ThermoPro - Thermostat Vemer - Free user manual and instructions

Product Type	Weekly chronothermostat for radiators
Brand	Vemer
Model	ThermoPro
Power Supply	2 x 1.5V AA alkaline batteries
Battery Life	Up to 5 years (with low battery indication)
Regulation Type	PID with response time less than 3 minutes
Operating Temperature	0°C to 50°C
Storage Temperature	-20°C to +70°C
Protection Degree	IP20
Dimensions (WxHxD)	52 mm x 83 mm x 65 mm
Display	LCD with 4 alphanumeric digits
Valve Compatibility	M30x1.5 thread; Danfoss RAV, RA, RAVL (with adapters)
Modes	Automatic (AUTO) and Manual (MANU)
Daily Switchings	Up to 4 comfort and 4 economy periods per day
Child Lock	Yes, disables keys and selector wheel
Holiday Function	Yes, set return date/time and temperature
Window Function	Yes, detects temperature drop and closes valve
Offset Correction	Yes, adjusts temperature reading
Anti-Freeze Function	Opens valve if temperature falls below 6°C
Calcification Protection	Weekly valve exercise on Friday
Display Off (Standby)	Yes, turns off display after 30 seconds
PC Programming	Via PC.ThermoPro programmer and Mini-USB
Installation	Requires qualified person; adaptation to valve needed
Safety	Do not install if damaged; use alkaline batteries only
Spare Parts	AA alkaline batteries (1.5V); adapters for valve types

Frequently Asked Questions - ThermoPro Vemer

How do I set the date and time on ThermoPro?

After inserting batteries, the display prompts for date and time. Use the selector wheel to adjust values and press OK to confirm. The sequence is: year, day, month, hour, minutes. For later changes, press MENU, select TIME, and repeat.

How do I program weekly heating schedules?

Press MENU, select PROG, and confirm. Choose a day or group (e.g., D1-5 for weekdays). Set up to 4 comfort and 4 economy switching times per day. Use the selector to set time and confirm with OK. Unused switchings show as --:--.

How do I use the holiday function?

Press MENU, select HOLI, and confirm. Set the return date and time, then choose a temperature or valve status (OFF for closed, ON for open). The holiday symbol appears on the display.

How do I enable child lock?

Press and hold the OK and ☺ keys simultaneously for 2 seconds until the padlock symbol appears. To disable, repeat the process until the symbol disappears.

What does error code E2 mean?

Error E2 indicates the valve stroke is too short. Try opening and closing the valve manually several times or replace the batteries. If the problem persists, reset the device by removing the batteries briefly.

How to adjust temperature offset?

Press MENU, select OFFS, and confirm. Use the selector wheel to set the correction factor (e.g., +2.0°C if the thermostat reads 21°C but room is 19°C) and press OK.

How to use the timer function?

Press the Ⓧ key. Set the timing (1 to 24 hours) and confirm. Then set the desired temperature and confirm. During timed mode, the selector and keys are inactive. Press MENU to cancel.

How to install ThermoPro on a valve?

First, unscrew the old thermostatic head. If needed, attach the appropriate adapter. Screw the coupling ring onto the valve. Insert ThermoPro into the ring until it clicks. Ensure the device is in INST mode during installation.

How to reset to factory settings?

Press MENU, select RES, and confirm. The display shows OK. Press OK again to confirm, or press MENU to exit without resetting.

How to replace batteries?

To access the battery compartment, use your finger to lever the hook on the battery lid. Insert two AA 1.5V alkaline batteries with correct polarity. Use only alkaline batteries to avoid damage. After replacement, date and time are retained.

