Herz commotherm 30 SW Operating Instructions Manual Download Page 49

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Term

Description

Requirement at Outside
temperature 2

Requirement at adjust Outside temperature 2

Outside temperature 2

Indicate at adjustable outside temperature 2

Switch off temperature

At this temperature the boiler gets switched off.

T-CONTROL -

Description

Requirement at adjust Outside temperature 2

Indicate at adjustable outside temperature 2

At this temperature the boiler gets switched off.

Time mode

Unit

°C

Summary of Contents for commotherm 30 SW

Page 1: ...Operating instructions commotherm SW WW brine water water water heat pump ...

Page 2: ...d HERZ solar collectors come with a 5 year warranty We generally guarantee freedom from defects of mobile objects purchased for a period of 2 years to a maximum of 6 000 h moving purchased items the guarantee is generally for a period of 3 years to a maximum for 9 000 hours of operation Wearing parts are not covered by the guarantee warranty The warranty claim is cancelled when missing commissioni...

Page 3: ...e switch 4 2 2 High pressure switch 4 3 Operation conditions to be maintained 4 3 1 Permissible temperatures 4 3 2 Flow rate 5 OPERATING CONDITIONS 6 TEMPERATURE MANAGER 7 T CONTROL 7 1 Starting the system 7 2 Operation and handling 7 3 Main menu 7 4 Symbols explanation TABLE OF CONTENT NOTES ON DOCUMENTATION Operation and maintenance INFORMATION OF THE DEVICE MODE OF OPERATION stics of the refrig...

Page 4: ... 10 10 External requirement module 7 10 11 Additional boiler module external 7 11 Menu settings 7 11 1 Network configuration 7 11 2 Modbus settings 7 11 3 Screensaver 7 11 4 Information overview 7 11 5 Sending E mails 7 11 6 E Mail status report 7 11 7 Server settings 8 FAULT REPORTS AND THEIR CO 9 EC EU DECLARATION OF 10 NOTES Determining main menu values menu display values Deleting main menu di...

Page 5: ...ke any changes to the construction or the state of the system without consulting the manufacturer or his authorised representative All connections are to be checked before the commissioning of the system in order to make sure that extinguisher of the prescribed size is to be kept by the boiler room relevant national regulations Carry out maintenance regularly or use our Customer Service department...

Page 6: ...1 Notes on documentation 6 Pictogram Signal word Hand injuries Admittance Notes on documentation Meaning Warning against hand injuries No admittance without authorisation ...

Page 7: ...supervised or instructed by a responsible person Due to its functionally limited electrical and mechanical characteristics with regard to usage operation and maintenance if the equipment is not able to work according to its appropriate use or improper interference occurs it may cause serious health and material damage It is therefore conditional that the planning and implementation of all installa...

Page 8: ...ent immediately The generated system noise during operation does not present any danger to the lth Before starting to carry out any work on the system but especially before opening covers protecting live parts the system is to be properly disconnected from the power supply Besides the main circuits attention is also to be paid to any existing additional or auxiliary circuits in the process The nor...

Page 9: ... its technical range of application The technical area of application is shown in the assemby instructions To the intended use of the device the following also applies Recognition of the assembly instruction and electrical documentation other applicable documents Care and maintenance conditions see chapter 3 3 The type label is located on the back side of the heat pump The type label shows item nu...

Page 10: ...veau of the steamed refrigerant is rises up to a higher level by the compressor 4 In the condenser 6 the heat is transferred to the heating system and the refrigerant becomes liquid In the refrigerant accumulator 8 the liquefied working medium is collected The remaining gas fraction is retained and only the liquid refrigerant passes the filter dryer 9 and t 10 With help of the expanison valve 11 t...

Page 11: ...ar may arise The device is under voltage Removing the device casing as well as wo equipment parts may lead to serious physical harm The refrigerant supplied can affect surfaces of the equipment parts pipes and compressor at temperatures of more than 100 C risk of burning Work on equipment parts as well as electrical cabling may only be carried out by qualified specialists Generally what is underst...

Page 12: ... service or customer service People must leave the room where the equipment is located straight away Consult the doctor or veterinarian if people or animals were exposed to an increased dose for a long Switch off the power immediately In the event of fire any type of fire extinguisher may be used There is no risk of the R410A refrigerant escaping if the HERZ heat pump is used correctly If there is...

