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162 105 50-4 2015-10-26 Providing sustainable energy solutions worldwide Installation and Maintenance Manual CTC GSi 12 Modulating ground source heat pump IMPORTANT READ CAREFULLY BEFORE USE KEEP FOR FUTURE REFERENCE...
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Removing the cooling module GSi 12 • Any work done on the product’s cooling system should be done by authorised personnel only. • Close the safety switch before doing any work on the product. 1. Disconnect the cooling module’s power cable connector and hoses.
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Fill in the information below. It may come in useful if anything should happen. Product: Serial number: Installer: Name: Date: Tel. no.: Electrical installer: Name: Date: Tel. no.: Enertech AB provides the information with reservation for any typing errors and subject to modification. CTC GSi 12...
General Information Congratulations on your new product You have just bought a CTC GSi 12, which we hope the floor circuits. Using the integrated night reduction you will be very pleased with. In the following pages you function, you can set and change the temperature in the can read about how to operate and maintain your heat house during the day, from one day to the next.
Check and filling, heating system Trimming information, heat curve Alarm information Mixing valve Safety valve function test Warranty and insurance Information on procedures for reporting faults ______________________________________ ______________________________________ Date / Customer Date / Installer CTC GSi 12...
Children should be supervised to ensure that they do not play with the appliance. If these instructions are not followed when installing, operating and maintaining the system, Enertech’s commitment under the applicable warranty terms is not binding. CTC GSi 12...
Installer/Settings/Radiator system menu. Recommended values are: Floor heating only Inclination 35 Low temperature system (well insulated houses) Inclination 40 Normal temperature system (factory setting) Inclination 50 High temperature system (older houses, small radiators, poorly insulated) Inclination 60 CTC GSi 12...
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50 °C when the outdoor temperature is –15 °C (if adjustment is set to 0). If the adjustment is set to +5, the temperature will be 55 °C instead. The curve is increased by 5 °C at all temperatures, i.e. it is parallel displaced by 5 °C. CTC GSi 12...
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Inclination 60 °C Adjustment 0 °C In this example, the maximum outgoing primary flow temperature is set at 55 °C. The minimum permitted primary flow temperature is 27 °C (e.g. summer-time basement heating or the floor circuits in a bathroom). Outside Temperature CTC GSi 12...
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On means that the heating is on. The mixing valve operates to the primary flow setpoint and the radiator pump is on. Off means that the heating is switched off and the radiator pump is switched off. - No selection means no function when activated. CTC GSi 12...
270 / 253 Width x Height x Depth 596 x 1907 x 673 Required ceiling height 1910 Noise level (L ) according to EN 12102 vid 0/35 dB(A) Min (20 rps): 35 dB(A) Max (100 rps): 48 dB(A) CTC GSi 12...
General Information The envelope CTC GSi 12 Envelope GSi 12 °C °C Water flow temp ( °C Water return temp ( °C The envelope is based on standard rating running conditions, and may deviate at actual installation. All values at 50 rps.
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General Information 1. Cold water Ø22 2. Hot water Ø22 3. Radiator return Ø22 4. Primary flow Ø22 5. Expansion connection/ Lifting sleeve G 3/4” CTC GSi 12...
Diverting valve Directing the hot water. Flow heater This contains a 9 kW immersion Tap water pump heater for additional heat. Charge pump for domestic hot water Electrical connection box Electrical connection box modul CTC GSi 12...
Smart overcapacity ºC Start at degree minute -500 Diff step, degree minute External heat source Factory User value Main fuse A settings Input voltage 3x400V Charge start ºC Tariff EL Start/ stop diff. Smart block immersion Smart block cap. CTC GSi 12...
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Recharging active -Charge start diff temp °C -Charge stop diff temp °C -Max brine temperature °C Charging EHS-tank Factory User value settings Charge start diff temp °C Charge stop diff temp °C Charge tank temp °C CTC GSi 12...
General Information 4. Menu overview Night reduction heat circ. Start menu CTC GSi 12 Monday 09:35 Weekly program Day by day Monday 22 - 24 -- - -- Tuesday 00 - 06 -- - -- -- - -- -- - --...