USER MANUAL ThermoPro Vemer

1. Batteries compartment;
2. Sensor temperature;
3. Selector wheel;
4. Function keys: MENU - OK -
5. Mini-USB connector for
   PC.ThermoPro connection
6. Display LCD
7. Area with the 4 alphanumeric
   digits;
8. Profile indicators: comfort/
   economy ranges day and time
9. "Child protection" function
   indicator
10. Battery replacement indicator;
11. System active indicator;
12. ECONOMY active indicator
13. COMFORT active indicator;
14. "Holiday" active indicator;
15. AUTO or MANUAL mode active
    indicato

14 13 12

Programming menu

By pressing MENU key you will arrive at the programming menu. With the

selector wheel you navigate among the eleven choices described here below:

MODE to select AUTO mode (automatic) or MANU (manual)

PROG setting and programming of environment profiles

TEMP setting of COMFORT temperature (Tmax) and ECONOMY (Tmin)

TIME setting of current date and time

WINW setting of function parameters "open window

RES reset of the initial factory programming (Reset)

ADAP start of adaptation cycle to valve

HOLI setting of "holiday" function

INST setting of installation/removal of chronothermostat

OFFS setting of "offset" temperatu

STBY setting of "standby" function

VERS information version Sw product

DST daylight saving time

Error messages

Error

Cause

Solution

E1 No adaptation possible. Install ThermoPro on the valve.
E2 The valve stroke is too short. Open and close the valve several
times manually or replace the
batteries.

E3 Motor movement is not possible. Does the valve stem move freely?

INSTALLATION

The Ground Truth image displays a single, solid horizontal line. According to Rule 2 (UNDERSCORE & LINE RULES), this is a stylistic or background line, not a placeholder underscore. Therefore, the OCR result must ignore it and output nothing or only meaningful text. The provided OCR content is "\_\_\_\_", which consists of four underscores. This is an incorrect interpretation of the line as a placeholder, violating the rule that stylistic lines must be ignored. The OCR has hallucinated underscores where none should exist based on the GT's visual context. Hence, the OCR result is inconsistent with the Ground Truth.

Inserting/replacing batteries

To access the battery compartment, make lever with your

finger on the hook of the battery lid as shown in the picture.

Insert two AA 1.5V alkaline batteries of long life, paying attention to the indicated polarity.

attention to the indicated polarity Warning: use only alkaline batter

Setting time and date

At first inserting the batteries, you must enter the date and time.

Use the selector to set the value and OK to conifrm

The sequence of values is: year, day, month, time, minutes.

--> For next changes press MENU and with the selector choose TIME.

--> In case of battery replacement date and time are not lost.

ThermoPro, after a preparation phase (indicated on the display by PREP), prepares

itself in INST mode. In this condition it can be installed on the valve.

User manual

CHRONOTHERMOSTATS FOR RADIATORS

⚠️ Read all instructions carefully

Weekly chronothermostat designed for installation on thermostatically-controlled valves and for the adjustment of environment temperature.

Code Model Description

VE740700 ThermoPro Weekly chronothermostat for radiators

VE742300 PC.ThermoPro Programming key

SAFETY WARNINGS

During product installation and operation it is necessary to observe the

following instructions:

1) The instrument must be installed by a qualified person.

2) Do not install the instrument if any part of it is damaged.

TECHNICAL SPECIFICATIONS

• Power supply: 2 x 1.5V batteries (AA type)
• Battery life: 5 years (with depleted batteries indication)
• Regulation type: PID with a response time lower than 3 minutes
• Operation:
- automatic, with two levels of temperature (comfort and economy)
- manual, with temperature set using the selector wheel
• Maximum number of daily switchings: 4 in comfort and 4 in economy
• Operating temperature: 0 ÷ 50^ C
• Storage temperature: -20 ÷ +70^
• Protection degree: IP30
• Dimensions (WxHxD): 52x83x65 mm

- valves with thread measure dimensions of M30x1.5 (Heimeier, Junkers

Landys+Gyr. MNG. Honeywell, Braukmann....)

· Danfoss RAV, RA, RAVL

The Ground Truth image displays a single, solid horizontal line, which is a stylistic or background element (like a rule line on paper). According to Rule 2, such lines must be ignored by the OCR result. The provided OCR content is "____", which consists of underscores. Underscores are not equivalent to a solid line and are not permitted under the “Stylistic/Background Lines (Ignore)” rule. Outputting underscores for a stylistic line is incorrect because it misinterprets the line as a placeholder fill-in-the-blank area. Since the OCR output incorrectly rendered a stylistic line as underscores (which should be ignored), this violates the rule. Therefore, the OCR result is inconsistent with the Ground Truth.

