1
The Secure CentaurPlus C17-ZW has the functionality of a timeswitch with the addition of
a Zwave RF interface, providing the additional capability of being controlled by a 3rd party
controller.
CentaurPlus C17-ZW allows the schedule to be locally programmed and maintained,
providing the user with up to 3on /offs per day with different timings possible for each
day of the week.
While CentaurPlus C17-ZW remains in an off period all remote commands will be ignored,
providing the user with full control of the schedule through an already well established
user interface
CentaurPlus ZW Timeswitch
User and Installation Instructions
2
User Instructions
The CentaurPlus C17-ZW Timeswitch
The simple instructions contained in this user guide are designed to help with the
programming and operation of the unit.
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 indications
•
The indicator against the radio mast symbol on the
CentaurPlus ZW shows that the radio link is established.
•
A flashing indicator means that the wireless connection
has been temporarily lost.
•
If no indicator is present next to the radio mast symbol
then this would suggest that the CentaurPlus ZW has
not been paired correctly on installation.
1 14
10
17
3
11
12
13
9
4 5 6 7 8
2 1615
3
Manual Overrides
BOOST FUNCTION - 1 HOUR TEMPORARY OVERRIDE
The boost facility will allow the user to boost the system which is currently ‘OFF’ for 1 hour.
To indicate the boost being activated BOOST will be shown on the display for the duration
of the boost period. The system ON indicator will also be illuminated.
ADVANCE FUNCTION – BRINGS FORWARD THE NEXT ON OR OFF OPERATION
The advance facility will allow the user to advance the system to ‘ON’ when currently ‘OFF’
or switch the system ‘OFF’ when currently ‘ON’. To indicate the advance feature being
activated ADVANCE will be shown on the display until the next programme switching time.
The system ON indicator will also be illuminated.
Press BOOST
button:
Your system will
be boosted for
1 hour
Press ADVANCE
button once to
move to the
next ON/OFF
time
At any time
during a BOOST
period press
BOOST again to
return to normal
programming
To cancel the
advance press the
ADVANCE button
again. This will
return the unit
to its normal
programme
AUTO
ALL DAY
24 HRS
OFF
AUTO
ALL DAY
24 HRS
OFF
6:35
6:35
PM
PM
RUN
CLOCK
PROG
RUN
CLOCK
PROG
BOOST
ADVANCE
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Programme Override Facilities
With the CentaurPlus C17-ZW timeswitch operating in the normal running mode it is
possible to alter the functionality of the programme by means of the SELECT button.
The options include:
AUTO - Timeswitch follows all programmed ‘ON’ and ‘OFF’ times.
ALL DAY - Timeswitch operates from 1st ‘ON’ time until 3rd ’OFF’, ignoring all
switching times in between.
24hrs - Timeswitch will be constantly ‘ON’.
OFF - Timeswitch will be constantly ‘OFF’, there is the ability to turn off the
heating during the summer without altering the programme times.
Boost is still available.
All of the settings above will be permanent, i.e. unaffected by programme times, until
alteration by the user.
The diagram below illustrates how to alter the setting, it assumes that the programme is
in the AUTO mode to begin with.
Press SELECT
once.
Programme
goes from
AUTO to
ALL DAY
Timeswitch
will operate
from 1st ON
until 3rd OFF
period
Press SELECT
again.
Programme
goes from
ALL DAY to
24 HRS
Timeswitch
will be
continuously
ON
Press SELECT
again.
Programme
goes from
24 HRS to OFF
Timeswitch
will be
continuously
OFF
Press SELECT
again.
