CTC Union EcoZenith i350 L Installation And Maintenance Manual
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CTC Union EcoZenith i350 L Installation And Maintenance Manual

Ecozenith i350 series indoor module with heat pump control
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162 205 22-2
2017-11-14
Providing sustainable energy solutions worldwide
Installation and Maintenance Manual
CTC EcoZenith i350
Indoor module with heat pump control
IMPORTANT
READ CAREFULLY BEFORE USE
KEEP FOR FUTURE USE

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  • Page 1 162 205 22-2 2017-11-14 Providing sustainable energy solutions worldwide Installation and Maintenance Manual CTC EcoZenith i350 Indoor module with heat pump control IMPORTANT READ CAREFULLY BEFORE USE KEEP FOR FUTURE USE...

  • Page 2: Important! Information On Air Bleeding

    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.

  • Page 3: Table Of Contents

    Table of Contents 10.5 Extra functions Important! Information on air bleeding ______________________________________________ ______________________ 11. Touchscreen Technical data _______________________________________________________ ______________________________________________________ 11.1 Menu overview Measurements and connections ______________________________________________ ________________________ 11.2 Component description menus Overview of CTC EcoZenith i350 ________________________ ________________________ 11.3 Home Screen Compatible heat pumps _______________________________________________ ___________________________________...
  • Page 4 CTC EcoZenith i350...

  • Page 5: Safety Instructions

    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.

  • Page 6: Technical Data

    Technical data Designation CTC EcoZenith CTC EcoZenith CTC EcoZenith CTC EcoZenith i350 L i350 H i350 L 1x230V i350 L 3x230V General data Article number 587800001 587803001 587801001 587802001 7333077000806 7333077000837 7333077000813 7333077000820 Gross weight Net weight Dimensions WxDxH (with 700x768x1825 700x768x2090 700x768x1825...

  • Page 7: Measurements And Connections

    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...

  • Page 8: Overview Of Ctc Ecozenith I350

    3. Overview of CTC EcoZenith i350 The picture below shows the basic construction of CTC EcoZenith i350. 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.

  • Page 9: Compatible Heat Pumps

    Compatible heat pumps CTC EcoAir 500M series CTC EcoAir 400 series CTC EcoPart 400 series speed-controlled air-to-water air-to-water fluid-to-water • CTC EcoAir 510M • CTC EcoAir 406 • CTC EcoPart 406 • CTC EcoAir 520M • CTC EcoAir 408 • CTC EcoPart 408 •...

  • Page 10: Delivery Includes

    Delivery includes • CTC EcoZentith i350 • Installation and Maintenance Manual • Enclosed components (list and image below show additional pack for CTC EcoZenith i350). Designation Quantity Outdoor sensor 1/1/1/1 Room sensor 1/1/1/1 Safety valve 2.5 bar 3/4" ext. 1/1/1/1 Support sleeve 22x1 4/5/4/4 Filter ball valve with magnet...

  • Page 11: Important To Remember

    4. Important to remember! Check the following in particular on 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.

  • Page 12: Pipe Installation

    5. Pipe installation The installation must be carried out in accordance with the applicable standards. Do not forget to flush the heating circuit clean before connecting.Apply all the installation settings based on the description in the section entitled “First start”. In order to adjust the pre-pressure in the expansion tank and check the pipe connectors before first start, the front must be dismantled by loosening two screws on the top of the front plate and lifting the front plate up and...
  • Page 13 Schematic diagram, basic installation of CTC EcoZenith i350 for fl uid-to-water heat pump CTC EcoZenith i350 1 heating circuit 1 compatible heat pump in the EcoPart 400 series CTC EcoZenith i350...

  • Page 14: Full Schematic Diagram Ctc Ecozenith I350

    Full schematic diagram CTC EcoZenith i350 In addition to This is a full schematic diagram for CTC EcoZenith i350 connection options. basic installation Different installations and systems may look different, e.g. a one or two-pipe system, which means that the finished installation may be different. Heating System 1 Heating System 2 Equalisation tank Volume tank...
  • Page 15 Solar Energy mixing valve diverting valve control valve solenoid valve non-return valve Cooling shut-off valve sensor External storage pump tank (diff thermostat) dirt i lter pressure sensor safety valve level vessel Filler manifold Collector, in expansion tank Collector, out heat exchanger CTC EcoZenith i350...

