Bpt TH 350 Instructions For Use Manual

THERMOPROGRAM

DIGITAL PROGRAMMABLE

THERMOSTAT

TH 350

INSTRUCTIONS FOR USE

TH350E 24806610 13-03-13

2

Congratulations on the purchase of this TH350 thermostat.
For best performance and to enable the best use of this
programmable thermostat's characteristics and functions
please read this manual carefully and keep it available for
future reference.

WARNINGS FOR THE INSTALLER

• Read the warnings contained herein with care as they
furnish important instructions regarding safe use, instal­lation and maintenance.

• After removing the packaging check the condition of
the unit.

• The system must be installed in compliance with current
safety standards.

• The manufacturer declines all liability for any damage as
a result of improper, incorrect or unreasonable use.

• Should the unit be in need of repair contact only a tech­nical support centre authorised by the manufacturer.

• Failure to comply with the above instructions may com­promise the unit's safety.

THERMOPROGRAM TH350

The TH350 programmable thermostat has been designed
to ensure perfect temperatures any time of day, any day
of the week.
The TH350 features a new temperature control system
and new functions.
The TH350 has been designed to guarantee ideal tem­perature conditions and to adapt itself to all types of sys­tems having differing thermal inertias (convector heaters,
radiant underfloor heating, electric heaters, etc.).
It is possible to choose between differential control mode
and integral proportional control mode (management of
cycles/hour). The latter allows the programmable ther­mostat to reduce the time the boiler is in operation as the
room temperature approaches the desired temperature.
This provides a greater reduction in consumption while
at the same time providing the highest levels of comfort.
The TH350 has new features and functions that include:

• a backlit display;

• the possibility to set boiler ignition down to the quar­ter-hour;

• a new AUTOMATIC ADVANCE function that allows the
TH350 to self-learn the periodicity required to achieve the
desired temperature at any chosen point in time;

• an option to calibrate the measured room temperature;

Use only ALKALINE batteries

• the use of a GSM relay interface which makes it possible

to remotely activate a manual or timer controlled pro­gramme thus ensuring a welcoming return home.
Wall mounting the installation takes only minutes. The
thermostat can be connected to the heating/cooling
installation simply by means of two wires.
Three alkaline LR03 1.5V penlight AAA batteries are
used to power TH350 for over a year. Once installed
the unit is ready for operation based on its permanent
memory standard programme. Based on actual needs,
the programme can be modified as required by setting
the desired temperatures for different times of the day
and week.
The TH350 can be programmed with great ease, even
before it is installed. The spacious backlit display makes
this easier, because at any time it permits the viewing
of all data and programmes which can subsequently be
changed as required.
Pressing the programming buttons causes the display to
light up for about 15 seconds from the last time any key
was pressed.
The thermal differential is programmable from 0°C to

0.9°C. The TH350 can control both heating and air-condi-

tioning systems, and can be installed as a replacement for
a previous on/off programmable thermostat.

Thermal differential is programmable from
0°C to 0.9°C.

Suitable for systems with differing thermal inertias
(convector heaters, underfloor heating, electric
heaters) ensuring best system use with the lowest
possible consumption.

Proportional/integral adjustment programme

Allows for energy consumption optimisation with
maximum room comfort thus reducing boiler
operating times based on the difference between
the set temperature and the room temperature.
The smaller the difference between these tem­peratures the shorter the boiler ignition time will
be compared to previously.

AUTOMATIC ADVANCE function

The TH350 self-adjusts so as to provide the desired
temperature at the pre-selected time.

Boiler ignition and shutdown setting with 15
minute precision

In automatic operating mode the TH350 can
ignite or shut-down the boiler on the half or
quarter of each hour, thus allowing for more pre­cise management of room comfort programmes
and substantially optimising boiler energy con­sumption.

3

+3°C

–3°C

+3°C

–3°C

PI

+3°C

–3°C

+3°C

–3°C

PI

4

The TH350 programmable thermostat is made up of:
main unit

Supports

Calibration of temperature measurement

If the TH350 is not properly installed (e.g. installed
near a heat source), temperature measurement
may be incorrect or may not correspond to the
actual temperature.
To solve this problem, it is possible to calibrate the
reading to within ±3°C and in so doing optimise
comfort and consumption.

Easy and complete daily/weekly 3-level pro­gramming

With the TH350, temperatures for any time of any
day of the week can be programmed in a simple
and intuitive manner. Just a few buttons are used
to set the hourly temperature while at the same
time providing constant on-screen monitoring of
programming progress.

