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

Fresh water station controller
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Operating and
installation instructions
REMKO EFS series
Fresh water station controller
Instructions for users and specialists
RS 2020
0325-2022-11 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 RS 2020 0325-2022-11 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......................4 1.1 General safety notes........................4 1.2 Identification of notes........................4 1.3 Personnel qualifications........................4 1.4 Dangers of failure to observe the safety notes................4 1.5 Safety-conscious working....................... 4 1.6 Safety instructions for the operator....................5 1.7 Safety notes for installation and inspection tasks................

  • Page 4: Safety And Usage Instructions

    REMKO EFS series 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.

  • Page 5: Safety Instructions For The Operator

    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 6: 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 7: Technical Data

    Technical data 2.1 Unit data Series RS 2020 Inputs Ttemperature sensors 4 Pt1000 Flow rate sensor 1 (0-500-Hz-interface) Outputs Semiconductor relays and 2 PWM outputs Potential-free extra-low voltage relay 1 (1) A 240 V~ (Semiconductor relay) Switching capacity 1 (1) A 30 V (Potential-free extra-low voltage relay) Total switching capacity...

  • Page 8: Device Dimensions

    REMKO EFS series 2.2 Device dimensions Fig. 1: Device dimensions Information provided without guarantee! We reserve the right to make technical changes within the frame- work of technical advancement. Unit description Assembly and installa- tion The device excels: 4.1 Mounting...

  • Page 9: Electrical Connection

    4.2 Electrical connection The controller is equipped with 4 relays in total to which loads such as pumps, valves, etc. can be connected: DANGER! Relays 1 … 3 are semiconductor relays, designed for pump speed control: Danger of death due to electric shock! - Disconnect the controller from the power - Conductor R1 …...
  • Page 10 REMKO EFS series T4 A 100 ... 240 V 50-60 Hz IP 20 R1-R3| 1 (1) A 240 V~ PWM 1 10 11 12 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24...
  • Page 11 MicroSD card slot Overview of relay and sensor allocation The controller is equipped with a MicroSD card Single station slot. With a MicroSD card, the following functions can be carried out: Store measurement and balance values onto the MicroSD card. After the transfer to a com- puter, the values can be opened and visual- ised, e.g.
  • Page 12 REMKO EFS series Cascade R2 (A2) S3 (A1) R2 (A1) S2 (A1) S4 (A1) A1: Station 1 A2: Station 2 Connection terminal Station 1 Station 2 Station 3 / 4 / 5 / 6 S1 /1/2) Flow primary circuit Flow primary circuit...

  • Page 13: Operation And Function

    Operation and function Operating control LED The controller is equipped with a multicolour LED Buttons and adjustment dial ® in the centre of the . indicating the following states: The controller is operated via 2 buttons and 1 ® adjustment dial (Lightwheel ) below the display: Permanently Colour...
  • Page 14 REMKO EFS series Selecting menu points and adjusting values If only one item of several can be selected, they will be indicated with radio buttons. When one item During normal operation of the controller, the dis- has been selected, the radio button in front of it is play is in the main menu.
  • Page 15 Adding a time frame In order to save the time frame, select Save and confirm the security enquiry with Yes. In order to add a time frame, proceed as follows: Select New time frame. In order to add another time frame, repeat the previous steps.
  • Page 16 REMKO EFS series Copying a time frame Changing a time frame In order to copy time frames already adjusted into In order to change a time frame, proceed as fol- another day / other days, proceed as follows: lows: Choose the days(s) into which the time frames Select the time frame to be changed.
  • Page 17 Removing a time frame Resetting the timer In order to delete a time frame, proceed as follows: In order to reset time frames adjusted for a certain day, proceed as follows: Select the time frame that is to be deleted. Select the desired day.
  • Page 18 REMKO EFS series In order to reset the whole timer, proceed as fol- Adjusting optional functions lows: In the Optional functions menu, optional func- Select Reset and confirm the security enquiry tions can be selected and adjusted. with Yes. In order to activate a function, select the desired function and confirm the enquiry with Yes.

