REMKO EFS Series Operating And Installation Instructions
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REMKO EFS Series Operating And Installation Instructions

Fresh water station controller instructions for users and specialists
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Operating and
installation instructions
REMKO EFS series
Fresh water station controller
Instructions for users and specialists
FC 3.10
0282-2021-03 Edition 1, en_GB
Read the instructions prior to performing any task!

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Summary of Contents for REMKO EFS Series

  • Page 1 Operating and installation instructions REMKO EFS series Fresh water station controller Instructions for users and specialists FC 3.10 0282-2021-03 Edition 1, en_GB Read the instructions prior to performing any task!
  • Page 2 Read these operating instructions carefully before commis- sioning / using this device! These instructions are an integral part of the system and must always be kept near or on the device. Subject to modifications; No liability accepted for errors or mis- prints! Translation of the original...

  • Page 3: Table Of Contents

    Table of contents Safety and usage instructions......................5 1.1 General safety notes........................5 1.2 Identification of notes........................5 1.3 Personnel qualifications........................5 1.4 Dangers of failure to observe the safety notes................5 1.5 Safety-conscious working....................... 5 1.6 Safety instructions for the operator....................6 1.7 Safety notes for installation and inspection tasks................
  • Page 4 REMKO EFS series 7.10 Reheating *)..........................43 Cascade controller installation......................44 8.1 General............................44 8.2 Installation............................. 44 8.3 Initial commissioning of the cascade controller................48 8.4 Expansion of an individual controller to the cascade network............49 8.5 Cascade menu settings......................... 50 8.6 Cascade on client submenu......................

  • Page 5: Safety And Usage Instructions

    Safety and usage instructions CAUTION! This combination of symbol and signal word 1.1 General safety notes warns of a potentially hazardous situation, which if not avoided may cause injury or mate- Carefully read the operating manual before com- rial and environmental damage. missioning the units for the first time.

  • Page 6: Safety Instructions For The Operator

    REMKO EFS series 1.6 Safety instructions for the oper- 1.7 Safety notes for installation and ator inspection tasks The operational safety of the units and compo- The operator must ensure that all inspection nents is only assured providing they are used as and installation work is carried out by author- intended and in a fully assembled state.

  • Page 7: Intended Use

    "certificate of warranty" to ance with local regulations and in an environmen- REMKO GmbH & Co. KG at the time when the tally safe manner, e.g. using authorised disposal units are purchased and commissioned.

  • Page 8: Technical Data

    REMKO EFS series Technical data 2.1 Unit data Series FC 3.10 General Rated voltage (system voltage) V / Hz 115... 230V~ / 50/60 Hz Energy consumption < 2.5 Private consumption stand-by < 1 Max. current consumption including out- < 4.2...

  • Page 9: Cable Specification

    Unit data (continued) Series FC 3.10 Signal outputs Number Frequency 200 Hz Voltage 10 V Current (max.) 10 mA Modbus Number of connections Type Internal bus Number of connections Type RJ12 Operating conditions Enclosure class IP 20, DIN 40050 [without front panel: IP 20] Protection class Ambient temperature 0 ...50 °C for free wall mounting...

  • Page 10: Unit Construction And Operation

    REMKO EFS series Unit construction and Buttons / key combination operation Description 3.1 Housing and buttons Back: jumps back to the next highest level or back to the system overview Up: navigate up in the menu, increase setting value Down: navigate down in the...

  • Page 11: Display

    3.2 Display Symbols Overview Symbol Description 3-way valve with flow direction Checkbox (activated/deactivated) Disinfection active Fault message Manual mode Fig. 2: Display Pump 1: Time with weekday 2: Inlet temperature (T-VL) 3: Medium flow rate (VFS V) Storage tank 4: Remaining disinfection time 5: Primary pump speed (PWM 1) 6: Cold water temperature (T-KW) Thermometer...