AdapterNo adapter
valves with thread measure dimension of M30X1.5	Danfoss RAV (plastic stem must be plugged on the valve tapped)	Danfoss RA	Danfoss RAVL

Installation on the valve

ThermoPro can be installed on any type of thermostatically-controlled valve shown in technical specifications, without the need to interrupt the heating circuit. The installation takes place via the coupling ring and, in some cases, with the use of the appropriate adapters.

1. Unscrew the manual thermostatic head and remove it from the valve

2. Choose, if necessary, a suitable adapter and fix it to the valve

3. Screw the coupling ring

4. Insert ThermoPro in the coupling ring until it dicks in confirmation of hooking.

Warning: do not apply excessive efforts in fixing ThermoPro on the coupling ring. Always make sure that during the installation the ThermoPro is in INST position.

Adaptation to the valve

Press MENU key and scroll with the wheel until the display shows ADAP: Press OK: the ThermoPro will be able to start the adaptation to the valve. This operation may take a few minutes. After successful adaptation, the device returns to normal mode. --> If you need a new adaptation, repeat the procedure.

--> If you receive the error message E2, remove the batteries for a short period in order to reset the device.

Removing the ThermoPro

To remove the ThermoPro go to ON of the menu (MENU --> TEMP --> ON) and wait for a short period. Then press the quick release button on the device and pull ThermoPro out of the ring coupling.

OPERATION

Setting of a program (AUTO)

You can set 4 periods of comfort and 4 periods of economy each day.
You can set a different program for each day of the week or a common programming to several days (grouping):
D1-5 = same program from Monday to Friday
D1-6 = same program from Monday to Saturday
D1-7 = same program from Monday to Sunday

For unplanned days remains active the factory program (switching in comfort at 06:00 o'clock and switching in economy at 22:00 o'clock).

1. Press MENU with the selector choose PROG and confirm with

The display shows DAY 1 (Monday)

1. With the selector choose the desired day (or a grouping) and

2. With the selector choose the desired day (or a grouping) and confirm with OK. On the display flashes the time of the first

switching in COMFORT.

1. With the selector set the time and confirm with OK, 0

display flashes the time of the first switching ECONOMY.

1. With the selector set the time and confirm with OK. Proceed with the setting of the

other switchings. Switchings in COMFORT and ECONOMY not activated are displayed

as "--:--".

Advanced functions and operations

TIMER FUNCTION

With ThermoPro it's possible at any time to exclude for a settable interval of time the automatic program.

1. Press the key on the display flashes the value of the minimum timing 1H

2. With the selector, set the desired timing between a minimum of 1H and a maximum of

3. With the selector, set the desired timing between a minimum of 1H and a maximum of 24H and confirm with OK

4. On the display flashes the set temperature, with the selector, set the value of desired

temperature and confirm with OK

During operation in TIMED mode, the selector wheel and the keys OK and ☺ are

inactive. To cancel the TIMED system, press the key MENU.

OFFSET

It's possible that shelves, curtains, etc.. near the radiator hamper correct detection of the environment temperature. In this case it's possible to enter a correction factor OFFSET: 1. Press [WWW] choose OFFS and press [OK].

1. Press MENU, choose Off 5 and press OK

2. On the display flashes the Offset temperature

3. On the display hashes the offset temperature

4. With the selector, set the desired correction factor and confirm with

5. With the selector, set the desired correction factor and confirm with OK; Example: If the temperature on the chronothermostat is 21°C but the temperature

Example: If the temperature on the chronothermostat is 2.1 °C but the temperature detected in the environment is only 19°C, enter a correction factor of +2.0°C

WINDOW FUNCTION

If you open a window and consequently the temperature drops significantly, ThermoPro closes the valve for a settable time in order to save energy; during this time, the display shows the symbol ANTIFREEZE.

1. Press MENU, select WINW

2. On the display flashes the set sensitivity MID; with the selector, set the sensitivity of

desired detection: HIGH = High, MID = Average, LOW = Low.

