62 105 29-2 14/02/2014 Providing sustainable energy solutions worldwide Installation and Maintenance Manual CTC EcoZenith i250
Installation and Maintenance Manual CTC EcoZenith i250 162 105 29-2 14/02/2014
Table of Contents GENERAL INFORMATION INSTALLATION Check list_____________________________________________________________________ 6 Important to remember!______________________________________________ 7 Safety Instructions______________________________________________________ 7 1. Your home's heating installation__________________________ 8 2. Technical data_____________________________________________________ 11 11. Installation___________________________________________________________ 50 3. 4. 5. 6.
General Information General Information Congratulations on buying your new product You have just bought a CTC EcoZenith i250, which we hope you will be very pleased with. In the following pages you can read about how to operate and maintain your boiler. One chapter is written for the property owner and one chapter for the installer. Keep this manual containing the installation and maintenance instructions.
General Information Check list The check list must be completed by the installer. • In the event of a service, this information may be called for. • Installation must always be done according to the installation and maintenance instructions. • Installation must always be carried out in a professional manner. • Following installation, the unit must be inspected, functional checks performed and the customer informed. The points below should be checked off.
General Information Important to remember! Check the following points in particular at the time of delivery and installation: • The product must be transported and stored in an upright position. When moving the product, it can be placed temporarily on its back. • Remove the packaging and check before installation that the product has not been damaged in transit. Report any transport damage to the carrier. • Place the product on a solid foundation, preferably made of concrete.
General Information 1. Your home's heating installation Your home's heating installation 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.
General Information Adjusting the heating curve The method described below can be used to adjust the heating curve correctly. Adjustment if it is too cold indoors • If the outdoor temperature is lower than 0 degrees: Increase the Inclination value by a couple of degrees. Wait 24 hours to see if any further adjustment is required. • If the outdoor temperature is higher than 0 degrees: Increase the Adjustment value by a couple of degrees. Wait 24 hours to see if any further adjustment is required.
General Information 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.
General Information 2. Technical data 2.1 Table 400V 3N~ CTC EcoZenith i250 H Electrical Data 400V 3N~ Electrical data Rated power kW Immersion heater (steps of 0,3 kW) kW Max immersion heater output @ fuse size 16 / 20 / 25 A kW 15.04 15.04 0 - 15.0 9+6 (3) CTC EcoZenith i250 H Heating system Max. operating pressure. thermal store (PS) Max. temperature. thermal store (TS) 223 bar 2,5 °C 110 See pressure drop diagram in the Pipe installation chapter Hot water system Max.
General Information 2.2 Table 230 V 1N~ CTC EcoZenith i250 H Electrical Data 230V 1N~ Electrical data Rated power kW Immersion heater (steps: 3, 5, 7, 9, 12 kW) kW Max immersion heater output @ fuse size 16 / 20 / 25 A kW 12,04 9+3 Max. temperature. thermal store (TS) CTC EcoZenith i250 H l Max.
General Information 1748 / 1497 1904 / 1654 3. Measurements 83 618 / 366 192 595 672 5. Radiator primary flow 22 compression 6. Radiator return Ø22 mm/expansion connection 9 5 6 2 3 423 4 344 1 423 4. Hot water Ø22 595 344 3. Cold water connection Ø22 114 190 2. Safety valve/connection waste pipe 3/4” 22 190 1. Bleeding 8 7 114 10 7. From heat pump (CTC EcoZenith i250L) 8. To heat pump (CTC EcoZenith i250L) 9. Lifting sleeve 3/4” BSP 10.
General Information 4. CTC EcoZenith i250 design The picture below shows the basic construction of CTC EcoZenith i250. 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 system and hot water. The built-in immersion heaters help when additional heat is needed or when a heat pump is not connected.
General Information 5. Parameter list Radiator system Factory value Max. primary flow °C 55 Min primary flow °C Off Heating off, out °C 18 Heating off, time 120 Inclination °C 50 Adjustment °C 0 Room temp red -2 Primary flow reduced -3 User (set) value Heat pump Compressor Blocked Brine pump on 10 days 0 Tariff HP Off Minimum operating time 6 Immersion heaters Factory value Boiler upper °C 50 Boiler upper add °C 57 Boiler XVV °C 60 Boiler upper max. kW 5.