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External heat source Remote control Primary flow 2ºC 37 (38) Radiator pump 2 Mixing valve 2 Service Function test Alarm log Factory settings coded Quick start compressor. Software update, USB Write log to USB Control current sensors Re-installation CTC GSi 12...
General Information 5. Detailed menu descriptions Start menu All the settings can be configured directly on screen CTC GSi 12 Monday 09:35 using the well-structured control panel. The large icons operate as buttons on the touch display. Operational and temperature information is also displayed here.
Start menu system has separate room sensors or if you use a fire Frid CTC GSi 12 Monday 09:35 place or open stove. The alarm LED on the room sensor still functions as normal.
General Information 5.2.3 Night reduction temperature Night reduction heat circ. Start menu CTC GSi 12 Monday 09:35 Weekly program Day by day 22 - 24 -- - -- Monday Tuesday 00 - 06 -- - -- Wednesday -- - --...
Start menu Heating circuit 2 (50) CTC GSi 12 Monday 09:35 General Information Night reduction Holiday Room temp. Operation Installer Selecting DHW comfort 22,2 ºC 21,2 ºC 58 ºC -5 ºC Extra Hot water hours You use this to set the DHW comfort level you want and...
This value will vary during operation according to the parameters set, the heating system’s capacity and the current outdoor temperature. CTC GSi 12...
-- - 21 Saturday 10 - 12 20 - 23 Sunday 10 - 12 20 - 23 Weekly schedule 5.4.1 Operation data CTC GSi 12 Operation data Heating system data Status DHW tank °C 49/ 45 (60) Operation data system DHW ºC...
The red curve shows the primary flow temperature of the heated water. Software display PCB: 20120205 Software HP PCB: 20120125 The gray curve shows the primary flow temperature of heating system 2, if installed. The yellow curve shows the return temperature from the heating systems. CTC GSi 12...
Shows whether charging is to tank or bore hole. Valve tank (Y30) When two tanks are being charged by solar power, the position of the diverting valve between the tanks is shown here. Power output kW Shows the panel’s output. CTC GSi 12...
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(Charging bore hole) Status: Shows whether circulation pump is stopped to check whether panel can charge tank. Cooling panel/Cooling tank/Pre-cooling tank/Frost protect panel Status: Displayed when any protection function has been activated. CTC GSi 12...
Settings, Define system and Service. Time/Language Settings Define system Service Time/Language includes time and language settings for your CTC GSi 12. Software display PCB: 20120205 Settings are used both by the installer and users for Software HP PCB: 20120125 installing the system.
Off = there is no heating, the radiator pump does not Electric heater Solar run (is turned over). Diffthermostat/EHS Pool Heating mode, ext --/Auto/On/Off Switching between heating and summer mode can be controlled remotely. Find out more in the section entitled “Define/Remote control”. CTC GSi 12...
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When the room temperature is too low, the message “Low room temperature alarm” is sent to CTC SMS. The room sensor must be connected and activated. NB: For more information on the SMS function, see the “CTC SMS” manual. CTC GSi 12...
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This is the maximum time spent by the heat pump charging the heating circuit if heat is needed in the DHW tank. Charge pump % 100 (Off/1 to 100) Setting for speed of charge pump, when charging the heating circuit. CTC GSi 12...
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This mode starts with Mode 1, followed by Mode 2 and finally by “Your home’s heating settings”. Info golvtorkning estricht Floor function temp ºC 25 (25 to 55) CTC GSi 12 Monday 09:35 Here you set the temperature for 2 as shown above. Room temp. Operation...
Room temp cooling 25.0 On Monday the noise is reduced between 6 am and Smart low price ºC Smart overcapacity 9 am and between 6 pm and 9 pm; normal operation applies apart from these times. CTC GSi 12 Test DHW...
The value is set here to indicate whether the product is connected at 3x400 V, 1x230 V or 3x230 V. Tariff EL Off (On/Off) Find out more in the section entitled “Define/Remote control”. Smart block immersion Off (On/Off) Find out more in the section entitled “Define/Remote control/Smart Grid”. CTC GSi 12...