Common domestic installation switch sur­round compatibility

ABB: Series ELOS;
AVE: SISTEMA 45, Series 44, Series BANQUISE;
BTICINO: Series LIVING INTERNATIONAL, LIGHT,

LIGHT TECH, AXOLUTE, LUNA, LIVINGLIGHT (air,
quadre tonde);

GEWISS: Serie PLAYBUS, SYSTEM, CHORUS;
LEGRAND: Series VELA, CROSS;
VIMAR: Series PLANA, IDEA, EIKON, ARKÉ;

+3°C

–3°C

+3°C

–3°C

PI

+3°C

–3°C

PI

A

C

B

D

5

Adapter blanking fittings
(2 white, 2 anthracite grey and 2 aluminium grey)

Back-box

Fixing screws

Front cover
(1 white, 1 anthracite grey and 2 aluminium grey)

6

4

2

1

3

6

5

8 9

11

12

13

14

15

10

16

7

18

1920

22 21

17

1

23

7

SYMBOLS AND EXTERNAL CONTROLS (see fig. 1)

ATTENTION. To turn on the backlight simply press any
key. To enter one of the selected functions (e.g. setting the
clock, etc.) the appropriate button will need to pressed
twice.
The backlight stays on for 15 seconds after the last press
of a button.

INFORMATION DISPLAYED

1

0 ÷ 23

Program display for the hours..

The flashing cursor indicates the hour corre-

sponding to the clock time.
2 Temperature range T1.
3 Temperature range T2.
4 Temperature range T3.
5 1÷7 Select the day.
6 Battery charge status.
7

Digital clock.
8 System bypass.
9 All-purpose programme activation.
10 Start-up and shut-down delay periods.
11 Manual operating mode.
12 Remote activation.
13 Protection against frost.

15 COOLING programme.
When the cooling system is in operation this icon is

animated.

15 HEATING programme.
When the heating system is in operation this icon is

animated.

16

Digital clock.
17 Button to increase temperature, time, etc.
18 Button to select MANUAL or AUTOMATIC oper-

ating mode.
19 Temperature sensor.

ATTENTION. Avoid touching the sensor so as not

to distort the temperature reading.

20 Tab for extracting the main unit of the thermo-

stat from the back-box.
21 ALL-PURPOSE or MANUAL TIMER-CONTROLLED

programme activation button.
22 Button to decrease temperature, time, etc.
23 When this warning appears, it means that the

batteries are exhausted .

8

1

L

1

2

L

24

25 26

27

28 29

30

31

2

9

INTERNAL CONTROLS

To access the internal control buttons extract the tab L
and pull the main unit of the thermostat forwards until it
is blocked as indicated in fig 2.

24 R Reset.
25 Setting the clock and the start-up and

shut-down delay period.

26 P Temperature programming in the three

ranges T1, T2, T3.
Setting of operating parameters.
27 COOLING ( ) HEATING ( ) or OFF MODE

programme selection.

28

0÷23 Decrease of the hour within the ‘Daily’

programme display.
29 0÷23 Increase of the hour within the ‘Daily’

programme display.
30 1÷7 Select the day.
31 C Copy programme.

10

19 - Overall number of system operating hours . . . . . 39

20 - Remote control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

21 - Reset .......................................... 42

22 - Battery replacement ........................... 44

23 - Technical characteristics. . . . . . . . . . . . . . . . . . . . . . . . 45

CONTENTS

Chapter .........................................Page

1 - Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2 - Electrical connections .......................... 17

3 - Setting the clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4 - Heating, cooling and system OFF programming 22

5 - Pre-memorised programmes . . . . . . . . . . . . . . . . . . . 22

6 - Daily programme temperature personalisation 23
7 - Temperature level personalisation for the

heating program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

8 - Temperature level personalisation for the

cooling program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

9 - ALL-PURPOSE programme ..................... 27

10 - Manual operation .............................. 28

11 - System bypass ................................. 29

12 - Frost protection function. . . . . . . . . . . . . . . . . . . . . . . 30

13 - Manual timed program ........................ 31

14 - System ignition and shut-down delay timing

adjustment .................................... 32

15 - Temperature measurement calibration . . . . . . . . . 34

16 - Automatic advance ............................ 34

17 - Thermal differential ............................ 35

18 - Proportional-Integral programming ............ 36

11

1  INSTALLATION

Install the unit in a position which is suitable for correct
room temperature measurement for example on an
internal wall. Avoid installation in niches, behind doors or
curtains, or near heat sources.
The TH350 is designed to be installed within a 3 module
recessed back-box having a depth of 50mm. Proceed as
follows:

• Pull the tab L forwards. The main unit of the thermostat
will follow until it is blocked by two lateral stop tabs (3).
Press the lateral tabs marked by the symbol (fig. 4)
and extract the main unit of the thermostat completely.

• Insert 3 alkaline LR03 penlight AAA 1.5V batteries
within the housing. Make sure the poles face the right
way as shown on the bottom of the housing (fig. 5).

L

1

3

L

1

4

5

Use only ALKALINE batteries

12

ATTENTION. Inserting the batteries the wrong way round
could damage the unit. Once these steps have been
carried out correctly the symbols shown in figure 6 will
appear on the display.