  • Page 12: Assembly And Installation

    REMKO EFS series Assembly and installation 4.1 Mounting the controller The following section only describes the installation of the controller. When installing external components (valves etc.), follow the instructions provided by the relevant manufac- turer. Do not bring the controller into operation if there is visible damage...
  • Page 13 Inputs EFS 20.1 Terminal Individual operation / cascade operation S1, ^ Inlet temperature, primary (T-VL) Optional: Storage tank temperature (T-SP), ext. Circulation temperature, ext. Return flow strat- S2, ^ ification temperature (EFS 20.1) Optional: Storage tank temperature (T-SP), ext. Circulation temperature, ext. Return flow strat- S3, ^ ification temperature (EFS 35.1 and EFS 50.1) S4, ^...

  • Page 14: Electrical Wiring

    REMKO EFS series 4.2 Electrical wiring NOTICE! Danger of damage and malfunction! DANGER! – Only connect components that do not over- Danger to life and limb due to electric load the inputs and outputs of the controller; shock! for more information, see the name plate Ensure that the following conditions are met and “Technical data”...

  • Page 15: Commissioning

    Commissioning 5.1 Commissioning Language Setting the desired menu language. DANGER! L A N G U A G E Contact with live parts poses an immediate danger of death due to electric shock. Damage to the insulation or individual components may D e u t s c h ( D E ) pose a danger of death.
  • Page 16 REMKO EFS series Nominal temperature Date Setting the desired target temperature for the hot Setting the current date. First the day, then the water. month and finally the year. N O M I N A L T E M P E R A T U R E S E T D A T E 60 °C...
  • Page 17 End without logging Ends commissioning without saving onto an external USB stick. The settings made during commissioning can be changed again at any time in the corresponding submenus. The controller is ready for use after carrying out commissioning. Parameter Meaning Adjustment range Factory setting Language...

  • Page 18: Menu Settings

    REMKO EFS series 5.2 Menu settings The FC3.10 controller menu opens when pressing the ( ) button. The menu bar includes several sub- menus in which various settings can be edited or viewed. The available menu items of the first three “levels”...
  • Page 19 Menu settings (continued) Registration DHCP IP address Internet module Network mask Gateway address DNS address Information Remove data carrier Load settings Save settings Save alarm process Save parameter process MENU Log interval Type of logging Format data carrier Features Automatic mode Probe simulation Relay 1 Automatic/manual mode...

  • Page 20: Status

    REMKO EFS series 5.3 Status Furthermore, the current operating times, switch cycles, heat content and dispensing volumes are Submenus are assigned the “status” menu item recorded and can be viewed in the respective sub- which makes it possible to check all measure- menu.
  • Page 21 Messages Service This menu item provides information about which The assignment of all inputs and outputs are occurring controller errors have been diagnosed. If shown in this menu item. The overview of active/ inactive functions is also displayed. Furthermore, an error occurs, a ( ) symbol appears on the dis- which functions are active/inactive and which play and an error message appears with informa- tion about the respective error.

  • Page 22: Hot Water

    REMKO EFS series 5.4 Hot water The temperature settings for hot water preparation are carried out in this menu item. D . H . W . S E T T E M P E R A T U R E 60 °C...

  • Page 23: Functions

    5.5 Functions 5.6 Basic settings This menu item includes all selectable functions All basic controller settings as well as updating/ and the associated settings. The “Confirm” key is editing the commissioning settings can be made in pressed in order to activate/deactivate the desired this menu.
  • Page 24 REMKO EFS series Factory set- Parameter Meaning Adjustment range ting German Polish English Language Selection of the menu language Deutsch French Spanish Italian Date Setting the date Time Setting the time Synchronisation of the date/time Synchronise date/time Yes, no (Internet module is required)

  • Page 25: Internet Module

    5.7 Internet module 5.8 USB You have the option to control the operating The controller has a service interface (USB con- parameters of the fresh water station externally via nection) for standard USB sticks. In order to con- a laptop, PC or smartphone using the Internet nect a USB stick, the EEP insulation must first be module.
  • Page 26 REMKO EFS series Log interval In the “Cyclical” setting, the oldest data on the card Setting of the logging interval for data recording. is overwritten as soon as the capacity is reached. This states the intervals at which data should be Format data carrier stored on the external storage medium.

