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Operating instructions commotherm heat pump for Brine- and water operation (BW, WW)
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Dear Customer! Your heating system is powered by a HERZ commotherm heat pump and we are pleased to be able to count you as one of our many satisfied owners of a HERZ system. The HERZ commotherm heat pump is the result of years of experience and continuous improvement.
Should you have any queries, please call us on +43 / 3357 / 42840-840. Initial commissioning must be carried out by the HERZ Customer Service department or an authorised specialist (otherwise any warranty claim will not be applicable). Symbols...
HERZ. People (including children) who, because of their physical, sensory or mental capabilities or because of their lack of experience or knowledge, are unable to use the equipment safely must not use this equipment unless they are supervised or instructed by a responsible person.
In order to prevent any maintenance errors, if maintenance is not carried out properly, it is recommended to be carried out regularly by authorised personnel or by the HERZ Customer Service department. Spare parts must be obtained directly from the manufacturer or a distribution partner. The customer will not be exposed to any health risks as a result of the noise generated by the machine.
Information about the product INFORMATION ABOUT THE PRODUCT Intended use The commotherm heat pump may be used only for heating, cooling and hot water heating. Any other use is considered improper. In addition, the device may only be used within its technical application area! The technical application is listed in the assembly instruction! The intended use of the device includes also the attention of the following documents: ...
Information about the product Care and cleaning The care of the cover parts of the heat pump can be performed with a damp cloth and commercially- available cleaning agents. Do not use cleaning products that contain abrasives, acids and/or chlorine. These products could destroy the surface of the cover parts and it is possible that damages can occur on the heat pump.
Plant overview PLANT OVERVIEW commotherm 5 – 15 BW/WW Integrated control The commotherm heat pump is equipped with a user-friendly touch – display, which can be used to control and operate the system centrally. (The menu navigation for the control can be seen in chapter 8).
Equipment functioning EQUIPMENT FUNCTIONING The core part of your HERZ heat pump is the cooling circuit. The main components are the evaporator (1), compressor (2), condenser (3), expansion valve (4) and the refrigerant. At this point we should mention that the handling of the refrigerant is described in chapter 5.1.
Generally, what is understood by a refrigerant is a working material for heat pumps or cooling machines. The refrigerant circulates in a closed system and is also subject to various changes in condition (see figure 5.1). The HERZ heat pump works with the refrigerant, R407C, which consists of the following components: ...
High pressure switches also serve to switch off the compressor in an emergency. In contrast with low pressure switches, however, this turns off the compressor at a higher pressure. In the event of the BW/WW heat pump this occurs at pressures of > 28 bar.
Equipment functioning Operating conditions to be maintained Some important operating conditions described below, which must adhered Betriebsanleitung_commotherm_5_15_SW_WW_Touch_Englisch_V1.2...
Equipment functioning Table 5.2 also gives a summary on avoiding faults, if these conditions are not adhered to. 5.3.1 Permissible temperatures Flow temperature The heat pump should be operated with a maximum flow temperature of 58° C. If a flow temperature of more than 58°...
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Equipment functioning Table 5.2: Summary of the operating conditions to be maintained Fault source Possible consequences Measures to avoid faults Flow temperature Device works inefficiently Adapt operating temperatures to > 58°C the actual requirements and set as Device is constantly malfunctioning low as possible ...
Operating conditions Min. temp. OPERATING The heat pump changes in this condition as soon CONDITIONS source reached minimum temperature. The source pump is also switched which brings about circulation Ready regeneration of the equipment in the brine circuit. There essentially versions Max.
Temperature manager TEMPERATURE MANAGER The heat demand of the individual modules (boiler, hot water tank, heating circuit, solar, etc.) is controlled by the temperature manager. The below-mentioned scheme (see figure 7.1) explains the functionality of the temperature manager. A module contains of an in- and output. Every module sends a required demand temperature to the temperature manager.
T-Control T-CONTROL The handling and menu navigation are described in this chapter. Every single T-CONTROL parameter is explained in chapter 8.10 (page 28). Starting the system To switch on the display, the following condition must be fulfilled: The heat pump must be connected to the power supply If this condition is fulfilled, the starting process of the display, which takes 1-2 minutes, starts (see figure 8.1).
T-Control Main menu After start up figure 8.3 will appear. In the centre of the screen important values according the boiler, buffer, hot water tank, heating circuit and so on are shown. The shown values can be adapted individually (see chapter 8.7.1).
T-Control Symbols explanation In this section important symbols are explained, which are shown on the menu figures. With the aggregate-test connected components can be tested individually. The symbol is only visible, if: the code has been entered (see chapter 8.5, page 22) and ...
T-Control Code – entry If entering the code, the following operations can be performed: Setting up values Activation of the aggregate-test (see chapter 8.4) Setting up or changing of date & time (see chapter 8.6) Navigation in the menu settings (see chapter 8.11) Navigation: Navigation: ...
