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[Solar] function block

ETAtouch controller

5.8.5

Solar heating system with external 
heat exchanger and stratified 
charging valve

Solar heating system with external heat exchanger
and stratified charging valve

This variation of solar heating system also aims to
produce a sufficiently high temperature in the upper
area of the buffer, so the boiler does not have to start
for hot water charging.

Fig. 5-79: Solar heating system with external heat exchanger 

and stratified charging valve

The collector pump starts as soon as the collector is
warmer than the target temperature in the upper buffer
area [Buffer target solar].

The control principle is identical to that of a buffer with
two internal coils. The conditions for solar charging into
the upper buffer coil are also the same. They are
described in chapter 

5.8.3 "Solar heating system for

buffer with 2 internal coils"

.

The speed control of the secondary pump is identical
to that of a solar heating system with an external heat
exchanger, see chapter 

Fig. 5-78: "Regulation

principle"

.

The only difference is the switching of solar
charging from the lower buffer coil to the upper. If

the conditions for solar charging into the upper coil are
not met, the lower coil will be charged first. If the
secondary feed temperature rises enough that the
temperature in the upper buffer area [Buffer top Solar]
is exceeded, solar charging is immediately switched to
the upper coil. There is no minimum time for solar
charging. Once the secondary feed temperature drops
below the temperature [Buffer top Solar], the lower coil
is again charged.

The secondary flow temperature rises when the
collector temperature increases or the speed of

the secondary pump decreases.

5.8.6

Text menu - Adjustable parameters

Adjustable parameters

Detailed descriptions of the parameters are provided
below.

Explanation of [Collector min]

This parameter sets the minimum temperature for
starting the solar pump. The solar pump can only be
started once the solar panel has exceeded this tem-
perature.

Do not set this temperature too high, to ensure
that it is possible for heat to supplied to pre-heat

the tank even when there is little sunlight. The optimal
range is between 30 °C and 50 °C.

Explanation of [Target collector diff.]

This parameter sets the desired temperature
difference between the solar panel and the connected
tank (buffer or hot water tank). This temperature
difference is controlled by adjusting the speed of the
solar pump.

If the buffer is being charged by the solar heating
system, the temperature of the solar panel

[Collector] is compared with the buffer temperature
[Buffer bottom Solar]. If the hot water tank is being
charged, the [Hot water tank bottom] temperature is
compared.

A 

high temperature difference

 results in a low

speed of the solar pump. This way, a smaller

quantity of water is conveyed through the solar panel.
The water remains in the solar panel for a longer time,
and therefore produces a higher working temperature
in the panel. Consequently, a higher hot water
temperature is achieved, but there are also more
losses from the solar panel.

A 

low temperature difference

 results in a high

speed of the solar pump. A larger quantity of

water is therefore conveyed through the solar panel.
The water remains in the solar panel for a short time,
and so also becomes less hot. The working
temperature of the solar panel is therefore lower, but
there are fewer losses via the solar panel.

State

Collector

Collector min

Collector pump

Target collector diff.

Содержание 13180LP-T

Страница 1: ...2018 05 24 EN 0000000313 V 005 3 43 0 3308 93222 001 Pellet boiler 180 220 kW Operation ...

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: ... BufferFlex function block 32 5 3 1 Setting the buffer charging times 33 5 3 2 Setting warnings 34 5 3 3 Buffer with solar heating system 34 5 3 4 Buffer as a combination tank 35 5 3 5 Text menu Adjustable parameters 36 5 4 Buffer function block 40 5 4 1 Setting the buffer charging times 41 5 4 2 Buffer with solar heating system 41 5 4 3 Buffer as a combination tank 42 5 4 4 Text menu Adjustable p...

Страница 4: ...ng the charging times 71 5 9 2 Text menu Adjustable parameters 71 5 10 External heat demand function block 72 5 10 1 Setting the charging times 73 5 10 2 Text menu Adjustable parameters 73 5 11 Heating pipeline function block 74 5 12 Pellet store function block 75 5 13 Pellet store with switch unit function block 76 5 13 1 Text menu Adjustable parameters 76 6 Rectifying problems 77 7 Information o...