  • Page 27: Automatic/Manual Mode

    5.9 Automatic/manual mode The operating mode of all PWM outputs and relays used in the controller can also be set as a probe simulation in this menu item. For the probe simula- tion, a certain temperature can be set for a probe in order to simulate it.

  • Page 28: Operator Code

    REMKO EFS series 5.10 Operator code The operator code is entered in this menu. Ena- bles varying access to the controller settings area depending on the code entered. Each digit of the four-digit code must be entered and confirmed indi- vidually.

  • Page 29: Controller Parameters

    Controller parameters “StatusMeasurement/result” parameter level MenuStatusMeasurement/result Probes Relays Operating Switch cycles Heat content Dispensing times volume Probe Relay R1/R2/R3 Relay R1/R2/R3 Relay R1/R2/R3 Current/WH Current/L/Min S1/S2/S3/S4 VFS /VL/min PWM 1 Pump 1 Pump 1 Day / WH Day / L VFS T °C PWM 2 Pump 2...
  • Page 30 REMKO EFS series “StatusController” parameter level MenuStatusController Current controller version display “Hot water” parameter level MenuHot water Nominal temperature WW Min 35 °C - Max.75 °C “FunctionsCirculation” parameter level MenuFunctionsCirculation Circulation Temp. control Clock control Demand Circulation probe Pump speed “FunctionsReturn flow stratification”...
  • Page 31 “FunctionsDisinfection” parameter level MenuFunctionsDisinfection Disinfection Manual disinfection (Yes/No) Disinfection temp. (60 - 80 °C) Disinfection duration (10 - 240 Min.) Disinfection day (Mon - Sun) Disinfection time (0 - 23) Disinfection successful after (9 - 59 Min.) End prematurely Disinfection process “FunctionsFault relay”...
  • Page 32 REMKO EFS series “FunctionsLanguage” parameter level MenuFunctionsLanguage German Polski English Francais Espaniol Italiano “FunctionsDate” parameter level MenuFunctionsDate Month Year “FunctionsTime” parameter level MenuFunctionsTime Hours Minutes “FunctionsTime sync” parameter level MenuFunctionsTime sync Active Inactive “Basic settings” parameter level MenuBasic settings Auto summer/winter time...
  • Page 33 “Internet module” parameter level MenuInternet module Internet module Registration DHCP IP address Network mask Gateway address DNS address Information “USB” parameter level MenuUSB Remove data carrier Load settings Save settings Save alarm process Save param. process Log interval Type of logging Format data carrier Features “Automatic/manual mode”...
  • Page 34 REMKO EFS series “Operator code” parameter level MenuExpanded settings Enter operator code (factory code 9856) Maximum speed...

  • Page 35: Function Description

    Function description 7.1 Circulation In cascade mode, the circulation pump is only connected to the FC3.10 controller which should be declared as controller type “Client”. Only the client controller station is switched on during the adjustment process (client cascade valve = ON). The cascade valves of the server are closed.
  • Page 36 REMKO EFS series Time control operating mode Request operating mode There are two options for adjusting the circulation If a water valve is opened for a few seconds (max. pump is the Time control menu item: 5 s) and closed again, the volume flow probe detects this dispensing pulse.
  • Page 37 Factory set- Parameter Meaning Adjustment range ting Circulation is active Activation of the function On, off Temperature control Submenu for temperature control set- On, off tings Switch-on temperature Switch-on temperature 35 ... 75 °C 55 °C ∆T Off ∆T for stipulating the switch-off temper- 2 ...