  • Page 16: Install Hot Water Pipe

    Install hot water pipe • Install dirt filter (1) • Install cold water supply (2) with non-return valve • Install filling valve (3) • Install hot water pipe from tank (4) Check function – flush plate heat exchanger hot water charge pump High version NB: To facilitate...

  • Page 17: Install Pipe For Radiator System

    Install pipe for radiator system Radiator system 5.6.1 Install primary l ow with shut-off valve 5.6.2 Install return line 4.6.2 4.6.1 return to radiator system primary flow to radiator system filling valve diverting valve DHW/HS electric flow heater circulation pump adjust expansion tank pressure 4.6.1.
  • Page 18 5.6.3 Adjust the pre-assembled expansion tank to the right pre-pressure by using the valve to raise or lower the pressure. Adjusting 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 system pressure must be set 0.3 bar higher than the pre-pressure in the expansion tank.

  • Page 19: Install Pipes To And From The Heat Pump

    Install pipes to and from the heat pump Heat pump 5.7.1 Install pipe to the heat pump with solenoid i lter ball valve 5.7.2 Install pipe from the heat pump Install any adjustable bypass coupling past the heat pump. (*for electrical operation only without a heat pump, bypass coupling is performed) 4.7.2 * without a heat pump,...

  • Page 20: Install Waste Water Piping

    Install waste water piping Waste water 5.8.1 Fit the safety valve, vent 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 vent valve is activated by loosening the bleeder screw, which should then be closed after a few minutes.

  • Page 21: Fill The Heating Circuit

    Fill the heating circuit Fill the heating circuit 5.9.1 Open the i lling valve and i ll the heating circuit 5.9.2 Turn the safety valve to release air more quickly when i lling; close the i lling valve once the system is full. 5.9.3 Check the manometer for a i lled cold system (approx.

  • Page 22: Bleed The Entire System

    5.10 Bleed the entire system Bleed the system 5.10.1 Bleed the CTC EcoZenith i350 valve using the safety valve; make sure also that the screw for the automatic vent valve has been activated. 5.10.2 Bleed, activate vent valve for heat pump 5.10.3 Bleed high points for the radiator system 5.10.4 Flush the hot water system 4.10.1...

  • Page 23: Electrical Installation

    6. Electrical installation Safety information 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.

  • Page 24: Extra Low Voltage Protection

    Supply The power supply cable is connected at (1). Length 200 cm. The group fuse is selected such that all relevant requirements for the electrical installation are met; see technical data. The size of the fuse is set in the installation flow on the touchscreen. The product adjusts the electrical power to this.

  • Page 25: Overview Of Basic Electrical Installation

    Overview of basic electrical installation Basic installation includes: CTC EcoZenith i350 CTC EcoZenith i350 1 heating circuit 1 heating circuit 1 heat pump in the CTC EcoAir 400 1 heat pump in the CTC EcoPart or 500 series 400 series In such cases, work flow points 1–6 can be used for electrical installation.

  • Page 26: List Of Functions

    List of functions Function Relay card Sensor [B] Pump Valve [Y] Other Basic installation (A2) (X2) B11, B15, (B18), (G5), COM HP B103 (G11) – HP A1* Return temp., installation without (A2) HP A1 Heating System 2 (A2) B2, B12 Ventilation (X2) Cooling...
  • Page 27 CTC EcoZenith i350...

  • Page 28: Electrical Parts List

    Electrical parts list Designation Spec Designation Spec Display Circulation pump for hot water coil Relay/main card Charging pump Expansion card Circulation pump, pool Gateway heating Primary flow sensor 1 NTC 22K Contactor 1 Primary flow sensor 2 NTC 22K Flexible remote control/Smart Sensor, hot water tank NTC 22K Grid...
  • Page 29 CTC EcoZenith i350...