Page 13: ... described below which must be adhered to In addition summarizes an overview of the operating conditions to be observed Table 4 2 also gives a summary on avoiding faults if these conditions are not adhered to The heat pump should be operated with a maximum flow temperature of 55 C If a flow temperature of more than 55 C is selected the heat pump works inefficiently In addition the compressor is he...

Page 14: ...device is released high pressure switch With new systems daily checking of the water flow rate is required thereafter annually The system will be extremely overloaded until the safety device is released low pressure switch In addition a freeze of the system and the device inernal heat exchanger and subsequent escape of refrigerant can take place In the worst case the device is destroyed and must b...

Page 15: ...according to the fixed set pump stopping time Fault A serious fault has occurred The heat pump and all outputs are switched off too Defrost In an air water heat pump the evaporator on which ice can form is defrosted This function may have been triggered by the button manual defrost or by the automatic defrost process Cooling mode This condition indicates that the heat pump is cooling i e the proce...

Page 16: ...at consumers External stop responded and the heat pump is switched off The heat pump only starts up again if the input external stop is no longer responding This input can respond for example through phase limit switching by the energy supply company Bivalent Alt If this operating state is displayed the connected second heat generator is running and the heat pump is Emergency mode In this mode the...

Page 17: ... demand temperature to the temperature manager The sent required demand temperature is a sum lated temperature demand set up increase The heat supplier heat generator respectively heat pump buffer which receives the different module demand temperatures from the temperature manager must supply the required temperature demand to the differe temperature manager calculates the maximum demand temperatu...

Page 18: ...the screen with fingers or pen The handling and menu navigation are described in this chapter Every single T CONTROL parameter is To switch on the display the following condition must be fulfilled The heat pump must be connected to the power supply If it is fulfilled the starting process of the display which takes 1 2 minutes starts see Starting process of the display Operation and handling sensit...

Page 19: ...at pump buffer hot water tank heating circuit and so on are shown The shown values can be adapted individually the main menu will be displayed 7 3 fault messages warnings alarms will be displayed 7 14or chapter 7 8 the individual modules heat pump hot water tank buffer heating circuit solar etc will be displayed chapter7 9 the menu settings network configuration E Mail screen saver will be display...

Page 20: ...ly at the heat pump aggregate Test is active the symbol will turn green and the message AGG ACTIVE is shown on the display such as firmware module hardware module software version etc module heat pump hot water tank buffer solar heating circuit navigation can be used to navigate in each module heat pump hot water tank buffer solar heating circuit hydr compensator net pump zone valve ext demand An ...

Page 21: ...e control will be locked the previous page will be displayed T operations can be performed test see chapter 7 4 Setting up or changing of date time see chapter 7 6 Navigation in the menu settings see chapter 7 11 Navigation 2 Screen entry figure 7 5 Code Note is displayed Enter the corresponding code see below and press OK to confirm the main menu will be displayed if you have already entered a co...

Page 22: ... network connection to the internet via LAN cable Act Interval the update interval of date and time in hours can be set up i e every 12 hours the summer and winter time gets NTP Update a NTP update can be carried out The time and date will be updated immediately the screen is locked cleaning the main menu will be displayed used to synchronize date A valid network connection via a LAN cable to the ...

Page 23: ...elected displayed see BUFFER i000 the buffer values which can be selected manually will be displayed HOT WATER TANK i001 the hot water tank values which can be selected manually will be displayed HEATING CIRCUIT i002 the heating circuit values can be selected manually will be displayed TIME MODE 000 the time mode values which can be selected manually will be displayed SOLAR i004 the solar values w...

Page 24: ... will be confirmed and displayed at the main menu the page previous page of the individual modules will be displayed see the second page will be displayed Note The same procedure can be applied to all other modules Deleting main menu display values Delete all display values Delete optional display entry chapter 7 5 show value Navigation Code entry chapter press 3 5 seconds on the to deleted value ...

Page 25: ...and its correction is shown in chapter T Fault messages and warnings figure 7 14 Fault messages fault messages will be displayed all fault messages will be displayed A red highlighted field represents an active fault appears in the lower right box An orange highlighted field represents a warning represents information no fault has occurred A highlighted green field with crossed text represents a f...

