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NT-10VA circuit board

Electrical connections

6.4

NT-10VA circuit board

Terminal

Function

Minimum
cross-sec-
tion

Standard assignment

F2

Fuse 230 V, T 6,3 A

X1

Supply 230 V

3 x 1.5 mm²

Mains power input

X2

230 V input

Mains switch

X3

Supply extension 24 V

to circuit board [GM-C]: terminal [S512A]

X4

Supply extension 230 V

to circuit board [GM-C]: terminal [S1]

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Содержание 939058-001

Страница 1: ...2021 02 22 EN 0000000432 V 004 X 51 0 939058 001 Heat transfer station 15 75 kW 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: ...tion 25 6 3 Circuit board GM C3 26 6 4 NT 10VA circuit board 28 6 5 Heat flow meter 29 7 Commissioning 30 7 1 Filling the heating system 30 7 2 Setting the flow rate 31 7 2 1 Primary side characterist...

Страница 4: ...structions and information Layout of safety instructions SIGNAL WORD Type and source of danger Possible effects Measures for avoiding the danger Types of safety instruction CAUTION On non compliance w...

Страница 5: ...roper installation according to the corresponding installation instructions and the relevant rules and safety regulations If you as customer have installed the heating system partly or entirely withou...

Страница 6: ...tive 2014 35 EU Directive relating to electrical equipment designed for use within certain voltage limits Low Voltage Directive 2011 65 EU Directive on the restriction of the use of certain hazardous...

Страница 7: ...valve with pressure independent flow limiter 6 Strainer for secondary side and connection for discharge 7 Actuator for primary valve 8 Strainer for primary side 9 Bleed screw for primary side 10 Safet...

Страница 8: ...s for dimensioning Example Primary side Secondary side Network type Flow Return Heating system Flow Return 1 District heating network 90 C 42 C Radiators with or without buffer stor age tank 65 C 40 C...

Страница 9: ...onnection to an existing ETAtouch control system A stand alone solution with a separate ETAtouch control panel is also possible Power is supplied via a 230 V Schuko socket The return temperature can a...

Страница 10: ...tom Fig 4 1 Front cover Fig 4 2 Insulation Fit the wall mount with suitable screws and hang the heat transfer station in the mount Note the dimensions of the heat transfer station and the required cle...

Страница 11: ...can be mounted properly Fig 4 6 Distance to the wall Mounting the connections Mount the connections for the primary circuit on the heat transfer station The return is equipped with an emptying device...

Страница 12: ...led for the secondary circuit at the factory The outlet is already guided to the bottom of the heat transfer station in a pipe Connect the safety valve outlet to this pipe Fig 4 11 Safety valve outlet...

Страница 13: ...ection for membrane expansion vessel For frost protection in the secondary circuit guide the safety valve outlet into a canister DANGER Safety valve outlet The safety valve outlet must be directed to...

Страница 14: ...orrect for the measuring unit Fig 4 15 Measuring unit 5 The temperature sensors of the heat meter are colour coded flow red return blue Insert them into the immersion sleeves at the flow red and retur...

Страница 15: ...ration with the assistant is provided in the document Control extension configuration The configuration of the individual examples is described subsequently Software version X 44 0 or later The config...

Страница 16: ...n Settings Hydraulic variants Consumer with its own pump Options Module is a consumer within an ETA system Only select this option if the heat transfer module is a consumer in an ETA heating system Th...

Страница 17: ...3 point control 230 V Room sensor Digital GM C 1 HWT Hot water tank Settings Charging pump Standard pump Flow mixing valve no Circulation pump No GM C 1 Sys System Settings Outside temperature sensor...

Страница 18: ...control must be established Description GM C 1 Heat transfer station HOM Secondary flow S500 T3 Primary valve S6 Primary return S500 T5 System Sys Outside temperature sensor S501 T7 Hot water tank HW...

Страница 19: ...Configuration Example 1 19...

Страница 20: ...hin an ETA system Only select this option if the heat transfer module is a consumer in an ETA heating system This option may not be selected for stand alone operation e g as district heat ing station...