  • Page 38: Return Flow Stratification (Rf Stratification)

    REMKO EFS series 7.2 Return flow stratification Difference operating mode (RF stratification) The storage tank temperature is required in addi- The function is used to enable temperature stratifi- tion to the temperature at the cold water probe. cation in the storage tank and to prevent mixing.

  • Page 39: Sliding Tww Regulation

    Factory set- Parameter Meaning Adjustment range ting RF stratification Activation of the function On, off Relay selection Selection of the relay Relay 1, relay 2 Relay 2 Thermostat mode Submenu for thermostat mode settings On, off Switch-on temperature Switch-on temperature 20 ...

  • Page 40: Disinfection

    REMKO EFS series Factory set- Parameter Meaning Adjustment range ting Comfort function Activation of the function On, off Pause Pause 1 ... 60 Min 10 Min ∆T Temperature difference 1 ... 15 K Pump speed Primary pump control 0 ... 100 %...

  • Page 41: Fault Relay

    Factory set- Parameter Meaning Adjustment range ting Disinfection Activation of the function On, off Manual disinfection Start disinfection manually On, off Disinfection tempera- Temperature at the hot water outlet to 60 ... 80 °C 60 °C ture which it is regulated Disinfection duration Duration of disinfection 10 ...

  • Page 42: Parallel Relay

    REMKO EFS series 7.7 Parallel relay The “parallel relay” function is used to switch to an additional relay. For which events the parallel relay is switched can be selected. Example: The R2 parallel relay is selected for the primary pump. The R2 relay is always switched when the controller sends a signal to the primary pump.

  • Page 43: Buffer Tank *)

    Probe 2, probe 3 Relay selection Selection of the relay Relay 1, relay 2 External reheating via a REMKO heat pump is not possible. Reheating the storage tank is requested for the heat pumps via the assigned probe, e.g. heat pump probe S08.

  • Page 44: Cascade Controller Installation

    REMKO EFS series Cascade controller installation 8.1 General The other controllers are designated as server 1, server 2 or server 3 accordingly depending on the Fresh water stations (max. 4) connected in parallel number. It must be ensured that the 3-way valve...
  • Page 45 Fig. 4: Dismantling the controller Proceed with installation as follows: Remove the white front panel from the controller. The strain relief must also be removed in the next step. Then the VFS/US probe lines, the PWM signals and the temperature probes must be removed from the conductor board plug connections.
  • Page 46 REMKO EFS series Remove the strain relief at the 230 V level. Now, the cascade valve must be connected to the relay 1 output. If a 3-way valve must also be connected for improved stratification in the storage tank (return flow stratification), use relay 2 output of server 1.
  • Page 47 Pos. 1 Pos. 2 Fig. 6: Connection of the pumps A: Pump (primary) B: Pump (secondary) It is necessary to place the jumpers for the first and last participant of the Modbus communication in pos. 2 (see graphic above). Therefore, insert the jumpers as follows: Number of cascade modules Client Server 1...

  • Page 48: Initial Commissioning Of The Cascade Controller

    REMKO EFS series 8.3 Initial commissioning of the cascade controller Now assign the correct controller type to additional modules. If a controller has been designated as a When the entire cascade is hydraulically filled and server, the menu items of the commissioning are...

  • Page 49: Expansion Of An Individual Controller To The Cascade Network

    Now start automatic synchronisation of all control- If all connected modules have been marked with lers in the cascade. A window appears on the dis- “OK”, a secure connection between all controllers play at the end with the note “Synchronisation has been established.

  • Page 50: Cascade Menu Settings

    REMKO EFS series 8.5 Cascade menu settings The FC3.10 controller menu opens when pressing the ( ) button. The menu bar includes several sub- menus in which you can edit or view various settings. The available menu items of the first three levels are shown in the form of a menu tree based on the client and are described in detail in the following chapter.
  • Page 51 Cascade menu settings (continued) Cascade switchover points Switchover point ON Switchover point OFF Switchover delay Cascade *) Duration of the stand-by module Synchronisation MENU Debug Information Internet module USB **) Automatic/manual mode **) Operator code **) Expanded settings **) *) Settings only visible with installer code (see “Operator code” chapter). **) Some settings are visible on the servers.