Страница 5: ...bles you to operate your ETA boiler remotely via your own network VNC Viewer or the internet www meinETA at using a PC smartphone or tablet as though you were standing right in front of the ETAtouch control system of your ETA boiler A LAN cable is required for the connection from the ETAtouch control system to the internet modem Details for the remote control can be found in the manual Communicati...

Страница 6: ...e intended heat transfer medium For special anti frost requirements up to 30 glycol may be added Softened water is required for the initial fill up of the heating system and for refilling after repairs Addition of hard water should be minimised to limit limescale build up in the boiler In order to protect the boiler from calcification the water hardness of the heating water must be taken into acco...

Страница 7: ...the relevant rules and safety regulations If you as customer have installed the heating system partly or entirely without relevant training and in particular without up to date 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 warranty guarantee and liabil...

Страница 8: ...nctionality 1 Combustion chamber door 2 Refractory lined combustion chamber 3 Tilting grate 4 Ash screw under tilting grate 5 Ash bin 6 Ash screw under the turbulators 7 Stoker screw 8 Rotary valve 9 Dosing screw 10 Pellet hopper 11 Fill level sensor ...

Страница 9: ...the grate onto the ash screw which lies below it Beneath the grate and the heat exchanger two ash screws convey the ash to a detachable ash bin In the refractory lined combustion chamber a hot and complete burnout occurs before the combustion gases in the heat exchanger transfer the heat to the heating water The movement of the turbulators cleans the heat exchangers automatically once a day The fl...

Страница 10: ...uishers are not required for heating systems in private residences In spite of this we recommend having one in the house Storage of ash The ash must be kept in non flammable containers with covers for cooling Never put hot ash into the waste bin Emergency stop switch for the boiler In Austria heating systems installed in boiler rooms must be equipped with an emergency stop switch The switch must b...

Страница 11: ...ting valve remove hand wheel 3 Strainer 4 Thermal emergency cooling valve 5 Visible outlet to sewer The outlet must have an easily visible flow path so mal functions can be recognised Direct the discharged water to the sewer via a siphon funnel or at least with a pipe into the ground so that nobody can be scalded if the valve is activated Even for cold water coming from a domestic well with its ow...

Страница 12: ... be routed in a straight line in the nominal diameter of the valve inlet DANGER Safety valve outlet The safety valve outlet must be directed to the ground in a pipe so nobody is endangered by hot water or steam The safety valve discharge vent pipe must have at least the same nominal diameter as the valve outlet have a consistent downhill gradient and be routed to a sewer connection The vent pipe m...

Страница 13: ...amber may not be steeper than 45 To remove this ash initiate boiler de ashing by pressing the De ash button Empty ash bins check seals The sight glass can be used to check the fill level of the ash bins without opening them Fig 4 1 Sight glass To remove the ash bins pull the lever on the side towards the ash bins to release them Remove the ash bins from the boiler Close the covers in the ash bin l...

Страница 14: ...r replace them if necessary Fig 4 5 Seal Attach the ash bins to the boiler Reattach the cover to the ash bins and secure with the fasteners Then re open the covers in the lids Fig 4 6 Covers Push the ash bins over the connections on the boiler and attach to the boiler with the lever Fig 4 7 Attach the ash bins to the boiler with the lever Switching on the boiler Switch the boiler back on with the ...

Страница 15: ...listed in the uppermost row on the screen The respective user interface is opened with a single tap of the finger Fig 5 1 ETAtouch control system function blocks 1 Currently selected function block 2 Other function blocks e g hot water tank heating circuit solar heating system 3 Scroll to other function blocks displayed if not all function blocks can be displayed simultaneously 4 This button opens...

Страница 16: ...found in chapter 5 1 5 Inputs and outputs Any hints errors or faults are displayed in the messages menu see chapter 5 1 4 Messages 5 1 1 User interface The user interface The user interface is always displayed by default If you are in a different view switch to the user view by tapping the symbol upper left and then selecting In the user interface you can set the most important and common settings...

Страница 17: ...by pressing the Save button Resetting to factory settings is done by pressing the Factory settings button To cancel and close the window tap the arrow on the left side of the screen Only modify parameters whose function you re familiar with Before making any changes read the relevant section of the user manual or configura tion manual or open the integrated help feature If you cannot find sufficie...