Def Heat pump Heat pump Compressor: Permitted Flow/level switch None Brine pump on Auto Tariff HP Smart block HP Start at degree minute Max RPS Max RPS silent mode Timer Silent mode CTC GSi 12...
A sensor test carried out at that time of year can lead to some tank heat being dumped in the solar panel, which should be avoided. CTC GSi 12...
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-Tank cooled down to °C 70 (50 to 80) This is where it is indicated what temperature the tank is to be cooled to once it has reached over temperature. When this happens, “extra cooling” will be displayed in operation data. CTC GSi 12...
70 (60 to 125) If the solar panel temperature exceeds “max. panel temp”, energy is allowed to be transferred to the panel Info golvtorkning estricht up to this set tank temperature. CTC GSi 12 Monday 09:35 EHS-Tank Recharging of bedrock Pool Check that the protection function “Over temp...
CTC GSi 12 Monday 09:35 EHS-Tank Charge temperature ºC General Information Room temp. Operation Installer Maximum tank temp ºC Drying period active (25) Room temp. Operation Installer 58 ºC -5 ºC Drying period active (25) 5.12 Settings X-volume Def remote control 58 ºC...
EHS-tank should stop. When the temperature difference falls below this set value, charging stops. Maximum tank temp °C 80 (10 to 95) Setting for the maximum permitted temperature in the EHS-tank. Transfer stops once the set temperature has been reached. CTC GSi 12...
Energy output / 24 kWh 12.3 Load factory settings Energi kWh The product is supplied with the factory values set. They can be restored by activating this function. Press OK to confirm. The language, product and product size are retained. CTC GSi 12...
Expansion valve Main fuse A LED room sensor Log compressor stop been defined, the product will emit an alarm: Comm. error expansion card. Input voltage 3x400 V Cooling Tariff EL Smart block immersion CTC GSi 12 Diff thermostat function DHW tank...
(EHS) or X-volume. EcoTank No (No/Yes) This function activates system 2 with EcoTank buffer tank (or equivalent). Panel connected to exchanger (coil/exchanger) Specify here whether there is a solar coil in the EcoTank or an intermediate exchanger is installed. CTC GSi 12...
G40 is to be used. The expansion card accessory needs to be installed for this function. Define External heat source (EHS) Specify here whether an external heat source is connected to the heating circuit. External heating source No (Yes/No) CTC GSi 12...
The function is activated when pole positions G33 and G34 on the PCB are short-circuited NB: Enertech AB is NOT responsible for the required heat being produced if the remote control has blocked the heating over a long period. CTC GSi 12...
Info golvtorkning estricht CTC GSi 12 Monday 09:35 General Information Charge Maximu Room temp. Operation Installer Remote control Drying period active (25) procedure Remote control procedure 58 ºC -5 ºC Assign input Function test Def remote control First of all, an input is assigned to the function or...
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Closed terminal block = "Off" (in this example) Function test Heating circuit Heat pump Valves Electric heater Solar Diffthermostat/EHS Pool NB: Enertech AB is NOT responsible for the required heat being produced if the remote control has blocked the heating over a long period. CTC GSi 12...
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Additional Domestic Hot Water Select this option if you want to activate the Extra DHW function. NB: Enertech AB is NOT responsible for the required heat being produced if the remote control has blocked the heating over a long period. CTC GSi 12...
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"Ripple control". NB: Enertech AB is NOT responsible for the required heat being produced if the remote control has blocked the heating over a long period. CTC GSi 12...
Smart Grid is based on the energy price being calculated as • Normal price • Low price • Overcapacity Info golvtorkning estricht CTC GSi 12 Monday 09:35 • Blocking Room temperature, pool temperature and hot Charge Maximu water temperature, etc. are given different heating temperatures depending on the energy price.
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* With cooling, the setpoint is reduced to room cooling. NB: Enertech AB is NOT responsible for the required heat being produced if the remote control has blocked the heating over a long period. CTC GSi 12...
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Blocks immersion heater Advanced/Settings/Immersion heater • EHS. Can be blocked in Installer/Settings/External heat source NB: Enertech AB is NOT responsible for the required heat being produced if the remote control has blocked the heating over a long period. CTC GSi 12...