Page 26: ...ditional boiler menu will be displayed see chapter it is possible to navigate the module menu up and down figure 7 15 Modules overview the heat pump menu will be displayed see chapter 7 10 1 page28 the hot water tank values menu will be displayed see chapter 7 10 2 page34 the buffer values menu will be displayed chapter 7 10 3 page37 the heating circuit values menu will be displayed see chapter 7 ...

Page 27: ...on time Agg Test Overview Status Settings Agg Test Time mode Solar Overview Time program Settings Heat curve Overview Status Settings Agg Test Net pump Zone valve Overview Status Settings Agg Test Barrier times Overview Status Settings Agg Test Barrier times Additional boiler Overview Status Settings Agg Test Barrier times At this point the navigation to the most important settings should be shown...

Page 28: ...and right edge of the screen Switching on the heat pump So that the heat pump resp the compressor starts to run the following conditions must be fulfilled The heat pump must be connected to the power supply 3 400V ults on the touch display The temperatures and pressures of the heat source and cooling circuit must be within the limits The heat pump may not be blocked by the energy supply company Th...

Page 29: ...d the condensator pump and the source pump run after a set time This run after is indicated ing mode stop Any residual heat cold is transported to the heat customer If the heat pump is not running mode heating mode and operating mode ready and the OFF activated no pump run after takes place Manual switching off of the heat pump by selecting the OFF An automatic shutdown can result for several reas...

Page 30: ...inmal running time of the compressor the heat pump is switched off To lower the flow temperature the condenser pump is switched on The pump continues running until the maximum temperature is undershot Operation If a further heat generator is present in the system this can cause the heat pump to be switcehd off The shutdown is effected either via outside temperature or via an adjustable flow temper...

Page 31: ...gh pressure sensor Display of the status OK NOK of the low pressure switch Indicates the state of the source pump If the indicator lamp lights up the source pump is running and the heat from the ground water or the soil is supplied to the evaporator in the heat pump Indicates the state of the condenser pump If the indicator lamp lights up the condenser pump heating pump is switched on and supplies...

Page 32: ...the state Sum annoyance At certain faults this indicator lamp lights up green Indicates the status of the softstarter If the control lamp lights up the softstarter has an error and this to the controller Indicates the status of the flow switch If the control lamp lights up the flow switch flow monitor indicates a lack of flow Indicates the status of the motor protection of the compressor If the in...

Page 33: ...h is obtained from the heat pump out of the heat source Display of the energy which is consumed of the heat pump Interval until the next maintenance interval 3000 operating hours or a maximum of one year When reset today s date 1 year is set as the new maintenance date Maintenance default value 3000 operating hours Reset is used to reset the values in the section Energy meter Date of the last rese...

Page 34: ...p is activated the hot water tank is heated independently maximum loading time to the requested set temperature Activates a full loading of the hot water tank ON OFF If full loading is activated the hot water tank is heated up to the requested must temperature only available if second temperature sensor is installed Heat pumps are not equipped with a second sensor as standard Indicates the hot wat...

Page 35: ...the required temperature Because of heat losses a surcharge to the hot water tank must temperature can be set Setting up maximum hot water tank loading time when hot water tank is loaded to hot water tank set temperature If the hot water tank isn t charged up within the set loading time an error appears and the hot water tank doesn t continue loading Setting up the legionella temperature Every 10 ...

Page 36: ...ing up individual circulation times of every weekday Monday preset gets assigned to remaining weekdays Indicates the state of the loading valve If the indicator lamp lights up the loading valve is open Only visible if loading valve is activated Indicates the state of the hot water tank pump If the indicator lamp lights up the hot water tank pump running Only visible if loading valve is not activat...

Page 37: ...er re layering Outside temp sensor Balancing outside sensor Buffer loading pump Fastrun open Fastrun close Description Indicates the buffer top temperature Indicates the buffer middle temperature no value is displayed here for HP Indicates the buffer bottom temperature Indicates the switching temperature average daytime temperature In general the switching temperature conducts the switching betwee...

Page 38: ...is is not the case the boiler is charged to the summer set temperature To compensate the heat losses on the pipes between heat pump and buffer tank an temperature increase can be applied to the buffer must temperature Depending on the length of the pipes an temperature increase can be set After the heat pump is switched off there is firstly a comparison to check whether the required temperature at...