General Information 1 2 Room temperature settings Room temp. Def radiator system 6. Control system The CTC EcoZenith i250 has an advanced yet straightforward control system with a touchscreen on which all settings are entered directly.
CTC EcoZenith Monday 09:35 General Information Room temp. DHW Operation Installer Room temp. Room temp. DHW DHW Operation Operation Installer Installer DHW 21,2 ºC Operation 58 ºC Installer -5 ºC 21,2 ºC 21,2 ºC 58 ºC 58 ºC -5 ºC -5 ºC 21,2 ºC 58 ºC -5 ºC 1 2 1 Room temp. 22,2 1 2 1 ºC 7. Menu overview Start menu CTC EcoZenith Monday 09:35 Room temp.
Room temp. DHW Operation Installer General Information 1 1 2 1 2 21,2 ºC 58 ºC Night reduction heat circ. -5 ºC 2 1 Weekly program Decrease Increase Decrease Increase 2 Room temperature temperature settings settings Room temp. Start menu CTC EcoZenith 1 art menu CTC EcoZenith Heating circuit 2 1 Room temp. DHW 2 Start menu CTC EcoZenith Night reduction 2 1 Installer Monday Holiday 1 09:35 2 22,2 ºC DHW Room temp.
0.0 hours Hot water Heat pump Monday 06-09 18-21 Tuesday 07-09 00-00 Wednesday 06-09 00-00 Compressor On Thursday GeneralCharge Information 06-09 pump00-00 On 47% Friday Svenska Nederlands Brine pump On English 06-09 00-00 Saturday HP in/out °C 00-00 35.5 / 42.3 10-12 Sunday 10-12 00-00 Night reduction heat circ.
Radiator pump Mixing valve Heat pump Delay mixing valve Electric power kW Current L1/L2/L3 Compressor On Charge pump On 47% Brine pump On HP in/out °C 35.5 / 42.3 Night reduction heat circ. General Information Weekly program Decrease Increase Decrease Increase Block Sunday Friday --------------- NR 22:00 14:00 00:00 00:00 Operation data heating 40 Installer settings Installer settings menu Installer 0 -20 Time Time/Language 21:34 16 Out 3 days Holiday period 4.
Installer Installer Bau Par Sto Heating circuit 1 General Information venska Nederlands English DeutschEnglish Svenska Nederlands Deutsch Night reduction 1 Suomi FrançaiseSuomiDanskFrançaise Norsk Dansk Settings menu Settings Settings ating circuit 1 Heating circuit 1 ating circuit 2 Heating circuit 2 at pump Heat pump ctric heater Electric heater per tank Upper tank mote control NR Remote control NR mmunication Communication ve settings Save settings ad settings Load settings ad factory settin
Signal strength Battery Version Current L1 Current L1 4.0Night reduction 4.0 General Information Nederlands English Deutsch Svenska1 Suomi Time Define Cooling Settings Date Cooling Room temp.
General Information 8. Detail Description Menus All the settings can be configured directly on screen using the well-structured control panel. The large icons operate as buttons on the touch display. Operational and temperature information is also displayed here. You can easily enter the different menus to find information on the operation or to set your own values. 8.1 8.2 Description of icons Room temp.
General Information 1 2 8.3 Room temp. Room temp. MB Bau Par Sto Heating circuit 1 This is used to set the desired room temperature. Use the plus and minus buttons to set the temperature you want, which gives you the “setpoint” temperature, in brackets. You can see the current value next to the brackets. If two radiator systems are installed, the values for both are displayed.
General Information 8.3.2 Outdoor Sensor/Room Sensor Faults ! If a fault occurs with an outdoor sensor, an outdoor temperature of -5 °C is simulated so that the house does not get cold. The product's alarm is triggered. If a fault occurs with a room sensor, the EcoZenith i250 automatically switches to operating according to the set curve. The product's alarm is triggered. 1 Night reduction heat circ. Monday 09:35 m temp.
