Summary of Contents for CTC Union EcoZenith i360 Series
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162 505 77-1 2020-09-15 Providing sustainable energy solutions worldwide Installation and Maintenance Manual CTC EcoZenith i360 Indoor model with heat pump control 3x400V / 1x230V / 3x230V Important! • Read carefully before use, keep for future reference. • Translation of the original instructions.
Important! Information on air bleeding For the product to work as intended, the system must be fully bled. It is extremely important that a basic bleeding of the product is carried out systematically and carefully. Bleeding devices must be fitted to the system’s natural high points. A basic bleeding of the hot water tank can be carried out upon installation by releasing the safety valve, which must be fitted to the top of the product.
Table of Contents Important! Information on air bleeding 6.16 Sensor connection ______________________ ___________________________________________ Safety instructions 6.17 Current sensor connection _______________________________________________________ ________________________________ Technical data 6.18 Setting electrical output in backup power supply _______________________________________________________ Measurements 6.19 Resistance table for sensor _______________________________________________________ _______________________________ Overview CTC EcoZenith i360 Installation Communication _____________________________...
Safety instructions Turn off the power with an omnipolar switch before doing any work on the product. The product must be connected to protective earth. The product is classified as IPX1. The product must not be rinsed with water. When handling the product with a hoist ring or similar device, make sure that the lifting equipment, eyebolts and other parts are not damaged.
Technical data Designation CTC EcoZenith CTC EcoZenith CTC EcoZenith CTC EcoZenith i360 L i360 H i360 L 1x230V i360 L 3x230V General data Article number 589400001 589401001 589400002 589400003 7333077094485 7333077094478 7333077094492 7333077094508 Gross weight Net weight Dimensions DxWxH (with 781x694x1825 770x694x2090 781x694x1825...
Heating medium system Water volume (V) (PED) Max operating Mpa/ 0.3/3.0 0.3/3.0 0.3/3.0 0.3/3.0 pressure (PS) (PED) Max operating °C temperature (TS) (PED) °C Max adjustable operating temperature Product Kvs value Pressure differential See pressure See pressure See pressure See pressure diagram for product differential diagram differential diagram...
3. Overview CTC EcoZenith i360 The picture below shows the basic construction of CTC EcoZenith i360. If a heat pump is connected, the energy in the air or bedrock/ground is drawn up by the cooling system. The compressor then increases the temperature to a usable level. Afterwards it releases the energy for the heating circuit and DHW.
4. Important to remember! Check the following points at the time of delivery and installation: Transportation Transport the unit to the installation site before removing the packaging. Handle the product in the following manner: • Forklift. • Lifting eye that has been fitted to the lifting sleeve on top of the product in the expansion connection.
5. Pipe installation Minimum water volume in the heating The installation must be carried out in accordance with the applicable circuit (>25 ºC) for standards. Do not forget to flush the heating circuit clean before reliable defrosting connecting. Apply all the installation settings based on the description in the functionality: section entitled "First start".
Full schematic diagram This is a full schematic diagram of the connection options for the CTC EcoZenith i360. Different installations and systems may look different, e.g. a one or two-pipe system, In addition to basic which means that the finished installation may be different. installation Heating circuit 1 Heating circuit 2...
Interactive schematic diagram On CTC’s website, you can bring up and print out the schematic diagram for the installation you want by clicking the option in the interactive pdf file. Solar Energy mixing valve diverting valve control valve solenoid valve non-return valve shut-off valve sensor...
Install hot water pipe 5.5.1 Install dirt fi lter (1). 5.5.2 Install cold water supply (2) with non-return valve. 5.5.3 Install the fi lling valve (3). 5.5.4 Install hot water pipe from tank (4). Check function – flush. 5.5.1 5.5.4 5.5.3 5.5.2 Plate heat exchanger...
Install pipe for radiator system Heating circuit 5.6.1 Install primary fl ow with shut-off valve. 5.6.2 Install return line. 5.6.2 fi lling valve return from radiator system 5.6.1 primary fl ow to radiator system diverting valve DHW/HS electric fl ow heater circulation pump 5.6.3.
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5.6.3 Adjust the pre-assembled expansion tank to the right pre-pressure by using the valve to raise or lower the pressure. Adjustment of pre-pressure. The pre-pressure in the expansion tank is calculated according to the height (H) between the highest-positioned radiator and the expansion tank. The pre-pressure must be checked/set before the system is filled with water.