  • Page 30: Wiring Diagram, Ctc Ecozenith I350 3X400V

    Wiring diagram, CTC EcoZenith i350 3x400V CTC EcoZenith i350...
  • Page 31 Connections for option Connect option for extra functions Accessories Pos. Ext Boiler Ext Boiler 1) temp. sensor G67/G68 temp. sensor valve 2) valve A27/A28/A29 CTC EcoZenith i350...

  • Page 32: Wiring Diagram, Ctc Ecozenith I350 1X230V

    Wiring diagram, CTC EcoZenith i350 1x230V CTC EcoZenith i350...
  • Page 33 Connections for option Connect option for extra functions Accessories Pos. Ext Boiler Ext Boiler 1) temp. sensor G67/G68 valve 2) valve A27/A28/A29 CTC EcoZenith i350...

  • Page 34: Wiring Diagram, Ctc Ecozenith I350 3X230V

    Wiring diagram, CTC EcoZenith i350 3x230V CTC EcoZenith i350...
  • Page 35 Connections for option Connect option for extra functions Accessories Pos. Ext Boiler Ext Boiler 1) temp. sensor G67/G68 valve 2) valve A27/A28/A29 CTC EcoZenith i350...

  • Page 36: Connection Table For Electrical Components

    Connection table for electrical components This table specifies the connections for components for CTC EcoZenith i350 relay card A2 or terminal board X2. See also the wiring diagram. Connection Designation Option Card Terminal Cable block A1 – Display board Display COM A1 Patch Gateway (option CTC SmartControl)
  • Page 37 Connection Designation Option Card Terminal Cable block External alarm No External alarm External alarm Alarm External alarm Alarm Radiator pump 1 Radiator pump 2 Brown Radiator pump 2 Yellow/ green Radiator pump 2 Blue Circulation pump for hot water heat exchanger Brown Circulation pump for hot water heat exchanger Blue...

  • Page 38: Wiring Diagram For Expansion Card

    Wiring diagram for expansion card Accessories Pos. Ext Boiler 1) temp. sensor G67/G68 2) valve A27/A28/A29 CTC EcoZenith i350...

  • Page 39: Connection Table For Expansion Card A3

    Connection table for expansion card A3 This table shows the connections for components for CTC EcoZenith i350 expansion card A3. See also the wiring diagram for the expansion card. Designation Terminal block/ Designation Terminal block/ cable cable Display COM2 Pump, bore hole X6:10 recharging Relay/main card...

  • Page 40: Sensor Connection

    6.10 Sensor connection Sensors should be connected on the top cover, behind the product cover. See the wiring diagram and connection table for correct connection. Connect the sensors on the top cover of the product, behind the top trim. Do not attach the Sensor terminal block sensor cable perma- nently until you have...
  • Page 41 6.10.3 Attaching the sensor to the pipe The sensing part is towards the end of the sensor (see sketch). • Attach the sensor using the tie strap 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.

  • Page 42: Current Sensor Connection

    6.11 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...

  • Page 43: Resistance Table For Sensor

    6.13 Resistance table for sensor [°C] NTC 22K [Ω] NTC 150 [Ω] NTC 015 WF00 [Ω] 1027 1167 1330 1522 1746 2010 2320 2690 3130 3650 4280 5045 5960 7080 8450 10130 12200 5830 14770 6940 18000 8310 22000 10000 27100 12090 33540...

  • Page 44: First Start

    7. First start CTC EcoZenith i350 can be installed and started before the bedrock/ ground source or air/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).
  • Page 45 First start Close the omnipolar switch for the product. The display will switch on. The product will now ask the following: 1. Select the language and push OK. 2. Coni rm that the system is i lled with water and press OK. 3.