Weekly program Start menu Decrease CTC EcoZenith Increase General Information emperature settings Block Sunday Friday --------------- Decrease Increase NR 22:00 14:00 00:00 00:00 Monday 09:35 oom temp. 1 2 circuit 1 Room temp. 8.3.4 Holiday circuit 2 1 2 1 Holiday 22,2 ºC 2 You use this option to set the number of days that you want the set night reduction temperature to be Night reduction Holiday constantly reduced. For example, if you want to go on holiday.
1 2 3 days Holiday period Night reduction General Information Holiday g DHW comfort 8.4.1 Weekly program DHW HW Weekly program DHW 0.0 hours er You can use this menu to schedule periods during weekdays when you want extra hot water. This schedule is repeated every week. The screen shows the factory values, which can be changed. If you want an additional period some day, e.g. in the evening, you can program Weekly schedulerecurring times. ature al The options are Off or Day by day.
Cooling Temperature General Information No Normal Common heating/cooling No Condense pipe secured No Room temp. cooling 8.5 Operation Heating system data Operation Define SMSdata system Activate GSM? This menu displays current temperatures and the operational data for your heating system. Primary flow radiators The temperature of the primary flow to the house’s radiators is shown above the CTC EcoZenith i250 (42°C).
0.0 hours er Weekly program Monday Tuesday Wednesday Thursday Friday Saturday Sunday ature al Day by day 06-09 18-21 07-09 00-00 General Information 06-09 00-00 06-09 00-00 06-09 00-00 10-12 00-00 10-12 00-00 Weekly schedule 8.5.1 Operation EcoZenith system data peration data system This menu displays current temperatures and the operational data for your EcoZenith i250.
0.0 hours er ature General Information al Weekly program Monday Tuesday Wednesday Thursday Friday Saturday Sunday Day by day 06-09 07-09 06-09 06-09 06-09 10-12 10-12 18-21 00-00 00-00 00-00 00-00 00-00 00-00 Weekly schedule Mixing valve Shows whether the mixing valve increases (opens) or reduces (closes) the heat supplied to the radiators. peration data system When the correct temperature has been achieved with the mixing valve, the valve’s motor then remains stationary.
2 1 2 22,2 ºC 21,2 ºC 58 ºC General Information Weekly program Decrease Increase Decrease Increase emperature settings oom temp. Night reduction heat circ. -5 ºC Shows how much electrical energy that the product has1 used with immersion heater operation (accumulated t reduction heat circ. total value). y 1 (50) Day by day NR time/24 hours h:m 06 - 09 Operating 18 - 21 07 - 09 2 Indicates 20 - 23 the compressor’s operating time for the last 06 - 09 10 - 21 24 hours.
General Information 8.6 Installer t reduction heat circ. gram Day by day NR 06 - 09 This 18 - menu 21 contains four sub-menus: Time/Language, 07 - 09 20 - 23 Settings, Define system and Service. y 06 - 09 10 - 21 06 - --- - 21 Time/Language includes time and language settings for t reduction06heat - -- circ. -- - 21 10 - 12 your 20 - CTC 23 EcoZenith i250. ogram Day by day 10 - 12 20 - 23NR 06 - 09 Settings 18 - 21 are used both by the installer and users for 07 - 09 installing 20 - 23 the system.
Installer ogram me ay ate Day by day 06-09 18-21 07-09 21:34 00-00 06-09 00-00 06-09 2012-02-05 00-00 06-09 00-00 10-12 00-00 10-12 00-00 8.7 r °C °C w °C w °C ump ve venska ng valve wer kW /L2/L3 Suomi HP upper tank 49 (60) This menu is used to set the parameters for your 42 (45) requirements. It is important that this 42 (43) home's heating Stored oper data 34 default setting is adjusted for your property.
