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738.955 | 10.40

Inhalt

About

these

instructions

.......... 3

1.1 Applicability ................................. 3
1.

Users ............................................ 3

1.3 Description of symbols ................ 4

Safety

........................................ 5

.1 Proper usage ............................... 5

Improper usage ........................... 5

.3 Dangers during assembly /

commissioning .................................6

.4 Detecting faults ........................... 7

.5 Exclusion of liability ..................... 7

Description

................................ 9

3.1 Controller in the solar circuit ....... 9
3.

Casing overview ......................... 10

Installation

............................. 11

4.1 Opening / closing the casing ...... 11
4.

Installation ................................. 1

4.3 Electrical connection .................. 13

Display

overview

..................... 17

Commissioning

...................... 18

Description

the

controller

functions

................................. 20

7.1 Switch-on / switch-off

temperature difference ..............

Maximum storage tank
temperature ..............................

7.3 Maximum collector temperature .

7.4 Tube collector function ..............

7.5 Anti-freeze function ...................

7.6 Holiday function ........................

7.7 Flow test service function ..........

7.8 Speed control ............................

Operation

................................ 26

8.1 Setting the controller (main menu)

Setting the controller (settings

menu) ........................................ 31

Maintenance

........................... 38

9.1 Causes of problems ................... 38
9.

Testing the temperature sensor .... 4

Dismantling

and

disposal

....... 43

Legal

guarantee

..................... 44

Technical

data

......................... 46

Содержание TR A301

Страница 1: ...rence controller 3 inputs 1 PWM control signal for an ECM pump 738 955 Z01 10 40 Subject to change due to technical improvements EN These operating instructions are part of the product Read the instru...

Страница 2: ...al connection 13 5 Display overview 17 6 Commissioning 18 7 Description of the controller functions 20 7 1 Switch on switch off temperature difference 20 7 2 Maximum storage tank temperature 20 7 3 Ma...

Страница 3: ...e and dismantling of the controller may only be per formed by trained professional personnel Before commissioning the controller must be professionally assembled and installed by professional personne...

Страница 4: ...of occurrence Consequences resulting from non compliance DANGER Imminent threat of danger Death serious bodily injury WARNING Possible threat of danger Death serious bodily injury CAUTION Possible th...

Страница 5: ...pendently installed electronic temperature controller for on surface installa tion The controller may only be used for controlling solar thermal systems within the permissible ambient condi tions see...

Страница 6: ...itions inappropriate power supply and connecting prohibited devices or faulty devices and incorrect assembly or installation Therefore all safety regulations apply when working on the mains supply Onl...

Страница 7: ...lay regularly In case of faults isolate the cause see section 9 As soon as it becomes evident that safe operation is no longer possible e g visible damage discon nect the device from the mains supply...

Страница 8: ...n 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 The manufacturer reserves...

Страница 9: ...ECM pump in a solar thermal system see section 7 Description of the controller functions 3 1 2 The structure of the solar circuit Temperature difference controller Storage tank ECM pump Temperature se...

Страница 10: ...of the storage tank and pumps it to the collector The heat transfer fluid in the collector is heated by the sun and flows back to the storage tank The heat transfer fluid heats the domestic water via...

Страница 11: ...e casing is held in place by two retaining pegs on the upper edge of the bottom half of the cas ing and fastened with a screw 4 1 1 Opening the casing Loosen the screw and remove the upper casing in a...

Страница 12: ...e to the casing when drill ing Do not use the casing as a drilling template Choose a suitable mounting location Drill the upper fastening hole Screw in the screw Remove the upper casing Hang the casin...

Страница 13: ...a tions 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...

Страница 14: ...bles to the casing using the strain relief clamps provided Cut the left and right plastic flaps using an appropriate tool and break them out of the casing 4 3 2 Connecting the cables If a protective c...

Страница 15: ...or contacts is not important Do not lay sensor cables close to 230 volt or 400 volt cables minimum separation 100 mm If inductive effects are expected e g from heavy current cables overhead train cabl...

Страница 16: ...y f o r t h e E C M p u m p 2 3 0 V A T T E N T I O N V o l t a g e a l w a y s p r e s e n t T e m p e r a t u r e s e n s o r 2 l o w e r a r e a o f s t o r a g e t a n k 4 3 4 Actuating the conne...

Страница 17: ...display of min max temperature values 6 Tube collector function 7 Setting the temperature unit C F 8 Speed control 9 Holiday function see page 35 10 Anti freeze function see page 34 11 Symbols for pu...

Страница 18: ...t the mains supply To switch on the pump set the operating switch to the upper position on The display is lit with a red background on appears in the display After approx 3 sec onds on flashes in alte...

Страница 19: ...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 middl...

Страница 20: ...ts prohibit the pump from operating the PWM control signal for the pump appears at out put C The display shows this message The pump symbol rotates If the temperature difference falls below 4 K consta...

Страница 21: ...ods of high solar irradiance the tempera ture T1 of the heat transfer fluid can exceed 130 C The heat transfer fluid evaporates In this case the pump is stopped for protection purposes until the tempe...