  • Page 46: Operation And Maintenance

    8. 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. Bleed the radiators after approximately three days of operation and fill with more water as needed using the filling valve if the manometer shows that the system pressure is too low.
  • Page 47 Boiler and heating circuit bleeding/safety valve Check around four times a year that the valve is working correctly by manually turning the control. Check that there is water and not air coming out of the waste pipe; if air is coming out then the tank will need to be bled. Open the screw on the automatic bleeder for the first few months;...

  • Page 48: Your Home's Heating Settings

    9. 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 that determines the compensated flow temperature requirements for your property depending on the outdoor temperatures. It is important that the heating curve is correctly adjusted so that you can achieve the best operation and economy possible.

  • Page 49: Adjusting The Heating Curve

    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 circuit in the Installer/Settings/ Heating circuit menu.
  • Page 50 Examples of heating curves You can see in the diagram below how the heating curve changes with different Inclination and Adjustment settings. The gradient of the curve shows the temperatures that the radiators require at different outdoor temperatures. Primary Flow Temperature Inclination The inclination value that is set is the primary flow temperature when the outside temperature is –15 °C.
  • Page 51 Summertime operation Primary Flow Temperature Heating All properties have internal heat gains (lamps, oven, ºC switched off body heat, etc.), which means that the heating can be Heating 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.

  • Page 52: System Adjustments

    10. System adjustments 10.1 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 sufficient. 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 %.
  • Page 53 Step 2 Check minimum heat pump low 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 0.21 l/s CTC EcoAir 520 0.39 l/s...
  • Page 54 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 0.21 l/s CTC EcoAir 520 0.39 l/s...

  • Page 55: Pump Curve For Heating Medium System Circulation Pump

    10.2 Pump curve for heating medium system circulation pump UPMXL GEO 25-125 130 PWM, 1 x 230 V, 50/60 Hz [kPa] ≤ ≤ ≤ Q [m³/h] Q [l/s] Q [m³/h] Electrical data Electrical data, 1 x 230 V, 50 Hz Electrical data, 1 x 230 V, 50 Hz Speed Speed...

  • Page 56: Pressure Differential For Heating Medium Side

    Approx. 70% for PWM signal to charge pump may be a suitable setting. Product Product Product value value value CTC EcoZenith i350 L CTC EcoAir 510M CTC EcoPart 406 CTC EcoZenith i350 H CTC EcoAir 520M CTC EcoPart 408 CTC EcoAir 406...

  • Page 57: Extra Functions

    10.5 Extra functions There are many types of possible installation with CTC EcoZenith i350. Several options are described here. 10.5.1 Volume tank/equalisation tank Connection options with volume tank, circulation pump (G1) and sensor (B1) The heating circuit is expanded with •...
  • Page 58 10.5.4 External heat source (EHS) This function is used to connect additional heat sources to the heating circuit, e.g. water-jacketed stove, solar heat. The heat from the external heat source is diverted into the system when the set temperature in the external tank is reached, and is at least 5°C higher than the setpoint in the radiator system.
  • Page 59 10.5.8 Solar heat (accessory) Solar heat is connected to the system through an external heat source tank (EHS-tank). The number of solar panels which can be connected depends on the volume of water in the product/tanks to which the solar panels are to be connected. System 1 System 1 is a system structure with solar heat going directly to an external heat source tank (EHS-tank).

  • Page 60: Touchscreen

    11. Touchscreen 11.1 Menu overview Night reduction heat circ. Start menu Weekly program Day by day Monday 22 - 24 -- - -- Tuesday 00 - 06 -- - -- CTC EcoZenith i350 Monday 09:35 -- - -- -- - -- Wednesday -- - -- -- - --...
  • Page 61 Installer Time Language Stored oper data Total operation time h: 14196 Max primary flow °C: Electric Heating kWh Compressor: Settings Heating circuit 1 Total operation time 1540 Heating circuit 2 Heat pump Electric heater DHW-tank Communication Compressor Cooling Solar panels Compressor Diff thermostat function Charge pump On 47%...

