REMKO EFS 25 Assembly And Operating Instructions Manual Download Page 1

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Assembly and operating instructions

Read the instructions prior to performing any task!

REMKO fresh water station Controller EFS
Instructions for user and specialist

0066-2013-10 Edition 1, en_GB

Summary of Contents for EFS 25

Page 1: ...Assembly and operating instructions Read the instructions prior to performing any task REMKO fresh water station Controller EFS Instructions for user and specialist 0066 2013 10 Edition 1 en_GB ...

Page 2: ... the orig inal 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 ...

Page 3: ...modification and changes 5 1 9 Intended use 6 1 10 Safety conscious working 6 1 11 Warranty 6 1 12 Transportation and packaging 6 1 13 Environmental protection and recycling 6 2 Technical data 7 2 1 Unit data 7 2 2 Cable specification 8 3 Unit construction 9 3 1 Housing 9 3 2 Display 9 4 Operation 12 4 1 Buttons and Display 12 4 2 Operating modes 12 4 3 Setting menu 15 4 4 Functions 16 4 5 Informa...

Page 4: ...or cause serious injury WARNING This combination of symbol and signal word warns of a potentially hazardous situation which if not avoided may be fatal or cause serious injury CAUTION This combination of symbol and signal word warns of a potentially hazardous situation which if not avoided may cause injury or mate rial and environmental damage NOTICE This combination of symbol and signal word warn...

Page 5: ...ilst at a standstill as a matter of prin ciple n Appropriate hazard prevention measures must be taken to prevent risks to people when per forming installation repair maintenance or cleaning work on the units n The setup connection and operation of the units and its components must be undertaken in accordance with the usage and operating conditions stipulated in this manual and comply with all appl...

Page 6: ...ioned The warranty conditions are detailed in the Gen eral business and delivery conditions Further more only the parties to a contract can conclude special agreements beyond these conditions In this case contact your contractual partner in the first instance 1 12 Transportation and pack aging The units are shipped in sturdy transport pack aging or within the heat pump housing Immedi ately check t...

Page 7: ... inputs outputs Signal inputs 1 5 Number Type of signal inputs 1 4 Type of signal input 5 5 Pt1000 temperature detection Bus communication for cascading Signal output RS type Maximum contact rating Potential free NO contacts 1 0 A 24 V Signal outputs PWM R1 PWM R2 type Maximum load capacity PWM 250 Hz 11 V Characteristics 0 PWM Pump off 100 PWM Maximum speed 10 mA Hydraulic variants Number 5 Displ...

Page 8: ...tegory Class II 2500 V 2 2 Cable specification Mains cable Mains power supply type Outer diameter of jacket Single wire cross section rigid finely stranded with wire end sleeves H05 VV NYM 6 5 mm to 10 mm 2 5 mm2 1 5 mm2 Diameter of the internal strain relief mm 6 5 to 10 Signal cable Length of probe cable m 100 m including extension Extension cable for probe configuration Cross section per conduc...

Page 9: ...y Overview error v 1 2 3 4 1 2 4 3 Fig 2 Overview over the areas of the display all elements visible 1 System diagram 2 Setting menu 3 Pictograms for functions 4 Operating and setting values The areas of the display are described below Symbols of the system diagram The table below describes the symbols in the system diagram no 1 in Fig 2 Symbol Description Pipe External heat exchanger Domestic hot...

Page 10: ...ature 5 Reset to factory setting Pictograms for functions The table below describes the pictograms for func tions no 3 in Fig 2 Symbol Description Manual mode Pump is controlled with speed regulation 1 Alarm output 1 Legio Thermal disinfection 1 1 The symbol is visible as long as the function the parameter is being edited in the setting menu REMKO fresh water station Controller 10 ...

Page 11: ...ndow that is currently set displayed in the setting menu or that actually includes the current time The time control of a functions consists of 1 or 3 time windows that can be set Example Time window 1 06 00 08 00 Time window 2 11 00 12 30 Time window 3 17 00 19 00 4 Additional information On off Switching status switching condition on off max min maximum value minimum value Σ cumulative operating...

