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Technical data "Fresh water module 44"

Description

3.2

Technical data "Fresh water module 44
"

Fig. 3-3: Components

Bleed screw

Return temperature sensor for hot water circuit

1" flow connector from buffer

Admixing pump as calcification protection

Flow temperature sensor for hot water circuit

Buffer pump for hot water circuit

Flow sensor with temperature sensor for hot water

1" return connection to buffer

1" cold water connection

10 1" hot water connection
11 Optional circulation pump with safety valve

(10 bar) and drain cock to empty the hot water
circulation line

12 Circuit board [EM-C]

Fig. 3-4: Dimensions

Technical data

Tap output

44 litres/minute with 45°C hot water at a buffer
temperature of 60°C

Pressure loss (drinking water side)

20 litres/minute = 160 mbar (1,6 mws)
44 litres/minute = 560 mbar (5,6 mws)

Connections (drinking water side)

DN25 (1") internal thread; according to DIN
DVGW or ÖNORM B5014-4

Connections (hot water side)

DN25 (1") internal thread

Purging connections

DN15 (1/2")

Pumps

Two speed-regulated highly efficient pumps for
hot water preparation and calcification
protection (admixing pump)

Standards

Corresponds to DIN DVGW or ÖNORM B5014-
4

Содержание Fresh water module 33

Страница 1: ...2019 11 22 EN 0000000131 V 016 X 35 11 X 47 0 93994 004 Fresh water module Operating Instructions...

Страница 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...

Страница 3: ...et 18 5 Configuration 20 6 Electrical connections 22 6 1 Requirements 22 6 2 CAN bus installation 22 6 3 Circuit board EM C4 24 7 Commissioning 26 8 Information on cold water 28 8 1 General 28 8 2 Cal...

Страница 4: ...nce with this safety instruction there is a risk of physical injury DANGER On non compliance with this safety instruction there is a risk of major physical injury 1 2 Warranty guarantee and liability...

Страница 5: ...e practical experience without having the installation checked by a trained and responsible expert we exclude defects in our delivery and conse quential damages resulting from this cause from our warr...

Страница 6: ...ical and electronic equipment RoHS 2 Directive Applied Standards EN 60335 1 2012 Household and similar electrical appliances Safety Part 1 General requirements IEC 61000 6 1 2 2005 Electromagnetic com...

Страница 7: ...11 Optional circulation pump with safety valve 10 bar and drain cock to empty the hot water circulation line 12 Circuit board EM C Fig 3 2 Dimensions Technical data Tap output 33 litres minute with 4...

Страница 8: ...Optional circulation pump with safety valve 10 bar and drain cock to empty the hot water circulation line 12 Circuit board EM C Fig 3 4 Dimensions Technical data Tap output 44 litres minute with 45 C...

Страница 9: ...manual setting of the hot water temperature is defective 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 fresh water...

Страница 10: ...same way the lime build up has little opportunity to form as it is purged from the plate heat exchanger as a result of the high flow speeds In order to protect the plate heat exchanger against calcifi...

Страница 11: ...eat producer to the buffer The solenoid valve is connected to the circuit board EM C at the terminal S102 LZ The ouput of the buffer pump from the fresh water module must then be duplicated i e additi...

Страница 12: ...12 www eta co at Information for installation Description Check the pipe dimensions lengths and number of fittings and calculate the line resistance...

Страница 13: ...gth to limit pressure losses The length of the CAN Bus line supplied for connection to the boiler is 10 m The 3 temperature sensors for the buffer can be connected to the circuit board EM C of the fre...

Страница 14: ...wall installation The fresh water module weighs approximately 20 kg Mounting the fresh water module on the buffer For mounting the fresh water module on the buffer a bracket with clamping jaws for 6...

Страница 15: ...er module Keep this in fresh water module so that it is available if later a circulation set is retrofitted Fig 4 7 Joint Mounting the screw joints At the top mount the ball valve on the flow connecti...

Страница 16: ...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 If a lateral connection is not possible the fresh wa...

Страница 17: ...rs such as 15 mm CU or 1 2 galvanised for example then pressure shocks are to be expected In order to protect all components against pressure shocks we recommend fitting a small diaphragm pressure exp...

Страница 18: ...n pump 4 Drain cock to bleed the hot water circulation line 5 Joint with 1 outer thread For the fresh water module 44 the joint is already included in the delivery scope of the fresh water module Keep...