  • Page 62: Component Description Menus

    11.2 Component description menus All settings can be configured directly on-screen using the easy-to-read control panel. The large icons function CTC EcoZenith i350 Monday 09:35 as buttons on the touch display. Operational and temperature information is also Installer displayed here. 11.3 Home Screen This menu is the system’s home screen.

  • Page 63: Room Temp

    11.4 Room temp. Room temp. Heating circuit 1 This is used to set the desired room temperature. Use the plus and minus buttons to set the temperature you want. The “setpoint” temperature is given in brackets. You can see the current value next to the brackets. If two heating circuits are installed, the values for both Night reduction Holiday...
  • Page 64 11.4.3 Night reduction in temperature Night reduction heat circ. Weekly program Day by day Monday 22 - 24 -- - -- 00 - 06 -- - -- Tuesday -- - -- -- - -- Wednesday You use this menu to activate and set a reduction in Thursday -- - -- -- - --...

  • Page 65: Dhw

    11.5 Extra Hot water hours You can use this to set the hot water comfort level you Temperature want and temporary extra hot water. Normal Temperature These settings apply to the product’s normal operation. There are three modes: Weekly schedule Weekly program Economic –...

  • Page 66: Operation

    11.6 Operation Operation data system This menu displays current temperatures and the operational data for your heating system. The image shows the input and output temperatures from the heat pump (if this is installed and defined in CTC EcoZenith i350). Return heating system (accessory) At the right of the heat pump (42°C) the temperature The screen displays operational information with CTC EcoAir...
  • Page 67 11.6.1 Operation CTC EcoZenith i350 Operation data Status DHW tank °C 49/ 45 (55) DHW ºC 54 (55) Stored oper data Degree minute -1000 Electric power kW This menu displays current temperatures and Current L1/L2/L3 Diff func. Pump/ ºC Off 30 operational data.

  • Page 68: Stored Operation Data

    Diff func. Pump/ ºC Off/On /30 Differential thermostat function. Shows whether the charge pump from the external tank is turned on. Also displays the temperature in the external tank. Pool ºC 19 (22) Displays pool temperature and setpoint (in brackets). DHW circulation Off/On Shows whether the DHW circulation pump is turned on.
  • Page 69 11.6.3 Compressor Compressor Compressor Charge pump On 47% Brine pump/Fan HP in/out °C 35.5 / 42.3 This menu is intended for servicing and advanced Outdoor Defrost timer 25.1 troubleshooting. Current A Compressor (On/Off /65 rps) Shows whether the compressor is operating or not, as well as showing the compressor speed in rps (revolutions per second).
  • Page 70 11.6.4 Operation data heating Operation data heating Primary flow 1 ºC 37 (38) Return flow ºC Radiator pump Primary flow °C Primary flow 2ºC 37 (38) Shows the temperature supplied to the system’s Radiator pump 2 Mixing valve 2 Open radiators, along with the temperature which the system is trying to achieve.
  • Page 71 11.6.6 Operation data, solar panels Operation solar panels This menu displays current temperatures and operating Status: Heating Charging EHS-tank data for your solar collectors. The menu is only shown if Solarpanel In/Out °C 65/70 EHS-tank ºC (B47) solar collectors are defined. EcoTank (B41)(B42) °C 72 / 50 X-volym (B41)(B42)°C...
  • Page 72 Energy output/24 h (kWh) Shows the amount of energy absorbed in the last 24 hours. If heat is taken from the tanks (e.g. if a panel is being protected against frost), negative energy is calculated. During bore hole recharging no useful energy is calculated.