Page 39: ...buffer Internal modules use a common outside temperature sensor External modules can use an own outside temperature sensor but also a common Adjusting the balancing of the outside temperature Shows the outside sensor not the correct outside temperature the value can be adjusted setting range 5 C This parameter has to be activated if the same buffer is used for heating and cooling in the case of an...

Page 40: ...p Screed days Relative humidity Dew point Parameter I Room set temperature Kneeling temperature Flow fixed temperature Room influence Correction Kneeling influence End run Switching temperature Temp increase Outside temp sensor Balancing outside sensor Hot water tank priority Kneeling barrier Heat curve settings Time program Flow max temperature Root point temperature Flow temperature at 10 C Flow...

Page 41: ...eating circuit Indicates the state of the heating circuit mixer OPEN CLOSE Indicates the state of the heating circuit pump ON OFF Setting up the heat day of the screed drying Only visible if operation mode screed drying is activated Indicates the relative humidity only if active humidity measurement the dew point temperature only if active humidity measurement selected Activation heating circuit O...

Page 42: ...is higher then set room must temperature the option Kneeling barrier over room temperature provides a lock of the heating circuit Only when the room temperature has reached the kneeling temperature the heating circuit pump is activated again If the room temperature is exceeded the demand is always reset Mixer CLOSE and Pump OFF only if room temperature sensor is available Remote Control correspond...

Page 43: ...sable heat pumps to install an additional electric heater to compensate the increased heat demand Due to increased compressor run times and lack of heat output at brine water cooling of the heat source can occur and thus lead to a safety shutdown of the heat pump After selecting screed drying the flow set temperature process which is shown in figure ediately If a lower flow temperature is desired ...

Page 44: ...0 24 30 25 35 26 40 27 45 28 35 29 25 30 0 Heating circuit module temperatures and error continuation for screed drying Flow set temperature in If screed drying gets interrupted resume drying as follows Day of interruption resume from day 0 15 16 17 23 24 28 29 temperatures and error continuation for screed drying If screed drying gets interrupted resume drying as follows resume from day 1 16 17 2...

Page 45: ...ces the flow temperature as a function of the room temperature The higher this value is set the higher the influence of the difference tween actual room temperature and room must temperature on the calculated flow must temperature Reference value at underfloor heating 1 2 at Radiators 3 4 Room set temperature 21 C Actual room temperature 18 C T 3 C Room influence such as 2 6 C The flow temperature...

Page 46: ... the heating circuit remains activated Setting up the temperature increase of the required temperature Due to heat losses a surcharge to the must temperature of the heating cicuit can be set Selection of the outside temperature sensor No outside temperature sensor If there is no outside temperature sensor the heating circuit is always active If multiple outside temperature sensors are installed th...

Page 47: ...ressing this field between three times can be selected time 1 05 00 07 30 time 2 17 00 21 00 time 3 00 00 00 00 Setting up individual times of every day in which the heating circuit is Monday preset gets assigned to remaining weekdays If the indicator light lights the output for controlling of the heating circuit pump is switched If the indicator light lights the output for controlling of the heat...

Page 48: ... adjustable outside temperature 1 Time mode Time program Time Operation modes Time requirement Heat curve Description Indicates the state of the active requirement of the time mode If the indicator lamp lights up the requirement is activated Indicates the required temperature Three different time options are available 08 00 10 00 15 00 21 00 00 00 00 00 Setting up individual hot water tank loading...

Page 49: ...erature 2 Indicate at adjustable outside temperature 2 Switch off temperature At this temperature the boiler gets switched off T CONTROL Description Requirement at adjust Outside temperature 2 Indicate at adjustable outside temperature 2 At this temperature the boiler gets switched off Time mode 7 49 Unit C C C ...

Page 50: ...or 2 pumps with an external solar module The solar both in the hot water tank as well as in the buffer tank Status I Collector flow temperature Collector back flow temperature Tank 1 temperature Tank 2 temperature Actual yield Daily yield Total yield Collector pump Loading pump Switching valve Settings II Pump trigger Tank 1 must temperature Difference 1 Tank 1 max temperature Tank 2 must temperat...

Page 51: ...ted 0 till 99 9 l min When activating this parameter the rotation speed control is activated and the pump is controlled via pulse width modulation Attention use suitable pumps Is the min rotation speed control of the pump Must temperature of the rotation speed control middle collector temperature The larger the must temperature the smaller the rotation speed Is a measure of the pump rotation speed...