Page 12: ...ettings in writing Display during operation n A component flashing in the system diagram means the following The operating value or setting value that is displayed applies to the flashing components Exception It always flashes in manual mode n Displays that are automatically alternating are shown overlapping in the figures Example Fig 6 4 2 Operating modes Change operating mode NOTICE Danger of da...

Page 13: ...ot guarantee that the Controller will function correctly after changing the variant Manual operating mode Method of operation n The background lighting is red the open end wrench symbol flashes n The outputs of the controller pumps valves can be switched manually Possible switching statuses 0 Off 1 On 0 100 Control the HE pump via PWM only H1 H2 A Automatic operation in accordance with the setting...

Page 14: ... operating mode the system is controlled automatically The following actions are possible n Display status status display Display status of external components temperatures switch statuses running times 4 n Display the saved minimum and maximum values temperature probe or the cumulative difference values operating hours1 of the pumps and valves 5 Cumulative values Σ symbol Operating hours since in...

Page 15: ...ss SET for 2 seconds 7 The setting menu is displayed 7 7 7 7 6 6 6 6 Fig 8 Automatic operating mode operation 4 3 Setting menu Overview The diagram below provides an overview of the structure of the setting menu Domestic hot water target temp Time SET the time Setting Functions SET Heat content F 01 Thermal disinfection Factory setting Circulation F 02 SET 5 Sek Reset to factory setting Distrib va...

Page 16: ...d If the circulation function was not activated only the domestic hot water target temperature is increased to the disinfection tem perature Thermal disinfection is started via the setting menu After a manual start thermal disin fection must be stopped again manually For safety reasons thermal disinfection is deactivated after one hour of running time if it was started manually Detailed settings f...

Page 17: ...u can activate a function as follows Function number flashes 1 Press SET The function is selected and flashes 2 Press SET oFF is displayed 3 Press SET oFF flashes 4 Press rs on flashes 5 Press SET The function is activated 6 Set the key variables as described below Fig 11 Activate function Set key variable The functions have a different number of key varia bles The value of a key variable is alway...

Page 18: ...e of a time window When setting the start time of a time window the following is displayed to the left of the start time see Fig 14 n n Number of time window 1 3 its start time was set here 1 n on Fig 14 Key variable of time window start End time of a time window When setting the end time of a time window the following is displayed to the left of the end time see Fig 15 n n Number of time window 1...

Page 19: ...le has the value on This is displayed as follows n Higher level key variable Bold font n Dependent key variables Below the higher level key variable and indented to the right Example In the table of the circulation function the probe input switch on temperature and switch off temperature key variables are only displayed if the temperature control has the value on minimum max imum factory setting T...

Page 20: ...mperature control is deactivated oFF n Controlled by temperature if the temperature control is activated on Flow control Flowing for a short time 5s switches the circulation pump on for the duration of activation After the duration of activation expires the circulation pump remains switched off at least for the duration of the waiting time The flow con trol works independent of the clock control K...

Page 21: ...troller If both stations are active the higher cold water temperature is used as the switching value Key variable min max Factory setting Activation on oFF oFF Sliding hot water temperature Adjusts the domestic hot water target temperature to the temperature level of the buffer tank for pre heating systems that are discharged from the Buffer tank without re heating Tww target TVL 5 K This function...

Page 22: ...nnection must not exceed 3 m 2 way valves must be integrated into the cold water pipe and connected to R1 The circulation pump must be plugged into a combined circulation phase pro vided by the customer ahead of the two modules Use only original REMKO accessories Fig 26 Cascade The cascade function must be activated in both controllers one controller must be configured as the master MA and the oth...

Page 23: ...s etc follow the instruc tions provided by the relevant manufacturer Opening closing the housing Remove the front panel n Grasp the front panel 1 by the grip grooves on the side 2 and pull it forwards 3 Fig 27 2 2 1 3 5 4 Fig 27 Remove the front panel 1 Front panel 2 Grip grooves 3 Pull front panel forwards 4 Screw 5 Terminal cover Attach the front cover n Position the front panel 1 carefully and ...