  • Page 73: Installer

    11.7 Installer Installer This menu contains four sub-menus. Time/Language, Settings, Define system and Service. Time/Language Settings Define system Service Time/Language includes time and language settings for your product. Software display PCB: 20120205 Software HP PCB: 20120125 Settings are used both by the installer and users to set up the system.
  • Page 74 11.7.1 Settings Settings This menu is used to set the parameters for your Heating circuit 1 Heating circuit 2 home’s heating requirements. It is important that this Heat pump Electric heater basic setting is right for your home. Values which are DHW-tank set incorrectly may mean that your property is not warm Communication...
  • Page 75 Heating mode Auto/On/Off Switching of heating season or summer season can take place automatically (auto) or a selection can be made here to set the heating to be on or off. Auto = the switch between heating season (On) and summer mode (Off) takes place automatically On = (not summer mode) = Continuous heating season, There is no radiator pump...
  • Page 76 Room temp reduced (°C) -2 (0 to -40) “Room temp reduced” is displayed if a room sensor is installed. This setting defines how many degrees the room temperature will be reduced by during the various scheduled reduction periods, e.g. Night reduction, Holiday, etc.
  • Page 77 Drying period mode Off (Off/1/2/3) Floor drying function 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 Floor drying function for 8 days. #1. The (setpoint) for the heating circuit is set to 25ºC for 4 days.

  • Page 78: Heat Pump

    11.8 Heat pump Heat pump Compressor Permitted/Blocked Compressor: Permitted Stop at outdoorºC The product is supplied with the compressor set to Brine pump on Auto Tariff HP blocked, since the heat pump is connected. Since the Smart block HP Start at degree minute compressor in the heat pump is blocked, the product HS<->DHW time (sec) HS<->DHW time (sec)
  • Page 79 Max RPS (R2 RPS) 100 (50 to 100) Heat pump Sets the maximum permitted compressor speed. << Max RPS warm temp Max RPS warm temp (R1 RPS) Max RPS silent mode Timer Silent mode Maximum compressor power in warm weather. Sets Cold temp limit Warm temp limit the maximum speed of the compressor at outdoor...

  • Page 80: Electric Heater

    11.9 Electric heater Electric heater Max el. heater kW 9.0 (0 to 11.9) Max el. heater kW Max el. heater DHW kW Maximum permitted output from electric immersion Start at degree minute -500 heater. Diff step, degree minute Main fuse A Max el.

  • Page 81: Dhw Tank

    11.10 DHW tank DHW tank DHW program DHW program Start/stop diff. upper °C Settings menus for the Economy, Normal and Max. time DHW Charge pump % Comfortprograms. Refer to the DHW Program Settings Smart low price ºC section. Smart overcapacity Min.
  • Page 82 Additional heating No (Yes/No) No means that no immersion 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.

  • Page 83: Communication

    11.11 Communication These settings are activated for the accessory’s superior systems and are not used in normal operation. They are not described in these instructions. 11.12 Cooling Cooling Cooling is adjusted using primary flow sensor 2 (B2), Common Heating and Cooling which means that heating circuit 2 and cooling cannot Condense Secured? Room temp cooling...

  • Page 84: Solar Panels (Accessories)

    11.13 Solar panels Set solar panels (accessories) Solar basic settings Panel protection The settings needed for the solar heating system to EHS-tank X-volume function optimally are entered here. It is important that Recharging of bedrock this default setting is adjusted for your heating system. Charging EHS-tank Incorrectly set values may lead to the intended energy saving being lower.
  • Page 85 Prioritise charging of: External heat source/X-volume This is where you indicate whether the tank for the external heat source or the X-volume (acc. tank) should be prioritised when charging (shown only if alternate charging has been defined). Flow l/min 6.0 (0.1 to 50.0) The flow circulating through the solar collectors should be indicated here.
  • Page 86 -Active at panel temp. °C -25 (-30 to -7) This specifies the temperature in the solar collector at which the frost protection starts. When the panel sensor shows a temperature below the frost protection limit, the charge pump starts until the sensor temperature is 2 degrees warmer than the limit value (temperature difference 2°C).
  • Page 87 11.13.5 Settings X-volume X-volume Settings applicable when X-volume is activated. Charge temperature °C Maximum tank temp °C This is also called system 3. Charge temperature °C 60 (10 to 95) The maximum permitted temperature is set in the X-volume. Charging stops once the set temperature has been reached.

  • Page 88: Diff Thermostat Function (Accessory)

    11.13.7 Charging EHS-tank Charging EHS-tank This function concerns charging conditions between Charge start diff temp °C EcoTank and EHS-tank in solar system 2. Charge stop diff temp °C This function CANNOT be combined with the “Diff Charge tank temp °C thermostat function”.