Страница 22: ...r tem perature T1 falls below 5 C The heat transfer fluid is then pumped through the collector to prevent the system from freezing If the collector reaches a tem perature of 7 C the pump is switched o...

Страница 23: ...letely heated storage tank subjects the solar energy system to a higher thermal load If the holiday function is activated the storage tank is cooled as follows If the storage tank temperature rises to...

Страница 24: ...he flow test service function Safety limits maximum collector temperature maxi mum storage tank temperature are not taken into account while the service function is active 7 8 Speed control The contro...

Страница 25: ...stinc tion between the differential temperature control and absolute temperature control Differential temperature control diF The control system attempts to maintain a constant temperature difference...

Страница 26: ...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 auto matic operation 8 1 Setting the controller main menu The...

Страница 27: ...rent temperature If connected Grundfos Direct SensorsTM VFS 1 12 with current flow rate End of display Reset or automatically after 1 min Operating hours are set to 0 88 T2 8 0 Operating hours Display...

Страница 28: ...the Grundfos Direct SensorsTM VFS 1 12 are skipped The temperature Grundfos Direct SensorsTM VFS 1 12 is displayed in degrees Celsius without a sensor symbol and with a blinking solar circuit symbol...

Страница 29: ...ttings press or button 8 1 5 Displaying max flow rate only when a Grundfos Direct SensorsTM VFS 1 12 is connected Flow rate is selected Press the SET button briefly The max flow rate is shown on the d...

Страница 30: ...ct the operating hours of the pump The operating hours of the pump appear on the display 8 1 8 Deleting the operating hours of the pump The operating hours of the pump are selected Press the SET butto...

Страница 31: ...sec SET Speed control DSection 8 2 8 2 sec SET Main menu 2 sec SET 2 sec SET Tube collector function D Section 8 2 4 T1 T1 SET SET or 2 sec SET SET 2 sec F C C C C 60 F C C C C 60 F C C C C 60 F C C...

Страница 32: ...ings menu is open Temperature unit C or F flashes Press the SET button for approx 2 seconds to toggle between C and F To exit the settings menu press the button again until the main menu appears 8 2 4...

Страница 33: ...R Risk of scalding due to storage tank temperature of over 60 C Install a thermostatic mixer in the hot water pipe and set to maximum 60 C The settings menu is open The Symbols for maximum storage tan...

Страница 34: ...riod of time only operate the system with anti freeze heat transfer fluid for solar thermal systems For further information see section 7 5 NOTE Incorrectly setting the controller can compromise the e...

Страница 35: ...8 Activating the speed control The settings menu is open The speed control symbol flashes Press the SET button for approx 2 seconds to tog gle between oFF and on Depending on the oFF or on setting th...

Страница 36: ...tting options are available The display shows the setting diF To exit the settings menu press the button The main menu appears The display shows the setting AbS Press the button to set the temperature...

Страница 37: ...Press the and buttons simultaneously for 2 seconds on and the current flow rate in l min are displayed alternately Ending the flow test service function Briefly press the or buttons or the controller...

Страница 38: ...n covers the most common problems encountered with the controller Only send in the controller with a precise fault description if none of the following faults are present 9 1 Causes of problems WARNIN...

Страница 39: ...connected or interrupted Have professional person nel check the cables The pump symbol does not rotate max in the tank symbol blinks Storage tank full The pump symbol does not rotate Symbol for evapo...

Страница 40: ...the case of a short circuit in the Grundfos Direct SensorsTM VFS 1 12 T or Q Interruption symbol and warning sign appear Secondary symptoms Possible cause remedy The pump symbol does not rotate Displa...

Страница 41: ...torage tank was recorded The following causes are possible The pump is faulty or not correctly connected The isolating valve in the solar circuit is closed Air is in the solar circuit Since a standard...

Страница 42: ...sing The temperature is recorded by type Pt1000 resistance sensors The resistance value of the sensor changes depending on the temperature A potentially defective sensor can be checked using an ohmmet...

Страница 43: ...90 100 110 120 130 140 Resistance 1347 1385 1423 1461 1498 1536 Temperature C 150 160 170 180 Resistance 1573 1611 1648 1685 10 Dismantling and disposal DANGER Risk of death by electrocution Disconnec...

Страница 44: ...cessive loading use of improper equipment faulty construction work unsuit able construction location or improper operation or use Legal guarantee claims shall only be accepted if notification of the f...

Страница 45: ...y taking the interests of the end cus tomer into consideration the contract is cancelled Any further claims against the seller based on this guarantee obligation in particular claims for damages due t...

Страница 46: ...ow rate and temperature Output R1 Triac switched output for permanently supplying power to the ECM pump C PWM control signal for pump speed 8 mA 5 V 250 Hz Characteristic curve 0 PWM pump off 100 PWM...

Страница 47: ...47 738 955 10 40 EN Casing recyclable 3 piece plastic casing Dimensions L x W x H mm 137 x 134 x 38 Temperature sensors Pt1000 silicone cable 1 5 m measuring range up to 180 C Fuse 1 6 AT 3 9 A s...

Страница 48: ...738955...

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