Programme
goes from
OFF to AUTO
Programme
will return
to normal
ON and OFF
times
AUTO
ALL DAY
24 HRS
OFF
6:35
PM
AUTO
ALL DAY
24 HRS
OFF
6:35
PM
AUTO
ALL DAY
24 HRS
OFF
6:35
PM
AUTO
ALL DAY
24 HRS
OFF
6:35
PM
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Setting Time of Day and Date
Once the year is set and the
ENTER button is pressed the
process is complete and the
display will return to the run
position
Check that the correct time and DAY are
showing in the display. If the wrong day is
showing in the display that would indicate
that the date has not been set correctly and
the above process should be repeated
Press the
set button
until the set
indicator
is next to
the ‘clock’
position
Use the
+ and –
buttons
to adjust
the hour
and press
ENTER
Use the
+ and –
buttons to
adjust the
minutes
and press
ENTER
Use the
+ and –
buttons
to set
the date
and press
ENTER
Use the
+ and –
buttons
to set the
month
and press
ENTER
Use the
+ and –
buttons
to set
the year
and press
ENTER
The CentaurPlus C17-ZW timeswitch has a built in clock and calendar. This will mean that
you will need to enter the date as well as the time on initial set up or if the factory re-set
has been used. Having done this, the clock will automatically adjust for BST/GMT time
changes throughout the year.
Resetting the Timeswitch
Electronic equipment can in some circumstances be affected by electrical interference.
If the timeswitch display becomes frozen or scrambled; or if you wish to revert back to
the default time settings please reset by pressing the SET and SELECT buttons together as
shown below.
After initial installation it is advisable, before programming the CentaurPlus ZW for the first
time, to reset the unit. Resetting can only be achieved with the power ‘ON’ by pressing
the SET and SELECT buttons together. This will return the timeswitch to the factory set
default times.
SET
SELECT
Press the SET and SELECT buttons
together then release the buttons
and the timeswitch will return to
preset factory settings
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Setting the On and Off Times
To alter these settings please proceed as follows:-
The default time settings shown above are preset at the factory
NB. The factory default settings for the 2nd ON/OFF times are both set at 12:00pm
(midday) which cancels this ‘ON’ period giving 2 ON/OFF periods for the day. If a midday
‘ON’ period is required set the 2nd ON and OFF times accordingly. If not press ENTER twice.
1st ON 1st OFF 2nd ON 2nd OFF 3rd ON 3rd OFF
6.30AM
8.30AM 12.00P
M
12.00P
M
4.30P
M
10.30P
M
DEFAULT TIME SETTINGS
Press the
SET button
until SET
indicator
is next
to PROG
position
Repeat this
process for
2nd and 3rd
settings
Use the PLUS and MINUS buttons to
select day required and press COPY.
‘IN’ is displayed to confirm the copy.
Repeat for other days as required
Press ENTER. Use the plus and minus
buttons to select the day required
and press ENTER. Set 1st, 2nd and
3rd times as before. To repeat for
other days go to 2, to copy go to 1
To transfer to independent times
for other days go to 2 or to finish
programming press the SET button
until the SET indicator is in the RUN
position
To finish programming press the SET
button until the SET indicator is in
the RUN position
Use PLUS
and
MINUS
buttons
to adjust
day
Use PLUS
and
MINUS
buttons
to adjust
1st ON
time
Enter the 3rd
OFF time and
the word COPY
is displayed
To set independent
times for other
days go to 2
To follow the copy
route and repeat all
programmed times for
another day go to 1
Use PLUS
and
MINUS
buttons
to adjust
1st OFF
time
Press
ENTER
Press
ENTER
Press
ENTER
1
2
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Relay Operation:
The relay of CENTAURPLUS C17-ZW will operate only when it is operating in an ON schedule
and it has received an ON command from the controller (Basic Set or Binary Switch Set).
If CENTAURPLUS C17-ZW is operating in an OFF schedule or it has received an OFF command
from the controller CENTAURPLUS C17-ZW will turn OFF the relay.
Installation and connection should only be carried out by a suitably qualified person and
in accordance with the current edition of the IEE wiring regulations.
WARNING: Isolate mains supply before commencing installation.
An example circuit diagram for a typical combi boiler installation is shown below. This
diagram is schematic and should be used for guidance only.
