REMKO EFS Series Operating And Installation Instructions
Fresh water station
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- Operating and installation instructions (64 pages) ,
- Assembly and operating instructions manual (36 pages) ,
- Operating and installation instructions (52 pages)
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Summary of Contents for REMKO EFS Series
- Page 1 Operating and installation instructions REMKO EFS series Fresh water station Instructions for users and specialists EFS 36 0324-2022-11 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...
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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 1.7 Safety notes for installation and for the operator 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 REMKO GmbH & Co. KG at the time when the units are purchased and commissioned. The warranty conditions are detailed in the "Gen- eral business and delivery conditions". -
Page 7: Technical Data
Technical data 2.1 Unit data Series EFS 36 Nominal power at 10-45/65°C (KW-WW/HVL) Tap performance 10-45/65 °C l/min Tap performance 10-60/75 °C l/min Min. switch-on flow rate for primary pump l/min at nominal power NL count Max. operating pressure for heating side (primary) Max. -
Page 8: Unit Dimensions And Space Requirements
REMKO EFS series 2.2 Unit dimensions and space requirements Dimensions and minimum space requirements for assembly and maintenance work. Depending on the cus- tomer's piping, increased space requirements may have to be taken into account. Fig. 1: Device dimensions and minimum distances... -
Page 9: Pump Data
2.3 Pump data PWM logic (PWM 2) Fig. 2: PWM logic < 7% Pump off 15-95% Proportional performance range 7-12% Min. performance (operation) > 95% Max. power 12-15% Min. performance (start-up) We reserve the right to make technical changes for the purpose of technical advancement. -
Page 10: Design And Planning
Subject to technical changes! Fig. 3: Fresh water station with optional circulation set and optional return distribution A: Fresh water station 1: Cold water B: REMKO MPS storage tank 2: Hot water... -
Page 11: Design Of The Storage Tank
3.2 Design of the storage tank You can use the following table to calculate the approximate required volume of the buffer tank. Temperature in buffer tank [°C] HW temperature [°C] set on Reqd. Storage tank volume per controller litre of HW [Litre] Sample calculation for the design of the buffer tank: Temperature of buffer tank: 60 °C, required dispensing medium flow rate at water valve: 20 l/min DHW temperature set on the controller: 45 °C... -
Page 12: Setting The Temperature
REMKO EFS series 3.3 Setting the Temperature Set the required (maximum) domestic hot water temperature on the controller under "Main menu / hot water / target temperature". To ensure that scalding cannot occur at the water valve, the maximum hot water temperature must not exceed 60 °C. -
Page 13: Corrosion Protection
3.4 Corrosion protection To prevent corrosion damage to the plate heat exchanger, the following drinking water values must be observed: Copper soldered < 250 mg/l at 50°C < 100 mg/l at 75°C Chloride (CL-) < 10 mg/l at 90°C Sulphate <... -
Page 14: Calcification Protection
REMKO EFS series 3.5 Calcification protection The precipitation of chalk from the water increases massively at hot water temperatures above 55°C and a water hardness above 8.5°dH. For this reason, the hot water target temperature should be set as low as pos- sible while observing drinking water hygiene and, if necessary, the calcification should be reduced by using a softening or other suitable limescale treatment system. -
Page 15: Assembly
Assembly General notes NOTICE! To avoid damage to the system, the installation location must be dry, capable of carrying the load and frost-free. Wall installation Proceed as follows for wall mounting: Mark and drill two Ø 10 mm holes as shown in the illustration below Place expansion anchors Screw in the two upper screws with washer... - Page 16 REMKO EFS series Installing the circulation set (optional acces- Integration in a domestic connection group sory) (safety assembly) The installation of the circulation set should be car- ried out before any further installation work. Please note! Unscrew the safety valve with union nut from...
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Page 17: Hydraulic Connection
Hydraulic connection The figure below is an example with optional accessories (circulation unit). This illustration makes no claim to being complete and is no substitute for professional planning. Fig. 5: Hydraulic connection HRL: Heating return WW: Hot water HVL: Heating supply flow Circulation KW: Cold water Safety valve blow-off line... -
Page 18: Electrical Wiring
REMKO EFS series Electrical wiring General notes Work on the electrical system and the opening of electrical enclosures may only be carried out in a de-energised state and only by authorised spe- cialist personnel. Ensure correct terminal assign- ment and polarity for the connections. Protect the controller and electrical components from over- voltage. -
Page 19: Commissioning (Specialist)
Commissioning (specialist) 7.1 Commissioning A prerequisite for commissioning is the complete installation of all hydraulic and electrical components. Leak test and filling of the system Check all components of the system, including all elements and stations pre-assembled at the factory, for leaks and seal them accordingly in the event of any leaks. -
Page 20: Maximum Dispensing Medium Flow Rate
REMKO EFS series 7.2 Maximum dispensing medium flow rate The following diagram shows the maximum dispensing medium flow rate depending on the storage tank temperature; this assumes a pre-set hot water temperature of 45 °C at the dispensing connection. The integrated regulation prevents the temperature from decreasing as long as the maximum medium flow rate is not exceeded. - Page 21 The following diagram shows the maximum dispensing medium flow rate if the hot water temperature is 45°C at the dispensing connection, after being mixed with cold water with a temperature of 10°C. The hot water temperature set on the controller is 60°C. Fig.
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Page 22: Circulation Operation
In this operating mode, cir- vated (see the operating instructions of the con- culation begins at the start of the period that is troller). If the REMKO circulation pump is set. Circulation is deactivated after the set installed, the operating mode must be activated period expires. -
Page 23: Commissioning Report
7.4 Commissioning report System operator System location Serial numbers REMKO EFS 36 - Medium flow rate probes - Controller - Software version Ø = Primary piping Ø = Secondary piping Other installations Circulation set Return distribution set Miscellaneous: Are both circuits cleaned and bled properly? (no air noises in the pump) -
Page 24: Operation
REMKO EFS series Operation Temperature probe / flow sensor In order to ensure the fastest and most accurate A prerequisite for commissioning is the complete temperature measurement possible, an immersion installation of all hydraulic and electrical compo- probe is used for the secondary circuit, which is nents. -
Page 25: Shutdown
Shutdown If the fresh water station remains out of operation for a longer period of time, the power supply must be disconnected. If the fresh water station is permanently taken out of service, the power supply to all affected parts of the system must be disconnected and all affected pipes and parts of the system must be completely drained. -
Page 26: Care And Maintenance
REMKO EFS series Care and maintenance Care and maintenance The manufacturer recommends that annual main- tenance be carried out by authorised specialists. Cleaning the heat exchanger: If the water quality (e.g. high degree of hardness or heavy soiling) is likely to cause a build-up of deposits, cleaning must be carried out at regular intervals. -
Page 27: View Of The Unit And Spare Parts
View of the unit and spare parts Fig. 9: Spare parts We reserve the right to modify the dimensions and design as part of the ongoing technical development process Designation EFS 36 Designation EFS 36 Heating supply ball valve 1125572 Bracket for controller 1125581 Circulation pump... -
Page 28: Index
REMKO EFS series Index Minimum distances ..... . . 8 Assembly ......15 on the wall . - Page 30 REMKO EFS series...
- Page 32 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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