Install pipes to and from the heat pump Heat pump 5.7.1 Install pipe to the heat pump with solenoid fi lter ball valve. 5.7.2 Install pipes from heat pump. Install any adjustable by-pass coupling past the heat pump. (*a by-pass coupling is only used for electric operation without a heat pump).
Install waste water piping Waste water 5.8.1 Fit the safety valve, bleed valve and manometer. Components and assembly instructions are included in the additional pack for the product. 5.8.2 Install waste water piping. 5.8.3 The bleed valve is activated by loosening the bleeder screw, which should then be closed after a few minutes.
Fill the heating circuit Fill the heating circuit 5.9.1 Open the filling valve and fill the heating system. 5.9.2 Turn the safety valve to release air more quickly during filling; close the filling valve when the system is full. 5.9.3 Check the manometer for a filled cold system (approx.
5.10 Bleed the entire system Bleed the system 5.10.1 Bleed the CTC EcoZenith i360 valve using the safety valve, make sure also that the screw for the automatic bleed valve has been activated. 5.10.2 Bleed, activate bleed valve for heat pump. 5.10.3 Bleed high points for the radiator system.
6. Electrical installation Safety information (x 2) The following safety instructions must be observed when handling, installing and using the product: Turn off the power with an omnipolar switch before doing any work on the product. • The product is classified as IPX1. The product must not be rinsed with water.
Overview of basic electrical installation Basic installation includes: EcoZenith i360 CTC EcoZenith i360 1 heating circuit 1 heating system 1 CTC EcoAir heat pump in the 400, 1 heat pump in the CTC EcoPart 500 or 600 series 400 or 600 series In such cases, work flow points 1–6 can be used for electrical installation.
List of functions Function Relay card Sensor [B] Pump [G] Valve [Y] Other Basic installation (A2) (X2) B11, B15, (G5), (G11) COM HP – (B18), B103 HP A1* Return temp., installation without (A2) HP A1 Heating circuit 2 (A2) B2, B12 Ventilation (X2) Passive cooling...
6.13 Connection table for electrical components This table specifies the connections for components for the EcoZenith i360 relay card A2 or terminal board X2. (See also the wiring diagram). Connection Designation Option Card Terminal Wire block A1 – Display board Display COM A1 Patch...
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Connection Designation Option Card Terminal Wire block Heating circ. pump 1 Heating circ. pump 2 Brown Heating circ. pump 2 Yellow/green Heating circ. pump 2 Blue Circulation pump for hot water heat Brown exchanger Circulation pump for hot water heat Blue exchanger Circulation pump for hot water heat...
6.15 Connection table for Expansion Card A3 This table shows the connections for components for CTC EcoZenith i360 Extension Card A3. (See also the wiring diagram for the extension card). Designation Terminal block/ Designation Terminal block/ cable cable Display COM2 Pump, bore hole X6:10 recharging...
6.16 Sensor connection The sensor is connected on top of terminal X2, behind the magnetic strip. See the wiring diagram and connection table for correct connection. Sensor terminal block 6.16.1 Connection of outdoor sensor (B15) The sensor should be set up on the house’s northwest or north side, so that Do not attach it is not exposed to morning and evening sun.
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6.16.3 Installation of sensor on pipe The sensing part is towards the end of the sensor (see sketch). • Attach the sensor using the cable tie provided. • Ensure that the sensor makes good contact with the pipe. Apply contact paste to the front part of the sensor between the sensor and the pipe if good contact is otherwise difficult to obtain.
6.17 Current sensor connection A current sensor with three sensors is used for product models with 400V 3N~ 50Hz (3x400V) and 230V 3N~ 50Hz (3x230V) connections (see technical data). The three current sensors, one for each phase, are fitted on the fuse panel. Each phase from the electricity distribution board supplying the product is channelled through a current sensor before termination at the relevant Connect to sensor terminal block (see...
7. Installation Communication The back of the display unit has 3 communication ports. Menu: "Installer/Defi ne/Communication". Communication Display communication ports Port 1. RS485 port without galvanic protection. For external equipment, e.g. BMS, CTC AXS Define AXS: "Yes" permits BMS via the RS485 port and "CTC AXS"...
Install ethernet cable In order to define and enable connection to the network and app, an ethernet cable must be connected as described below. 1. Pull out the magnetic strip. It is secured with 2. Open the ferrite from the packaging, clamp around magnets.
