FSM-HT with circulation
    FSM-HT with circulation
FSU without circulation
    FSU without circulation
tubra®-FSU / FSM

Flat stations

The thermally controlled tubra®-FSU / FSM flat stations for comfortable, decentralized and hygienic potable hot water heating and efficient heating distribution.

For new construction and renovation with extensive standard equipment. Versions
for radiator systems, underfloor heating and combinations.

All versions with copper or stainless steel brazed plate heat exchanger.

  • power classes from 35 kW – 50 kW
  • Thermal hot water control
    through 3-way priority control valve
  • standby temperature 50 °C according to VDI 2072
  • hot water comfort levels
  • and much more
tubra® variants FSU and FSM

The flat stations are available as unmixed and mixed heating circuits with or without HT connection in various designs.

Unmixed heating circuit:

  • tubra®-FSU-S (14 l/min) copper heat exchanger
  • tubra®-FSU-S (14 l/min) stainless steel heat exchanger
  • tubra®-FSU-M (20 l/min) copper heat exchanger
  • tubra®-FSU-M (20 l/min) stainless steel heat exchanger

Mixed heating circuit

  • tubra®-FSM-S (14 l/min) copper heat exchanger
  • tubra®-FSM-S (14 l/min) stainless steel heat exchanger
  • tubra®-FSM-M (20 l/min) copper heat exchanger
  • tubra®-FSM-M (20 l/min) stainless steel heat exchanger

Mixed heating circuit with HT connection

  • tubra®-FSM HT-S (14 l/min) copper heat exchanger
  • tubra®-FSM HT-S (14 l/min) stainless steel heat exchanger
  • tubra®-FSM HT-M (20 l/min) copper heat exchanger
  • tubra®-FSM HT-M (20 l/min) stainless steel heat exchanger
Scheme of FSM-HT flat station with circu
Scheme of FSU flat station with circu
Performance data of the stations tubra®-FSU, tubra®-FSM and tubra®-FSM HT

Performance classes
Mains temperature 60 °C, hot water temperature 45 °C

  • FSU/M-S:     14 l/min (35 kW)
  • FSU/M-M:     20 l/min (50 kW)

Dimensions

  • construction depth 110 mm suitable for drywall
  • SM housing narrow:     570 x 700 x 150 mm
  • FM housing narrow:     570 x 700 – 900 x 110 – 160 mm
  • SM housing wide:         700 x 1160 x 150 mm
  • FM housing wide:           700 x 1160 – 1350 x 110 – 160 mm

Thermo Comfort System

  • thermal hot water control by 3-way priority control valve
  • standby temperature 50 °C according to VDI 2072
  • hot water comfort level III according to VDI 6003

Delta Control System

  • integrated differential pressure regulator 30 kPa
  • presettable zone valve in the heating outlet

Safety Set

  • strainer in the station entrance
  • water hammer damper
  • manual air vent in the flow

Measurement Ready

  • fitting for heat meter 110 mm / 3⁄4″
  • fitting for cold water meter 110 mm / 3⁄4″

Circulation Set

  • connection for hot water circulation pump
  • e.g. Lowara Ecocirc 15/1 with intgr. thermostat
  • controllable via timer

Mixed Heating System – 10 kW

  • connection of mixed heating circuit for floor heating with thermal fixed value control section
  • maximum power floor circuit: Q=10 kW, dT=5 K, 1.7 m³/h
  • A thermostatic head with remote sensor regulates the volume flow from the mains and
    keeps the VL temperature constant at 20 – 50 °C
  • temperature switch in floor circuit flow max. 55 °C

High Temperature Radiator Option

  • additional high-temperature outlet for bathroom radiators with return temperature limitation
System FS-S flat station 12 L/min, water temperature 45 °C                            
System FS-M flat station 12 L/min, water temperature 45 °C                           
Typtubra®-FSU-Stubra®-FSU-Mtubra®-FSM-Stubra®-FSM-M
Material PWTCu / VECu / VECu / VECu / VE
WW-Volumenstrom 60/10-45 °Cl/min14201420
WW-LeistungkW35503550
Hz-Leistung max. (360 l/h / dT=25 K)kW10101010
Primärvolumenstrom (WW-max.)l/h72011807201180
kvs-Wert Warmwasserm³/h1,21,71,21,7
dp-max Warmwasser VolllastkPa37443744
kvs-Wert Heizungm³/h0,70,70,70,7
Ausstattungsvarianten
Differenzdruckregler 30 kPaJaJaJaJa
therm. WarmwassertemperaturregelungJaJaJaJa
Warmwasser VorrangregelungJaJaJaJa
Heizungs-Zonenventil M30*1,5JaJaJaJa
EPP Dämmung WärmetauscherJaJaJaJa
PWT Temperatur VorhaltungJaJaJaJa
Schmutzfänger, Position WMZ-VL-SensorJaJaJaJa
Hand-Entlüfter PrimärseiteJaJaJaJa
WasserschlagdämpferJaJaJaJa
Passstück für Wärmemengenzähler NetzJaJaJaJa
Passstück für KaltwasserzählerJaJaJaJa
Anschlussmöglichkeit für WW-ZirkulationJaJaJaJa
gemischerter Heizkreis 20 - 50 °C--JaJa
Temperaturschalter 55 °C--JaJa
Optionen
Flies-Dämmungoptionaloptionaloptionaloptional
Montageanschlussplatte 7-fachoptionaloptionaloptionaloptional
Montageanschlussplatte 9-fach (inkl. HT-Abgang)--optionaloptional
Hochtemperatur Abgang für Badheizkörper--optionaloptional
Rohrset für Fußbodenverteiler--optionaloptional
Set - temperaturgesteuerte Zirkulationspumpeoptionaloptionaloptionaloptional
Gehäuse
AP-Gehäuse schmal: 570 x 700 x 150 mmoptionaloptional--
UP-Gehäuse schmal: 570 x 700 - 900 x 110 - 160 mmoptionaloptional--
AP-Gehäuse breit: 700 x 1160 x 150 mm--optionaloptional
UP-Gehäuse breit: 700 x 1160 - 1350 x 110 - 160 mm--optionaloptional

tubra®-Selection of accessories

Product portfolio Flat stations

The thermally controlled tubra®-FSU / FSM home stations for
convenient, decentralized and hygienic DHW heating and
efficient heating distribution.

Flat station with circulation

tubra®-FSU / FSM
DHW flow rate 60/10 – 45 °C with 14 to 20 l/min

see product

Flat station without circulation

tubra®-FSU / FSM
DHW flow rate 60/10 – 45 °C with 14 to 20 l/min

see product

Labeling 1213
FSM-HT with circulation
Product image FSU 648
FSU without circulation
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