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Summary of Contents for Sorel MFWC
- Page 1 Fresh Water Controller MFWC Installation and operating instructions Read carefully before installation, commissioning and operation...
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Page 2: Table Of Contents
Explanation of Symbols teresis) Changes to the Unit Minimum storage temperature Warranty and Liability Storage target temperature Disposal and Pollutants Storage stratification Description MFWC ΔT return storage Always on About the Controller Follow-up time Specifications Parallel operation V1/V2 Scope of Supply... -
Page 3: Safety Instructions
Safety Instructions EU-Conformity By affixing the CE mark to the unit the manufacturer declares that theMFWC 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. -
Page 4: Warranty And Liability
About the Controller The Fresh water controller MFWC 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. -
Page 5: Specifications
Scope of Supply Fresh water controller MFWC 3 screws 3,5 x 35 mm and 3 plugs 6 mm for wall installation. MFWC Installation and operating instructions Optionally contained depending on design/order: Pt1000 temperature sensors, immersion sleeves, overvoltage protection External relay with potential free contact - article number 77502... -
Page 6: Hydraulic Variants
Hydraulic Variants The following illustrations should be regarded only as schematic representations of the respective hydraulic systems and do not claim to be complete. Under no cir- cumstances should the controller replace any safety devices. Depending on the specific application, additional system and safety components such as check valves, non-return valves, safety temperature limiters, scalding protectors, etc., may be required. -
Page 7: Installation
Installation Electrical Terminals Low voltages Mains voltages max. 12 VAC / DC 230 VAC 50 - 60 Hz The sensor ground (S1-S6) is connected to the terminal block Sensor -. Terminal: Connection for: Terminal: Connection for: Circulation (opt.) Network outer conductor L Cold water (optionally, see below) Network neutral conductor N Primary flow (opt.) -
Page 8: Wall Installation
8. Align the housing and tighten the three screws. If problems occur with the operation of the terminals, our video on our YouTube page can help you: http://www.sorel.de/youtube Electrical Connection Before working on the unit, switch off the power supply and secure it against being switched on again! Check that there is no power flowing! Electrical connections may only be made by a specialist and in compliance with the applicable regulations. -
Page 9: Installing The Temperature Sensors
The cables being connected to the unit must not be stripped by more than 55 mm, and the cable jacket must reach into the housing just to the other side of the strain relief. Installing the Temperature Sensors The controller operates with Pt1000 temperature sensors which are accurate to 1 °C, ensuring optimal control of system functions. If desired, the sensor cables can be extended to a maximum of 30 m using a cable with a cross-section of at least 0.75 mm². -
Page 10: Operation
Operation Display and Input The display‘s (1), extensive text and graphical mode, enables simple, almost self-explanatory, operation of the controller. The LED (2) lights up green when the primary pump is switched on (automatic mode). The LED (2) lights up red when operating mode ‚Off‘... -
Page 11: Commissioning Help
Commissioning help 1. Set language and time 2. Commissioning help / setup wizard a) select or b) skip. The setup wizard guides through the necessary basic settings in the correct order. Every parameter is explained on the display of the controller. Pressing the „esc“... -
Page 12: Measurement Values
1. Measurement values Serve to display the current measured temperatures. If ‚error‘ appears on the display instead of the measurement value, there may be a defective or incorrect temperature sensor. If the cables are too long or the sensors are not well-placed, small deviations in the measurement values may occur. -
Page 13: Operating Mode
Tset Setpoint temperature at the flow sensor. The MFWC controller operates on the condition that the hot water temperature/tap temperature measured at the flow sensor is adjus- ted as quickly as possible and kept constant. Temperature values which are set too high can lead to scalding or damage to the system. Scalding protection must be... -
Page 14: Circulation
provided by the customer! Circulation If the circulation has been selected and activated in the menu Special functions/Signal V2, the following settings can be made: See " Cir- culation " on page 16 Flow sensor Selection of the flow sensor. Storage Heating Storage heating See "... -
Page 15: Limescale Protection
Limescale Protection To prevent the accumulation of limescale, the circulation pump can continue to rinse the heat exchanger after a tapping for max. 30 seconds or till the hot water sensor drops below Tset. Discharge protection This protection function is for the case that the necessary primary temperature cannot be guaranteed at all times. When no storage sensor is connected: If the setpoint temperature is not reached after 60 seconds, the currently measured temperature -3°C is used as new setpoint tem- perature. -
Page 16: Show Signal
Speed control If the speed control is activated, it MFWC offers the possibility through a special internal electronic system to change the speed of pumps depending on the process. The relay R1, R2 and the Pwm and 0-10V outputs can work with the speed controlled. -
Page 17: Hysteresis
Hysteresis If the value T-target on S4 is exceeded by the hysteresis set here, the circulation will shut down. Circulation sensor If the circulation Tmin value is exceeded by the value set here, the circulation pump will be shut down. Times Here the desired periods are set in which the circulation is approved. -
Page 18: Delay
Delay The assigned relay switches on the delay set here later than V1/V2. Signal V2 With this function, the PMW / 0-10 V output 2 can also be used to control an additional high-efficiency pump. If a pump function is activ- ated (e. -
Page 19: Eco Display Mode
You can find the address of the connector or respectively the data logger on the address sticker on the outside of the casing. Pointers and help on how to establish a connection you can find in the enclosed SOREL Connect instructions or the instructions of the data log- ger. -
Page 20: Menu Lock
7. Menu Lock Secure the controller against unintentional changing and compromise of basic func- tions. Menu lock active = "On" Menu lock off = "Off" In addition, the "Simple" menu view can be used to hide menu items that are not necessary for the daily use of the controller after commissioning. -
Page 21: Malfunctions/Maintenance
Malfunctions/Maintenance 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 that there is no power flowing! Only use the included safeguard or a similar safeguard with the following specifications: T2A / 250 V. -
Page 22: Additional Information
Additional Information DF Station+ Here the upper flow limit is set in % of the DF sensor. If this limit is exceeded, an additional station from the cascade is requested. If the currently running station does not reach the set tapping temperature despite 100% speed of the primary pump, a fur- ther station is automatically requested! DF Station- Here the bottom flow limit is set in % of the flow sensor. -
Page 23: Special Features
Special features 1. The circulation pump is not controlled by the cascade. If there is a circulation pump connected, all the necessary settings must be made using the controller the pump is connected to. If more stations with circulation pumps are present, the same settings must be made for all circulation pumps in the cascade network. -
Page 24: Final Declaration
Date and time of installation: Name of installation company: Space for notes: Your specialist dealer: Manufacturer: SOREL GmbH Mikroelektronik Reme-Str. 12 D - 58300 Wetter (Ruhr) +49 (0)2335 682 77 0 +49 (0)2335 682 77 10 info@sorel.de www.sorel.de...
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