Safety instructions A.1. - EC declaration of conformity By affi xing the CE mark to the unit the manufacturer declares that the FWC3 conforms to the following relevant safety regulations: EC low voltage directive 73/23/EEC, as amended by 93/68/EEC EC electromagnetic compatibility directive 89/336/EEC version 92/31/EEC version 93/68/EEC Conformity has been verifi...
Safety instructions A.4. - Changes to the unit Changes to the unit can compromise the safety and function of the unit or the entire system. Danger - Changes, additions to or conversion of the unit are not permitted without the written permis- sion from the manufacturer - It is likewise forbidden to install additional components that have not been tested together with the unit...
Description of controller B.3. - About the controller The Fresh water controller FWC3 facilitates effi cient use and function control of your fresh water system. The device is impressive most of all for its functionality and simple, almost self-explanatory operation. For each step in the input process the individual entry keys are assigned to appropriate functions and explained.
Description of controller B.6. - Hydraulic variants The following illustrations should be viewed only as schematic diagrams showing the respective hydraulic systems, and do not claim to be complete. The controller Caution does not replace safety devices under any circumstances. Depending on the spe- cifi...
Installation C.1. - Wall installation Install the controller only in dry areas and under the ambient conditions descri- bed under 2.1 “Specifi cations”. Carry out the following steps 1-8. Caution 1.Unscrew cover screw completely Fig.C.1.1 2.Carefully pull upper part of housing from lower part.
Installation C.2. - Electrical connection Before working on the unit, switch off the power supply and secure it against being switched on again! Check for the absence of power! Electrical connections may Danger only be made by a specialist and in compliance with the applicable regulations. Do not use the controller if the housing shows visible damage.
E. - Operation E.1. - Display and input The display (1), with its extensive text and graphics mode, is almost selfexplanatory, allowing easy opera- tion of the controller. The LED (2) lights up green when a relay is switched The LED (2) lights up red when operating mode “Off”...
Parametrisation E.2. - Commissioning help The fi rst time the controller is turned on and after the language and time are set, a query appears as to whether you want to parame- trise the controller using the commissioning help or not. The commissioning help can also be terminated or called up again at any time in the special functions menu.
Operation E.4. - Menu sequence and menu structure The graphics or overview mode appears when no key has been press for 2 minutes, or when the main menu is exited by pressing “esc“. Pressing a key in graphics or overview mode takes you directly to the main menu.
Measurement values 1. - Measurement values The menu “1. Measurement values” serves to dis- play the currently measured temperatures. The menu is closed by pressing “esc” or selecting “Exit measurement values”. Selecting “Info” leads to a brief help text explaining the measurement values.
Statistics 2. - Statistics The menu “2. Statistics” is used for function control and long-term monitoring of the system. The submenus described under 7.1-7.6 are available. The menu is closed by pressing “esc” or selecting “Exit statistics”. For system data statistics it is essential for the time to be set accurately on the control- ler.
Display Mode 3. - Display mode Menu “3. Display mode” is used to defi ne the control- ler’s display for normal operation. This display appears whenever two minutes go by without any key being pressed. The main menu appears again when a key is pressed.
Operating modes 4. - Operating mode In menu “4. Operating modes” the controller can either be placed in automatic mode, switched off, or placed in a manual operating mode. The menu is closed by pressing “esc” or selecting “Exit operating modes”. 4.1.
5.1. - Tset Setpoint at sensor 5 The controller FWC3 attempts to maintain a constant temperature at sensor 5 by controlling the speed of the hot water pump. Settings range: 30 ° C to 90 ° C / Default: 45 ° C 5.2.
Settings 5.4. - Circulation Mode of circulation Set the mode of circulation in this menu. In mode “Off” a circulation pump is not part of the design (see 2.5 Fig.1). When the mode “Request” is active, the circulation pump is switched on after a correspond- ing withdrawal of water has occured (see 5.5 to 5.8 for instructions to the necessary settings).
Settings 5.7. - Circ. Tmin. Minimum temperature at sensor S2 If the temperature drops below Circ.Tmin at sensor 2 and the circulation is enabled (see „5.10. - Circulation period“), the circulation pump is started. Settings range: 10 ° C to 85 ° C / Default : 30 ° C 5.8.
Special functions 6. - Special functions Menu “6. Special functions” is used to set basic items and expanded functions. Other than the time all settings may only be made by a specialist. Caution The menu is closed by pressing “esc” or selecting “Exit special functions”.
Special functions 6.5. - Antilegionella With the AL-function activated, the FWC3 3 makes it possible to heat the storage in selectable intervals, (AL interval) for the set residence time (AL resid. time), starting at the set time (AL start time) until the temperature AL Tset is reached. The temperature measured at S5 has a reference of AL Tset +5°.
Special functions 6.6. - Speed control If the speed control is activated, the FWC3 makes it possible to vary the speed of standard pumps at relay R1 by means of special internal electronics. This should only be activated and set up by a specialist! Wrong settings can damage the system! Refer to the pump and system manufacturer’s manuals.
Menu lock 7. - Menu lock Menu “7. Menu lock” can be used to secure the control- ler against unintentional changing of the set values. The menu is closed by pressing “esc” or selecting “Exit menu lock”. The menus listed below remain completely accessible despite the menu lock being activated, and can be used to make adjustments if necessary: 1.
Service values 8. - Service values The menu “8. Service values” can be used for remote diagnosis by a specialist or the manufacturer in the event of an error, etc. Enter the values at the time when the error occurs e.g. in the table. Caution The menu can be closed at any time by pressing “esc”.
Language 9. - Language Menu “9. Language” can be used to select the language for the menu guidance. This is queried automatically during initial commissioning. The choice of languages may differ, however, depend- ing on the device design. Language selection is not available in every device design!
Malfunctions Z.1 Malfunctions with error messages If the controller detects a malfunction, the red light fl ashes and the warning symbol also appears in the display. If the error is no longer present, the warning symbol changes to an info symbol and the red light no longer fl...
Malfunctions Z.2 Replacing the fuse Repairs and maintenance may only be performed by a specialist. Before working on the unit, switch off the power supply and secure it against being switched on again! Check for the absence of power! Danger Only use the supplied spare fuse or a fuse of the same design with the following specifi...
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Maintenance Z.3. Maintenance In the course of the general annual maintenance of your heating system you should also have the functions of the controller checked by a specialist and have the settings optimised if necessary. Caution Performing maintenance: - Check the date and time (see 11.1) - Assess/check plausibility of analyses (see 7.) - Check the error memory (see 7.5) - Verify/check plausibility of the current measurement values (see 6.)
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Although these instructions have been created with the greatest possible care, the possibility of incorrect or incomplete information cannot be excluded. Subject as a basic principle to errors and technical changes. Manufacturer: SOREL GmbH Mikroelektronik Jahnstr. 36 D - 45549 Sprockhövel Tel.
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