Seitron TR D03B Instructions Download Page 2

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- ENGLISH -

TRD03B0000SE 036247 270121

holding down the '



' or '



' keys, allows to increase or decrease

the value quickly.

Reset installer configuration

To  reset  installer  configuration,  in  order  to  bring  all  the
parameters  to  factory  default  values,  access  the  configuration
and,  when  the  display  shows  '

Con

', simultaneously press '



and '



' for a few seconds until the screen goes back to normal

mode.

Description of configuration parameters

The installer configuration parameters are shown in table 1 and
explained below.

Some installer parameters may not be displayed as only
the parameters currently required by the configuration are
shown (the configuration value of a parameter, may
exclude one or more subsequent parameters).

P01

: allows to customise the regulation modes that can be

selected with the key ' '. The regulation modes available
are Comfort, Economy and OFF: each of these can be enabled
or disabled by changing

P01

The OFF mode will be replaced by Antifrost mode in case

P02

is set with an antifrost temperature.

P02

: by this parameter the Antifrost temperature can be set:

this will be maintained when the thermostat is turned off.
The antifrost temperature can be set in the range 0.5 .. 25 °C or
disabled by setting the parameter until the value ‘no’ appears.
By factory default this parameter is set at 6 °C.

P03

: room temperature offset.

The detected room temperature can be corrected by ±10.0 °C
with the offset, in order to correct any systematic reading error
due to thermostat positioning in unsuitable areas to detect the
room temperature.
By default the device is set with 0.0 °C offset.

P04

: sampling time.

To  ensure  long  battery  life,  the  thermostat  waits  a  period  of
time between one transmission and another. The period can be
chosen  from  1  to  10  minutes.  Therefore  it’s  normal  that  the
temperature  displayed  is  not  immediately  updated;  moreover
for the same reason it can be necessary to wait some minutes
(up  to  the  sampling  time  value)  to  see  the  receiver's  output
switching. A sampling time of 1 to 3 minutes should be chosen
when  the  heating/cooling  system  is  fast,  while  with  slower
heating  systems  based  on  radiators  or  floor  heating,  even  a
time  of  10  minutes  allows  excellent  accuracy  and  comfort.  In
any case, at any time, pressing the '       ' key forces an update
to  the  receiver.  Choosing  a  longer  sampling  time  will  get  a
longer battery life.

P05

and

P06

: these two parameters set the temperature range

within which the set-point temperature can be chosen when the
thermostat is in heating mode.

P05

is the lower limit and can be

freely set from 5.0 .. 35.0 °C, while

P06

is the higher limit that

can be set in a range from the lower limit, chosen in

P05

, up to

35.0°C.
Therefore, the widest temperature range is 5 .. 35 °C and can
be easily reduced based on installation requirements.

P07

and

P08

: these two parameters configure the temperature

range within which the set-point temperature  can be set when
the  thermostat  is  in  cooling  mode,  with  the  same  logic  of  the
previous two points.
The set-point temperature  limits are  re-defined upon changing
the cooling/heating settings.

P09

: NTC sensor configuration.

The thermostat is set by default prepared to operate with the
internal NTC (

P09= Int

). Alternatively to the internal sensor a

remote sensor can be wired to the connector 'REMOTE
SENSOR', shown with

in Fig. 6 and set parameter P10 as

'Ext': this way the internal sensor is disabled while the external
is enabled. Make sure to use the proper remote sensor type,
and respect the maximum wire length allowed.

P10