Master unit

PT41-M Order number: 4411

Electronic unit called MASTER (main), which is able to regulate the temperature in 6 rooms and simultaneously control the boiler and the circulating pump.

4 719 Kč 3 900 Kč without VAT 1,68 bez DPH (RP není součástí ceny)

Description of product

Properties PT41-M:

NEW VERSION FROM 1.12.2014 (firmware 12.02)!

Offers the following improvements:

  • control the system via internet
  • connection of temp. sensors or room-thermostats
  • option of priority of switching zones
  • temperature correction
  • switching the pump only by the current unit
  • system can be used not only for hot water underfloor heating
  • the ability to sync from a PC or vice versa from the unit to PC

PT41-M unit can be programmed via PC (via software PT41) or central unit PT41-CJ (on request). After connecting units PT41-M to PC then saves the data into memory E-EPROM and PC can be disconnected.

When switching from one heating circuit (R1-R6) occurs within 1 min. to switch an output R7, which may be connected e.g. pump. Within 5 seconds from power R7 is also activates the output R8, which is designed for switching the boiler. The shutdown occurs conversely, first turn off the boiler (R8) and 5s pump (R7).

When permanently connection to PC, it is possible to obtain current data from all zones and create statistics for each zone for a certain period.


Function PT41-M:

  • controls up to 6 zones according to the program of PT41-CJ (or PC)
  • two outputs (R7 and R8) used for switching the pump and boiler
  • every change of status is indicated by LED on the front panel
  • after recording constants and programs PT41-CJ / PC operates autonomously
    (central unit / PC may not be connected permanently)
  • is expandable with additional units (PT41-S for more zones)


  • CONVERTER PRE-RS232/USB (including software FOR PC- FREE)
  • CONVERTER PRE-10 (OR PRE-20, PRE-30) for the remote control




Technical specification

Power supply 5 V / 2.5 A, DC (AD05-DIN not icluded)
Communication type through RS232 / Remote via the Internet
Switching element relay
Max. the number of temp. sensors 6 (pro teplotní čidla (max.délka 50m)/ termostaty)
Number of outputs 8 (Imax=6A)
Protection IP20
Working temperature 0 °C to 40 °C

Downloads files

File name Size
pt41-m_opr2023_cz_web.pdf 4.47 MB Download
eob-pt41_app_tiska4.pdf 5.41 MB Download
pt41m_2019_cz.indd.pdf 831.19 kB Download
pt41_priklady_zapojeni.indd.pdf 5.25 MB Download
DIN_6M_size.jpg 273.72 kB Download
epos_pt41_2016.pdf 29.78 kB Download 2.06 MB Download

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