  • Page 19: Commissioning

    Commissioning 6.1 Commissioning Commissioning the single station 1. Language When the hydraulic system is filled and ready for operation, connect the controller to the mains. Adjust the desired menu language. The controller runs an initialisation phase in which ® the Lightwheel glows green.
  • Page 20 REMKO EFS series 5. Date 7. Circulation Adjust the date. First of all adjust the year, then Activate or deactivate the circulation. the month and then the day. If the circulation is activated, further channels appear: 6. Set hot water temperature Select the circulation type.
  • Page 21 The current temperature difference between the 9. Stratified return hot water sensor and the return sensor is indicated Activate or deactivate the stratified return. as rT pipe angezeigt. The optimum temperature difference is approx. 5 NOTE For the stratified return function, the sensors stratified return source S2 and stratified return store S4 are required.
  • Page 22 REMKO EFS series Commissioning the cascade 3. Daylight savings time adjustment 1. Language Activate or deactivate the automatic daylight savings time adjustment. Adjust the desired menu language. 4. Time 2. System type Adjust the clock time. First of all adjust the Select the system type Station 1 …...
  • Page 23 7. Circulation DActivate or deactivate the circulation. Adjust the speed at the circulation pump. If the desired temperature difference is reached, confirm the offset with the right button If the circulation is activated, further channels ( ). appear: Select the circulation type. NOTE For all circulation types, the circulation sensor S3 is required.
  • Page 24 REMKO EFS series 9. Stratified return Activate or deactivate the stratified return. For more information about the stratified return, see the chapter "Stratified return". NOTE For the stratified return function, the sensors stratified return source S2 and stratified return store S4 are required.

  • Page 25: Main Menu

    6.2 Main menu Main menu Station 1 Main menu Single station In this menu, different menu areas can be selected. The following menus are available in cas- In this menu, different menu areas can be cade operation: selected. The following menus are available: Status Status Hot water...
  • Page 26 REMKO EFS series Menu structure (continued) Main menu Level 1 menu item Level 2 menu item Cascade *) Type Timer Circulation Offset Disinfection rTon Startified return Optional functions rToff Starting time Primary pump Blocking protection Circ. pump Type Error relay...

  • Page 27: Status

    6.3 Status In the Status / Overview menu, all current meas- ured values are indicated in a clear system In the status menu of the controller, the status graphic. Depending on the adjustments already messages for every menu area can be found. made, the system graphic consists of up to 3 parts: The first part shows the primary circuit with the cor- responding values.
  • Page 28 REMKO EFS series Status / Overview Cascade Cascade *) *) Available for System type Station 1 only The Status / Cascade menu indicates different status information of the cascade. The overview indicates the highest temperatures of the cascade as well as the overall flow rate. In order to show the values of the individual stations, ®...
  • Page 29 Stratified return Device info The Status / Stratified return menu indicates The Status / Device info menu indicates informa- status information of the function. tion about soft- and hardware. Error relay The Status / Error relay menu indicates if the potential-free error relay is active or inactive.
  • Page 30 REMKO EFS series Messages In the Status / Messages menu, error and warning messages are indicated. During normal operation, the message Everything OK is indicated. A line break or short circuit in a sensor ® line is indicated as !Sensor fault. In the case of an error, the LED of the Lightwheel additionally flashes red.

  • Page 31: Hot Water

    6.4 Hot water Set hot water temperature In this menu, all adjustments for the DHW heating This parameter can be used for adjusting the Set can be made. The following parameters and func- hot water temperature temperature which is to be tions are available: reached at the hot water sensor.
  • Page 32 REMKO EFS series Comfort Main menu / Hot water / Comfort Comfort Adjustment Description Adjustment range / selection Factory setting channel Comfort function for the plate Comfort Yes, No heat exchanger Indication of the set tempera- Set temp. ture of the plate heat...
  • Page 33 Emergency operation In order to set the emergency speed, turn the ® Lightwheel and confirm the adjustment with the right button ( ). If a sensor failure inhibiting DHW heating has occurred, activate the emergency operation in the Emergency operation channel. Main menu / Hot water / Emerg.

