EAST COAST tr 0301 Operating Instructions And Installation Manual
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EAST COAST tr 0301 Operating Instructions And Installation Manual

3 inputs, 1 output
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SOLARTHERMIE - SOLAR THERMAL - SOLAR TÉRMICO - SOLAIRE THERMIQUE
Operating instructions
Operating instructions
Temperature differential controller
3 inputs, 1 output
These operating instructions are part of the product.
Read these operating instructions carefully before use,
keep them over the entire lifetime of the product,
and pass them on to any future owner or user of this product.
EN
709.75 | Z0 | 07.50 | Subject to change due to technical improvements!

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  • Page 1 SOLARTHERMIE - SOLAR THERMAL - SOLAR TÉRMICO - SOLAIRE THERMIQUE Operating instructions Operating instructions Temperature differential controller 3 inputs, 1 output These operating instructions are part of the product.  Read these operating instructions carefully before use,  keep them over the entire lifetime of the product, ...

  • Page 2: Table Of Contents

    Contents 6 Commissioning ......19 1 About this manual ....... 3 1.1 Applicability ........3 7 Description of controller 1. Users ..........3 functions ........20 1.3 Description of symbols ....4 7.1 Automatic storage tank charging ..0 7. Maximum storage tank 2 Safety ..........5 temperature ........1 .1 Proper usage ........5 7.3 Maximum collector temperature ...1 . Improper usage ........5 7.4 Tube collector function ....1...

  • Page 3: About This Manual

    1 About this manual 1.1 Applicability This manual describes the installation, commissioning, operation, maintenance and dismantling of the tem- perature differential controller for solar thermal energy systems. When installing the remaining components, e.g. solar collectors, pump assemblies, storage units, pumps and switching valves, be sure to observe the appropriate installation instructions provided by each manufacturer.

  • Page 4: Description Of Symbols

    and alteration of parameters or functions, consult pro- fessional personnel. 1.3 Description of symbols 1.3.1 The structure of the warning notices SIGNAL WORD Type, source and consequences of the danger! Measures for avoiding danger.  1.3.2 Danger levels in warning notices Danger level Likelihoodof Consequences occurrence resulting from non- compliance Imminent threat Death, serious bodily DANGER of danger injury Possible threat of Death, serious bodily WARNING danger...

  • Page 5: Safety

    1.3.4 Other symbols and markings Symbol Meaning Precondition for action ✓ Call to action  Result of action  • List Emphasis on is- Emphasis on issue at hand sue at hand 2 Safety 2.1 Proper usage The temperature differential controller (called control- ler in the following) may only be used for controlling solar thermal systems within the permissible ambient conditions (see chapter 1).

  • Page 6: Dangers During Installation And Commissioning

    2.3 Dangers during installation and commis- sioning The following dangers exist during installation / com- missioning of the controller and during operation (in case of installation errors): • Risk of death by electrocution • Risk of fire due to short-circuit • Damage to any of the constructional fire safety measures present in the building due to incorrectly installed cables •...

  • Page 7: Detecting Faults

    Before connecting the device, make sure that the  power supply matches the specifications on the type plate. Make sure that all devices which are connected to  the controller conform to the technical data of the controller. Secure the device against unintentional start-up. ...
  • Page 8 for loss, damage or costs which result from or are in any way related to incorrect installation, incorrect execution of installation work, improper operation and incorrect usage and maintenance. Similarly, we assume no responsibility for patent right or other right infringements of third parties caused by usage of this controller.

  • Page 9: Description

    3 Description 3.1 Controller in the solar circuit 3.1.1 The purpose of the controller The controller controls the solar thermal system 3.1.2 The structure of the solar circuit Temperature sensor 1 (collector sensor) Temperature differential controller Temperature sensor 3 (upper area of storage tank) Storage tank Collector Solar circuit  Pump  Temperature sensor 2 (lower area of storage tank) 709.75 | 07.50...
  • Page 10 3.1.3 The function of the solar circuit The controller constantly compares the temperatures between the collector (T1) and the lower area of the storage tank (T). Once the sun heats the collector and there is a temperature difference of 8 K between the collector and the storage tank, the pump is switched The pump extracts the heat transfer fluid from the lower cooler area of the storage tank and pumps it to the collector.