  • Page 89: Pool (Accessory)

    11.15 Pool (accessory) Pool Pool temp ºC 22 (5 to 58) Pool temp °C Pool diff °C The pool temperature is set in this menu. Max time Pool Charge pump % Pool diff ºC 1.0 (0.2 to 5.0) Smart low price ºC Smart overcapacity ºC The permitted difference between the start and stop Min RPS...

  • Page 90: Ext Boiler

    11.17 Ext Boiler Set. External boiler Ext. Boiler mode Auto (Auto/On/Off) Ext. Boiler-Mode Auto Boiler start outtemp Mode for adjusting an external boiler. Delay stop ext boiler Boiler, open mix.valve ºC Auto = adjusted as needed according to selected Stop diff °C Start boiler, degree minute -300 settings.

  • Page 91: Deine System

    11.18 Defi ne system Define system Heating circuit 1 Heating circuit 2 Heatpump You can use this option to define your heating circuit CTC SMS Cooling and how it is controlled, with or without a room sensor. Solar panels Diff thermostat function The heat pump’s flow switch is defined.
  • Page 92 11.18.1 Defi ne SMS (accessory) Def CTC SMS This is for defining whether SMS control is installed Activate (accessory). Level of signal Phone Number 1 +46712345678 Activate Yes (Yes/No) Phone Number 2 ----------------- If “Yes”, the menus below will be displayed. Hardware Version Software Version Level of signal...
  • Page 93 11.18.10 Defi ne input voltage 11.18.4 Defi ne Diff thermostat function (accessory) Input voltage 3x400 (1x230/3x230) The input voltage can be changed here. Specify here whether the diff thermostat function is to be used in the system. 11.18.11 Defi ne CTC EcoVent Diff thermostat function No (No/Yes) (accessory)

  • Page 94: Deine Remote Control

    11.19 Defi ne remote control The remote control function in CTC's products provides a wide range of opportunities to adjust the heating externally. There are four programmable inputs that can activate the following functions: • Heat pump tariff • Heating off, HS2 •...
  • Page 95 Activate/select function. Heating circuit When an input is assigned, the function must Max primary flow ºC be activated or set in the Settings menu. Min primary flow ºC Heating, mode Auto Heating, mode, ext In the example with remote controlled “Heating, Heating off, out ºC Heating off, time ext.

  • Page 96: Smart Grid

    Flow/level switch In some cases, extra protection is required due to local requirements or provisions. For example, the requirement in some areas is for the system to be installed within a water catchment area. The pressure/level switch is defined in the Installer/Define system/Def. heat pump menu. If there is a leak, the compressor and brine pump stop and the Flow/level switch alarm appears on the display.
  • Page 97 Procedure: Smart low price ºC 1 (Off, 1-5 ) First of all, Smart A and Smart B are assigned a separate input in the Smart overcap. ºC 2 (Off, 1-5 ) Advanced/Define/Define Remote Control menu. Activation then takes place based on the terminal blocks' closure and *DHW tank has setting range 1–30 settings for each function.
  • Page 98 Low price mode: (A: Open, B: Closed). • With room sensor: Room temp. (setpoint) increased by 1°C (Factory setting, Smart low price °C) • Without room sensor: Primary flow (setpoint) increased by 1°C (Factory setting, Smart low price °C) • DHW tank: Setpoint increased by 10°C (Factory setting, Smart low price °C) •...