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• Cooling. Room temperature is reduced by 2ºC • EHS. Can be blocked in Installer/Settings/External heat source NB: Enertech AB is NOT responsible for the required heat being produced if the remote control has blocked the heating over a long period. CTC GSi 12...
Charge stop diff temp ºC DHW tank Charge temperature ºC Heating circuit you can also take a look without any code to see what Compressor operation options feature in the menu. Expansion valve Log compressor stop Cooling CTC GSi 12...
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In this situation it is important that you have switched off any major consumers of electricity in the house. Also make sure that the backup thermostat is turned off. Re-installation This command re-launches the installation sequence. See the section entitled “First start”. CTC GSi 12...
Also check that the delivery is complete according to must not be placed the list below. below floor level either. Standard delivery • Heat pump CTC GSi 12 • Filler manifold • Room sensor • Outdoor sensor • 2 x brine hoses • Installation and Maintenance Manual •...
1 or a lower finished installation may be different. To find out about connecting the cold temperature. side, see the section entitled “Connecting the brine system”. CTC GSi 12...
Note that no hot water circulation may be connected as it affects the function of the heat pump and the system. If the heat pump is connected together with another heat source, e.g. an existing boiler, the installations must have separate expansion vessels. Position of expansion vessel. CTC GSi 12...
Installation 10.1.7 Pressure drop graph CTC GSi 12 - warm side Δp l/min GSi-12 pressure drop warm side Δp l/min GSi-12 pressure drop cold side CTC GSi 12...
This comes to an end when one of the following alarms occur: Primary flow sensor 1, HP in-sensor, Comm. error HP or if Primary flow sensor 1 is hotter than 80ºC. Enter settings under Settings/External heat source. CTC GSi 12...
22°C), and the temperature is allowed to fall by one degree before the charge pump starts again. The immersion heater is never used to heat the pool. The expansion card accessory is required to connect pool heating to your heating circuit. CTC GSi 12...
The external heat source tank (01) may also have a solar coil; this means that the heat exchanger (F2), pump (G32) or non-return valve (Y11) is not required. Schematic diagram only The installation engineer fits expansion tank, safety valves, bleeders, etc. and sizes the system. CTC GSi 12...
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The buffer tank (02) may also have a solar coil; this means that the heat exchanger (F2), pump (G32) or non-return valve (Y11) is not required. Schematic diagram only The installation engineer fits expansion tank, safety valves, bleeders, etc. and sizes the system. CTC GSi 12...
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Charging starts when B31 is 7ºC warmer than B42 or B47. Charging stops when there is a difference of 3ºC between B31/B30 or when the charge temperature is reached. Schematic diagram only The installation engineer fits expansion tank, safety valves, bleeders, etc. and sizes the system. CTC GSi 12...
You can also connect the primary flow on one side and the return on the other. See the section entitled “Measurement details for measurements and dimensions”. The pipe between the heat pump and collector loop should have an internal diameter of no less than Ø28 mm. Brine out Brine in CTC GSi 12...
For example, the requirement in some areas is for the system to be installed within a water catchment area. If there is a leak, the compressor and brine pump stop and the Flow/level switch alarm appears on the display. For connection, see the section entitled “Electrical installation”. CTC GSi 12...
Top up with a little brine, if necessary, before fitting the cap. The filter should be checked and cleaned after a short period of operation. CTC GSi 12...
The return water is discharged elsewhere, to a drilled return flow well or similar. The brine pump (G20) and groundwater pump (G21) must be connected to run simultaneously in order to avoid the risk of freezing. For connection, see the section entitled “Electrical installation”. CTC GSi 12...
Installation l/min GSi-12 pressure drop warm side 11.2.5 Pressure drop graph CTC GSi 12 - cold side Δp l/min GSi-12 pressure drop cold side CTC GSi 12...