Choose the support (A, B, C or D) and front facing cover
as a function of the surround to be fitted.
To remove the front cover proceed as indicated in figure 7.

76

13

8

10

9

11

BTICINO
(

Light Series, Light
Tech Series, Living
International Series)

VIMAR
(

Plana Series, Eikon
Series)

LEGRAND
Vela Series (Vela
Quadra, Vela Tonda),
Cross Series

Support A Support A

Support BSupport B

GEWISS
Playbus Series
(Playbus, Playbus
Young)

AVE
(

Banquise Series,

SISTEMA 45)

VIMAR
Idea Series (Idea, Idea Rondò)

14

ABB
(

Elos Series)

GEWISS
(

SYSTEM Series)

BTICINO
(

Axolute Series,

Luna Series)

BTICINO
(

Livinglight Quadre)

VIMAR
(

ARCHÉ Series)

BTICINO
(

Livinglight Tonde)

GEWISS
(

CHORUS Series)

12 13

14 15

Support B

Support C

Support B

Support C

15

AVE
(

44 Series)

BTICINO
(

Livinglight AIR)

Support D

2

1

17

16

The trade names Playbus, Playbus Young, System e
Chorus are the property of GEWISS S.p.A

The trade names Light, Light Tech Livinglight, Axolute,
Luna e Living International are the property of BTICINO
S.p.A;

The trade names Plana, Idea, Eikon, Idea Rondò e Arké are
the property of VIMAR S.p.A;

The trade names Vela, Cross are the property of
LEGRAND S.p.A

The trade names Banquise SISTEMA 45 e serie 44 are the
property of AVE S.p.A

Il marchio Elos is the property of ABB S.p.A

Should the necessity arise to change the support then
proceed as indicated in fig. 17.

16

18

3 module
recessed
back-box

Back-box

Support

L

Adaptors

Main unit Support

17

19

• Electrical connections are to made within the back-box
terminal block as indicated in either diagram 20 or 21.

• Paying attention to the UP direction indication use the
screws supplied to mount the unit to the back-box (fig.

19).

• Push the main unit of the thermostat all the way to the
back and then fit the surround.

Insert the locking tab L.

2  ELECTRICAL CONNECTIONS

The wiring will depend on the type of equipment to be
controlled by the thermostat: refer to the diagram in fig.
20 or 21.

KEY

Mains power supply wires
N = neutral
L = live

Relay contacts
C = common
NA = normally open contact
NC = normally closed contact

NC

NA

C

1
2

U1

L

N

TH350

20

LOAD

18

NC

NA

C

1
2

L

N

TH350

U2

M

LOAD

OPEN

CLOSED

21

Remote control inputs
1 input
2 input

Loads
U1 = boiler, circulation pump, solenoid valve, etc.
U2 = motorised valve

NOTE. For connection details, refer to the technical docu­mentation of the device to be controlled.

19

20

22

23

24

25

3 SETTING THE CLOCK

3.1-

Remove the main unit of the unit.

3.2- Press the button twice (fig. 22).
The first press of the button simply activates the back­light.

The minutes digits flash.

3.3- Press button or until the correct value for the
minutes is reached (fig. 23).

3.4- Press button (fig. 24).

The hour digits flash.

3.5- Press either button or until the correct value for
the hour is reached (fig. 25).

3.6- Press button (fig. 26).

The indicator for the days of the week flashes.

3.7- Press button or until the correct value for the
minutes is reached (fig. 27).

3.8- Press button to end the procedure for setting the
time and day (fig. 28).

The colon between the hours and minutes flashes to confirm

21

the operation is complete.

If no button is pressed for 15 seconds, the unit automati­cally exits this procedure, saving the last setting.

3.9- Reinsert the main unit of the thermostat.

Note. Each time buttons or are pressed the numbers
on the display decrease or increase by one. When pressed
and held down the numbers on the display will scroll
slowly for the first five seconds, and then more quickly.

26

27

28

22

4  HEATING, COOLING AND
SYSTEM OFF PROGRAMMING

Press button once to activate the cooling pro­gramme (fig. 29) press the button twice to turn the
system OFF (fig. 30).

Whenever the icon is visible it confirms that TH350 system
control has been bypassed.
For 5 seconds the room temperature reading disappears to
be replaced by .

Press the once again. The heating programme will
restart.

5  ALLPURPOSE PROGRAMME

5.1 - HEATING PROGRAMME

For easier use a heating programme has been mem­orised within the TH350 with the temperature trend
shown in figure 31 from Monday to Friday (1÷5) and in
figure 32 for Saturday and Sunday (6 and 7), where the
fixed temperature levels are:

Range T1 16 °C
Range T2 18 °C
Range T3 20 °C

29

30

31

23

5.2 - COOLING PROGRAMME

The memorised cooling programme includes the tem­perature trend shown in figure 33, where the fixed tem­perature levels are:

Range T1 24 °C
Range T2 26 °C
Range T3 28 °C

If the pre-memorised programmes correspond to your needs
then the TH350 will not require further programming and
will ready tor immediate operation.
To personalise the built in programmes proceed as outlined
in chapters 6, 7 and 8.