Страница 21: ...er No GM C 1 Sys System Settings Outside temperature sensor via board input Show external malfunction message on the screen No Output all fault messages No Circuit board Function blocks Description Ci...

Страница 22: ...to the second sensor Sensor 2 Thus greater thermal energy is available in the buffer for the fresh water module Levels in buffer Sensor assignment in buffer from to Boiler buffer producer Buffer top...

Страница 23: ...blished Description GM C 1 Heat transfer station HOM Secondary flow S500 T3 Primary valve S6 Primary return S500 T5 System Sys Outside temperature sensor S501 T7 Buffer storage tank BufferFlex Sensor...

Страница 24: ...ury and property damage Before beginning any work isolate the system completely from all power sources ensure that it cannot be switched back on and verify that it is safely isolated from the power su...

Страница 25: ...n CAN bus connection to the ETAtouch control system The following example shows the CAN bus connection from the heat transfer station to the boiler s ETAtouch control This example applies accordingly...

Страница 26: ...Pump S4 230 V output 3 x 1 mm Pump S5 230 V output 3 x 1 mm Pump S6 230 V output 4 x 1 mm Actuator for primary valve S7 230 V output 3 x 1 mm Pump S8 230 V output 4 x 1 mm Mixing valve S9 Supply exte...

Страница 27: ...Speed for pump on terminal S3 S506 PWM output analogue output 2 x 0 5 mm Speed for pump on terminal S4 S507 PWM output analogue output 2 x 0 5 mm Speed for pump on terminal S5 S508A CAN bus 2 x 2 x 0...

Страница 28: ...oard Terminal Function Minimum cross sec tion Standard assignment F2 Fuse 230 V T 6 3 A X1 Supply 230 V 3 x 1 5 mm Mains power input X2 230 V input Mains switch X3 Supply extension 24 V to circuit boa...

Страница 29: ...heat meter electrically Connect the heat meter to the board GM C See the following graphic The M Bus circuit board shown is optionally available and only required when the heat meter is to be evaluate...

Страница 30: ...e requirements of NORM H 5195 1 apply as minimum requirements for the heating water If stricter country specific regulations exist they are to be heeded Water glycol mixtures with a glycol ratio of mi...

Страница 31: ...ting 18 kW 20 K spread At 18 kW power and 30 K spread a primary side flow rate of approx 0 52 m h results from the performance chart The temperature difference of the heat exchanger of 5 K is already...

Страница 32: ...d for heat transfer station type 15 or type 30 The restrictor must therefore be opened about 3 8 rotations from the closed position Fig 7 1 Adjusting diagram Adapting the flow rate with the restrictor...

Страница 33: ...for its design 1 The radiators account for 70 of the heat output with 60 flow and 40 return 40 C x 0 7 28 C The underfloor heating accounts for 30 of heat output when interpreted with 35 28 C 28 C x 0...

Страница 34: ...am see graphic Fig 7 1 Adjusting diagram that for 0 46 m h the restrictor for heat transfer station type 15 must be opened by 3 5 rotations 7 3 Concluding activities Refitting the insulation Refit the...

Страница 35: ...This applies accordingly to the secondary side 1 Close the ball valves for flow and return of the primary and secondary side in order to limit wa ter leakage 2 Carefully remove the front panel 3 Remo...

Страница 36: ...at Rectifying problems 7 Bleeding the corresponding circuit is required after cleaning There is a bleed screw on the top for bleeding the primary side Fig 8 4 Bleeding the primary side 8 Reattach the...

Страница 37: ...boiler and 1000 litre total water volume 1 For the module the ratio of water content to output is less than 0 3 l kW Table 2 2 The maximum output of the module is 45 kW With a total heating water vol...

Страница 38: ...nd from the consumers The secondary pump starts after the set delay has expired and supplies the consumers with heat If there is no demand the secondary pump is shut down and the primary valve closes...

Страница 39: ...s be carried out separately and successively on the ETAtouch control panel of the boiler itself and then on all further ETAtouch control panels 1 Plug the USB memory stick with the files for the softw...

Страница 40: ...www eta co at www eta co at downloads DOWNLOAD...

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