eta Fresh water module 33 Operating Instructions Manual
eta Fresh water module 33 Operating Instructions Manual

eta Fresh water module 33 Operating Instructions Manual

Fresh water module

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2019-11-22
EN
0000000131
V.016
X.35.11, X.47.0
93994-004
Fresh water module
Operating Instructions

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Summary of Contents for eta Fresh water module 33

  • Page 1 2019-11-22 0000000131 V.016 X.35.11, X.47.0 93994-004 Fresh water module Operating Instructions...
  • Page 2 ETA Heiztechnik Gewerbepark 1 A-4716 Hofkirchen an der Trattnach Tel: +43 (0) 7734 / 22 88 -0 Fax: +43 (0) 7734 / 22 88 -22 info@eta.co.at www.eta.co.at...
  • Page 3: Table Of Contents

    Technical data "Fresh water module 33" ........
  • Page 4: General

    On non-compliance with this safety instruction, there is Copyright a risk of major physical injury. All contents of this document are property of ETA Heiztechnik GmbH and are protected by copyright. Warranty, guarantee and liability Any reproduction, transfer to third parties or use for other purposes is prohibited without written permission from the owner.
  • Page 5 Repair of defects For repairs of defects carried out by the customer or by a third party, ETA shall only bear the costs or remain obligated by warranty if this work was approved in writing in advance by the customer service of ETA...
  • Page 6: Ce-Conformity

    CE-Conformity CE-Conformity ETA Heiztechnik GmbH A-4716 Hofkirchen an der Trattnach, Gewerbepark 1 www.eta.co.at Declaration of conformity Product: Fresh water module with energy-saving pumps Types: ETA FWM-E EU Directives: 2004/108/EC Directive relating to electromagnetic compatibility (EMC Directive) 2006/95/EC Directive relating to electrical equipment designed for use within certain voltage limits...
  • Page 7: Description

    Description Technical data "Fresh water module 33" Description Technical data "Fresh water module 33" Fig. 3-2: Dimensions Technical data Tap output 33 litres/minute with 45 °C hot water at a buffer temperature of 60 °C. Pressure loss (drinking water side)
  • Page 8: Technical Data "Fresh Water Module 44

    1" cold water connection Standards 10 1" hot water connection Corresponds to DIN DVGW or ÖNORM B5014- 11 Optional circulation pump with safety valve (10 bar) and drain cock to empty the hot water circulation line 12 Circuit board [EM-C] www.eta.co.at...
  • Page 9: Function

    Description Function Function • Flashing RED (5x every 4 seconds): Automatic venting by the admixing pump does not work. There may be air in the primary circuit of the Potentiometer and operating display fresh water module. Or the admixing pump, The temperature of the hot water can be set with the cabling or the outlet on the circuit board is potentiometer on the under side, from 40°C to 60°C.
  • Page 10 However, the decisive advantage of the fresh water module compared with a hot water tank is its very fast flow, which leaves almost no time for the lime to build up in the plate heat exchanger. In the same way, the www.eta.co.at...
  • Page 11: Information For Installation

    Description Information for installation Information for installation Hydraulic connection of the fresh water module The schematic representation also contains the optionally available circulation set. A bleed valve with Hydraulically uncoupling the fresh water module, sufficient dimensions must be installed at the highest only installing a solenoid valve in exceptional point of the flow line from the buffer to the fresh water cases...
  • Page 12 Information for installation Description • Check the pipe dimensions, lengths and number of fittings and calculate the line resistance. www.eta.co.at...
  • Page 13: Installation

    The technical illustrations show the assembly of the Ideally, the fresh water module is laterally connected to "fresh water module 33". These graphics apply equally the buffer. Since this ensures optimal ventilation of the to other available fresh water modules from ETA.
  • Page 14: Select Installation Site

    Push the bracket with the clamping jaws onto the nipple and fasten using the two screws. Fig. 4-3: Mounting holes for wall installation The fresh water module weighs approximately 20 kg. Fig. 4-5: Bracket with clamping jaws www.eta.co.at...
  • Page 15: Connecting Piping

    Installation Connecting piping Hang the fresh water module on the 4 screws present Mounting the screw joints on the bracket and fasten. At the top, mount the ball valve on the flow connection using the supplied flat seal. Fig. 4-6: Fastening the fresh water module in place Fig.
  • Page 16 The preferred lateral connection of the fresh water module to the buffer is shown in the following. Establish the flow line from the buffer to the fresh water module. Fig. 4-11: Flow line to the fresh water module Fig. 4-13: Return line to the buffer www.eta.co.at...
  • Page 17 Installation Connecting piping Install bleed valve Connecting the cold water pipe A bleed valve with sufficient dimensions must be Connect the cold water pipe to the fresh water module. installed at the highest point. Fig. 4-14: Bleed valve If the fresh water module was connected to the buffer Fig.
  • Page 18: Circulation Set

    18 mm joint (DN15) seal. Safety valve (10 bar) Circulation pump Drain cock to bleed the hot water circulation line Joint with 1" outer thread Fig. 4-19: Mounting the joint www.eta.co.at...
  • Page 19 If the ETA circulation set is not used but instead an external circulation set is installed, you may not use thermally regulated pumps. Because this will Dripping safety valve due to pressure surges and...
  • Page 20: Configuration

    Tab. 5-1: Example with heating circuit and fresh water overview. module If there is already a connection between the buffer and the heating circuits, the fresh water module must only be added to this connection as an additional consumer. www.eta.co.at...
  • Page 21 Configuration Assigning a terminal for the optional solenoid valve This step is only necessary if the fresh water module is installed in the flow between the heat producer and the buffer, meaning that a solenoid valve is required. The solenoid valve is connected to the circuit board [EM-C] at the terminal [S102 LZ] and must be assigned manually.
  • Page 22: Electrical Connections