Страница 18: ...ttom of the screen Fig 5 9 Symbols when an error occurs Types of errors and their meaning Notification A notification does not interrupt operation and therefore no acknowledgement is required Notifi cations inform the user for example that pump anti blocking protection has been activated Warning A warning is displayed on failure of a function which is not absolutely essential for continued operati...

Страница 19: ...onents of the selected function block are displayed in the inputs and outputs menu e g pumps temperature sensors and mixers When authorization is given the terminal assignment can be changed Also manual mode for e g a pump or a mixer is possible Below is an example of the function block of the heating circuit To view the terminal assignment first select the heating circuit To access the inputs and...

Страница 20: ...System configuration menu To close the system settings simply tap the symbol again 5 1 6 2 Setting the language Change the language using the ETAtouch control system The language used can be changed using the ETAtouch control system For this open the system preferences and tap the Language symbol A settings window appears Fig 5 16 Setting the language Select the desired language Following this the...

Страница 21: ... name tap on the Change name symbol An on screen keyboard appears in order to enter the new name Fig 5 20 On screen keyboard Press the Save button to save To cancel close the window using the arrow on the left side 5 1 6 5 Switch between function blocks The principle of producers and consumers In the user interface the producer of the function block and if present also the consumer s are displayed...

Страница 22: ...h producers and consumers vary between the function blocks 5 1 6 6 Setting a time window Setting the charging and operation times In some function blocks the time window for charging the tank for example the buffer and hot water tank or the operating times for example for the heating circuit are set This time window must be created in the settings of the respective function block Subsequently the ...

Страница 23: ...e In each field use the arrow keys to set the time and temperature Fig 5 26 Setting time slot and temperature In this example the hot water is charged between 08 00 a m and 8 00 p m to 55 C 2 If an additional time window is necessary add it using the button Adjust as described above A maximum of 3 time windows can be set To delete an unnecessary time window press the button in the selected time wi...

Страница 24: ... the week to copy this is framed and then press the Copy selected day button Fig 5 29 Overview 3 Now select the days of the week for which the time window is to be copied In this example Saturday and Sunday Fig 5 30 Select days of the week Pressing the Mark all days button marks all days 4 Press the Save button to save The overview will be updated accordingly Close the window using the arrow on th...

Страница 25: ...oiler s control system via your home network with a free VNC Viewer To see how remote operation of your boiler works please visit www meinETA at Enter access data for the boiler remote control After receiving your login information after registering on www meinETA at enter it on the control panel in the meinETA Access menu This enables access to remote control of the boiler To enter the login info...

Страница 26: ... be performed on site This is to ensure that no changes can be remotely performed on your control system You can change the options at any time by pressing the remote control symbol at the bottom of the screen 5 1 8 Favourites The Favourites function With the Favourites function you can collect any parameter from the text menu and from other function blocks in groups so called Favourites You can f...

Страница 27: ...nk to its text menu For parameters Hot water tank on the right edge of the screen tap on the symbol Fig 5 38 Adding parameters In the settings window that opens tap on the Fa vourites button Fig 5 39 Settings window The overview of the favourite groups appears With the button choose any group to which you want to add parameters You can also select several groups Fig 5 40 Overview Other parameters ...

Страница 28: ...ble for Windows XP or Windows Vista For example Microsoft LifeCam Studio Logitech HD Pro Webcam C920 or SpeedLink Reflect LED Webcam A maximum line length of 40 m is possible when a USB 2 0 or later extension cable is used with signal amplification active Displaying a camera image 1 Connect the camera to a free USB port on the ETAtouch control panel 2 Open the system settings and change to the Cam...

Страница 29: ...ETAtouch controller Getting to know the control system 29 ...

Страница 30: ...operation is completed upon burnout The operating condition changes to Ember burnout and then back to standby The pellet bin on the boiler is automatically topped up as soon as the stock of pellets falls below a minimum limit The Fill up time buttons set twice daily times for complete refilling of the boiler pellet bin if pellets have been used Boiler de ashing takes place automatically within an ...

