instance to connect to a washing
machine, use one of the cable clamps provided to secure the outgoing cable.