  • Page 99: Service

    11.22 Service Service Function test Alarm log Factory settings coded Quick start compressor. Software update, USB NB: This menu is intended for the Write log to USB installer only. Control current sensors Re-installation 11.22.1 Function test This menu is intended to test the function of the various components in the product.
  • Page 100 11.22.2 Test heat pump Test Heat pump Function test carried out on the heat pump. HP Compr. HP Compr. HP Brine p HP Charge p Compressor On/Off. This is where the function test is carried out on the compressor. The brine pump and charge pump are also operating so that the compressor will not trigger its pressure switches.
  • Page 101 11.22.4 Test Solar (accessory) Function test This function will only work if an expansion card Solar panel pump (G30) accessory (A3) is connected to the product. Heatexchanger pump (G32) Bedrock (Y31/G31) Tank Pump EHS (G46) Solar panel pump (G30) % (0 to 100) Valves 2 tanks (Y30) EHS-tank...
  • Page 102 11.22.5 External test (Diffthermostat/ External EHS/External boiler) Pump (G46) Pump (G46) (On/Off) Mixing valve (Y41) Mixing valve (Y42) Function test of charge pump for EHS. Ext. Boiler Temperatures: EHS-tank ºC (B47) Mixing valve (Y41) ( - /Open/Close) Diff thermostat ºC (B46) Function test of mixing valve for EHS.
  • Page 103 Testing EcoVent (accessory) Alarm log HP EcoVent Latest alarm: Time HP (b) LP (b) SH (K) I(A) Low brine flow 07:20 6/3 15.9 Testing the CTC EcoVent ventilation product. For more Stored alarms: Phase order 10:30 1/3 27.9 -227 50.0 information, please refer to the CTC EcoVent manual.
  • Page 104 Quick start compressor When starting up the product with heat pump installed, the compressor start is normally delayed by 10 minutes. When quick start compressor is activated, the compressor will start up more quickly. NB: The power to the product must not be interrupted, under any Software update, USB circumstances, during the update...
  • Page 105 CTC EcoZenith i350...

  • Page 106: Troubleshooting

    12. Troubleshooting 12.1 Troubleshooting, heat Problem Cause Action The information message “High current, elpower redu 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 Insufficient power...

  • Page 107: Troubleshooting, Hot Water

    12.2 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;...

  • Page 108: Information Messages

    12.3 Information messages Information messages are displayed when appropriate and are intended to inform users about various operational situations. [013] Start delay [I002] Heating off, heating sys. 1 [I005] Heating off, heating sys. 2 Indicates that the product is in Summer mode. No need for heating in the current heating system, only hot water.

  • Page 109: Alarm Texts

    [I013] Start delay The compressor is not allowed to start too quickly after it has stopped. The delay is usually at least 10 minutes. [I014] Floor function active, d Indicates that the floor function is active and displays the time (days) remaining that the function will be active.
  • Page 110 Alarm messages Description [E035] High pressure switch The refrigerant’s high pressure switch has been triggered. Press reset and check whether the alarm recurs. If the fault recurs, contact your installer. [E040] Low brine flow Low brine flow is often caused by air in the collector system, especially immediately following installation.
  • Page 111 Alarm messages Description [Exxx] ' sensor ' An alarm message is displayed if an error occurs with a sensor that is not connected or has short-circuited and if the value is outside the sensor’s range. If this sensor is important to the system’s operation, the compressor stops. This requires the alarm to be reset manually after the fault has been rectified.

  • Page 112: Factory Settings

    13. Factory settings Designation Factory value Min value Max value Alternative Instal. 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 Room temp reduced °C...
  • Page 113 Designation Factory value Min value Max value Alternative Instal. DHW tank Hot water mode Normal Economic Comfort Stop temp °C Start/stop diff upper °C Max time DHW DHW °C Charge pump % Add heat DHW Smart low price. °C Smart over capacity °C Run time DHW circ.
  • Page 114 Designation Factory value Min value Max value Alternative Instal. Pool Pool temp °C Pool diff °C Max time Pool Charge pump % Smart low price. °C Smart over capacity °C Min RPS External heat source Charge start °C Start/stop diff Smart block cap.
  • Page 116 162 205 22-2 2017-11-14 Enertech AB. P.O Box 309 SE-341 26 Ljungby Sweden. www.ctc.se, www.ctc-heating.com...

This manual is also suitable for:

Ecozenith i350 hEcozenith i350 l 1x230vEcozenith i350 l 3x230v

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