SSR303
One Channel 3 Amp Switch
(Rx Only) - Z-Wave
User and Installation Instructions
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2
The Secure SSR303 receiver is a single channel
receiver originally designed for the control of central
heating which can also be operated by third party
controllers which support ‘Thermostat Mode SET’
commands or ‘Binary Switch SET’ commands.
This SSR303 will act as a repeater once included into
the Z-wave network, providing an alternative
communication route for units which otherwise would
not be within communication distance of each other.
This document provides information specific to the Z
wa ve tec hn ology im pl ement ed , t o en su re
interoperability between the SSR303 receiver and
other Z-wave products.
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The SSR303 receiver unit receives the Z-Wave radio
signals from the 3rd party Z-wave controllers. In the
unlikely event of a communication failure it is possible
to override the system and switch On and Off using the
On/Off buttons on the SSR303 receiver as a local
override.
If the override is used to override the system when it is
functioning correctly then the override will be cancelled
by the next switching operation and normal operation
will be resumed. In any case, with no further
intervention, normal operation will be restored
within one hour of the override being operated.
SSR303 Receiver Unit
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Installing the SSR303
The SSR303 receiver should be
located as near as is practical to
the device to be controlled, as
well as a convenient mains
electricity supply. To remove the
wall plate from the SSR303,
undo the two retaining screws
located on the underside, the
wall plate should now be easily
removed. Once the wall plate has
been removed from the packaging please ensure the
SSR303 is re-sealed to prevent damage from dust,
debris etc.
The wall plate should be fitted with the retaining screws
located at the bottom and in a position which allows a
total clearance of at least 50mm around the SSR303
receiver.
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Installing the receiver
Direct Wall Mounting
Offer the plate to the wall in the position where the
SSR303 is to be mounted and mark the fixing positions
through the slots in the wall plate. Drill and plug the wall,
then secure the plate into position. The slots in the wall
plate will compensate for any misalignment of the
fixings.
Wall Box Mounting
The wall plate may be fitted directly on to a single gang
flush wiring box complying with BS4662, using two M3.5
screws. The receiver is suitable for mounting on a flat
surface only; it is not suitable for mounting on an
unearthed metal surface.
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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.
The mains supply terminals are intended to be
connected to the supply by means of fixed wiring.
The receiver is mains powered and requires a 3 Amp
fused spur.
The recommended cable size is 1.Omm2.
The receiver is double insulated and does not require
an earth connection, an earth connection block is
provided on the backplate for terminating any cable
earth conductors. Earth continuity must be maintained
and all bare earth conductors must be sleeved. Ensure
that no conductors are left protruding outside the central
space enclosed by the backplate.
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SSR303 internal wiring diagram
The receiver has voltage Free contacts.
Fit link between L & 2 for mains voltage applications
Please ensure that all installations comply with current IEE
regulations.
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Receiver status LED
LED indication Unit mode Button usage
Solid Off LED
Flashing Network LED
Unit is currently
excluded from the
network
Off and On - No
function
Network - Network
function
Flashing On LED
(Green) 3s only Solid
Off LED
Unit has been
successfully included
on the network
Off and On - No
function
Network - Network
function
Solid OFF LED
Unit is reflecting the
status Off the relay
unit. The output is
OFF.
Or, unit has finished
the include process.
Or, unit has been
included and has just
been powered up on
the mains
Off and On - switches
channel relay off or on
respectively.
Network - Network
function
This unit has three buttons and three LEDs - ON, OFF and Network (from
top to bottom) that are used as follows:-
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Receiver status LED continued..
LED indication Unit mode Button usage
Solid ON LED Unit is reflecting the
status of the relay
output. The output is
ON.
Solid OFF LED
Solid Network LED
Unit is in failsafe mode
and the relay output is
OFF.
Off and On - No
function
Network - Network
function
Solid ON LED
Solid Network LED
Unit is in Failsafe
mode and the relay
output has been
turned on via the ON
button
Off and On - switches
channel relay off or on
respectively.
Network - Network
function
Off and On - No
function
Network - Network
function
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Connecting to a third party controller
To connect the unit to a 3rd party controller follow these
steps, also known as ‘inclusion’ in Z-wave terminology.
- Ensure the network LED is flashing on the SSR303, if
not follow the steps in ‘Disconnecting from a network’
first.
- Put the 3rd party controller into inclusion mode.
- Press and hold the network button on the SSR303
until the ‘ON’ LED’s start flashing.
- The SSR303 has been included onto the network
when the ‘OFF’ LED goes solid red.
NOTE: If the ON LED does not flash then the include
process has been unsuccessful.
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Disconnecting from a network
To disconnect from a Z-wave network, follow the
steps,below, also known as ‘exclusion’ in, Z-wave,
terminology
- Put the 3rd party controller into exclusion mode.
- Press and hold the network button on the SSR303.
- The SSR303 has been excluded from the network
when the Network LED starts flashing.
NOTE: If the Network LED does not flash the exclude
process has been unsuccessful.
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Node Information Frame - NIF
Pressing and holding the network button for 1 second
will trigger the SSR303 to issue a Node Information
Frame and enter learn mode for 1s. This is useful to
associate/disassociate the SSR303 with a control
group or just to determine the device and command
classes supported. This can be done at any time but will
not provide any indication to the operator.
Z-wave Repeater
This SSR303 will act as a repeater once included into
the Z-wave network, providing an alternative
communication route for units which otherwise would
not be within communication distance of each other.
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Supported Device and command classes
Z-Wave Device Classes Implemented Device Class
Generic Device Class
Specific Device Class
Basic Device Class
GENERIC TYPE THERMOSTAT
SPECIFIC TYPE NOT USED
ROUTING SLAVE
Z-Wave Command
Classes Support
Description
Manufacturer Specific
Command Class
Secure Manufacture ID
Version Command Class Provides the version number of the
Software
Thermostat Mode
Command Class
Only ‘Off Mode’ and ‘Heat Mode’ are
supported within this command class,
which can either set or read.
The SSR303 has a failsafe mode where
by the relay is turned off if a command
has not been received within 60
minutes.
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Supported Device and command classes
Z-Wave Command
Classes Support
Description
Binary Switch Command
Class
Supports SET and GET to control the relay.
Oppose to the Thermostat Command class
there is no failsafe mode.
Multi Channel
Command Class (Ver 2)
This command is used to independently
access the two channels available on the
SSR303.
Note: All command classes are version 1 unless otherwise stated
Basic Command Class The Basic Command Class has been mapped
to the Thermostat Mode Command Class as
follows:
- Basic SET: Not Supported
- Basic GET: Thermostat Mode GET
- Basic REPORT: Thermostat Mode REPORT
Receiver specification SSR303
Power Supply 230V AC 50Hz
Contact type Micro disconnection
Voltage free
Contact rating 3 (1) Amps 230v AC
Operating temperature Range 0-40°C
Double Insulated
Rated Impulse voltage Cat 1 – 1500v
Pollution control Degree2
Enclosure protection IP30
Case material Thermoplastic, flame retardant
Dimensions 86mm x 86mm x 36.25mm
Part Number P84074 Issue Number 3
Cewe Instrument AB
Box 1006
611 31 Nyköping
Tel: +46 8 600 80 60
Email: info@securetogether.eu
Web Site: www.securetogether.eu
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