For the installer
N
N
E
L
L 1 2 3 4
For precise terminal
connection information
please refer to boiler
manufacturer's instructions
REMOVE LINK
IF REQUIRED
TERMINALS L-2
SHOULD NOT
BE LINKED
BOILER LIVE OUT
SWITCHED LIVE
RETURN TO BOILER
MAINS
SUPPLY
E
N
L
COMBINATION BOILER TERMINALS
CONTROLLER
Wireless link
CentaurPlus ZW
8
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Fitting the backplate
Once the backplate has been removed from the packaging please ensure the timeswitch
is re-sealed to prevent damage from dust, debris.
The backplate should be fitted with the wiring terminals located at the top and in a
position that allows a total clearance of at least 50mm around the unit.
Direct wall mounting
Offer the backplate to the wall in the position where the timeswitch is to be mounted,
remembering that the backplate fits to the left hand end of the control. Mark the fixing
positions through the slots on the backplate (fixing centres of 60.3mm), drill and plug the
wall, then secure the plate in position. The slots in the backplate will compensate for any
misalignments of the fixings.
Wiring box mounting
The backplate may be fitted directly onto a single gang steel flush wiring box complying
with BS4662, using two M3.5 screws. CentaurPlus controls are suitable for mounting on
a flat surface only; they must not be positioned on a surface mounted wall box or on
unearthed metal surfaces.
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Electrical Connections
All necessary electrical connections should now be made. Flush wiring can enter from the
rear through the aperture in the backplate. Surface wiring can only enter from beneath
the timeswitch and must be securely clamped. The mains supply terminals are intended
to be connected to the supply by means of fixed wiring. Recommended cable sizes are
1.00 or 1.5mm.
CentaurPlus timers are double insulted and do not require an earth connection but an
earth connection is provided on the backplate for terminating and cable earth connectors.
Earth continuity must be maintained and all bare earth connectors must be sleeved.
Ensure no earth conductors are left protruding outside the central space enclosed by the
backplate.
Internal diagram - C17-ZW
The CentaurPlus ZW has voltage free contacts.
A link L-2 is required for
mains voltage applications
Rear view of CentaurPlus timeswitch
Battery reserve
The battery must be commissioned prior to fitting the timeswitch to the backplate. This is
achieved by the means of a commissioning strip situated in the back of the unit. Pull out
the battery commissioning strip at the back of the timeswitch and re-insert the battery;
the reserve is now activated. When the timeswitch is running the battery reserve clock
display will disappear. This is to prolong the life of the battery.
N L 1 2 3 4
230V 50V COMM OFF ON
1
2
4
3
+
PULL TO REMOVE
1 - RATINGS LABEL
2 - BATTERY
3 - CONNECTOR PINS
4 - PRODUCTION DATE LABEL
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Fitting the timeswitch
End view of CentaurPlus timer
If surface wiring has been used, remove the knockout/insert from the bottom of the
timeswitch to accommodate it.
Loosen the two ‘captive’ retaining screws on the bottom of the backplate. Now fit the
timeswitch to the backplate, ensuring the lugs on the backplate engage with the switch.
Swing the bottom of the timeswitch into position ensuring that the connection pins on
the back of the unit locate into the terminal slots in the backplate.
Tighten the two captive retaining screws to fix the unit securely.
Then switch on the mains supply.
On completion of the installation please reset the timeswitch as detailed next;
Resetting the timeswitch
On the CentaurPlus press the SET and SELECT buttons together. Then release the
buttons and the timer will return to preset factory settings
The preset factory settings are illustrated on page 6.
The unit is now ready to be signed on to a Zwave network.
SET
SELECT
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Instructions for pairing CentaurPlus ZW
This devices use the latest Z-Wave wireless communication technology to give a reliable
wireless link that should not suffer from interference from other nearby devices.
Follow these steps to ensure that the CentaurPlus C17-ZW will communicate satisfactorily
with its controller.
Inclusion/Exclusion
If the display against the radio aerial symbol is not present it means the device is not
included in any network.