Страница 31: ... the boiler immediately independent of the suction time settings 5 2 2 Text menu Adjustable parameters Adjustable parameters Detailed descriptions of the parameters are provided below Explanation of Begin idle time WT cleaning and Idle time during WT cleaning The Idle time during WT cleaning parameter is used to select the duration of the idle time for heat exchanger de ashing The start time for t...

Страница 32: ...ble to set a daily time for charging the buffer time programme All of these settings can be found in the buffer s settings button under Starting after additional criteria Extra charge For example you can adjust the settings so that the buffer is charged daily from 9 30 am at the top to 65 C and only swiches off when 45 C is reached at the bottom Even if the time programme is active immediate charg...

Страница 33: ...ameters accordingly Fig 5 46 Overview 5 3 1 Setting the buffer charging times Open the overview of the charging times set The operating hours of the buffer can be adjusted in the settings button To adjust open the settings and then open the charging times of any given day with the Charging times Daily plan button An overview screen opens Fig 5 47 Overview 1 Set time window charging times 2 Select ...

Страница 34: ...and the different variations are described in chapter 5 8 Solar function block In the overview of the buffer the solar heating system appears as another producer for the buffer In the subsequent graphic the buffer is charged by the solar heating system at a flow temperature of 98 C Fig 5 49 Solar heating system on the buffer The Solar priority function enables the solar heating system to charge th...

Страница 35: ...k if the current temperature has dropped below Switch on diff ignoring the current time slot When active the button is highlighted in yellow 5 3 4 1 Setting the hot water charging times Opening charging times and temperature for hot water with a combination tank The charging times for the hot water and the set tem peratures can be adjusted in the settings button To adjust open the settings and the...

Страница 36: ...lled by the ETA control system A higher value is required if peaks in output have to be covered or very fast heat availability is needed Explanation of Buffer off This sets the shutdown temperature for the buffer charge through the boiler If the temperature sensor in the buffer has exceeded the shutdown temperature charging of the buffer by the boiler is stopped Settings Buffer min Buffer off Cons...

Страница 37: ...o the bottom section of the buffer to make use of the solar energy Explanation of Buffer max This configurable shutdown temperature sets a threshold for how much the buffer can be charged by the solar heating system to prevent the buffer from overheating If the allocated temperature sensor reaches the configured shutdown temperature the solar pump of the solar heating system is switched off Explan...

Страница 38: ...pens With a combination tank this value can be set to approximately 5 C to 8 C if the amount of hot water is insufficient 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 Circu...

Страница 39: ...ETAtouch controller BufferFlex function block 39 ...

Страница 40: ...t has been exceeded in the upper part of the buffer and the adjustable shutdown temperature Buffer bottom off is reached in the lower part The operating mode then changes to Charged If within the loading times there is no heat demand from the consumer the buffer is charged only to the adjustable minimum temperature Buffer top min The consumers connected to the buffer for example heating circuit or...

Страница 41: ...ndow 5 4 2 Buffer with solar heating system Buffer with solar heating system The control principles of the solar heating system and the different variations are described in chapter 5 8 Solar function block In the overview of the buffer the solar heating system appears as another producer for the buffer Fig 5 54 Solar heating system on the buffer 1 Currently the buffer is charged by the solar heat...

Страница 42: ... charging times The configurable Switch on diff parameter addition ally allows you to determine how far the hot water temperature can drop before the hot water tank again demands heat from the buffer see chapter 5 4 4 Text menu Adjustable parameters parameter Switch on diff Immediately charge hot water button This button causes the hot water to be charged to the highest set temperature of all time...

Страница 43: ...e week 3 Add another time window 4 Graphical representation of the time window setting 5 Overview of all time windows for the entire week 6 Delete time window 7 Adjustable hot water temperature within the time window 8 Period of the time window 9 Set back temperature of the hot water outside the time window Setting the time window and copying to other days of the week is described in chapter 5 1 6...

Страница 44: ...ed Explanation of Buffer bottom off This parameter ends charging of the buffer storage tank by the boiler As soon as the Buffer bottom temperature sensor in the buffer storage tank has exceeded the configured Buffer bottom off tempera ture charging of the buffer by the boiler is stopped The factory setting for this parameter is 40 C The value should be at least 5 10 C above the average return temp...