General Information Adjustment The adjustment means that the temperature level can be raised or lowered at a specific outdoor temperature. After this default setting, fine adjustment takes place in the “Room temperature” menu. Room temp. reduced Example: Room temp red -2 means that the room temperature is reduced by 2 °C from its normal temperature. 1 -2 (0 to -40) Room temp.
Heating circuit 1 (50) Sav General Information Night reduction Holiday Tariff HP This is used when a dual tariff is used with lower energy costs at set hours of the day. The heat pump can then take advantage of reduced primary energy costs. It must be set to Off. Min oper. time 6 (0 to 20) Minimum operating time in minutes that the compressor is permitted to operate. Even if the tank’s stop temperature has been achieved, the compressor continues to supply energy during this period. 8.7.
Min outdoor temp °C Brine pump on 10 days Tariff HP Minimum run time General Information Night reduction 1 Flow -15 0 Off 6 Holiday 2 Room temp. Lower boiler kW 6 (0/6.0) Setting for the power of the lower immersion heater, 0 and 6 kW respectively. An additional 3 kW is possible. Contact CTC for more information. Delay mixing valve 180 (30 to 240, blocked) The mixing valve delay, the period before it draws energy from the immersion heater, is set here. It can be set from 30 to 240 minutes.
General Information 8.7.5 Remote control 1 2 1 2 Shows the type of remote control selected. “NR” = Remote night reduction, e.g. via the minicall system. SO = Ripple control. Disconnecting the compressor and immersion heater during a certain period which is defined by the electrical supplier (special equipment). DHW = Extra hot water, used along with the Extra DHW button. Room temp. 8.7.6 Communication Room temp.
HP upper tank 49 (60) 42 (45) General Information 42 (43) Stored oper data 34 On Open 180 0.0 0.0 0.0 Heating circuit 2 0.0 0.0 0.0 r °C °C w °C w °C ump ve ng valve wer kW /L2/L3 8.8 Define system ration data heating You can use this option to define your heating system, how the radiator systems are controlled, with or without a room sensor. CTC EcoZenith’s flow switch, GSM and Cooling are also defined here. Definition takes place in conjunction with installation.
Cooling No Common heating/cooling No Condense pipe securedGeneral No Room temp. cooling Information 25 Def heating circuit 8.8.3 Def. SMS This is for defining whether SMS control is installed (accessory). Heating circuit 1 Room sensor 1 Type Define SMS Yes Yes Wire Activate GSM? Yes Activate GSM? Yes (Yes/No) If “Yes”, the menus below will be displayed.
ation 1 data 2 heating Settings eating circuit 1 General Information eating circuit 2 Room temp. eat pump ectric heater pper tank Heating circuit 1 emote control NR ommunication ave settings 20 0 4 8 12 oad settings 8.8.5 Service Room1 settings Prim1 Return Room2 Prim2 oad factory Night reduction Define system 1 Holiday 2 eating circuit 1 eating circuit 2 eat pump Room temp. MS NB: This ooling to use.
General Information HP Brine pump/Fan. Communication Brine pump On/Off. Activation of the fan or brine pump. EcoAir: the fan can be adjusted 0-100% MB address 1 Baud rate 9600 HP Charge pump Parity even Stop bit Charge pump On/Off. Function 1 test 0-100%. Manual defrosting (Only applies to CTC EcoAir) Manual defrosting function test On/Off Compressor heater (Only applies to CTC EcoAir) Communication Communication Compressor heater function test On/Off .
Electric heater L3B Electric heater A13 ogram Day by day 06-09 18-21 General Information 07-09 00-00 06-09 00-00 06-09 00-00 06-09 00-00 Test Heating 10-12 00-00 circuit 10-12 00-00 y ation Off Off Mixing valve1 Open Factory settings coded Rad pump1 On Mixing valve2 Off Rad pump2 Off dataLED EcoZenith room sensor NB: Only anOn authorised r °C °C w °C w °C ump ve ng valve wer kW /L2/L3 ! Svenska Nederlands Alarm log Suomi Latest alarm: Low brine flow Française Time 07:20 6/3 English Deutsch
General Information 9. Operation and Maintenance When the installer has installed your new system, you should check along with the installer that it is in perfect operating condition. Let the installer show you where the switches, controls and fuses are so that you know how the system works and how it should be maintained. Bleed the radiators after around three days of operation and top up with water if required.
