5
5. Electrical connections are simpli
fi
ed by using a Wiring
Centre. However, if this is not used, the wallplate
terminal identi
fi
cation is as shown.
If the system being controlled is 230Vac then terminals
3 and L must be linked with insulated cable capable
of carrying full load current. Whilst the unit does not
require an earth connection, a terminal is provided on
the wallplate for earth continuity purposes.
6. Referring to the wiring diagrams on page 6-9, connect
the unit as shown.
7. Find out from the user whether the unit is required
to operate in 24-hour mode (factory preset) or
weekday/weekend mode (5/2 day). To convert to 5/2
day mode remove the small two-way connector from
the pins towards the left of the recess on the rear of
the module, then press the
SELECT/A/-
buttons all at the same time to RESET the unit.
8. Ensure all dust and debris are cleared from the area.
Plug the module into the wallplate by locating it onto
the wallplate and, when
fl
ush with it, sliding it down,
ensure the hook at the top of the wallplate engages
with the slot at the back of the module.
9. Before setting the programme, check the unit and circuit.
Set the rocker switch to
WATER & HEATING
. Press the
SELECT
button until the bar in the display lines up with
the word
ON.
Adjust the remote thermostats to check the
system operates correctly.
Installation
Water
Heating
COM
Mains Supply
(via 3 amp fuse)
ON
ON
N
L
1
2
3
5
6
