SyxthSense Ltd
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2004 SyxthSense Ltd – 07/2004
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PS
TH6.21
– 5/6
Appendix A: Dip-switch
and address setting
The goal of this appendix is to give more information to know and correct handle with dip-switches.
In Fig. 5 is shown the 8 way dipswitch mounted on the internal circuit of DTP A80 BC. 8 way
dipswitch means that it is a group of 8 mini-switches. In fact each small white peg visible in its
surface is a switch. Every switch has two possible position, 0 and 1, down and up. The position can
always be changed by shifting up or down the small peg using the point of a small screwdriver.
Following there are some pictures of 8 way dip-switch with different combinations set.
In the 8 way dip-switch can be set up to 256 different combinations. In the table of Fig. 6 are shown,
as an example, all the possible combinations for the former half of the dip-switch. Those
combinations are valid even for the latter half. By the dip-switch combination a unique code called
“address” is established. The code is needed at the receiving side to identify the thermostat and to
“link” it to the desired output relay. The address has to be chosen randomly taking care that it is
different from the other thermostats’ addresses that could be installed in the same system or in the
close area.
Troubleshooting
TROUBLE SHOOTING
SYMPTOM
PROBABLE
REASON
REMEDY
In the heating mode, even if
the set-point knob is turned to
the highest temperature
position, the red LED (2) is
always turned off and the
relevant output in the receiver
unit remains Off.
The red LED (2) is not meant
to continually display the state
of the relay output. The output
relay does not switch ON
immediately, its state is
updated every interval of time
which could be 3 or 10
minutes (see ‘Operation’
section).
It’s a normal operation mode.
The batteries are discharged,
or they are inserted in a wrong
way; the polarity must be
respected.
Insert good batteries in the
correct way. ‘Maintenance’
section explain how to do this
correctly.
When the batteries are
inserted for the first time, the
LED (2) does not turn on for 2
seconds.
If the batteries were already
placed recently, due to the
very low power consumption
of the circuit, some energy is
still present even if there is not
any supply, so the thermostat
behaves like batteries were
never removed.
Press for a while the reset
button (12) Fig. 5, to restart
the internal electronic circuits.
When inserting batteries,
even pressing the reset button
(12), the LED (2) does not
turn on for 2 seconds, it just
turn on for a short flash, and
the thermostat doesn’t
operate.
The batteries are exhausted.
Insert good batteries in the
right way. ‘Maintenance’
section explain how to do this
correctly.
In test mode, the LED (2) in
the thermostat lashes
correctly but the relevant
output in he receiving unit
remains always OFF.
The thermostat’s address was
not successfully self-learned
by the receiver unit, or the
self-learning procedure has
not been performed on any
channel in the receiver unit.
Please follow the ‘self-
learning’ procedure described
on the receiver unit’s
instruction sheet in order to
‘link’ the transmitter to the
desired channel.