General Information 10. Troubleshooting/measures The CTC EcoZenith i250 is designed to provide reliable operation and high levels of comfort, and to have a long service life. Various tips are given below which may be helpful and guide you in the event of an operational malfunction. If a fault occurs, you should always contact the installer who installed your unit. If the installer believes the malfunction is due to a materials or design fault, then they will contact us to check and rectify the issue.
General Information If you do not achieve the set room temperature, check: • that the radiator system is correctly adjusted and is functioning normally. that radiator thermostats are open and the radiators are equally warm all over. Touch the entire radiator surface. Bleed the radiators. The CTC EcoZenith i250's economical operation requires that the radiator system functions well, if you are to make good savings. • that EcoZenith is operating and no error messages are displayed.
General Information Current Monitor The CTC EcoZenith i250 has an integrated current monitor. If the system is fitted with a current sensor, the property’s main fuses are continuously monitored to ensure they are not overloaded. If this should happen, electric stages are disconnected from the CTC EcoZenith. The CTC EcoZenith i250 may be restricted where high heating requirement levels are combined with, for example, single-phase motor heaters, cookers, washing machines or tumble dryers.
General Information 10.1 Information messages Information messages are displayed when appropriate and are intended to inform users about various operational situations. Start delay Start delay The compressor is not allowed to start too quickly when it has stopped. The delay is usually approx. 10 minutes. Heating off, radiator sys Shows that the product is operating in summer-time mode when only hot water is required, not heating. Ripple control Shows that ripple control is active.
General Information 10.2 Alarm messages Alarm: Wrong phase order compressor Reset alarm If a fault occurs with a sensor, for instance, an alarm is triggered. A message appears on the display informing 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. An outstanding fault cannot be reset without being rectified first. Some alarms are reset automatically if the fault disappears.
General Information Alarm text Description 4-way valve alarm This alarm is displayed if a fault occurs with EcoAir's 4-way valve or if the pipes to EcoAir are incorrectly connected. Press reset and check whether the alarm recurs. If the alarm recurs, check that the charge pump is pumping water to the heat pump's lower connection. If the fault recurs, contact your installer. Max. thermostat If the heat pump has been stored in an extremely cold place, the max. thermostat may have been triggered.
Installation 11. Installation Installation This chapter is aimed at anyone responsible for one or more of the installations required to ensure that the product works the way the property owner wants. Take your time going through functions and settings with the property owner and answer any questions. Both you and the CTC EcoZenith i250 benefit from a user who has completely understood how the system operates and should be maintained. 11.
Installation 12. Pipe installation The installation must be carried out in accordance with current standards and regulations. The product must be connected to an expansion vessel in an open or closed system. Do not forget to flush the radiator system clean before connection. Apply all the installation settings based on the description in the chapter on “First start”. 12.1 Filling Filling valve (no. 90, see schematic diagram on next page) is connected to the radiator return pipe.
Installation 12.2.1 Pressure drop in mixing valve The diagram below shows a drop in pressure in the mixing valve. Start with the heat requirement in kW (e.g. 15 kW), then move vertically to the selected ∆t (e.g. 10°C). Then move horizontally to the line for the EcoZenith i250 mixing valve = line 6.3 DN20. The reading for the pressure drop is taken from the scale directly below (4 kPa). For EcoZenith i250, see valve DN20. 6 UPM2, UPM GEO and UPM2K 12.2.
Installation 12.2 Schematic diagram This shows the main connection between the CTC EcoZenith i250 and the property’s radiator and hot water system. Different installations and systems may look different, such as a one- or two-pipe system, which means that the finished installation may be different.
Installation Circulation pump, radiator system (G1) (G2) The circulation pump is fitted on the boiler’s primary flow and must be connected electrically from the boiler, see chapter on Electrical installation. ! Mixing valve DHW (65) NB: It is important to fit a shut-off valve (94) to both the primary and return flows. Install a mixing valve for the hot tap water in order to avoid the risk of scalding. Safety valve DHW (93) Fit the enclosed valve to the incoming cold water connection.