T-Control Date and time Navigation: Navigation: Screen: Screen: figure 8.6: Date and time selection figure 8.7: General settings for NTP If the following button is pressed: If the following button is pressed: ENGLISH the language can be set up. ENGLISH the language can be set up.
T-Control Main menu values 8.7.1 Adding values Navigation: Navigation: Show value Screen: Screen: figure 8.9: Determining display values figure 8.8: Adding display values If the following button is pressed: If the following button is pressed: an overview of available values the selected value can be deleted Wert anzeigen...
T-Control Navigation: Navigation: Show value Load scheme Show value HEAT PUMP 002 Screen: Screen: figure 8.10: Load scheme figure 8.11: Determining display values Note: If the following button is pressed: The values of the default scheme can also be HP Status, the value will be confirmed and...
T-Control Fault messages and warnings Navigation: Screen: figure 8.14: Fault messages If the following button is pressed: Actual the current fault messages will be displayed. Archive all fault messages will be displayed. Note: A red highlighted field represents an active fault (appears in the lower right box). ...
T-Control Modules overview Navigation: Screen: figure 8.15: Modules overview If the following button is pressed: the „heat pump values“ menu will be displayed HEAT PUMP 002 (see chapter 8.10.1 – page 29) the „buffer values“ menu will be displayed BUFFER i000 (see chapter 8.10.2 –...
T-Control 8.10 Module configuration Heat pump Buffer Hot water tank Overview Overview Overview Status Status Status Outputs Settings Settings Energy meter Agg-Test Operating datea Heating circuit Time mode Solar Overview Time program Overview Status Settings Status Operation modes Settings Parameter Agg-Test Heat curve Time program...
T-Control 8.10.1 Heat pump Overview Status I Status II Flow temperature High-pressure control Back flow temperature Low-pressure control Source inlet temperature Source outlet temperature Hot gas temperature Outputs I...
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T-Control Term Description Unit Overview The definitive mode for the heat pump can be set here (OFF, Heating Mode mode, Cooling mode, Emergency mode). In this mode the heat pump is switched off and does not supply any hot or cold.
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If the pilot light is flashing, the refrigerant is supplied via an external source plate heat exchanger and therefore serves as passive cooling (only if a “passive cooling” module is present, only at BW/WW-HP). Display of the condition of the heating circuit switching valve: ...
T-Control 8.10.2 Buffer Overview Status I Status II Buffer top temperature Required temperature Buffer middle temperature Buffer loading pump Buffer bottom temperature Fastrun heating Switching temperature Outside temperature...
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T-Control Term Description Unit Settings I Winter must Setting up the winter set temperature. That´s the hot water tank bottom °C temperature temperature, which will be provided during winter operation Setting up the summer set temperature. That´s the hot water tank Summer must temperature (hot water tank bottom- respectively if installed hot water °C...
T-Control 8.10.3 Hot water tank Übersicht Status Settings Fast start Hot water tank temperature Must temperature Full-loading Loading valve Min. loading / temperature Hot water tank pump Temp.
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T-Control Term Description Unit Indicates/activates the min. loading / temperature (ON/OFF) If the hot water tank min. loading / temperature is activated and the Min. loading / state out of max loading time, the hot water tank temperature will be °C temperature set equal to min.
T-Control 8.10.4 Heating circuit Overview Status I Status II Flow temperature Switching temperature Back flow temperature Heating circuit mixer...
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T-Control Term Description Unit Status I Flow temperature Indicates the flow temperature of chosen heating circuit °C Back flow temperature Indicates the back flow temperature of chosen heating circuit °C Outside temperature Indicates the actual outside temperature °C...
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T-Control Term Description Unit Flow fixed Setting up the flow temperature during the set heating time (operation °C temperature mode “flow fixed”) Room influence influences the flow temperature as a function of the room temperature: Room influence Depending on the level of this value, the difference of required room- and room set temperature exerts more influence on the calculation of the flow set temperature.
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T-Control Term Description Unit Time program Three different time options are available: time 1: 08:00 – 10:00 Time 1 time 2: 15:00 – 21:00 time 3: 00:00 – 00:00 08:00 –...
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T-Control Bake out day figure 8.16: Flow set temperature as a function of bake out days at „Screed drying” After selecting „screed drying“ the flow set temperature process which is shown in figure 8.16 will start running immediately. A lower flow temperature, if required, can be set with the parameter “flow max. temperature”.
T-Control 8.10.5 Time mode Time program Settings Time Time requirement Term Description Unit Zime program Three different time options are available: time 1: 08:00 – 10:00 Time 1 time 2: 15:00 – 21:00 ...
T-Control 8.10.6 Solar NOTE: At the solar module 5 resp. 6 (only at external solar module) program numbers are available, which are set up by the service technician. The only differences of the programs are the integration and the number of tanks (e.g.
