SyxthSense Ltd
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www.syxthsense.com
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2004 SyxthSense Ltd – 07/2004
Enquiries: T:
0870 20 80 100
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0870 20 80 200
PS
TH6.23
– 3/4
Mechanical Construction
and Installation
In Fig. 1 is visible the external appearance of the DRP A83 M01.
(1) Two-colour led
red side: output status
green side: quality of communication
(2) Side holes for cover removing.
To install the receiving unit it is necessary to access to the internal parts. When opening the case
always ensure
that the unit is disconnected from the 230V~.
To open the plastic case, remove the frontal panel using a small screwdriver to drive the plastic teeth
(2) shown in Fig. 1 and Fig. 2. Apply a light pressure with the screwdriver between the tooth and
the hole in the plastics, but do not push directly on the tooth in order not to break it. The Fig. 2
represents the plastic box’ section and it shows how to handle the screwdriver correctly.
In Fig. 3 is shown the receiver’s internal layout, and the location of the self-learning button (3).
The mechanical installation consists in fixing the DRP A83 M01 on a wall by two screws, using the
holes with distance between axes of 60 mm.
While working with tools in the screw holes, be careful not to damage the internal circuits or any
other component. Once the electrical installation has been completed, close the plastic case by
carefully positioning the frontal panel so that the hole matches the led (1), then slightly press the
panel in order to make the four plastic teeth (2) snapping.
System set-up
To be allowed to install more thermostats in the close area and to use multi-channel wireless system,
every thermostat and chronostat has its own address selectable in a 8 way dip-switch. So
thermostats with different addresses can work at the same time without interfering each other and
controlling different zones. In order to memorize the address of the thermostat we want to receive
the commands, a simple set-up procedure has to be made.
Step 1.
Set an address in the thermostat, it can be chosen randomly, but attention must be paid if
more than one thermostat is installed in the same building or in the close area, the addresses must
be different.
Step 2.
Turn-on the thermostat in the “Test” mode. In this modality it continuously issues a On and
Off command every 3 seconds. See the relevant documentation for further information. Locate
temporarily the thermostat close to the receiver in order to easy the address self-learning procedure.
Step 3.
After opening the case of the DRP A83 M01 wire it to the 230V~ power supply. At the start-
up the led (1) will perform the sequence “green-red-green-red”.
Step 4.
Execute the self-learning procedure by pressing the button (3) Fig. 3 for one second, until
the led (1) turns-on green. Now the receiver waits for a command, and as soon as it receives ones
from the thermostat transmitter in “Test” mode, it learns his address and memorizes it. When
correctly memorized the led (1) executes another sequence “green-red-green-red”, and then the
receiver returns to its normal working. The address is memorized in a nonvolatile way, so it is
retained and used in the normal working even after a power supply failure. If mistakes occur, it is
possible to execute the self-learning procedure again.
After the self-learning has been done, the receiver’s output will be driven by the thermostat in “Test”
mode, so the relay output will be turned-on and off every 3 seconds. Locate temporarily either the
receiver and the thermostat in the desired final position. Keeping on with the “Test” mode check out
the signal and ensure it is still sufficient: the output relay should turnon and off every 3 seconds.
Check out the green led (1) flashes as explained before.
If the signal is too weak the relay will get stuck always on or always off. We recommend to try out
different location of the receiver, much better performances might be obtain even lightly moving the
device. It is important to install the receiver and the transmitter as far as possible from metal sheets
or reinforced cement walls which could weaken the radio signals.
Electrical Installation
This section explain how to wire correctly the DRP A83 M01, please read carefully the following and
see Fig. 4 which shows the internal terminals and how they are internally connected.
Terminals 1 and 2 are the unit supply input, wire it to the 230V~, terminal 2 is the Neutral. Terminal
3, 4, 5 are the SPDT relay output contacts. In Fig. 4 is shown how to connect a load using the
normally open contact. In this way the load will be supplied when the output is active. Terminals 6
and 7 are inputs for an external clock switch. If the wireless thermostats used in the wireless system
provide a 3°C reduction (such as DTP A80 BC), by connecting an external clock switch the system
will be able to regulate the temperatures with a programmed reduction of 3°C. To enable the
programmed reduction, just wire terminals 6 and 7 to the output contacts of an electronic or
electromechanic clock switch.