The circulation pumps in CTCs products are of the energy effi ciency class A. • CTC EcoHeat/EcoPart 406-408 has pump UPM2K 25-70 180. • CTC EcoHeat/EcoPart 410-417 & CTC GSi 12 has pump UPMXL GEO 25-125 180. UPM2K 25-70 180, 1 x 230 V, 50/60 Hz [kPa] EEI ≤ 0.23 Q [m³/h]...
Expansion card accessory For certain system options the product must be supplemented with the expansion card accessory. See the manual provided for how to install the card. Settings which are entered after installation are found in this manual. CTC GSi 12...
Check that the room sensor LED lights up. If not, check the cables and connection. • Select Off using the - button and press OK. If the OK LED goes off, the check is complete. • Return to start menu by pressing the Home button. CTC GSi 12...
Example for 1.2+0.6+0.3 = 2.1 kW. (Factory-set value) 3x400 V Relay EL3A EL2B EL2A EL1B EL1A Factory setting Current 5.2 A 10 A 2.6 A 10 A 1.3 A Power 1.2 kW 2.3 kW 0.6 kW 2.3 kW 0.3 kW CTC GSi 12...
Sensor (B46) is connected to the relay card (A2) at terminal block G65–G66. Circulation pump G46 is connected to the following terminal blocks: Phase: brown Terminal block A:11 Zero: blue Earth: yellow/green Check the function by test running the pump in menu “Installer/Service/ Function test” in the control system. CTC GSi 12...
The sensor (B47) from the external heat source is connected to the relay card (A2) at terminal block G67–68. Connection for controlling the mixing valve (Y41) is done as follows: Black cable Open Terminal block A27 Brown cable Close Terminal block A28 Blue cable Zero Terminal block A29 CTC GSi 12...
Function test” in the control system. Valve 2 tanks (Y30) 230 V 1N~ Diverting valve Y30 is connected at the following terminal blocks: Expansion card X6: Control voltage: black Terminal block X6:4 Phase: brown Terminal block X6:5 Zero: blue Terminal block X6:7 CTC GSi 12...
Operation data menu. Note that the tolerance/accuracy is very low with small current values. From electricity distribution board Connect to G37–G40 on the sensor terminal block. Use at least 0.5 mm cable. Fuse panel Current sensor CTC GSi 12...
If the primary flow sensor for heating circuit 2 is installed, repeat steps 7 to 9 for heating circuit 2. Save these settings 10. The heat pump then starts and the start menu appears. under: Installer/ Settings/Save settings CTC GSi 12...
The DHW circuit, which contains around five litres, is emptied by inserting a hose at the bottom of the cold water connection and then siphoning it off. CTC GSi 12...
If the heat is not even, check: • That the placement of the room sensors is appropriate for the house. • That the radiator thermostats don’t interfere with the room sensor. • That no other heat sources/cold sources interfere with the room sensor. CTC GSi 12...
Motor protection The heat pump constantly monitors the compressor’s operating current and an alarm is triggered if the compressor is using an unusually high current. When a fault occurs the message “Motor protect high current” is displayed. CTC GSi 12...
The remote control affects whether the heating is to be on or off. If the heating is switched off, the information “Heating from heating circuit 1/2” is also shown. Smart: low price/overcap./blocking The product is operated on the basis of “Smart Grid”. See also “Define system/ Remote control/Smart Grid”. CTC GSi 12...
Collectors which are too long can also be a cause. Check also that the brine pump is set to speed 3. Press reset and check whether the alarm recurs. Also check the brine filter that has been installed. If the fault recurs, contact your installer. CTC GSi 12...
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Press reset and check whether the alarm recurs. If the fault recurs, contact your installer and tell them the error code number where applicable. Driver: Offline Communication error. The electrical connection box and driver of the heat pump are not communicating. CTC GSi 12...
Verantwortung, dass das Produkt, GSi 12 som omfattas av denna försäkran är i överensstämmelse med följande direktiv, auquel cette déclaration se rapporte est en conformité avec les exigences des normes suivantes, to which this declaration relates is in conformity with requirements of the following directive, auf das sich diese Erklärung bezieht, konform ist mit den Anforderungen der Richtlinie,...
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Enertech AB. PO Box 309 SE-341 26 Ljungby Sweden. www.ctc.se, www.ctc-heating.com...