Page 52: ...p increase Barrier times Time Description Indicates the hydraulic compensator temperatureThe hydraulic compensator has a built in temperature sensor Indicates the flow temperature of the upstream module e g boiler Indicates the required temperature of the downstream module e g heating circuit Indicates the state of pump 1 ON OFF Pump 1 is the pump in the back flow on the primary side Indicates the...

Page 53: ...tion Indicates the temperature of the upstream module e g buffer top temperature Indicates the required temperature of the downstream module e g The required temperature is the temperature which the upstream module disposal to the downstream module Indicates the state of the net pump Setting up the switch on barrier for the net pump If the flow temperature of the upstream module e g boiler buffer ...

Page 54: ...tream module temperature e g buffer top temperature Indicates the required temperature of the downstream module e g The required temperature is the temperature which the upstream module disposal to the downstream module Indicates the state of the zone valve Setting up the switch on barrier of the zone valve If the flow temperature of the upstream module e g boiler buffer is higher than the set up ...

Page 55: ... g heat pump or buffer Status Demand active Analogue must Analogue must External must temperature Analogue must active Analogue must temperature 4 mA Analogue must temperature 20 mA Analogue must temperature Max Analogue must temperature Line monitoring Barrier times Time Description Indicates a digital input signal of the external control loop requirement If the indicator lamp lights up the exter...

Page 56: ... of 20 mA the heat pumps operates with the set up temperature Setting up maximum analogue set temperature Setting up minimum analogue set temperature Activates the line monitoring ON OFF Two different time options are available 08 00 10 00 15 00 21 00 Setting up individual hot water tank loading times of every weekday when it will be not heated Monday preset gets assigned to remaining weekdays Ext...

Page 57: ...t the input of the external requirement module a current signal between 4 and 20 mA should be given because a current signal is compared to a voltage signal insensitive to electromagnetic disturbances and voltage losses at the cables With an internal resistor 500 Ohm the current signal is converted into a voltage Externes Anforderungsmodul 500 Ω Eingangssignal Stromsignal External requirement modu...

Page 58: ...the Status Boiler temperature Flue gas temperature Pump Release Boiler type Waiting period Flue gas min temperature Boiler max temperature Boiler min temperature Minimum requirement Control hysteresis Agg Test Pump Release Time Description Indicates the state Manual boiler active inactive Automatic boiler Release active inactive Indicates the boiler temperature 55 90 Indicates the flue gas tempera...

Page 59: ...trol hysteresis Switch Off hysteresis If additional boiler temperature exceeds required additional boiler temperature control hysteresis the additional boiler will be turned off Setting up pump trigger Setting up pump turn off difference Setting up additional boiler pump stopping time Indicates the state of the back flow pump of the additional boiler If the indicator lamp lights up the pump of the...

Page 60: ...s setting will be displayed see chapter 7 11 6 the mail server settings will be displayed see chapter 7 11 7 111 OK figure 7 22 Overview menu settings the network configuration will be displayed 7 11 1 page61 settings will be displayed 7 11 2 page62 the screensaver settings will be displayed 7 11 3 page63 information such as software version operating system number will be displayed page63 mail ca...

Page 61: ...up the gateway address can be set the network settings can be saved the submenu for the DNS settings will be displayed see figure 7 24 When activated the IP address assigned automatically if the ller is connected to the The menu settings will be Note DNS means Domain Name S domain into the corresponding IP address That means by setting up the DNS server the T CONTROL is able to send E We recommend...

Page 62: ...us settings Setting up the TCP port number 502 is reserved for Modbus TCP Setting up the time delay of the data transfer Setting up the buffer size in byte Setting up the maximum values of the servers the network configuration page will be displayed again Modbus is an application protocol to exchange messages between intelligent Modbus controllers in the building management system The Modbus proto...

Page 63: ...SB Stick is plugged changed T figure 7 26 Screensaver the screensaver gets activated deactivated the screen saver waiting time can be set up the screensaver standby mode gets activated deactivated the standby mode waiting time can be set up the menu settings will be displayed again figure 7 27 Information overview The information shows an overview of the current software versions operating system ...