  • Page 52: Cascade On Client Submenu

    REMKO EFS series 8.6 Cascade on client submenu Switchover point ON* This allows you to set the threshold value of the The essential settings have already been dispensing medium flow rate that is required to described in the corresponding chapters. The cas-...

  • Page 53: Submenus On The Server

    Information* The OP-time indicates the running time of the pri- mary pump. The S-TIME states information about Provides access to the operating times and the the total time of the modules in which they were current medium flow rate of the respective stations. active as a stand-by module.

  • Page 54: Functions In The Cascade Network

    (three fresh water stations: client (left), server 1 (middle) and server 2 (right)). Fig. 7: Cascade network (example diagram) Buffer tank (on-site design of the volume) Cold water inlet 8 REMKO RES valve (server 1 connection) Hot water outlet Primary pump Regulation 1 (client) Zone valve...
  • Page 55 If an external probe is selected, the probe must be Thermal disinfection connected to the client. Probe 2 and probe 3 can be selected for an EFS 20.1 cascade. For an EFS CAUTION! 35.1 and EFS 50.1 cascade, the external probe must be connected to the probe 3 inlet and acti- Danger of scalding due to hot water! vated in the circulation probe menu item.
  • Page 56 REMKO EFS series Buffer tank The function reacts in cascade network identically to an operation via an individual controller. There are no special features to be observed in cascade operation. Reheating The function reacts in cascade network identically to an operation via an individual controller. There are no special features to be observed in cascade operation.

  • Page 57: Troubleshooting

    Troubleshooting 9.1 Fault messages The controller is a quality product and was DANGER! designed for many years of continuous use. Danger of death due to electric shock! Therefore, note the following points: - Disconnect the unit from the power supply The cause of an error is often not the controller immediately if safe operation can no longer be but the configuration of the connected compo-...

  • Page 58: Troubleshooting

    REMKO EFS series 9.2 Troubleshooting Pump noises are audible, sound of air in the line System bled? Bleed the system! Dispensing quantity is too low Sufficient water pressure in the secondary circuit of the system? Check the pressure in the secondary circuit of Plate heat exchanger scaled? the system;...

  • Page 59: Check Flow Probe Vfs 2-40

    9.3 Check flow probe VFS 2-40 DANGER! Danger of death due to electric shock! - Disconnect the unit from the power supply before opening the housing. - All works on the open unit may only be carried out by a specialist. Only with EFS 20.1 Check the flow probe as follows: Remove the front panel.
  • Page 60 REMKO EFS series Signal configuration VFS 2-40 Designation Technical description Line Temperature signal 0.5 - 3.5 V measured at pin 3 Yellow Flow rate signal 0.5 - 3.5 V measured at pin 3 White Ground Green Power supply 5 V DC Brown Fig.

  • Page 61: Flowsonic Flow Rate Probe

    9.4 FlowSonic flow rate probe Only for EFS 35.1 and 50.1 Check the flow probe as follows: Remove the front panel. DANGER! Connect the voltmeter directly to the plug in Danger of death due to electric shock! the controller (see figure for pin assignment). - Disconnect the unit from the power supply before opening the housing.

  • Page 62: Index

    REMKO EFS series Index Mounting the controller ....12 Automatic/manual mode ....27 Operator code .
  • Page 64 REMKO QUALITY WITH SYSTEMS Air-Conditioning | Heating | New Energies Telephone +49 (0) 5232 606-0 REMKO GmbH & Co. KG Hotline within Germany +49 (0) 5232 606-0 Klima- und Wärmetechnik Telefax +49 (0) 5232 606-260 Im Seelenkamp 12 E-mail info@remko.de...

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Fc 3.10

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