TacoTherm Fresh Mega Connect X

Fresh hot water station for hygienically heating drinking water in accordance with the continuous flow principle with innovative pump and regulation technology


The TacoTherm Fresh Mega Connect X (C) fresh hot water station is used for heating drinking water on demand in accordance with the cyclical principle in conjunction with a storage tank for existing and new heating systems, wood-burning boilers, heat pumps and solar systems. The station replaces the storage of hot drinking water in an additional storage unit and thus provides a high degree of protection against Legionella by avoiding water stagnation.



  • Simple and fast commissioning thanks to innovative pump and regulation technology
  • Valves and components are fully preassembled and wired ready for connection


  • Integrated safety subassembly, soft-close valves, components and materials suitable for use with drinking water


  • Choice of models with and without circulating pump


  • Use of cutting-edge pump technology as well as high transmission performance and low pressure loss thanks to optimized piping


  • Drinking water is heated to the defined dispensing temperature in the TacoTherm Fresh Mega Connect X (C) in accordance with the continuous flow principle. The integrated heat exchanger is supplied with as little hot water from the storage tank as is required to maintain a constant dispensing temperature.
  • Cutting-edge pump technology is used with wireless connection to the regulating components.
  • Setpoints can be adjusted for domestic hot water and circulation directly at the pumps using simple menu guidance. The station comes in a choice of models with and without circulating pump.

Technical Data


  • TacoTherm Fresh Mega Connect X controller with Wireless Connect
  • Weight (empty): 18.1 – 20.6 kg
  • Overall dimensions (incl. hood): W 470 mm × H 685 mm × D 191 mm

Primary side

  • Operating temperature TO max: 95 °C
  • Operating pressure PO max: 10 bar
  • Primary pump: Grundfos ALPHA2 FWM

Secondary side
Modules on secondary side with drinking water certifications

  • Operating temperature TO max: 85 °C
  • Operating pressure PO max: 10 bar
  • Safety valve (intrinsic safety): 10 bar discharge pressure and 9 bar closing pressure
  • Circulation pump: Grundfos ALPHA2 DHW

Electrical connection data

  • Mains voltage: 230 VAC ± 10 %
  • Mains frequency: 50...60 Hz
  • Power consumption: max. 80 W
  • Protection type: IP 40


  • Base plate: Galvanized sheet steel
  • Rear panel and hood: EPP design insulation
  • Pumps:
    • Primary: PPS
    • Secondary: PPS (plastic, approved for drinking water)
  • Valve housing: Brass
  • Pipes: DN 20 stainless steel 1.4404
  • Plate heat exchanger:
    • Plates and connector pieces:Stainless steel 1.4401
    • Heat exchanger solder: 99.99 % copper (stainless steel solder model available on request)
  • Seals: AFM flush seal

Flow Media

  • Heating water (VDI 2035; SWKI BT 102-01; ÖNORM H 5195–1)
  • Cooling water (DIN 1988-7)

Building categories

  • Apartment blocks
  • Housing estates
  • Multiple dwelling units
  • Smaller public buildings
  • Facilities with partial use – for example barracks, camping sites, etc.

Type Overview

TacoTherm Fresh Mega Connect X and Mega Connect X C

Fresh hot water station
Order no. Rp " Version Equipment
272.6026.000 1" IG X Without circulating pump
273.6626.000 1" IG X C With circulating pump