    In the example listed above, the terminal resistor must be removed from the circuit board [GM-C] at [X4] and set on circuit board [EM-C] at [X1]. www.eta.co.at...
  • Page 23 Electrical connections CAN bus installation Check the node numbers if the circuit boards are the same design If multiple circuit boards of the same design (e.g.: two [EM-C]) are connected to one another via CAN-bus, those circuit boards must have different and consecutive node numbers.
  • Page 24: Circuit Board Em-C4

    Temperature input Primary return S600 T3 Temperature input Free (can be used for buffer) S600 T4 Temperature input Free (can be used for buffer) S600 T5 Temperature input Potentiometer for the hot water temperature S600 T6 Temperature input Hot water www.eta.co.at...
  • Page 25 Electrical connections Circuit board EM-C4 Terminal Function Default assignment S601 RS-485 bus S602 PWM output Speed control for buffer pump S603 PWM output Speed control for admixing pump S604 24 V input Flow sensor with temperature sensor S605A CAN bus From boiler S605B CAN bus...
  • Page 26: Commissioning

    Carry on doing this until no more air escapes from the fresh water module. Mounting the plastic cover Reattach the plastic cover following commissioning. Pull off the protective film and affix the ETA logo in the corresponding recess. www.eta.co.at...
  • Page 27 Commissioning Adjusting the runtime of the circulation pump After installation, and after all lines have been connected and vented, the runtime of the circulation pump must be adjusted. Thus unnecessarily long run times of the circulation pump can be prevented and the risk of calcification of the heat exchanger in the fresh water module is minimized.
  • Page 28: Information On Cold Water

    ETA fresh water This is why ETA offers two versions of fresh water module, are unable to cope. modules or replacement heat exchangers. The The heat exchangers offered by ETA do not inexpensive standard solution with stainless steel exhibit any differences in terms of calcification.
  • Page 29: Thresholds

    Information on cold water Thresholds cannot be ruled out depending on other water Conductance Water hardness Resistance properties. At a conductance of over 1000 μS/cm approx. >28.6° Corrosion is corrosion is likely. > 1000 μS/cm likely Therefore, the rule of thumb results in the following thresholds for copper-soldered heat exchangers in If the water hardness is minimised by a regard to water hardness:...
  • Page 30: Descaling

    'as new'. In the event of heavy calcification, we recommend replacing the plate heat exchanger. The fair spare part price offered by ETA means that replacement is often even cheaper than purging or descaling, both of which are labour- intensive.
  • Page 31: 10 Etatouch Controller

    ETAtouch controller Up to software version X.35.X 10 ETAtouch controller 10.1 Up to software version X.35.X Inside these time windows, the upper part of the buffer is maintained at no lower than the configured hot water temperature. Outside the set time windows, the hot 10.1.1 [Fresh water module] 2 pumps water is maintained at the lowest set temperature of...
  • Page 32 This timer displays the set times of the current day to guaranteed. Protracted emergency mode operate the circulation pump. These time windows are therefore calcify the heat exchanger. displayed as a black bar in the timer. www.eta.co.at...
  • Page 33 ETAtouch controller Up to software version X.35.X 10.1.1.3 Operation To set the circulation times, tap the [Circulation times] timer overview screen. A screen opens. Setting charging times and temperatures of the fresh water module With the [Stand-by times] timer, you can set different time windows and hot water temperatures for the fresh water module for each day of the week.
  • Page 34: Setting A Time Window

    To do this, tap the accordingly for all other function blocks with timers. [Copy] button in the overview screen. charging times, timer overview. An overview opens. Fig. 10-5: Overview Fig. 10-3: Overview www.eta.co.at...
  • Page 35 ETAtouch controller Up to software version X.35.X A screen opens showing the individual days of the week. Fig. 10-6: Copying time windows Make your selection and press the [Accept] button to save.
  • Page 36: Software Version X.36.0 And Later

    This is useful if, for is sufficiently hot. example, the time window ends at 8:00 pm and you shower at 9:30 pm . When you then turn on the hot water briefly, the circulation pump starts, and www.eta.co.at...
  • Page 37 ETAtouch controller Software version X.36.0 and later you will have hot water for showering shortly 10.2.1.1 Setting the hot water charging times afterwards. This runtime (outside the time window) is set in the Open the overview screen of the set charging text menu (parameter [Circulation pump delay]).
  • Page 38: Setting A Time Window

    In this example, the hot water is charged between 08:00 a.m. and 8:00 p.m. to 55 °C. Set-back temperature. Outside the time window, the hot water is charged to this set temperature. Setting the time window is described below. Fig. 10-9: Access charging times www.eta.co.at...
  • Page 39 ETAtouch controller Software version X.36.0 and later Setting the charging times Time windows from Wednesday copied Saturday and Sunday. 1. In the overview, select the charge time. In each field, use the arrow keys ( ) to set the 1. In the overview, press the [Weekly plan] button time and temperature.
  • Page 40: Text Menu - Adjustable Parameters

    This function is also called the "Auto Loop" function. This function is set to [Yes] by default. If [No] is set, the operating times for the circulation pump can be set manually. www.eta.co.at...
  • Page 41 ETAtouch controller Text menu - Adjustable parameters Explanation [Circulation runtime] Optional: only for circulation pump This parameter specifies the duration for operating the circulation pump after it has been started by the control system. Once this time has expired, the circulation pump is switched off for the set duration [Circulation pause].
  • Page 42 Simplified electrical connection (overview) 11 Simplified electrical connection (overview) www.eta.co.at...
  • Page 43 EM-C S100 S103 Frischwassermodul Frischwassermodul 93994-1...
  • Page 44 DOWNLOAD www.eta.co.at...

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Fresh water module 44

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