CTC Remote - Screen Mirroring • Connect the ethernet cable, see previous page. • Installer/Define/Communication/Web – Yes. Permits the product to connect with unencrypted web traffic on local area networks. Internet router and firewall required. Tablet/Smartphone/PC as a touchscreen for local area network •...
8. First start CTC EcoZenith i360 can be installed and started before the ground source or air-to-water heat pump is put into operation. In order to use the product as electric boiler before a heat pump is installed, the installation engineer must connect the pipes to and from the heat pump (see the pipe installation section).
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First start Switch on the power using the safety switch, the display will turn on. The product will now ask the following: Select the language and press "OK". Confirm that the system is filled with water and press OK. Press "Next". The bleeding of DHW heat changers is then started for 10 minutes.
9. Operation and Maintenance The installation engineer together with the property owner must check that the system is in perfect operating condition. The installation engineer must show the switches, controls and fuses to the property owner so that the owner knows how the system works and how to service it.
10. Your home’s heating settings The House Heating Curve The heating curve is the central part of the product’s control system. It is the heating curve which determines the compensated flow temperature requirements for your property dependent upon the outdoor temperatures. It is important that the heating curve is correctly adjusted, so that you achieve the best operation and economy possible.
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Appropriate Default Values During installation you can seldom achieve a precise setting for the heating curve instantly. In this case, the values given below may provide a good starting point. Radiators with small heat-emission surfaces require a higher primary flow temperature. You can adjust the gradient (heating curve gradient) for your heating system under the "Installer / Settings / Radiator system"...
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Examples of Heating Curves You can see in the diagram below how the heating curve changes with different Inclination settings. The gradient of the curve shows the temperatures that the radiators require at different outdoor temperatures. Primary Flow Temperature Curve Inclination The inclination value which is set is the primary flow temperature when the outside temperature is –15 °C.
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Summer-time operation Primary Flow Temperature Heating All properties have internal heat gains (lamps, oven, ºC switched body heat, etc.), which means that the heating can be Heating up Heating up switched off when the outdoor temperature is lower than the desired room temperature. The better insulated the house is, the earlier the heating from the heat pump can be switched off.
11. System adjustments 11.1 Adjust circulation pump The charge pump/circulation pump speed for the radiator system is set depending on the system type. Make sure the flow through the heat pump is enough. The circulation pump is factory-set to 90%, and adjustable to [25–100%]. This can be changed in the display under “Installer/Settings/Heating circuit/Charge pump %”.
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Step 2 Check minimum heat pump flow To install an air-to-water heat pump, the flows shown below must be used even if step 1 gives a lower flow. CTC EcoAir 406 0,21 l/s CTC EcoAir 408 0,27 l/s CTC EcoAir 510,610, 614 0,21 l/s CTC EcoAir 622 0,39 l/s...
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If a CTC VT 80 volume tank is installed to increase flow, the flow between the heat pump and CTC VT 80 is calculated according to the flow below. CTC EcoAir 406 0,21 l/s CTC EcoAir 408 0,27 l/s CTC EcoAir 510, 610, 614 0,21 l/s CTC EcoAir 622 0,39 l/s...
11.4 Pressure differential for heating medium side The diagram below shows the total pressure differential for CTC EcoZenith i360 and the heat pump specified by the curve to the right of the diagram. Curves from the pump diagram on the previous page are added for reference. Pressure [kPa] Pressure [kPa] Curve for highest pump capacity...
11.5 Extra functions There are many types of installation are possible with CTC EcoZenith i360. Several options are described here. For pipe installation, see the full schematic diagram or select combinations in the schematic diagram on our website. 11.5.1 Volume tank/equalisation tank Connection options with volume tank, circulation pump (G1) and sensor (B1) The heating circuit is extended with: •...
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11.5.5 External Boiler Aim: added heat when the need for heating or hot water is at its highest in winter, and for hot water when the need for heating is low if this is permitted. The function allows additional heat sources to be connected to the heating circuit with lower priorities (costlier heat sources), e.g.
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System 2 System 2 is a system structure with solar heat connected to an external heat source tank (EHS tank) and an extra buffer tank (CTC VT 80 for example). The system allows for a larger solar collector surface since it carries a greater volume of water.