Страница 45: ...of Min out temp Solar prio This parameter sets the minimum value for the outside temperature so that one of the conditions for solar priority and stratified charging of the buffer storage tank is satisfied Explanation of Buffer bottom max Optional only with solar heating systems This switch off temperature can only be set when the solar heating system is charging the buffer This con figurable temp...

Страница 46: ...emand heat from the boiler unless this happens With a combination tank this value can be set to approximately 5 C to 8 C if the amount of hot water is insufficient 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 ...

Страница 47: ...ETAtouch controller Buffer function block 47 ...

Страница 48: ...ighest set temperature of all time slots and days of the week if the current temperature has dropped below Switch on diff ignoring the current time slot When active the button is highlighted in yellow Mode of operation In the settings menu button the time window for charging the hot water and the desired hot water temperature can be set See chapter 5 5 1 Setting the hot water charging times Within...

Страница 49: ...meters can be found in the function block settings button There the parameters are identified by the symbol and can be adjusted by tapping This saves you having to search through the text menu for these parameters Adjustable parameters Detailed descriptions of the parameters are provided below Explanation of Switch on diff This parameter regulates how far the current warm water temperature can fal...

Страница 50: ... Circulation pause Example Circulation runtime 3 minutes Circulation pause 10 minutes If the circulation pump has been started it is in operation for 3 minutes and then disabled for 10 minutes This means that it can only be requested again by the control system after 13 minutes You can determine the required running time of the circulation pump in the following way Start the circulation pump in th...

Страница 51: ...ETAtouch controller Hot water tank function block 51 ...

Страница 52: ...culation pump for hot water is installed the different operating modes for this pump are set in the same 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 learning function often referred to as auto loop or manual specification of the operating times s...

Страница 53: ...as parameter Circulation runtime 5 6 1 Setting the hot water charging times Open the overview screen of the set charging times and temperatures The standby times for the hot water and the set tem peratures can be adjusted in the settings button To adjust open the settings and then open the standby times of any given day with the Stand by times Daily plan button An overview screen opens Fig 5 59 Ov...

Страница 54: ...ched off for the set duration Circulation pause Example Circulation runtime 3 minutes Circulation pause 10 minutes If the circulation pump has been started it is in operation for 3 minutes and then disabled for 10 minutes This means that it can only be requested again by the control system after 13 minutes You can determine the required running time of the circulation pump in the following way Sta...

Страница 55: ...ETAtouch controller Fresh water module function block 55 ...

Страница 56: ...ting Fig 5 61 Overview with radiators Overview of the heating circuit without room sensors In the overview a temperature slider appears rather than the measured room temperature Fig 5 62 Underfloor heating without room sensor Mode of operation If the heating circuit is turned on heat is supplied on the basis of the time windows set The temperature is controlled with the heating curve see chapter 5...

Страница 57: ... any time window or set temporarily until the next time window Set back button Thus the heating circuit is manually switched to reduced operation mode With the additional switch above the symbol the heating circuit can be set to remain permanently in reduced operation mode or set temporarily until the next time window Temperature slider This slider is only displayed if a room sensor is installed f...

Страница 58: ...ach heating circuit a time frame can be defined for reduced operation mode The heating circuit is then operated with the lowest set back temperature This function is also called the holiday function To set the holiday function open the heating circuit settings button and press the Vacation button A settings window appears Fig 5 64 Holiday function 1 Start of the period 2 End of the period Tap the ...

Страница 59: ...rrent outside temperature the control system uses the heating curve to calculate the required feed temperature for the heating mode For example an outside temperature of 10 C would result in a feed temperature of 33 C see diagram Fig 5 66 Heating curve of underfloor heating 1 Maximum flow temperature 2 Parameter Flow at 10 C is used for adjusting the heating curve for outside temperatures below fr...

Страница 60: ...d check the room sensor or in the control system set the operating mode and the desired room temperature It is possible that the heating circuit has been switched off or the room temperature is set too low Fig 5 68 ETA room sensor Check the settings of the following parameters in the text menu of the heating circuits Room effect see chapter 5 7 4 Text menu Adjustable parameters Switch on diff room...