6  DAILY PROGRAMME TEMPERATURE
PERSONALISATION

6.1- Remove the main unit of the unit.

6.2- Use buttons 1÷7 to move the day indicator to posi-

tion 1 (Monday) (fig. 34).

The parentheses for the selected day flash.

6.3- Use buttons 0÷23 to move the flashing indicator
to hour 0 on the Daily programme graphic (fig. 35).

Note. When this button is used, the information on the
display changes as follows:
a) The clock shows the hour indicated by the flashing
segment . The colon between the hours and minutes
does not flash.
b) The temperature shown is the value of the selected level
at the time indicated by the flashing segment.

34

32

33

24

35

36

37

6.4- Use button or (fig. 36) to select the desired

temperature range. Then press button 0÷23 to go to
the next hour and select the desired temperature in the
same way (fig. 37).
Continue in this fashion until hour 23 is reached.
Programming for Monday is now complete.

6.5- If the same programme is also to be used for the

following day(s) press button C (fig. 38) The programme
will automatically be copied for those days as indicated
by the corresponding segment.

6.6- To programme subsequent days differently,

advance the day using button 1÷7 and repeat the same
procedure as set forth in point 6.4 (fig. 39).

6.7- Once programming is complete, in order to go

back to the current day and time press button (fig.

40); In any case, this will happen 10 seconds after the

last action.
Any programming task can be performed at any time.
Hourly programming is saved to permanent memory.

38

25

To reset the default parameters, see chapter 21 (Reset).

6.8- Reinsert the main unit of the thermostat.

7  TEMPERATURE LEVEL PERSONALISATION
FOR THE HEATING PROGRAMME

7.1- Remove the main unit of the unit.

7.2- Make sure that the unit is in AUTOMATIC mode.

7.3- Check to see that the heating symbol is displayed.

If not then press button (fig. 41).

7.4- Press button P (fig. 42).

The temperature range for T1 will be displayed and in place
of the current time the symbol together with the value
of the temperature assigned to the T1 temperature range (set
in memory at, 16°C).

41

39

40

42

26

43 44

7.5- Use buttons or (fig. 43) to set the desired tem­perature for T1.

7.6- Press button P to confirm the temperature shown
on the display and pass on to the next temperature level
(fig. 44).

Note. The value assigned to each temperature range is
limited to the values of the range just above or below. For
example, if range T3 corresponds to 20°C and range T1
corresponds to 16°C, the value for range T2 can only vary
between 16.1°C and 19.9°C. If a different temperature
range for T2 is required, for example 21°C, then the range
for T3 must be set at 21.1°C.

7.7- To change the other temperature ranges repeat the
steps described at points 7.4 and 7.5.

The entire graph for the ‘Daily’ programme reappears to
confirm that programming of the temperature ranges has
been completed.

10 seconds after the last action the unit exits the proce­dure and accepts as valid the data inserted up to that
moment.

7.8- Reinsert the main unit of the thermostat.

27

8  TEMPERATURE LEVEL PERSONALISATION FOR
THE COOLING PROGRAMME

Extract the main unit of the thermostat. Select cooling
mode . Then set the desired temperature levels in the
same manner as set forth from point 6.3 on. Reinsert the
main unit of the thermostat.

9  ALLPURPOSE PROGRAMME

The unit includes an all-purpose programme mode that
can be used when on holiday and so on. It may be acti­vated at any time of the current day and remains active
for the rest of that day. It can also be reserved for use on
any day of the week.
The programme stored in permanent memory features
the preset profile for Sundays (7), but it can be custom­ised. To activate this programme for the current day,
proceed as follows.

9.1- Make sure that the unit is in AUTOMATIC operating
mode.

46

45

9.2- Press button (fig. 45).

The symbol confirms that the programme has started.

9.3- Complete the personalisation of the system as out-

lined in paragraphs 6.3 and 6.4.

At midnight the TH350 will return to automatic operating
mode.

9.4- To exit the ALL-PURPOSE programme and return

to AUTOMATIC operating mode press the either button

or .
If the ALL-PURPOSE programme is to be reserved for a
day other than the current one, proceed as follows:

9.5- Make sure that the unit is in AUTOMATIC operating
mode.

9.6- Remove the main unit of the unit.

9.7- Use buttons 1÷7 to move the indicator to the posi-

tion of the chosen day (fig. 46).

In place of the clock, the current hour will be displayed. For
example, at 16.25 the display will reveal 16:00.

28

47

48

49

9.8- Press button (fig. 47).