12. Control system 12.1 Navigate on the touchscreen Scroll & Swipe sideways Start menu Increase value Single click = Select Back Next Select and save Double click = Open Decrease Increase Decrease value value value 12.2 Start menu This menu is the system’s home screen. This provides an overview of the current operation data.
12.4 Heating/Cooling This is used to set the desired room temperature. Use the "Plus" and "Minus" buttons to set the desired temperature, i.e. the setpoint, which is shown in brackets. The actual value is shown in front of the brackets. If two heating circuits are installed, both are displayed.
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12.4.2 Outdoor sensor/room sensor errors If a fault occurs with an outdoor sensor, the product triggers an alarm and an outdoor temperature of -5 °C is simulated so that the house does not get cold. If a fault occurs with a room sensor, the product triggers an alarm and automatically switches to operating according to the set curve.
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12.4.4 Holiday You use this option to set the number of days that you want the set temperature to be consecutively reduced. For example, if you want to go on holiday. The value by which the temperature is lowered during the period is set in one of the following menus: When holiday is enabled, hot water production is stopped.
12.5 This menu is used to set the hot water comfort level and "Extra DHW". Extra DHW The "Extra DHW" function can be activated here. When the function is activated (by setting the number of hours using the plus sign in the "Hot Water" menu), the heat The "Extra DHW"...
12.7 Weekly program In a weekly program (designated "Program" in the display menus), the periods can be set for when a function should be active or inactive during the weekdays. The system does not allow certain functions to be active at the same time according to the same weekly program;...
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12.7.3 Editing a weekly program Go down to the first row and press "OK" to enable editing mode. Time Use the arrow keys to change the time (hours and minutes, respectively). Day by day Use the arrow keys (up arrow /down arrow) to mark active days in bold.
12.8 Operation data The screen shows operational data with the CTC EcoAir The screen shows operating information with the CTC EcoPart connected. When the pumps are in operation, the pump icons connected. When the pumps are in operation, the pump icons also rotate on screen.
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12.8.1 Operation data, Control unit Status Current charging mode, see table below. DHW tank °C (55) Displays the hot water temperatures in the upper and Menu Operation Data/Control Unit. lower parts of the tank. The value in brackets is the setpoint (stop temp.).
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12.8.2 Operation data, Heating circuit* Click on a heating circuit to see more detailed operation data in a new menu window. Status Heating Shows the operational status of the heating circuit. See "Operation data, heating circuit" menu. The menu shows the the table below.
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12.8.3 Operation data, Heat pump air-to-water Status Heat pump status, see table below. Model EcoAir M Shows the heat pump model. Compressor 65rps R Shows the compressor speed. "R" stands for "Reduced Mode" (for example, during "Silent Mode"). Menu: "Operation data, Heat pump". Charge pump Shows operating status of the charge pump ("On"...
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12.8.4 Operation data, Heat pump liquid-to-water Status Heat pump status, see table below. Model EcoPartM Shows the heat pump model. Compressor 65rps R (On/Off/rps) Shows whether the compressor is operating or not. Displays the compressor speed for speed-controlled heat pumps. "R" stands for "Reduced Mode". The menu shows detailed operation data of the selected heat pump.
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12.8.5 Stored Operation data This menu shows cumulative operation values. The operation values shown in the menu screenshots are only examples. The historical operational info presented varies depending on the language choice. Menu: "Stored Operation data". Total operation time h 3500 Shows the total time the product has been powered.
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12.8.6 Operation data, DHW Mode Comfort Shows the active DHW program (Economy/Normal/ Comfort). DHW tank °C (55) Shows the current temperature in the DHW tank and "Operation Data/DHW" menu. the setpoint (in brackets) for heat pump operation and during additional heat. DHW °C (50) Displays the DHW temperature and setpoint (in...
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12.8.7 Operation data, Diff thermostat function Status Shows whether charge pump (G46) is switched on (On/ Off). Temperature °C Menu: "Operation Data /Diff. thermostat function". External tank temperature at which charging starts. Measured by sensor B46. Target temp. °C External tank temperature at which charging stops. CTC EcoZenith i360...
Installer This menu contains four sub-menus: • Display • Settings • Define • Service Menu: "Installer". For "System Information", click the "i" button in the lower right corner of the screen in the "Installer" menu. This displays the product serial number, MAC address, and application and bootloader versions.