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T-Control Term Description Unit Settings I Program number Indicates the program number (1 to 6) Setting up the minimum outside temperature (-45 to 5), which conducts Antifreeze °C a permanent running of the solar pump to avoid freezing. Setting up the flow rate (0-99,9) for calculating of solar output Flow rate l/min...
T-Control 8.10.8 Net pump Overview Status Settings Existing temperature Switch on barrier Required temperature Temp. increase Pump Agg-Test Pump ´Term Description Unit Status Indicates the temperature of the upstream module (e.g.: buffer top Existing temperature °C...
T-Control 8.10.9 Zone valve Overview Status Settings Existing temperature Switch on barrier Required temperature Temp. increase Zone valve Agg-Test Zone valve OPEN Term Description Unit Status ...
T-Control 8.10.10 External requirement The external requirement module provides an interface to an external foreign control loop (e.g. central building control system). The requirement, which can be digital or analogue, is registered as a required temperature (e.g. must temperature by the heat pump or buffer top temperature by the buffer) in the heat supplier (e.g.
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T-Control External requirement at digital input: At a digital request the external set temperature gets transmitted as value to the heat supplier. External requirement at analogue input At an analogue request a calculated (= linearly interpolated) temperature gets transmitted to the heat supplier (see figure 8.18).
T-Control 8.11 Menu settings Navigation: Screen: figure 8.19: Overview menu settings If touching the following symbol: the network configuration will be displayed. (see chapter 8.11.1 – page 50) the Modbus – settings will be displayed. (see chapter 8.11.2 – page 51) the screensaver settings will be displayed.
T-Control 8.11.1 Network configuration Navigation: Navigation: Screen: Screen: figure 8.20: Network configuration figure 8.21: DNS settings If the following field is pressed: If the following field is pressed: With a correct configuration of the network (DNS!!!) it is possible to connect with the NetBIOS-name the IP address of the DNS server...
Modbus is an application protocol to exchange messages between intelligent Modbus controllers in the building management system. The Modbus protocol “TCP” is used in the HERZ control. This protocol transmits the encoded data via LAN cable. Modbus ensures that connected controllers in the building management system receive the transmitted data from the boiler, so they can continue processing.
T-Control 8.11.3 Screensaver Navigation: Screen: figure 8.23: Screensaver If the following field is pressed: 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 8.11.4...
T-Control 8.11.5 Mail sending Navigation: Navigation: receiver list Screen: Screen: figure 8.25: Mail – settings figure 8.26: Mail – receiver list If the following field is pressed: If the following field is pressed: E-Mail receiver list...
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T-Control Navigation: Navigation: Screen: Screen: figure 8.27: Mail subject figure 8.28: Mail sending If the following field is pressed: If the following field is pressed: Send E-mail to recipient. (only Test Mail the entry will be confirmed.
T-Control 8.11.6 Mail – status report Navigation: Screen: figure 8.29: Mail – status report If the following field is pressed: the quantity of times (maximum 5) can be set up. individual sending times (error, warning, information see figure 9.27) can be set up the menu settings will be displayed again Betriebsanleitung_commotherm_5_15_SW_WW_Touch_Englisch_V1.2...
Screen: figure 8.30: Mail – Server settings If the following field is pressed: smtp.1und1.de the mail server address can be entered (=outgoing mail server) touch@herz- the heat pump’s E-mail address can be entered energie.at Password the password can be entered...
Fault reports and their corrections FAULT REPORTS AND THEIR CORRECTIONS You should always take particular note of the safety instructions! 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. Fault report Cause of fault Fault correction...
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Fault reports and their corrections Fault report Cause of fault Fault correction Check sensor, replace as necessary Check plug, replace as necessary Failure room temperature remote Check wiring incl. Connections, 015 HC-ROOM SENSOR control (FBR1) replace as necessary ...
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Fault reports and their corrections Fault report Cause of fault Fault correction Too low temperature in the hot ANTIFREEZE HOT water tank Antifreeze function Display only, no action required. WATER TANK is activated Too low temperature in the ANTIFREEZE heating circuit...
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Fault reports and their corrections Fault report Cause of fault Fault correction Check sensor, replace as necessary Check plug, replace as necessary Failure Check wiring incl. Connections, 200 HP flow sensor Heat pump-flow sensor replace as necessary ...
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Fault reports and their corrections Fault report Cause of fault Fault correction 215 HP motor protection fan Fan motor protection is active - contracting party ✆ HP motor prot. Compressor motor protection is - contracting party ✆ compressor active The defrosting temperature was 217 HP defrosting error...
In accordance with the regulations, the heat pump must be installed and commissioned by qualified personnel authorized by HERZ. In the case of unsuited or inexpert application, connection to other machines or changes in the technical design, this declaration shall lose its validity.
Index INDEX Buffer ............. 32 External requirement ........47 Basic safety information........6 Heat pump ............. 29 Heating circuit ..........36 Hot water tank ..........34 Hydraulic compensator ........44 Documentation notes ..........5 Net pump ............45 Solar .............. 42 Time mode .............
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