Page 64: ...values error warnings info are saved the mail settings will be displayed again see Note Selection 1 The box must be activated If the status is inactiv no E mail will be sent to the recipient 2 If the box is checked errors will be transmitted 3 If the box is checked warnings will be transmitted 4 If the box is checked information will be transmitted CREATE RECEIVER LIST receiver list Mail receiver ...

Page 65: ...ING Navigation Screen Mail subject figure 7 31 Test Mail sending If the following button is pressed the entry will be confirmed Test mail send Send E mail to recipient only visible possible if sending is active the last character will be deleted characters will be written in T CONTROL 7 65 MAIL SENDING Mail sending If the following button is pressed mail to recipient only visible possible if sendi...

Page 66: ...n 1 the quantity of times 2 6 individual sending times error warning information The menu settings will be displayed again Mail status report the quantity of times maximum 5 can be set up individual sending times error warning information see figure The menu settings will be displayed again figure 7 29 can be set up ...

Page 67: ...nd E values T figure 7 33 Server settings the mail server address can be entered outgoing mail server mail address can be entered the password can be entered the username can be entered the encoding can be chosen no SSL TLS To send mail at the adjusted values error warning information according to chapter mail address After the successful creation of an E ma exemplified values shown in Look up the...

Page 68: ...ions If a fault arises the fault must always be rectified first and afterwards cleared by switching the system on again If several faults arise at the same time they will be displayed in order of their occurrence 030 040 050 180 200 210 220 031 181 201 211 221 032 042 072 182 202 212 222 033 043 053 203 213 223 034 044 054 204 214 224 205 215 225 036 046 056 206 216 226 037 047 057 207 217 227 038...

Page 69: ... as Check wiring incl connections replace asnecessary contracting party Failure heating circuit back flow temperature sensor Heating circuit Check sensor replace asnecessary Check plug replace Check wiring incl connections replace asnecessary contracting party Failure room temperature remote control FBR1 Check sensor replace as necessary Check plug replace as necessary Check wiring incl connection...

Page 70: ...ailure connection Check sensor replace asnecessary Check plug replace asnecessary Check wiring incl connections replace asnecessary contracting party Failure hydraulic compensator temperature sensor cable break short circuit failure connection Check sensor replace Check plug replace asnecessary Check wiring incl connections replace asnecessary contracting party Collector temperature exceeds lhe li...

Page 71: ...boiler minimum flue gas temperature wasn t reached within 1 hour operation mode automatic burner Check additional boiler Tank thermal disinfection active Tank will be heated up to 75 C Display only no action required Communication error of CAN 2 to external module Check module CAN connection Check module contracting party Communication error of CAN 1 with an internal module Check module CAN connec...

Page 72: ...e of the cooling circuit Check sensor replace asnecessary Check plug replace asnecessary Check wiring replace asnecessary contracting party Failure source pump System pressure is too low Exhausted source Function check source pump Check system pressure contracting party The pressure is outside the defined range where the compressor should operate Function check condenser pump heating pump contract...

Page 73: ...m specified number of compressor starts 6 starts per hour Wait till the compressor again contracting party Flowmeter if available reports no or too low flow Failure condenser pump Air in the system Function check condenser pump Vent the system contracting party Too low temperature in the heat generator Antifreeze function is activated Display only no action required Heat pump parameter is not in t...

Page 74: ...8 Fault reports and their corrections 74 254 AUTOREBOOT 68 Software Fault reports and their corrections Software monitoring fault contracting party contracting party ...

Page 75: ...se are to be taken from the order confirmation and the instructions of the machine documentation other agreements are not being used In accordance with regulations the installation and commissioning of the heat pump must be carried out by specialist personnel authorised by HERZ If the installation or commissioning a connection to other machines or changes of the technical specification were not ca...

Page 76: ...10 Notes 76 10 NOTES ...

Page 77: ...Notes 10 77 ...

Page 78: ...10 Notes 78 ...

Page 79: ...Notes 10 79 ...

Page 80: ...GmbH Herzstraße 1 7423 Pinkafeld 43 3357 42 84 0 0 43 3357 42 84 0 190 office energie herz eu Deutschland Germany Herz Armaturen GmbH Fabrikstraße 76 D 71522 Backnang 49 7191 9021 0 49 7191 9021 79 verkauf herz armaturen de Versionnumber 1 0 ...

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Herz commotherm 30 SW, Operating Instructions Manual

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