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Products > Fresh Water


FWC Fresh Water Controllers

From small to complex: The FWC controllers allow for quick and precise regulation of the tapping temperature.

Clearly written illuminated full text display.
Convenient menu with text and graphic mode without confusing abbreviations.
Internationally understandable with up to 6 languages included.
Self-explanatory operation: The assigned functions are shown in the display right above the respective input key.
Easy and quick installation with the integrated setup wizard.
Flexible adaptation to various system configurations possible.
Designed for easy integration into pump groups.

Depending on the type of device, different options for enhancement are provided:

  • 0...10V output for speed-control of high-efficiency pumps
  • PWM-output for speed-control of high-efficiency pumps
  • Pre-wired version available

Manuals, labels, software and hardware will be adjusted for OEM customers.

FWC FWC3 FWC4 FWC5
FWC 3 FWC 4 FWC 5
Temperature sensor inputs Pt1000 4 4 4
Sensor inputs for Grundfos VFS sensor 1 1 1
Relay outputs 230V 2 3 5
    of which for speed control of standard pumps 1 1 0
Outputs 0..10V or PWM signal 0 1 1
Number of applications 2 4 2
LEDs red/green for display of operating status 1 1 1
Heat metering Yes Yes Yes
Time and temperature-controlled thermostat function No No Yes
Time and temperature-controlled circulation pump switch Yes Yes Yes
Switch for zone valve for optimized storage layering No Yes Yes
Pre-regulation of the primary circuit temperature by three-way mixer No No Yes
Battery-backed Real Time Clock Yes Yes Yes
Anti-legionella function Yes Yes Yes
Setup wizard Yes Yes Yes
Data storage with statistics and graphic analysis Yes Yes Yes
Error memory and analysis with date and time Yes Yes Yes
Menu blocker Yes Yes Yes
Hydraulic Variants FWC 3 FWC 4 FWC 5