Secure SCP318 User Manual

SCP318

USER OPERATING INSTRUCTIONS

Single channel Z-Wave 7 day time control and

RF room thermostat

The Secure SCP318 combined wireless room stat and time
control allows a combi boiler system to have a room thermostat
added without the need for any additional wiring.

Replacing the existing time controller with the SCP318 will allow
the room thermostat to be connected wirelessly producing
immediate energy savings in houses where no previous room
thermostat has been fitted.

The device is intended to upgrade existing combi boiler systems
that do not have an existing room thermostat. It is not intended for
new installations where it will be necessary to install two heating
zones in order to comply with current Building Regulations.

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General system - explanation for householder

The SCP318 is a timeswitch which is connected to its own room
thermostat - using the latest Z-wave wireless technology.

Where it has been used to replace your existing time control it is
likely that there was no room thermostat fitted previously.

The addition of this room thermostat will make considerable
energy savings which independent tests have shown could be as
much as 10% off your energy bills.

The thermostat uses the latest micro-processor controlled energy
saving software – known as TPI - which is a very accurate
temperature control method compared to older style mechanical
room thermostats. It runs on two AAA batteries which should last
more than 2 years and a battery low indicator will appear in the
display of the thermostat when they need changing.

The SCP318 timeswitch is mains powered with a reserve battery
to retain its memory during power cuts. It will allow up to 3 On/Off
settings per day for each day of the week and has a 1 hour boost
button and an On/Off advance button.

There is also a programme override allowing the permanent
selection of OFF/ON/AUTO/ALL DAY.

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The room thermostat will only operate during
‘On’ periods set by the time control which is
always indicated by the red neon indicator light
on the front. If there is no light then the heating
is ‘Off’ and the room thermostat is inoperative.

When the timeswitch is ‘On’ (shown by the red
indicator light) th e thermost at wil l be
operational and will provide very accurate
control of the room temperature.

When the thermostat is ‘calling’ for heat the flame
symbol will appear in the thermostat display and if the
timeswitch is ‘On’ the heating will be operative and will
run under the control of the timeswitch and the
temperature set on the room thermostat.

The thermostat is silent in operation – it does not ‘click’ on and off
like older style thermostats. The contacts on the timeswitch will
do the actual switching rather than the thermostat which is linked
to it by Z wave wireless signals.

The indicator against the radio mast
symbol on the timeswitch shows that the
radio link is established.

A flashing indicator means that the
wir e le ss co n ne ct io n h as b e en
temporarily lost. This is usually restored
by going to the thermostat and turning
the dial up and down.

If no indicator is present next to the radio mast symbol then this
would suggest that the timeswitch and the thermostat have not
been paired correctly on installation. (See pairing instructions in
the Installation Guide).

Indicator light

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The SCP318 timeswitch

The simple instructions contained in this user guide are designed
to help with the programming and operation of the unit.

17

1 SET indicator - RUN is the normal position
2 Time of day
3 Switch period symbol
4 SET button
5 BOOST or adjust (-) button
6 ADVANCE or adjust (+) button
7 ENTER button
8 SELECT or COPY button
9 System ON indicator
10 SETTING positions
11 PROGRAMME settings
12 BOOST symbol
13 ADVANCE symbol
14 AM/PM symbol
15 Day of week indicator
16 PROGRAMME indicator
17 RF signal indicator

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