Confirm with OK

1. On the display flashes the set closure time 10M (10 minutes); with the selector, set the

desired timing and confirm with OK

At the end of the timing the chronothermostat returns to normal operation.

HOLIDAYS FUNCTION

In case of prolonged absences, you can set the date and time of return and the temperature you desire to set for this period of absence:

1. Press MENU, select HOLI and confirm with OK

2. On the display flashes the current date, for example: 6:01 (GG.MM):

set the return date and confirm with OK

1. On the display flashes the entire time after the current one; with the selector, set the

return time and confirm with OK

1. On the display flashes OFF (valve closed, i.e. the factory programming); with the

selector, as an alternative to the closed valve, you can set the desired temperature;

confirm the final choice with OK.

On the display appears the set temperature or the chosen valve status (OFF closed, ON open) together with the symbol holidays.

HEATING INTERRUPTION (VALVE CLOSURE)

If necessary, you can close the valve and turn off the heating of the room;

1. Press MENU select MODE and confirm with OK

2. On the display flashes MANU and confirm with OK

3. With the selector, lower the temperature until OFF appears and confirm with OK.

Even if the valve is closed, the anti-calcification function remains activated. To deactivate

the function switch to the AUTO mode.

1. If you do not want to program other switchings press OK until starts the

programming of the next day. To exit the programming, press MENU

Setting comfort and economy temperature

The factory settings provide the following values:

ECONOMY = 16°C COMFORT = 21°C. The minimum and maximum setting limits are:

OFF = antifreeze function active (8°C) ON = valve fully open

1. Press MENU with the selector choose TEMP and confirm with OK On the

display flashes the set COMFORT temperature.

1. With the selector set the temperature and confirm with OK On the display

flashes the set ECONOMY temperature

1. With the selector set the temperature and confirm with OK

If the ThermoPro is in AUTO mode, manual setting of the temperature will be maintained until the next change of system, after which the chronothermostat will operate according to the defined profile.

CHILD LOCK FUNCTION

This function disables the keys and the selector wheel, in order to prevent access to

the menu by unauthorized persons. 1. Press simultaneously the key or and @ for 2 sec, until symbol padlock @

1. Press simultaneously the keys (OK) and (O) for 2 sec. until symbol padlock

appears. To remove

To remove the lock, operate in a similar manner until the symbol padlock ④ descovers.

1. Press MENU select RES and confirm with OK

2. On the display flashes OK, confirm with OK or press MENU to exit the function

without canceling the programming.

ANTI-FREEZE FUNCTION

If the environment temperature falls below 6^ , the chronothermostat opens the valve until the temperature rises to 8^ in order to prevent water freezing in the pipes.

CALCIFICATION PROTECTION FUNCTION

Once per week (Friday), ThermoPro performs a cycle of opening and reclosing valve

to prevent the phenomenon of calcification.

DISPLAY OFF

1. Press MENU select STBY and confirm with OK

2. On the display flashes the word OFF, select ON and confirm your choice with OK

After 30 sec. the display turns off and on again by pressing a key or by operating

on the selector wheel, then it turns off after 30 seconds.

To deactivate the function, proceed as above, but select the option OFF.

WINTER-SUMMER TIME CHANGE

1. Press MENU select DST and on the display flashes OFF (winter time now).

2. Select the option ON (summer time now) and confirm with OK

Proceed as above for change form summer time to winter time.

Programming by PC.ThermoPro

ThermoPro key programmer permits a quick and easy

graphical programming on your PC. The Mini USB

connector, that is supplied along with the product, allows

you to download programs between programmer and

ThermoPro.

The mini-USB connector present on the product is

compatible only with the cable of the PC.ThermoPro programmer; do not connect other devices with Mini-USB port to prevent the irreversible damage of the chronothermostat

REFERENCE STANDARDS

Compliance with Community Directives:

2004/108/EC (E M C)

is declared in reference to the harmonized standards

• EN 60730 2.7, EN 60730 2.9

• EN 00730-2-7, EN 00730-2-9