Страница 61: ...r service 5 7 3 1 Adjusting the heating curve Adjusting the heating curve The heating curve is adjusted through the settings of the heating circuit button in the heating curve menu button How the heating curve is altered depends on whether the rooms are always too warm or too cold at outdoor temperatures above freezing or below freezing Make adjustments to the heating curve in small increments onl...

Страница 62: ...t noticeable 5 7 3 2 Setting the heating limits Specifying the heating limits for the heating circuit For each heating circuit separate heating limits are adjustable for heating mode within the set heating times and reduced operation mode outside the set heating times If the current outside temperature exceeds the configured heating temperature for example 18 C the heating circuit is switched off ...

Страница 63: ...side temperature If the room temperature falls by 1 C the target flow temperature is increased by this set value If the room temperature rises by 1 C the target flow temperature is decreased by the set value For underfloor and wall heating with a design temperature of 30 C set the room influence to 1 C with a design temperature of 40 C set it to 2 C Explanation of Switch on diff room and Switch of...

Страница 64: ... tank Solar heating system with only one tank The solar heating system is controlled by switching the collector pump on and off This is switched on as soon as the collector has exceeded the minimum temperature Collector min and is warmer by the difference Switch on diff factory setting 7 C than the tank being charged Fig 5 74 Solar heating system connected to buffer The speed of the collector pump...

Страница 65: ...re the temperature difference between the tanks 5 8 3 Solar heating system for buffer with 2 internal coils Switching between two internal coils When switching between two internal coils charging is defined in two different areas of the buffer The purpose is to produce a sufficiently high temperature in the top part of the buffer so that the boiler does not have to start for hot water charging Fig...

Страница 66: ...rFlex function block The options for stratified charging of the buffer by the solar heating system have been simplified for the PufferFlex You can find the different settings in the BufferFlex text menu under parameter Solar storage strategy The settings are described below Explanation of Solar storage strategy Various settings can be made for stratified charging of the buffer by the solar heating...

Страница 67: ... and the tank Fig 5 77 Solar heating system with external heat exchanger connected to buffer In addition a variable speed secondary pump is available for the heat exchanger Through speed adjustment it attempts to adapt the temperature difference between collector and secondary flow see chart 78 C 74 C 4 C to the temperature difference between the return of the solar heating system and the tank 49 ...

Страница 68: ...temperature increases or the speed of the secondary pump decreases 5 8 6 Text menu Adjustable parameters Adjustable parameters Detailed descriptions of the parameters are provided below Explanation of Collector min This parameter sets the minimum temperature for starting the solar pump The solar pump can only be started once the solar panel has exceeded this tem perature Do not set this temperatur...

Страница 69: ...ETAtouch controller Solar function block 69 ...

Страница 70: ...nd can supply the consumer e g buffer with heat at the same time as the main heat producer e g boiler In heating systems with a buffer the burner is only put into operation if the buffer requests a capacity that is higher than that of the ETA heating boiler For heating systems without a buffer the burner is only put into operation when the ETA heating boiler does not reach the required output The ...

Страница 71: ... of the time window setting 5 Overview of all time windows for the entire week 6 Delete time window 7 Period of the time window Setting the time window and copying to other days of the week is described in chapter 5 1 6 6 Setting a time window 5 9 2 Text menu Adjustable parameters Adjustable parameters Detailed descriptions of the parameters are provided below Explanation of Start lag This paramet...

Страница 72: ...mand If it is closed heat is being demanded from the ETA heating system External heat demand function If the heat consumer is turned on heat is supplied on the basis of the set time windows In the settings menu button time windows and temperatures for the heat consumers are shown See chapter 5 10 1 Setting the charging times Within the time slots the external heat consumer can demand heat from the...

Страница 73: ... Setting a time window 5 10 2 Text menu Adjustable parameters Adjustable parameters Detailed descriptions of the parameters are provided below Explanation of Enable temperature This parameter is used to set the minimum temperature of the heating system for starting the charging pump of the external heat consumer Explanation of Frost protection This parameter is used to set the freeze protection li...

Страница 74: ...ipeline pump control system If the outside temperature drops below the set frost protection limit factory set at 20 C the remote pump remains in operation until the outdoor temperature is at least 2 C higher than the set temperature Frost pro tection Transmission line as heat transfer station This function block can also be used to control a heat transfer station in a local heating network This fu...