The symbols appears confirming that the programme for
that day has been saved.

9.9- Complete the personalisation of the system as out­lined in paragraphs 6.3 and 6.4.

9.10- Press button or wait 10 seconds for the thermo­stat to return to AUTOMATIC mode.

At 0.00 on the selected day, the programme will be activated.

To cancel a specific programmed event move the indica­tor to the corresponding day using button 1÷7 and then
press button .
To return to AUTOMATIC operating mode for the current
day press button (fig. 48).
This will happen in any case 10 seconds after the last
action. The all-purpose programme expires at the end
of the day

9.11- Reinsert the main unit of the thermostat.

10  MANUAL OPERATION

If a temperature that is different than the programmed
one is required but without modifying the set pro­gramme then MANUAL operating mode can be accessed
by pressing button (fig. 49).
The event graphic will disappear from the display. The
value of the previously set temperature will now be dis­played which can be changed as required using buttons

and (fig. 50) (The unit's default temperature is 20°C).

29

52

50

51

After about 5 seconds from the last operation, the room
temperature appears.
In MANUAL operating mode, any temperature can be
chosen between 2°C and 35°C. The newly set temper­ature will be maintained until further adjustments are
made or until a different operating mode is selected.

11  SYSTEM BYPASS

System bypass is useful during cleaning, maintenance
work or when absent, etc. The unit simply functions as a
clock and room thermometer.

11.1- Remove the main unit of the unit.

11.2- Press the button twice (fig. 51).

The selection made is confirmed by the symbol activated.

The set temperature reading changes to . After
about 5 seconds from the last operation, the room tem­perature appears.

11.3- Press the button once to return to the heating
programme (fig. 52). Press the button twice to return to
the cooling programme (fig. 53).

11.4- Reinsert the thermostat main unit.

30

53

12  FROST PROTECTION FUNCTION

Even if proportional-integral operating mode has been
selected, in Frost Protection mode the temperature set
for heating mode will be maintained but with differential
control only.

12.1- Remove the main unit of the unit.

12.2- Press the button twice and check that the

symbol is displayed (fig. 54).

12.3- Press the button.

The presence of symbols and on the display confirms
frost protection mode.

The display shows the default frost protection temperature
(3°C) which will remain displayed for 5 seconds (fig. 55).

12.4- Press the or button to select any temperature
between 3°C and 16°C (fig. 56).
If a temperature below 3°C is set then the system will
return to SYSTEM BYPASS mode.

The symbol confirms the return to system bypass mode
(fig. 57).

54

55

56

31

57

58

59

By pressing button (fig. 58) it is possible to switch from
FROST PROTECTION to AUTOMATIC heating mode.
A reset in FROST PROTECTION or SYSTEM BYPASS mode
will cause the system to restart in automatic heating
mode.

12.5- Reinsert the main unit of the thermostat.

13  TIMED MANUAL PROGRAM

If a fixed temperature is to be maintained for a few hours
or a few days (for example, to maintain a comfortable
temperature for a longer period when unexpected guests
arrive, or when an economical temperature is required
during long periods of absence), MANUAL TIMED pro­gramme mode can be activated.
Once the desired duration has been set, the device starts
a countdown. When it reaches zero, the unit switches
from MANUAL to AUTOMATIC mode, resuming the set
programme.

Programming in terms of hours or days

13.1- Make sure that the unit is in MANUAL operating
mode.

13.2- Set the desired temperature using buttons and .

13.3- Press button once to set the hour (fig. 59), twice

to set the days applicable (fig. 60).

If the hours are being set then instead of the current time

will appear on the display. If the days are being set then

will appear.

32

62

61

60

13.4- Press buttons or until the desired number of
hours or days from 1 to 99 is reached (fig. 61).
The count of hours and days includes those when pro­gramming is performed. The remaining part of the hour
and day when the operation is performed is therefore
counted as one hour or as one day.

Note. To return to AUTOMATIC operating mode before the
programmed period expires press the button (fig. 62).

+3°C

–3°C

PI

14  SETTING THE SYSTEM STARTUP

AND SHUTDOWN DELAY PERIOD

It is possible to delay system start-up and shutdown by
15, 30, or 45 minutes. To activate this function, proceed
as follows.

14.1- Make sure that the unit is in AUTOMATIC mode.

14.2- Press buttons 0÷23 (fig. 63).

The display indicates the value of the temperature set for the
hour indicated on the current day.

63

33

64

65

14.3- Press buttons 1÷7 (fig. 64).

The display will show the value of the temperature set for the
indicated time on the various days of the week.

