Product details
Manufacturer: Remeha B.V.
Brand: Remeha B.V.
Product identification: GTW16
Product description:

Protocol converter between OpenTherm and proprietary BDRTheremea R-bus.

Gateway is special design to connect E-twist thermostat to Opentherm compliant boilers and On/Off controlled boilers.

It includes boiler control that is adopted from the I-sense thermostat.


Company name: Remeha B.V.*
Interface 1 (Master)
Functions and Features
ch: info
ch: max setpoint adjustment
ch: otc control
ch: roomtemp control
dhw: eco/comfort
dhw: info
dhw: setpoint adjustment
general: info
general: service/diagnostics
general: standard
ID0:HB0: Master status: CH enable
ID0:HB1: Master status: DHW enable
ID0:HB2: Master status: Cooling enable
ID0:HB3: Master status: OTC active
ID0:HB4: Master status: CH2 enable
ID0:HB5: Master status: Summer/winter mode
ID0:HB6: Master status: DHW blocking
ID1: Control Setpoint i.e. CH water temperature Setpoint (°C)
ID109: Electricity producer starts
ID110: Electricity producer hours
ID111: Electricity production
ID112: Cumulativ Electricity production
ID115: OEM-specific diagnostic/service code
ID116: Number of succesful starts burner
ID119: Number of starts burner during DHW mode
ID120: Number of hours that burner is in operation (i.e. flame on)
ID123: Number of hours that burner is in operation during DHW mode
ID127: Slave product version number and type
ID14: Maximum relative modulation level setting (%)
ID15: Maximum boiler capacity (kW) / Minimum boiler modulation level(%)
ID16: Room Setpoint (°C)
ID17: Relative Modulation Level (%)
ID18: Water pressure in CH circuit (bar)
ID2:HB0: Master configuration: Smart power
ID2:LB: Master MemberID Code
ID20: Day of Week and Time of Day
ID21: Calendar date
ID22: Calendar year
ID24: Room temperature (°C)
ID25: Boiler flow water temperature (°C)
ID26: DHW temperature (°C)
ID27: Outside temperature (°C)
ID29: Solar storage temperature (°C)
ID5:LB: OEM fault code
ID56: DHW Setpoint (°C) (Remote parameter 1)
ID57: Max CH water Setpoint (°C) (Remote parameters 2)