Страница 19: ...possible that the safety valve opens a little and begins to drip Similar to a pressure free under counter storage tank or a hot water tank If the water installation is designed with rigid pipes and n...

Страница 20: ...FWM 2pumps function block this is already installed at the factory For monitoring purposes check whether this is shown in the Selected function blocks column for the circuit board EM C 0 in the functi...

Страница 21: ...02 LZ and must be assigned manually Assigning terminal 1 In the Selected function blocks field first select the function block of the fresh water module FWM FWM 2pumps 2 Double tap at the buffer pump...

Страница 22: ...it is safely isolated from supply CAUTION Flexible stranded conductors If flexible stranded conductors are not used for the wiring the contacts in the plug connections will be subjected to excessive m...

Страница 23: ...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 In this way they are recognized in CAN bus and can be con...

Страница 24: ...intended for motor ball valves of cascade systems in order to activate the subsequent fresh water module also referred to as Slave module This output can also be used for a solenoid valve in order to...

Страница 25: ...ed 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 Free X1 CAN Bus terminal resistor...

Страница 26: ...en the hot water tap once more and carry out the steps again Carry on doing this until no more air escapes from the fresh water module Mounting the plastic cover Reattach the plastic cover following c...

Страница 27: ...er in the fresh water module is minimized You can determine the required running time of the circulation pump in the following way Start the circulation pump in the control system by means of manual o...

Страница 28: ...ven become irreparable Due to the fact that 1 litre of water contains about 18 mg of calcium for each dH the risk of calcifi cation increases with increasing water hardness One litre of water with 10...

Страница 29: ...28 6 dH Corrosion is likely Conductance Water hardness Resistance Substance Standard heat exchanger soldered with copper solder INOX heat exchanger soldered with stainless steel brazing solder Appear...

Страница 30: ...d 5 to 12 per cent acetic acid or 10 to 20 per cent formic acid is suitable for descaling purposes Both acids are available from drugstores Pay attention to the concen tration CAUTION Always pour the...

Страница 31: ...way See the following description for this Operating modes for the circulation pump There are two ways to operate the circulation pump Either through automatic detection of the operating times self l...

Страница 32: ...n pump is installed and the Self learning function is deactivated This timer displays the set times of the current day to operate the circulation pump These time windows are displayed as a black bar i...

Страница 33: ...w screen on the Stand by times timer A screen opens Fig 10 1 Overview of hot water charging times Set the hot water temperature as low as possible to prevent limescale build up You can find further de...

Страница 34: ...blocks with timers To set the charging times tap the timer in the overview An overview opens Fig 10 3 Overview Set the individual time windows and temperatures by tapping the lines Time slot 1 Time s...

Страница 35: ...ETAtouch controller Up to software version X 35 X 35 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...

Страница 36: ...rning function often referred to as auto loop or manual specification of the operating times set time window Self learning function This is already set at the factory parameter Self learning to Yes Th...

Страница 37: ...the Stand by times Daily plan button An overview screen opens Fig 10 7 Overview 1 Set time windows standby times 2 Select day of the week 3 Add another time window 4 Graphical representation of the ti...

Страница 38: ...ion block with the Settings button Fig 10 8 Open the settings 2 Access the charge times of a particular day with the Charging times Daily plan button Fig 10 9 Access charging times 3 An overview scree...

Страница 39: ...perature Fig 10 12 Reduced operation temperature settings In this example the desired hot water temperature outside the charging times is 30 C When loading times and temperatures of a day of the week...

Страница 40: ...t water can briefly be hotter than the target temperature set Explanation of the Emergency operation only with buffer pump function Emergency operation of the fresh water module can be activated with...

Страница 41: ...at the hot water pipe Then enter this time in parameter Circulation runtime During this time measurement no hot water may be tapped e g by sink shower because otherwise an incorrect time is measured E...

Страница 42: ...42 www eta co at Simplified electrical connection overview 11 Simplified electrical connection overview...

Страница 43: ...Simplified electrical connection overview 43 Frischwassermodul 93994 1 Frischwassermodul EM C S101 S103 S100 S602 S603 S604 S600 N L L N...

Страница 44: ...www eta co at www eta co at downloads DOWNLOAD...

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