14.4- Press button (fig. 65) once, twice or three times
within 10 seconds to set a delay time of 15, 30 or 45 min­utes and press it again to cancel the setting.
For example, if a comfortable temperature is required for
7:00, the system can be set to start at 6:30.
In this case, set the comfortable temperature for 6:00
with a delay of 30 minutes.
The TH350 will activate at 6:30, maintaining until that
time the temperature set at 5:00.
The indication for the inserted delay is shown in auto­matic mode during the hour in which the delay has been
programmed.
The delay can be programmed for several different hours
during the same day.
The delay can also be applied to the remaining days of
the week by means of the 1÷7 buttons.
These settings are saved to permanent memory (see
chapter 21, Reset).

66

34

15  ALIBRATION OF TEMPERATURE

+3°C

–3°C

MEASUREMENT

If the TH350 is not properly situated (e.g. installed near a
heat source), temperature measurement may be incor­rect or may not correspond to the actual room temper­ature. Use the buttons (backwards) or (forward) to
change the temperature from 0.0°C (default setting) up
to ±3°C in increments of 0.1°C.

Calibration of temperature measurement

15.1- Make sure that the unit is in AUTOMATIC mode.

15.2- Press button P (fig. 66).

On the display, in place of the hour, will be displayed
and, in place of the indication for the temperature, there will
appear .

15.3- Press the buttons (forward) or (backwards)
(fig. 67) until the desired value of correction is arrived at.
This value will be saved to permanent memory, see
chapter 21.

67

68

16  AUTOMATIC ADVANCE

+3°C

–3°C

This function (only in heating mode) allows the
thermostat to automatically adapt the system start-up
time such that the desired temperature is arrived at in a
timely manner.
The advance is calculated as a function of the difference
between the measured and set temperatures together
with the data stored on the characteristics of the instal­lation and the building. The maximum advance available
is three hours.

Example of operation

At 7.00 am the thermostat is set for a temperature of 20°C.
If before 7.00 am. the ambient temperature is below 20°C
the thermostat will advance system start-up so as to obtain
20°C at 7.00 am. Thanks to the self-learning mechanism, the
programmable thermostat memorises the thermal parame­ters of the room in order to be more precise in reaching the
temperature on subsequent days.

35

70

69

71

Automatic advance selection.

16.1- Make sure that the unit is in MANUAL operating mode.

16.2- Press button P twice (fig. 68).

On the display, in place of the hour, will be displayed
and, in place of the indication for the temperature, there will
appear .

16.3 - To set the automatic advance press buttons
(forward) or (backwards) (fig. 69).

On the display, in place of the temperature, will appear.

The automatic advance period will be saved to perma­nent memory, see chapter 21

17  THERMAL DIFFERENTIAL

Selection of traditional adjustment system with
thermal differential adjustable between 0°C and 0.9°C.
This adjustment system is recommended for systems
with extreme variations in outdoor temperature that are
especially difficult to control.

Differential adjustment system selection

17.1- Make sure that the unit is in MANUAL operating
mode.

17.2- Press button P three times (fig. 70).

On the display, in place of the hour, will be displayed
and, in place of the indication for the temperature, there will
appear .

17.3- Press the P button once again (fig. 71).

On the display, in place of the temperature the value of the
set thermal differential value will appear.

+3°C

–3°C

36

17.4- Press button (forward) or (backwards) (fig. 72)
to modify this value as desired.
During operation, setting the differential to 0°C provides
compliance with a minimum start-up/shutdown time of
one minute, regardless of the measured room tempera­ture.

17.5- Press button P to exit programming.

18  PROPORTIONALINTEGRAL

+3°C

–3°C

PI

PROGRAMMING

This type of adjustment allows the programmable ther­mostat to reduce system running times as the room tem­perature approaches the set temperature, thus substan­tially reducing consumption while maintaining excellent
comfort. It is possible to select from among three preset
programmes depending on the type of system to control
(P1, P2 e P3). Alternatively programme P4, which is com­pletely manual, can also be selected (Table 1 on page 39).

Integral proportional adjustment has the advantage of
permitting the management of a wider variety of systems
with respect to the setting of the thermal differential. It
is especially suitable for underfloor and radiant systems.
The difference between the set temperature and the
ambient temperature is just a few tenths of a degree. This
allows for more precise adjustment.

Proportional/integral programme selection (refer to table 1)

18.1- Make sure that the unit is in MANUAL operating mode.

18.2- Press button P three times (fig. 70).

On the display, in place of the hour, will be displayed
and, in place of the indication for the temperature, there will
appear .

18.3 - Pressing buttons (forward) or (backwards) (fig.

72) causes the integrated proportional control system to
be selected.

On the display, in place of the temperature, will appear
(fig.73).

72

73

37

75

74

Programme Cycle duration

Minimum ON time Proportional Range

Type of system

P1 10 minutes 1 minute 1.5°C Base for gas burner,

convector heaters,

zone valves, aluminium radiators

P2 5 minutes 1 minute 1.5°C Electric radiators
P3 20 minutes 2 minutes 1.5°C Radiant or underfloor systems,

cooling

P4 5-10-15-20-25-30-35-40 minutes from 1 to 5 minutes from 1°C to 3°C

Table 1

18.4 - Press button P instead of the time (fig. 74) will

appear on the display.

