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EU-Conformity
By affixing the CE mark to the unit the manufacturer declares that the LFWC conforms to the following relevant safety
regulations:
- EU low voltage directive 2014/35/EU
- EU electromagnetic compatibility directive 2014/30/EU conforms.
Conformity has been verified and the corresponding documentation and the EU declaration of conformity are kept on file
by the manufacturer.
General instructions. Please read carefully!
These installation and operating instructions contain basic instructions and important information regarding safety, in-
stallation, commissioning, maintenance and the optimal use of the unit. Therefore these instructions must be read and
understood completely by the installation technician/specialist and by the system user before installation, commissioning
and operation of the unit.
This unit is an automatic, electrical Fresh Water Controller. Install the unit only in dry areas and under the ambient con-
ditions described in "Specifications".
The valid accident prevention regulations, VDE regulations, the regulations of the local power utility, the applicable DIN-
EN standards and the installation and operating instruction of the additional system components must also be observed.
Changes to the Unit
- Changes, additions to or conversion of the unit are not permitted without written permission from the manufacturer.
- It is likewise forbidden to install additional components that have not been tested together with the unit.
- If it becomes clear that safe operation of the unit is no longer possible, for example because of damage to the housing,
turn the Unit off immediately.
- Any parts of the unit or accessories that are not in perfect condition must be exchanged immediately.
- Use only original spare parts and accessories from the manufacturer.
- Markings made on the unit at the factory must not be altered, removed or made illegible.
- Only the settings described in these instructions may be set using the Unit.
b
Changes to the unit can compromise the safety and function of the unit or the entire system.
ABOUT THE CONTROLLER
The Fresh Water Controller LFWC facilitates efficient use and function control of your Fresh water system possible while its
handling is intuitive. After every input step the suitable functions are matched to the keys and explained in a text above. In
the menu 'measurement values and settings' are help text and graphics in addition to key words.
The LFWC can be used for the various system variants.
Important characteristics of the LFWC are:
- Depiction of graphics and texts using a lit display.
- Simple viewing of the current measurement values.
- Statistics and system monitoring by means of statistical graphics
- Extensive setting menus with explanations.
- Menu block can be activated to prevent unintentional setting changes.
- Resetting to previously selected values or factory settings.
MAIN CHARACTERISTICS:
- PWM output for pump speed control
- Backlit display showing text and graphic content
- Simple viewing of current measurement values
- Analysis and monitoring of the system by means of statistical graphs, etc.
- Extensive setting menus with explanations
- Menu lock: activated to prevent unintentional alteration of settings
CONTROLLER TECHNICAL SPECIFICATIONS
Electrical specifications:
Power supply
Power consumption / standby
Internal fuse
Protection Class
Sensor inputs
Sensor inputs flow
USE AND FUNCTIONS OF THE CONTROLLER
100 ... 240VAC, 50 ... 60 Hz
0,5 W - 2,5 W/ 0,5 W
2A slow blow 250V
IP40 / II
5 + 3 nel box
1
Pt1000 temperature sensor
Grundfos Direct Sensor
18
-40 °C ... 300 °C
0 °C-100 °C (-25 °C /120 °C short
term) VFS type; in l/min 1 - 12, 2 - 40,
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