  • Page 34: Cascade

    REMKO EFS series 6.5 Cascade The Cascade menu is only available if the System type Station 1 has been selected. Main menu / Cascade Cascade Adjustment Adjustment range / channel Description selection Factory setting Threshold for activating the next station of Thresh.

  • Page 35: Optional Functions

    6.6 Optional functions In this menu, optional functions can be selected and adjusted. Circulation Main menu / Opt. functions / Circulation Circulation Adjustment Adjustment range / channel Description selection Factory setting Circulation Activation of the function Yes, No Therm+Dem., Type Variant Demand, Thermal, Duration...
  • Page 36 REMKO EFS series Running an offset: The circulation pump is switched off. NOTICE! Thermal + Demand No draw-off may be carried out during the The temperature at the return sensor is monitored. offset. All ball valves of the station must be fully The circulation pump switches on, if the tempera- opened (normal position).
  • Page 37 The menu End offset? appears. Complete the offset by pressing the right button ( ). Disinfection Main menu / Opt. functions / Disinfection Disinfection Adjustment Adjustment range / channel Description selection Factory setting Disinfection Activation of the function Yes, No Start? Manual start of the disinfection Set temp.
  • Page 38 REMKO EFS series After disinfection has ended, the circulation pump remains switched on for the adjusted Overrun time. When the Disinfection function is active, it can be cancelled by means of the menu item In cascade operation, the progress is divided Cancel? at any time.
  • Page 39 The Stratified return function can be used for keeping the temperature stratification inside the store from being destroyed when the circulation is The controller uses the sensor input S4 for running. If the temperature difference between the measuring the temperature at the store sensor. return sensor and the store sensor exceeds the adjustable value Switch-on temperature differ- The 3-way valve has to be mounted in a way so...
  • Page 40 REMKO EFS series Error relay Main menu / Opt. functions / Error relay Error relay Adjustment Adjustment range / channel Description selection Factory setting Error relay Activation of the function Yes, No Inverted, Normal, Type Error relay type Disturb., Warning,...

  • Page 41: Basic Settings

    6.7 Basic settings Main menu / Basic settings Basic settings Adjustment Adjustment range / channel Description selection Factory setting Time Adjustment of the current time 00:00 … 23:59 01.01.2001 … Date Adjustment of the date 01.01.2010 31.12.2099 Auto DST Automatic daylight saving time adjustment Yes, No Deutsch, English, Language...

  • Page 42: Sd Card

    REMKO EFS series 6.8 SD card The controller will only recognise a firmware update file if it is stored in a folder named NEMUX on the first level of the SD card. – Create a folder named NEMUX on the SD card and extract the downloaded ZIP file into this folder.
  • Page 43 Loading controller adjustments To load controller adjustments from an SD card, select the menu item Load adjustments. In cascade operation, the SD card menu will be available on each station controller. In order to The File selection window will appear. log cascade values, store or load controller Select the desired .SET file.

  • Page 44: User Code

    REMKO EFS series 6.9 User code 6.10 Manual mode In the User code menu, a user code can be In the Manual mode menu, the operating mode of entered. Each number of the 4-digit code must be all relays used can be adjusted.

  • Page 45: Troubleshooting

    Troubleshooting 7.2 Troubleshooting 7.1 General notes ® Lightwheel flashes red The unit and components are manufactured using Sensor fault. state-of-the-art production methods and tested several times to verify that they function correctly. The message !Sensor fault instead of a temper- However, if malfunctions do occur, please check ature is shown on the sensor display channel.
  • Page 46 REMKO EFS series The display is permanently off Press the right button ( ). Display illuminated? Controller has been in standby, everything OK Check the power supply of the controller. Is it Check the supply line and reconnect it. disconnected? The fuse of the controller could be blown.
  • Page 47 Draw-off temperature is too low. Is the set HW temperature adjusted high enough on the controller? Increase the adjustment value for the set HW Pressure loss in the primary circuit too high? temperature. Check the pipework of the primary circuit; change if necessary.

  • Page 48: Index

    REMKO EFS series Index Adding a time frame ..... 15 Operation and function ....13 Adjusting optional functions .
  • Page 50 REMKO EFS series...
  • Page 52 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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