Installation Expansion vessel connection The CTC EcoZenith i250 is best connected to a closed expansion vessel. The CTC EcoZenith i250 is designed to be fitted to an 18 l closed expansion vessel. The expansion vessel is either fitted in the area under the tank or on top of the product (see pictures). The expansion vessel with installation kit is available as an accessory. Expansion vessel for installation above the tank. ! Expansion vessel for installation under the tank.
Installation 12.3 Connection to heat pump The heat pump can be connected on the sides, back, underneath or on top. At least Ø22 mm copper pipe must be used when connecting the CTC EcoZenith i250 to the CTC EcoAir 406-410 and CTC EcoPart 406-410 heat pumps. CTC EcoPart 412 can also be connected to EcoZenith i250 providing that the function exact primary flow is activated. The charge pump for the heat pumps is factory-installed in the CTC EcoZenith i250L.
Installation Pipe connection for CTC EcoZenith i250 H (The picture shows the back of the product) Pipe connection for CTC EcoAir 400 1. Incoming (heated water) from heat pump 2. Outgoing (cold water) to heat pump 3. Preassembled charge pump on CTC EcoZenith i250L installed on 250 H (behind the diverting valves). The pump pumps water to the connected heat pump. Pipe connection for CTC EcoPart 400 4. Outgoing (heated) water to boiler. 5. Incoming (cold) water from boiler.
Installation 12.4 DHW system You can connect a DHW circulation system. You can see this kind of connection in the figure below.
Installation 12.5 External systems (solar heating, pool heating) Grommet The product is adapted for the connection of external systems for energy supply or heat extraction. In order to avoid damage to the product, it is important that any external system is hydraulically separated through a plate heat exchanger. The connection is made to the front of the unit behind the front panel.
Installation 13. Electrical installation Installation and connection in the CTC EcoZenith i250 must be undertaken by an authorised electrician. All wiring must be installed according to applicable regulations. The boiler is internally connected by the factory and set for a 5.5 + 6.0 kW power output. Depending on the country in which CTC EcoZenith i250 is to be installed, it is available with a 400 V or 230 V electrical connection. Electrical connections are made behind the product's front panel.
Installation 13.3 Positioning of electrical components Fast-blow fuses. Backup heating thermostat. Max. thermostat. Upper immersion heater. Connection to display. Terminal block: G41-G48. Charge pump PWM: G45-G46 Terminal block: G31-G40. Return sensor: G31-G32 Extra VV/Night reduction: G33-G34 Current sensor: G37-G40 Communication HP. Terminal block: G51-G53 Brown cable: G51 White cable: G52 Green cable: G53 Terminal block: G11-G22.
Installation 13.4 Electrical connection to heat pump General The CTC EcoAir 406-410 or CTC EcoPart 406-410 heat pumps receive their power supply from the EcoZenith i250 via a separate connector. Charge pump The factory-installed charge pump for heat pumps is connected internally in the CTC EcoZenith i250 L. Charge pump Molex switch The charge pump is connected to CTC EcoZenith i250 H in the preassembled connector (Molex and PWM) located under the electrical cabinet.
Installation 13.4.2 Heat pump power supply 400 V 3N~ The heat pump must be supplied with power from CTC EcoZenith i250 using the provided black connector located in the bottom of the electrical cabinet. (NB: no supply to CTC EcoZenith i250) The minimum group fuse size is specified in “Technical data”. Recommended cable 400 V 3N~ Ölflex 110 5G 2.5 black. The cable is connected between the products in accordance with the heat pump’s instruction manual. 13.4.
Installation 13.5 Extra low voltage protection The following outputs and inputs have extra low voltage protection: current transformer, outdoor sensor, room sensor, primary flow sensor, return sensor, NR/SO, temperature sensor, level switch and PWM signals. Connection of outdoor sensor (B15) The sensor should be set up on the house’s northwest or north side, so that it is not exposed to morning and evening sun.