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12.9.2 Language Click a flag to select the language. The language selected is highlighted with a green square. To view more language options than those shown in the menu, scroll down the page, or press the down arrow key. Menu: "Installer/Display/Language". 12.9.3 Display setup Sleep delay...
12.10 Settings First define the desired functions, see "Installer/Define". Settings are only displayed for enabled functions. Settings can be made here for, among other things, the house’s heating and cooling needs. It is important that the basic heating setting is right for your home. Values which are set incorrectly may mean that your property is not warm enough or that an unnecessarily large amount of energy is being used to heat your property.
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Heat mode, schedule This menu bar is displayed if a weekly program has been defined for the "HC Heat Mode, ext." function in the remote control menu. For more information, refer to: • chapter "Weekly Program" for schedule setting. • section "Def. Remote Control" in chapter "Installer / Define"...
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Room temp. reduced, Night red. °C -2 (0...-30) Room temp. reduced, Holiday °C -2 (0...-30) The menus are displayed if room sensors are installed If room sensors are installed, for the heating circuit. The number of degrees by which the "Room temp lowered..." the room temperature should be lowered during remote- menu is displayed.
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Drying period mode Off (Off/1/2/3) Applies to Heating circuit 1. Drying period for newly built properties. The function limits the calculation of primary flow temperature (setpoint) for "Your home’s heating settings" to the schedule below. Mode 1 - Drying period for 8 days 1.
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12.10.2 Settings Heat pump Compressor Blocked (Permitted/Blocked) The heat pump is supplied with a blocked compressor. "Permitted" means that the compressor can start. Brine pump Auto (Auto/10 days/On) After installation is complete, you can choose to run the brine pump constantly for 10 days to remove air from the system.
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Max rps 100 (50...120) The maximum permissible speed of the compressor at "winter temperature". Sets the compressor’s maximum speed (R2) at outdoor temperature T2. Only applies to modulating air-to-water heat pumps. Ext. noise reduction rps 50 (20...120) Set the compressor speed value applicable for remote control.
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Cold temp limit 0 (0...-15) When the outdoor temperature is equal or lower (T2), the compressor speed is adjusted up to speed R2. Only applies to modulating air-to-water heat pumps. Warm temp limit 20 (0...20) When the outdoor temperature is equal or higher (T1), the compressor speed is adjusted down to speed R1.
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12.10.3 Settings Electric heater Max el. heater kW 9.1 (0.0...9.1) Here you select the power that the electric heater is permitted to provide. The setting range varies, see "Electrical data" in the chapter "Technical data". For language choices "German" and "French" the max electric power is factory set at 0.0 kW.
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Tariff EL schedule This menu bar is displayed if a "Schedule" is defined for the "Tariff EL" function in the "Installer/Define/Remote Control" menu. For more information, refer to: • chapter "Weekly Program" for schedule setting. • section "Def. Remote Control" in the "Installer / Define"...
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12.10.4 Settings DHW tank DHW program Available options are "Economy", "Normal" and "Comfort". Press ”OK” to open the settings for the selected DHW program. The factory settings shown below apply to "Normal" mode. Refer to the "Parameter List" chapter for the "Economy" and "Comfort" modes’ factory settings.
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SmartGrid Low price °C 10 (Off, 1...30) Setting to increase temperature at energy price "Low price", via SmartGrid. Both SmartGrid A and SmartGrid B must be defined in the remote control menu for this menu to be displayed. Read more in the "Def. Remote Control /SmartGrid A/B" section of the "Installer/Define"...
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Add. heat DHW Auto (Yes/No/Auto) “No” means that no electric heater or external boiler is used to produce hot water. “Auto” means that hot water is produced primarily by a heat pump. When the charging time is exceeded and the stop temperature is not reached by the heat pump, additional heating will be allowed during the next hot water heating cycle.
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12.10.5 Settings External Heat source (EHS) Charge start °C This is the minimum temperature required in the external heat source tank (B47) for the mixing valve to open and emit heat to the system. Stop diff ºC Temperature difference before charging stops from the additional heating source.
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12.10.7 Settings External Boiler Ext. Boiler-Mode Auto (Auto/On/Off) Mode for adjusting an external boiler. • Auto = adjusted as needed according to selected settings. • On = continuously active. • Off = mode in which the external boiler does not start, e.g., because there is no heat source available.