Page 24: ...f death due to electric shock Before opening the housing disconnect the controller from the power supply Ensure that the power supply cannot be switched on inadvertently when the housing is open Do not use the housing as a drilling tem plate 1 If required remove the terminal cover 2 Screw in the screw for the top mounting opening 1 Fig 28 so that the screw head has a distance of 5 7 mm to the moun...

Page 25: ...rs PE from the power supply pump cables and valve cables are connected to the terminal block earth con ductors All cables are located so that people cannot step on them or trip over them The cables fulfil the requirements specified in The local power supply matches the data on the name plate of the controller The power supply cable is to be connected to the mains as follows with a plug to a wall s...

Page 26: ... for terminal block power supplies 3 Terminal block signals 1 4 4x probe input temperature probe Pt1000 5 1x communication connection for cascading RS 1x signal output potential free relay contact for protective low voltages PWM R1 2x control outputs control for high efficiency pumps PWM R2 Connection PWM brown blue 7x ground combined ground for probe inputs and communication connections as well a...

Page 27: ...hen the strain reliefs at the top When using a strain relief at the top use the plastic bridge as described below If the opening of a strain relief is too large e g for thin cables turn the strain relief frame bend it downwards Only use strain reliefs with cabling through the underside of the housing For cabling through the back of the housing use external strain reliefs Insert or remove plastic b...

Page 28: ...ow rate secondary Outputs Ter minal Individual opera tion Cascade opera tion R1 N Switching valve R2 N Return valve optional Return valve optional on master controller R3 N Lconst N Primary pump secondary pump circulation Primary pump secondary pump circulation on master controller PWM R1 Primary pump Primary pump PWM R2 Secondary pump circulation Secondary pump circulation on master controller Rs...

Page 29: ...only have to set the date and time Fig 33 T Fig 33 Setting the time T Time For information about operation refer to Values can be changed retroactively within con trolled operation The following applies n s ESC r navigates forwards and backwards block by block Fig 33 s forwards ESC r backwards n Navigating with s ESC r is always pos sible after completing a block n Retroactive changes to a block a...

Page 30: ... of the connected compo nents The following notes for identifying errors refer to the most common causes of errors Do not send the controller in until you are sure that none of the causes of errors described here apply General errors The unit and components are manufactured using state of the art production methods and tested several times to verify their correct function How ever if alarms should...

Page 31: ...Flashes Manual operation is switched on output R1 is set to 0 off Switch on automatic operating mode n The pump symbol does not rotate n The display is red A short circuit or an interruption for the temperature probe n Query the current value of the connected temperature probe on the controller n Check the probes and cables The primary pump runs even though no domestic water is being dispensed The...

Page 32: ...re is a wiring fault n Check the valve n Check the wiring of R1 Output R1 was overloaded Cause The values permitted for R1 according to the name plate were exceeded continuously the output was switched off Check the electrical data of the valve replace the valve if necessary R1 is switched back on automatically A short circuit occurred at output R2 Possible causes n The valve is defective n There ...

Page 33: ...Basic and Premium Regulation stops FriwaMidi FriwaMaxi FriwaMega The hot water temperature at terminals 2 is used for regulation An error on E 1 T has no long term effect on regulation Medium flow rate secondary E 1 V Regulation stops Check the temperature probe Pt1000 DANGER Danger of death due to electric shock Before opening the unit ensure that all cables that lead to the unit are disconnected...

Page 34: ...and closing the housing 23 Operating mode Automatic 14 Change 12 Manual mode 13 Off 13 P Packaging disposal 6 Pictograms for functions 10 R Recycling 6 Reset to factory setting 16 S Safety Dangers of failure to observe the safety notes 4 General 4 Identification of notes 4 Instructions for the operator 5 Note for inspection work 5 Note for installation work 5 Personnel qualifications 4 Safety cons...

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Page 36: ...ct as advisers to our customers in air conditioning and heating technology SFlbCustomer Service Our equipment operates precisely and reliably However in the event of a fault REMKO customer service is quickly at the scene Our comprehensive network of experienced dealers always guarantees quick and reliable service REMKO INTERNATIONAL and also right in your neighbourhood Make use of our experience a...

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