Страница 75: ...let supply 3 Consumer of the pellet store boiler 4 Enter new stock levels after filling Stock level button After filling the pellet store a new supply of pellets is fed in with this button Example 1200 kg of pellets are available and 3000 kg is refilled The new stock will be registered as 4200 kg Entering a minimum level for the pellet stock You can define a minimum level for the pellet stock so t...

Страница 76: ...on probe it is enabled again symbol Function of the switching unit The conveying and clear modes are represented by a green line between an enabled suction head and the switch unit If a suction head is no longer able to convey pellets the control system automatically switches to clear mode Here the conveyance hose now introduces return air in order to dislodge any blockages in the conveyance hose ...

Страница 77: ...ion chamber under the tilting grate Remove both combustion chamber covers from the combustion chamber 4 The grate cannot be tilted by hand Tipping is done by starting de ashing with the De ash button The grate tilts and remains in this position for ap proximately 15 seconds WARNING Danger of crushing due to tilting grate When the grate is tilted switch off the boiler with the mains switch This cau...

Страница 78: ...cures the ash screw Fig 6 2 Removing the screw 3 The ash screw is now loosened from its shaft and can be extracted from the ash duct by turning it anti clockwise Fig 6 3 Unscrewing the ash screw 4 Remove the ash or the foreign body from the ash duct 5 Then insert the ash screw again and secure it with the M8 screw Replace the ash box and switch on the boiler with the mains switch To perfom the che...

Страница 79: ...hey are closed and their seals are in order Keep an eye on the quality The composition and characteristics of pellets are standardised but not legally regulated To heat with minimum possible maintenance demand certified quality in accordance with the applicable current standards from your pellet dealer Delivery quality also includes the last link in the transport chain blowing the pellets into the...

Страница 80: ...for the emissions measurement Required heat up time and residual oxygen level Emissions may be measured only once the boiler has reached the necessary operating temperature not flow temperature Therefore once switched on the cooled boiler must run for a certain amount of time heat up time in order to reach the required operating temperature These times are indicated in the following table Measurin...

Страница 81: ... surements The distance from the boiler s flue duct connection or from a pipe bend must be at least twice the diameter of the flue duct Fig 8 1 Distances for measurement opening Cleaning aperture in the connecting pipe Easily accessible cleaning apertures must be available for cleaning the flue pipe Fig 8 2 Cleaning aperture 8 1 3 Adjustable parameters Setting the duration of the emission measurem...

Страница 82: ... the room sensor or in the controller so the heating circuits will continue to consume heat even during the transitional period After measuring emissions switch back to the original operating mode and room temperature Preparing and performing emissions measurement 1 The boiler must be switched on with the On Off switch In the boiler overview press the Measurement button in order to open the emissi...

Страница 83: ...ad respectively and the output adjustment is blocked while doing so Therefore the boiler output is not reduced The control system also ensures that heat is mandatorily dissipated into the heating system if this is possible 5 Switch the boiler back to normal mode after the emissions measurement To do this press the Deactivate measurement button in the settings window If you do not press this button...

Страница 84: ...s high quality fuels with the lowest possible ash content barks impurities leaves needles are indis pensable The Clean Air Act 1993 and Smoke Control Areas Under the Clean Air Act local authorities may declare the whole or part of the district of the authority to be a smoke control area It is an offence to emit smoke from a chimney of a building from a furnace or from any fixed boiler if located i...

Страница 85: ...orroding pH value of around 8 pH value between 8 and 9 may require dosing with trisodium phosphate If the heating water s pH value has not itself changed to more than 8 after a week of operation increase it by adding 10 g m of trisodium phosphate Na3PO4 or 25 g m of trisodium phosphate dodecahydrate Na3 PO4 12H2O Wait another 2 4 weeks before making further corrections The pH value must not exceed...

Страница 86: ...ue If the system is filled with large amounts of water exactly the same agent must be used again Mixing with other water additives or with antifreeze can result in corrosion 10 2 Refilling Fill up heating water If water refilling in the heating system is required for example to adjust the pressure the same water as used during initial filling should be used wherever possible If only a small amount...

Страница 87: ......

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