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Tariff ext. boiler No (Yes/No) This menu bar is displayed if an "Input" for remote control is defined for the "Tariff EL" function in the "Installer/Define/Remote Control" menu. "Yes" means the function can be activated via remote control. Read more in the "Installer/Define/Remote Control/Tariff EL"...
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12.10.8 Settings Cooling* Room temp. passive cooling °C 25.0 (10 or 18...30) This is used to set the desired room temperature for cooling. SmartGrid Low price °C 1 (Off, 1...5) These menu bars are displayed if room sensors are defined in the "Installer/Define/Passive Cooling" menu. Read more in the "Remote Control /SmartGrid"...
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12.10.9 Settings Communication Settings can be made here to control the product with a controlling system. 12.10.9.1 Ethernet DHCP Yes (Yes/No) "Yes" enables automatic connection to the network. If "No", custom router settings (IP address, Netmask and Gateway) as well as DNR setting must be made. Menu: "Installer/Settings/Communication".
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12.10.10 Settings Current sensor These menu bars are displayed if "Current Sensor" is defined in the "Installer/Define Current Sensor" menu. In the menu, specify the phases (L1, L2 and L3) to which the current sensors have been connected. In the lower left corner of the screen, "Invalid configuration"...
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12.10.12 Settings SmartGrid schedule This menu is used to schedule the weekday periods during which the "SmartGrid" functions should be active. This schedule is repeated every week. "SmartGrid" can be used to block a function ("SG Block") or to achieve a temperature increase during periods when the energy price is low ("SG Low") or ("SG Overcapacity").
12.11 Defi ne The "Define" menus specify which components and subsystems the system consists of. 12.11.1 Def. Remote control This chapter describes all remote control functions; how they are set up and how they are used. The "Installer/Define/Remote Control" menu defines how the remote control inputs should be activated by specifying one of the following three modes of activation in the "Input"...
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12.11.1.1 Setting the Remote control function, example 1. Define an "Input" First, an input must be assigned to the function or functions to be controlled remotely. This is done in the "Installer/Define/Remote Control" menu. In the example, terminal block K24 is selected as the input for the "HC1 Heat Mode, Ext."...
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12.11.1.2 Remote control functions The "Installer/Define/Remote Control" menu defines Inputs for current remote control functions: • Inputs K22, K23, K24, K25. • wireless accessories in the SmartControl series (Channel 1A, 1B, 2A, 2B, 3A, 3B and so on up to 7B).
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Extra DHW (Off/ K22-K25 /Channel 1A-7B / BMS DI0-7) Upon activation, production of extra DHW begins. When activation stops, extra DHW is produced for a run-on time of 30 min. The "Stop temperature" for extra DHW is set in the "Installer/Settings /DHW Tank/DHW program" menu.
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Tariff EL (Off/ K22-K25 /Channel 1A-7B / BMS DI0-7) This function is used to block the electric heater during periods when the electricity rate is higher. In the "Installer / Define/Remote Control" menu: • specify an "Input" for the remote control function. In the "Installer/Settings/Additional Heat"...
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SmartGrid A / SmartGrid B (Off/ K22-K25 /Channel 1A-7B / BMS DI0-7) In the "Installer / Define/Remote Control" menu: • specify an "Input" for the remote control function. There are three SmartGrid functions: • SmartGrid Low Price • SmartGrid Overcapacity •...
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SmartGrid functions are enabled by activating the K22 (SG A) K23 (SG B) Function SmartGrid inputs in different ways according to the table Open Open Normal on the right. Open Closed Low price To enable the SmartGrid function "SG Low Price" Closed Closed Overcapacity...
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HP Noise reduction (Off/ K22-K25 /Channel 1A-7B / BMS DI0-7) This function can be used to reduce compressor speed in order to reduce the noise level. In the "Installer / Define/Remote Control" menu: • specify an "Input" for the remote control function. In the "Installer / Define/Heat Pump"...
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12.11.2 Def. heating circuit Heating circuit 1-* Yes (Yes/No) Heating circuit 1 (HC 1) is predefined. The rows under Heating Circuit 1 show the other definable heating circuits (HC 1-2 in the example). Room sensor Yes (Yes/No) Select "Yes" if room sensors should be connected to the heating circuit.
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12.11.3 Def. Heat pump Heat pump Off (On/Off) Select whether the heat pump should be On or Off. Flow/level switch None (None/NC/NO) This menu bar is displayed if an "Input" for remote control is defined for the "Flow/level switch" function in the "Installer/Define/Define Remote Control"...