  • Page 11: Casing Overview

    3.2 Casing overview Display graphic display, animated, for controller operation and system settings Operating switch The following modes of Operating buttons operation can be selected:- Arrow up for commissioning SET button and testing for function- Arrow down Automatic for automatic operation - Off to switch-off the pumps ...

  • Page 12: Installation

    4 Installation 4.1 Opening/closing the casing DANGER Risk of death by electrocution! Remove the controller from the power supply before  opening the casing. Make sure that the power supply cannot be unin-  tentionally switched on. Latches Do not damage the casing.  Only switch the power supply back on after the cas- ...

  • Page 13: Mounting

    4.2 Mounting WARNING Risk of electrical shock and fire if mounted in a damp environment! Only assemble the controller in an area where the  degree of protection is sufficient. 4.2.1 Mounting the controller CAUTION Risk of injury and damage to the casing when drill- ing! Do not use the casing as a drilling template. ...

  • Page 14: Electrical Connection

    4.3 Electrical connection WARNING Risk of death by electrocution! Remove the controller from the power supply before  opening the casing. Observe all guidelines and regulations of the local  electricity supplier. NOTE The device is to be connected to the grid by means of a plug with grounding contact, or in the case of a fixed electrical installation via a disconnection device for complete disconnection in accordance with the installation guidelines...
  • Page 15 Feeding the cable through the rear of the cas- ing (diagram 1): WARNING Risk of electrical shock and fire due to cables com- ing loose! Install an external strain relief for the cables.  Remove the plastic flaps from the rear side of   the casing using an appropriate tool. Feeding the cable through the lower side of Diagram 1: Cable feed from the rear the casing (diagram 2): WARNING Risk of electrical shock and fire due to cables com- ing loose!
  • Page 16 Make sure that the grounding contact is also connected to the controller's mains supply side. Each terminal may only be connected to a single connecting wire (max .5 mm The terminals are suitable for connection with- out sleeves; stranded wires are to be twisted (1 twist per 0 mm).
  • Page 17 4.3.3 Terminal plan 4.3.4 Actuating the connecting terminals NOTE The connecting terminal may only be actuated with an appropriate tool. An unsuitable tool or too much mechanical pressure can damage or even destroy the connecting terminal. 709.75 | 07.50...

  • Page 18: Display Overview

    5 Display overview ° °C °F   Temperature sensor symbols Solar circuit symbols Display for temperature values Displays message "Maximum and fault symbols, e.g. short storage tank temperature has circuit, interruption (see page been reached" 30) or SYS = system error (see Warning display if faults occur, page 39) e.g.

  • Page 19: Commissioning

    6 Commissioning 6.1 Testing the pump CAUTION Damage to pump caused by dry operation! Make sure that the solar circuit is filled with heat  transfer fluid. The controller casing is closed ✓ All connections are properly made. ✓ The solar energy system is filled. ✓ Connect the mains supply. ...

  • Page 20: Description Of Controller Functions

    CAUTION The incorrect operating mode may cause the sys- tem to shut down or impair proper functioning! After testing the pump, always set the operating  switch to automatic operation. To set the controller to automatic operation, move  the operating switch to the middle position (Auto). "Aut"...

  • Page 21: Maximum Storage Tank Temperature

    7.2 Maximum storage tank temperature • If the lower area of the storage tank (T) reaches the set maximum storage tank temperature (factory setting 60 °C), charging is stopped. A tem- perature of 3 K below the maximum storage tank temperature must first be reached before charging can be resumed.

  • Page 22: Holiday Function

    these cases, the solar circuit must be briefly activated at regular intervals to transmit the actual heat from the collector pipe to the sensor (T1). If the tube col- lector function is activated, the controller automati- cally switches the pump on every 30 minutes for 30 seconds.

  • Page 23: Anti-Freeze Function

    The following display appears: ° • The holiday symbol is displayed 7.6 Anti-freeze function °C °F If the anti-freeze function is activated, the controller   switches the pump on as soon as the collector tem- perature T1 falls below +5 °C. The heat transfer fluid is then pumped through the collector in an attempt to prevented the system from freezing.

