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Wireless thermostat with OpenTherm

BT57 Order number: 654

BT57's new wireless smart thermostat with OpenTherm communications and LED indication on receiver!

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Description of product

Properties BT57:

New wireless thermostat, by which you can use all the advantages of heating systems with communication protocol OpenTherm, and thereby achieve greater energy savings for heating! Setting and selection function on the transmitter, the receiver indicates all states with colored LEDs.

Advantage BT57:

  • Equithermal control
  • Equithermal control with manual correction of the curve
  • Equithermal control with correction according to the internal temperature
  • Constant of the building influence (for quithermal control)
  • PI control (regardless of outdoor temperature)
  • Premature activation of the heating
  • Setting nimimum and maximum water temperature in the heating system
  • 9 weekly programs for central heating (with six temp. changes per day)
  • 1 weekly program for DHW (with three time periods per day)
  • Holiday mode (constant temperature throughout the holiday)
  • Summer mode
  • Possibility of placing the thermostat as needed
  • Clear big display
  • Info about operating hours for central heating/DHW
  • Info about outside temperature
  • Info about heating water temperature and modulation power
  • Info about flow in liters and on the return pipe temperature...
  • E-EPROM memory which retains all data even when power is lost on receiver
  • possibility of control over the mobile phone using GSM modules (you can buy on our web-site)

 

OpenTherm protocol in BT57:

On the basis of this protocol is two-way communication between the thermostat and boiler. BT57 thermostat receiver receives the necessary information (eg outside temperature), which then processes and transmits to the transmitter. The collected information, the thermostat setpoint again converted water heating system, and passed back to the boiler. BT57 can be used for boilers with communicating according to the protocol OpenTherm and meeting the technical specifications.

 

 

 

Technical specification

Power supply battery (2x1,5V R6/AA)
Thermostat type wireless with OT communication
Type of control OTC/PI control
Accuracy +/- 0,5 °C
Dimensions (LxWxD) 66x155x27 mm
Protection IP20
Working temperature 0 °C to 40 °C
Temperature changes per day 6
Range of adjustable temperature 5 °C to 85 °C
Temperature setting by 0, 5 °C
Min. programming time 10 min
Min. indication step 0, 1 °C
Communication type two-way OpenTherm
Min. Programming time for DHW 60 min
Temp. setting range of DHW 10 °C to 65 °C
DHW hysteresis 5, 0 °C
Frequency 433, 92 MHz
Vf power 10 mW
Battery life 1-3 years
Reciever
Power supply directly through a communication line OT + (or AD05-Jack)
Communication type two-way OpenTherm
Range in built-up area 35 m
Consumption 0, 2 VA
Sensitivity -102 dBm
Switching element -
Output OpenTherm
Protection IP20
Working temperature 0 °C to 40 °C

Downloads files

File name Size
bt57_cz_tiska4.pdf 2.99 MB Download

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