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12.11.5 Def. DHW Extra DHW ext. config. None(None/NC/NO) This menu defines the Normally Open (NO) or Normally Closed (NC) mode for the external control signal when remotely controlling the function. For examples of normal mode settings, refer to the "Def. Remote Control" section of the "Installer / Define" chapter.
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12.11.8 Def. Passive cooling Free cooling is adjusted using primary flow sensor 2 (B2), which then means that heating circuit 2 and cooling cannot be used simultaneously. Passive cooling Yes (Yes/No) "Yes" means that passive cooling is used. Common Heating and Cooling No (Yes/No) "Yes"...
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12.11.9 Def. SMS Activate No (Yes/No) If "Yes" is selected, the menus below are displayed: Level of signal The signal strength of the reception is shown here. Phone Number 1 The first activated phone number is shown here. Phone Number 2 Menu: "Installer / Define / SMS".
12.12 Service NB: This menu is intended for the installer only. Menu: "Installer/Service". 12.12.1 Function test From this menu, the installer can test the connection and function of separate components of the heating circuit. When this menu is activated, all control functions are stopped.
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12.12.1.2 Test Heat pump HP Compressor Off (On/Off) When the compressor is being function tested, the brine and charge pump are also operating so that the compressor does not trigger its pressure switches. HP Brine Pump/Fan Off (Off/On) Function test brine pump or fan (air-to-water heat pump).
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12.12.1.5 External test (Diff Thermostat/ EHS/External boiler) Pump (G46) Off (On/Off) Function test of charge pump for EHS. Mixing valve (Y41) Close ( - /Close/Open) Function test of mixing valve for EHS. Mixing valve (Y42) Close ( - /Close/Open) Function test of mixing valve for External Boiler. Menu "Installer/Service/Diff thermostat function".
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12.12.2 Alarm log In the alarm log, up to 500 alarms can be displayed at the same time. An alarm which reoccurs within an hour is ignored so as not to fill up the log. Click an alarm row to see more information about an alarm.
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12.12.4 Settings coded This menu is intended to set the manufacturer’s operational and alarm limits. A 4-digit code must be specified to be able to amend these limits. However, you can also look without any code to see what options feature in the menu.
13. Troubleshooting 13.1 Troubleshooting, heat Problem Cause Action The information message “High curr., reduced elec. The current monitor limits (X A)” is shown. An electrician can adjust the load of the heat pump power the three phases or change the fuse size. Check that the power is not limited by the current monitor/excessively high current in the house.
13.2 Troubleshooting, hot water Cause Action Check pre-pressure in the expansion tank with a pressure gauge. Incorrect pressure in system 0.5–0.6 bar. Fill the heating system; pressure should increase to approx. 1–1.5 bar. Bleed the tank, turn the safety valve. Bleed the tank, check that the automatic bleeder on the tank works.
13.3 Information messages Information messages are displayed when appropriate and are intended to inform users about various operational situations. [I002] HC1 Heating off [I014] Drying period active, d Indicates that the floor function is active and displays the [I005] HC2 Heating off time (days) remaining that the function will be active.
13.4 Alarm messages If a fault occurs with e.g. a sensor, an alarm is triggered. A message appears on the display with information about the fault. You reset the alarm by pressing the Reset Alarm button on the display. If several alarms are triggered, they are displayed one after the other.
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Alarm messages Description [E049] Stop, high evap. exp. This message appears when the expansion valve’s evaporation temperature is high. valve Press reset and check whether the alarm recurs. If the fault recurs, contact your installer. [E050] Stop, low overheat. exp. This message appears when the expansion valve’s overheat temperature is low.
14. Factory settings Designation Factory Min value Max value Alternative Set during setting Installation Heating circuit Max primary flow °C Min primary flow °C Heating, mode Auto Auto On Heating mode, ext Auto On Heat off, outside °C Heating off, time Inclination °C Adjustment °C Night reduction off °C...
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Designation Factory Min value Max value Alternative Set during setting Installation Hot water (DHW tank) DHW program Normal Economy Comfort Start/stop diff upper ºC Max time DHW Charge pump % Additional heat DHW Smart low price. °C Smart over capacity °C Min rps DHW charging Run time DHW circ.
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