For inclusion, put the controller in inclusion mode and press and hold the ‘Boost’ and
‘Enter’ buttons on the front of the CENTAURPLUS C17-ZW . Once included the indictor
next to the radio symbol will appear (solid)
Now check the CentaurPlus ZW is receiving signals from the controller by turning
CentaurPlus ZW to an ‘On’ setting with the red indicator light lit. Now send an on/off
command from the controller.
N.B. There is a half second delay in switching On and Off on receipt of the commands.
There will be an audible ‘click’ from the CentaurPlus ZW when the relay toggles.
For exclusion put the controller in exclusion mode and
Press and hold the ‘Boost’ and ‘Enter’ buttons on the
front of the CENTAURPLUS C17-ZW until an indicator
disappears in its display against the radio aerial symbol.
If the Icon next to the RF symbol is flashing, then the
unit has lost communication with the controller, try to
move the controller closer.
Press and hold ‘BOOST’ and ‘ENTER’
buttons to ‘SIGN ON’ or ‘PAIR’ the
HRT4 ZW thermostat
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Z-Wave Device Classes Implemented Device Class
Generic BINARY SWITCH
Specific SPECIFIC TYPE NOT USED
Basic ROUTING SLAVE.
Command Classes Description
Manufacturer Specific SECURE CONTROLS UK LTD
Version Provides the version number of the software
Binary Switch Supports SET and GET to control the relay
Basic The Basic Command Class has been mapped to the Binary
switch Command
Class as follows:
Basic SET Set the Relay Status.
Basic GET Relay State GET.
Basic REPORT Relay State REPORT
Application Status Application Busy Command has been Implemented for the
SET command. While CentaurPlus C17-ZW is in a scheduled
off period the SET command will be queued and executed
when the unit is entering an active state.
Application Reject Request Command – Not implemented
Note: All command classes are version 1 unless otherwise stated.
Note: The CENTAURPLUS C17-ZW is mains operating device and a routing slave so it will route the RF messages in network.
The device classes supported are given below.
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General Information
BATTERY
The timeswitch is fitted with a non-rechargeable, long life battery, which will maintain the
programmed time settings for a minimum of ten months with the supply disconnected.
THIS SHOULD BE SUFFICIENT TO COVER POWER INTERRUPTIONS DURING THE LIFE OF THE UNIT.
During power interruptions the display will be blank, after 3 days the current time of day
will be lost. These measures are to prolong the battery life.
SERVICE AND REPAIR
This timeswitch is NOT user serviceable. Please do not dismantle the unit.
In the unlikely event of a fault developing please refer to the RESETTING THE TIMESWITCH
section of this user guide shown above. If this fails to resolve the problem please contact
your installer, a local heating engineer or a qualified electrician.
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Timeswitch specification CentaurPlus ZW
Contact Rating 3 (1) Amps 230V AC
Contact Type Micro-disconnection changeover
Supply 230V AC 50Hz only
Class A Software Type 1 Control
Case Material Thermoplastic, flame retardant
Auto BST/GMT changeover
Display Back lit liquid crystal
Battery Life 10 months continuous operation (minimum)
Displayed Time adjustments 1 minute steps
Operating periods per day - 3 per day
(Separate programmers possible for each day of the week)
10 minute steps
Override 1 hour boost, 1 hour extension to On period, instant advance
Mounting Industry standard 6 terminal plug in wall plate
Design Standard EN60730-2-7
IP30
EN300-220 R & TTE Directive
EN301-489
Transmitter Frequency 868MHz
Voltage free
Pollution Degree 2
Operating Temperature Range 0°C to +40°C
Dimensions 84mm x 150mm x 29mm
Clock 12 hour AM/PM
For further replacement timeswitch exchange information, please see the ‘Programmer
Wiring and Replacement Guide’ at www.horstmann.co.uk Use the categories shown
under CentaurPlus C11 and C17.
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Leaflet number P84365 Issue 1
Secure Controls UK Limited
South Bristol Business Park, Roman Farm Road, Bristol BS4 1UP England
Tel: +44 (0) 117 978 8700 / Fax: +44 (0) 117 978 8701 / e-mail: homes@securetogether.com
www.securetogether.com
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