  • Page 24: Operation

    8 Operation CAUTION The incorrect operating mode may cause the sys- tem to shut down or impair proper functioning! Make sure that the operating switch is set to automatic  operation. 8.1 Reading temperature values NOTE The temperature in the above storage tank is only dis- played if the temperature sensor T3 (not included in delivery) is also connected.
  • Page 25 To exit the Settings menu, press the button again   until the menu is no longer displayed. 8.2.2 Setting the storage tank maximum tem- perature CAUTION Risk of scalding by excessive domestic water tem- perature! Set the storage tank max. temperature no higher  than 60°C. Install a thermostatic mixer in the hot water pipe ...
  • Page 26 8.2.4 Activating the tube collector function NOTE Incorrectly setting the controller can compromise the efficiency of the solar energy system. Therefore, only activate the tube collector function if the construction of the collector does not allow its temperature to be recorded immediately and/or accurately (in some cases there are no immersion sensors;...
  • Page 27 The menu is open ° ✓ Press the button until the holiday symbol   flashes. °C Press the button for approx.  seconds until the °F   small tick on the holiday symbol appears/goes out.  8.2.6 Activating/deactivating the anti-freeze function CAUTION The solar energy system can freeze despite the acti-...
  • Page 28 The menu is open ° ✓ Press the button until the anti-freeze symbol   flashes. °C Press the button for approx.  seconds until the °F   small tick on the anti-freeze symbol appears/goes  out. 709.75 | 07.50...

  • Page 29: Maintenance

    9 Maintenance The controller was conceived for years of continuous trouble-free operation. Nevertheless, faults may occur. Maintenance may only be performed by professional personnel. In most cases, however, the fault does not lie with the controller, but rather with the peripheral components. The following description covers the most common problems encountered with the controller.
  • Page 30 The pump, which is connected to the controller, is not running, although its switch-on conditions have been fulfilled. Secondary symp- Possible cause / remedy toms The pump symbol The pump connecting cable rotates in the dis- is not connected, interrupted play. or the fuse in the controller is burned out.
  • Page 31 Short-circuit symbol and warning display appear. ° Secondary symptoms Possible cause / remedy • The pump symbol Temperature sensor or its sup- °C °F does not rotate ply cable short-circuited   • Display background Have professional per-  alternately flashes sonnel check the supply red and yellow cables of the tempera- ture sensors and that...
  • Page 32 If T3 is interrupted no message appears ° SYS flashes in the controller display Possible cause / remedy °C °F SYS means there is a system error. This means that   despite the pump running, a temperature difference exceeding 80 K between the collector and the stor- age tank was recorded.

  • Page 33: Testing The Temperature Sensors

    9.2 Testing the temperature sensors 9.2.1 Safety Only professional personnel may test the temperature sensors. 9.2.2 Testing the resistance values DANGER Risk of death by electrocution! Remove the controller from the power supply before  opening the casing. The temperature is recorded by resistance sensors. These are PT1000 temperature sensors. Depending on the temperature, the resistance value also changes.
  • Page 34 Temperature sensor resistance values Temperature [°C] Resistance [Ω] 1000 1039 1078 Temperature [°C] Resistance [Ω] 1117 1155 1194 13 171 1309 Temperature [°C] Resistance [Ω] 1347 1385 143 1461 1498 1536 Temperature [°C] Resistance [Ω] 1573 1611 1648 1685 709.75 | 07.50...

  • Page 35: Dismantling And Disposal

    10 Dismantling and disposal DANGER Risk of death by electrocution! Remove the controller from the power supply before  dismantling it. To dismantle the controller, follow the assembly  instructions in the reverse order. Dispose of the controller in accordance with the  regional regulations. 709.75 | 07.50...

  • Page 36: Legal Guarantee

    11 Legal guarantee In accordance with German statutory regulations, there is a -year legal guarantee on this product for the customer. The seller will remove all manufacturing and material faults that occur in the product during the guaran- tee period and affect the correct functioning of the product.

  • Page 37: Technical Data

    not sufficient taking the interests of the end customer into consideration, the contract is cancelled. Any further claims against the seller based on this guarantee obligation, in particular claims for damages due to lost profit, loss-of-use or indirect damages are excluded, unless liability is obligatory by law.
  • Page 38 709752...

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Temperature differential controller

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