18.5- Press buttons (forward) or (backwards) (fig.

75) so as to select control system P1, P2, P3 or P4.
Programmes P1, P2 and P3 are fixed programmes, where­as programme P4 can be completely programmed by
the user.

18.6 - If programme P1, P2 or P3, has been selected then
in order to exit programming press button P.

76

38

78

77 80

79

If programme P4 has been selected then press button P
and in place of the hour the display will show . In
place of the temperature will appear (fig. 76).

18.7- Press buttons (forward) or (backwards) to
select the desired cycle time from between 5, 10, 15, 20,
25, 30, 35 or 40 minutes (fig. 77).

18.8 - Press button P (fig. 78).

On the display, in place of the hour, will be displayed and,
in place of the indication for the temperature, there will
appear .

18.9- Press buttons (forward) or (backwards) (fig.

79) to select the minimum start-up and shut-down times
between 1 and 5 minutes.

18.10 - Press button P (fig. 80).

On the display, in place of the hour, will be displayed
and, in place of the indication for the temperature, will
appear.

18.11- Press button (forward) or (backwards) (fig.

81) to modify proportional range between 1 and 3°C.

39

81

82

18.12- Press button P to exit programming.
All parameters for the proportional-integral setting are
saved to permanent memory. See chapter 21.

19  ACCUMULATED SYSTEM OPERATING TIME

The TH350 features an hour-counter (up to 9,999), which
records the system's accumulated number of operating
hours for each temperature level.

19.1- In order to visualise the stored data switch to MANUAL
mode using the button (fig. 82), extract the main unit of
the thermostat and press the C button (fig. 83).
The display will reveal the total operating time for 5
seconds. To reset the counter to zero and start a new
count, press the button while the figures are visible.
The symbol will disappear after 5 seconds.

19.2- Reinsert the main unit of the thermostat.

20  REMOTE CONTROL

By connecting an appropriate interface to the terminal
block connections 1-2 (fig. 19 or 20) it is possible to:

- manually override the operation of the unit in manual
mode,

- activate a special programme at the end of that which
was previously programmed.

- manually override the operation of the unit in manual
mode.

The set temperature refers to the last setting assigned to
the unit in MANUAL mode.

83

40

85

84

This temperature will be maintained until the unit
remotely receives a deactivation command at which
point the TH350 will return to the state it was in before
activation.
It is possible to exit from remote MANUAL mode at any
time by pressing the button.
MANUAL mode activation can be recognised by the
presence on the display of the and symbols (fig. 84).

- Activate a special programme at the end of that
which was previously programmed.

The TH350 stores two different programmes in memory,
one for HEATING mode and one for COOLING mode.
Upon activation of the remote command the programme
for the current mode will be initiated.
When the fixed-time manual program is activated
remotely the symbol will appear.

If no other operations are performed then when the

program reaches its conclusion the TH350 will go back to
the status it was in prior to activation.

To cancel remote control of the fixed-time manual pro­gram press the button.
The default setting of fixed time manual mode is one
hour at 20°C in HEATING mode and one hour at 24°C in
COOLING mode (fig. 85).

Note. When the program is activated remotely the time
remaining within the hour or day will be counted as a full
hour or day.

Fixed-time manual programming by remote control

20.1- Make sure that the unit is in MANUAL mode and
select the HEATING or COOLING mode to which the set
temperature is to be applied.

20.2 - Set the desired temperature using the (forwards)
or (backwards) buttons (fig. 86).

41

86

89

87

20.3- Press button once to set the hour (fig. 87), twice
to set the days applicable (fig. 89).
If the hours are being set then instead of the current time

will appear on the display. If the days are being set

then will appear.

20.4- Press buttons (forward) or (backwards) until
the desired number of hours (fig. 88) or days is reached
(fig. 90) from 1 to 99.

20.5- To save this programme such that it can be activat-

88

90

42

92

93

ed remotely press button .

This setting cannot be verified by telephone.

21  RESET

Operating anomalies, repairs and other technical reasons
may make it necessary to reset the unit.
To reset the unit proceed as follows:

21.1- Remove the main unit of the unit.

21.2- Press button R (fig. 91).

21.3- Reinsert the main unit of the thermostat.