Installation 13.5.1 Remote-controlled temperature reduction The night temperature reduction function can be activated via a closed function on the electricity remote control input, pins G33 and G34 on the terminal board. The function can be controlled remotely using “Minicall”, for instance. While the input is short circuited, the temperature reduction is activated, regardless of other settings. When the short circuit ceases, the product returns to ordinary settings.
Installation 13.5.3 Terminal boards There are terminal boards for sensors, radiator pumps, etc. behind the panel.
Installation 13.6 Settings made by the installation electrician. The following settings shall be made by the installation electrician after installation: • Select main fuse size • Select the power limitation for the immersion heater. • Check room sensor connection • Check that the sensors connected indicate reasonable values. Carry out the following checks: Main fuse and effect limitation settings See the chapter on First start and where appropriate First start.
Installation 14. Connecting –Increased immersion heater output 15 kW to 18 kW. CTC EcoZenith i250 3x400 V can be reconnected to a 18 kW immersion heater. NB: Installation must be carried out by a qualified electrician. Connecting 1. Begin by disconnecting the power to the product. 2. Free the three black wires with insulation sleeves from the cabling. 3. Undo the smallest switch (K2 on the electrical diagram) by pulling the yellow fastening backwards.
Installation 4. The black wires should have a designation stating the cable number and connection position. For example, 46 K2:1, where the 1 stands for screw joint position 1. Begin by loosening the screw joint at position 1 and freeing the brown wire. Mount the brown and respective black wires in the same screw joint. Repeat for screw joints on positions 3 and 5. Tighten screw joints 1 to 5, inclusive. Remount the switch on the DIN rail and lock using the yellow catch.
Installation 14.
Installation CTC EcoZenith i250 71
Installation 14.
Installation CTC EcoZenith i250 73
Installation 14.3 Component list, wiring diagram No. Component. A1 Display A2 Relay/main card B1 Primary flow sensor 1 G13, G14 B2 Primary flow sensor 2 G15, G16 B5 Upper tank sensor G63, G64 B6 Lower tank sensor G67, G68 B7 Return sensor G31, G31 B11 Indoor sensor 1 G17, G18, G19 B12 Indoor sensor 2 G20, G21, G22 B15 Outdoor sensor G11, G12 COM HP Communication heat pump 74 Terminal block no. G51 = Brown cable, G52 = white cable, G53 = green cable.
Installation 14.4 Resistances for sensors NTC 22K NTC 150 Temperature °C Brine, HP, El.
Installation 15. First start When the CTC EcoZenith i250 is delivered, the heat pump is blocked to avoid it being started unintentionally. EcoZenith I250 can be installed and started before the bedrock/ground source or air/water heat pump is put into operation. The EcoZenith i250 can also be started without a room sensor being fitted as the curve which has been set then regulates the heating. Deselect the room sensor in the Settings menu. The sensor can however always be fitted for the alarm LED function.
Installation First start Switch on the power using the safety switch. The display comes on. CTC EcoZenith i250 now asks the following: 1. Select the language and press next. 2. Confirm that the system is filled with water and press OK. Press next. 3. Size of main fuse Choose between 10 and 35 A. 4. Specify the maximum electric heater power. Choose between 0.0 and 9.0 kW in different steps. (This value does not lock the supply, but the value can be changed in the settings menu.) 5.
Försäkran om överensstämmelse Déclaration de conformité Declaration of conformity Konformitätserklärung Enertech AB Declaration of S-341 26 LJUNGBY Conformity Box 313 försäkrar under eget ansvar att produkten confirme sous sa responsabilité exclusive que le produit, declare under our sole responsibility that the product, erklären in alleiniger Verantwortung, dass das Produkt, EZ250 C1 3x400V E18/ EZ250 C1 1x230V E12/ EZ250 C1 3x230V E14 som omfattas av denna försäkran är i överensstämmelse med följande d
161 421 50 10-01 Enertech AB. P.O Box 309 SE-341 26 Ljungby Sweden. www.ctc.se, www.ctc-heating.