This operation does NOT delete any customised pro­grammes, which will be restored, along with other data,
as soon as the unit is restarted (see table 2 on page 45).
To reset all default settings, proceed as follows:

91

L

1

94

43

Data saved after a reset Data not saved after a reset

- Calibration temperature

- Automatic advance selection

- Differential or proportional integral mode

- Differential temperature

- Integral proportional programme

- Cycle time

- Minimum system start-up time

- Proportional range

- Heating/cooling mode

- Winter temperature for fixed-time manual

- Number of hours for winter fixed-time manual

- Number of days for winter fixed-time manual

- Summer temperature for fixed-time manual

- Number of hours for summer fixed-time manual

- Number of days for summer fixed-time manual

- Ranges T1, T2 and T3 winter and summer

- Summer and winter timer programme

- Activation delay (15, 30 or 45 minutes) for each hour

- Minutes, hours, days of week

- Automatic, manual, Frost Protection or OFF mode (1)

- Manual temperature

- Frost Protection temperature

- Self-learning parameters for automatic advance

(1) When the thermostat is reset in FROST PROTECTION
or OFF mode it will restart in AUTOMATIC HEATING mode.

Table 2

44

97

- simultaneously press buttons , and 1÷7;

- reset the unit.
The TH350 will restart in AUTOMATIC HEATING mode (or
COOLING, if reset in this mode).

22  BATTERY REPLACEMENT

When the indicator flashes on the display, it means
that there is around 1 month left to replace the batteries
(fig. 92). When the indication plus the symbol
appear on the display, the unit is no longer operative
and has set the heating and air-conditioning system to
OFF (fig. 93).

ATTENTION. Failure to replace the batteries in time may
cause damage to the heating system (frost protection is
not ensured).

To replace the batteries proceed as follows:

22.1- Pull the tab L forwards. The main unit of the ther-
mostat will follow until it is blocked by two lateral stop

96

L

1

95

Use only ALKALINE batteries

45

83,5

42

98

tabs (fig. 94). Press the lateral tabs and extract the main
unit of the thermostat completely (fig. 95).
All symbols on the display will disappear.

22.2- Insert 3 alkaline LR03 penlight AAA 1.5V batteries
within the housing. Make sure the poles face the right
way as shown on the bottom of the housing (fig. 96).
After a few seconds the symbols will reappear on the
display. Push the main unit of the thermostat all the way
to the back and reinsert the tab L.

Warning! Inserting the batteries the wrong way round
could damage the unit. There will be approximately 2
minutes available for replacing the batteries.
If the batteries are not replaced with the available period
or if the reset button R is pressed (fig. 91) all settings will
be lost.

To restart the unit, proceed as described in chapter 3.

ATTENTION. Inserting the batteries the wrong way
round could damage the unit.
The use of weak batteries may cause operating mal­functions.

In this should happen then proceed as set forth in
chapter 21.

ATTENTION. Only clean the thermostat with a soft
cloth dampened with water.

23  TECHNICAL CHARACTERISTICS

• Unit for domestic use.

• Independently installed electronic device.

• Display: LCD graphic backlit.

• Power supply: 3 alkaline LR03 penlight AAA 1.5V batteries.

• Autonomy: over 1 year.

• Battery low warning.

• Time available for battery replacement: approximately 2

minutes.

• Relay: max. voltage 250 V, max. current 5A with resistive

load (2A with inductive load).
Type of action: 1B-U.
Available contacts: 1 NO-NC switch contacts.

46

• Three operating modes: MANUAL, AUTOMATIC, SYSTEM
BYPASS

• Daily programming of both heating and cooling.

• Dual mode functionality: DIFFERENTIAL and
PROPORTIONAL INTEGRAL

• Calibration of measured temperature.

• Automatic advance for reaching the set temperature.

• Remote activation.

• System operating hours count from 1 to 9,999.

• The possibility of timer-controlled manual operation.

• Range of adjustment: from +3 to +35°C

• Temperature levels: three, programmable between +3°C
and +35°C

• Frost Protection temperature: adjustable between +3°C
and +16°C.

• Programming: a temperature level for each hour or each
day of the week which can be extended to two levels by
setting the start-up/shutdown delay time.

• Room temperature measuring interval: 15 seconds:

• Thermal differential: adjustable from 0°C to 0.9°C

• Reading resolution: 0.1°C.

• Displayed reading range: from 0°C to +40°C

• Precision: ≤ ±0.3°C.

• Class A software.

• Degree of pollution: 2.

• Impulse voltage: 4 KV.

• Maximum control unit temperature: 40°C.

• Protection rating: IP30.

• Class II electrical insulation.

Use only ALKALINE batteries

• Operating temperature: from 0°C to +40°C

• Dimensions: see figure 98.

47

DISPOSAL

Do not litter the environment with packaging materials:
make sure it is disposed of according to the regulations
in force in the country where the product is to be used.
When the equipment reaches the end of its life cycle,
avoid discarding it within the environment.
The equipment must be disposed of in compliance
with current regulations, recycling its component parts
wherever possible.
Components that qualify as recyclable waste feature the
relevant symbol and material acronym.

TH350E 24806610 13-03-13

BPT S.p.A. a Socio Unico
Via Cornia, 1
33079 Sesto al Reghena-PN-Italy
[e-mail]